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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>In order to justify invasive plant control funding to reduce the cost of stormwater management, we especially need the contribution by stormwater management experts. Who can provide us an estimate of the storm water management costs along streams? In our region, Japanese Stiltgrass typically covers 20% of the habitat. With this cost information we can estimate the economic contribution of Japanese Stiltgrass to be ~ 20% of the expenditures for storm water management along the steam since it doubles the amount of storm water runoff. Follow up studies will be needed, of course, including info about other invasive plants species that increase storm water runoff. But at least this will be a start. Even costs for just one stream would be helpful. Thanks so much. <o:p></o:p></span></b></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-family:"Arial",sans-serif;color:#002060'>Marc Imlay, PhD, Chair, Biological control working Group, Mid-Atlantic Invasive Plant Council <o:p></o:p></span></b></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-family:"Arial",sans-serif;color:#002060'>Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. <br>(301) 442-5657 cell <a href="mailto:ialm@erols.com" target="_blank" title="blocked::mailto:ialm@erols.com"><span style='color:#002060'>ialm@erols.com</span></a><br>Natural and Historical Resources Division<br>The Maryland-National Capital Park and Planning Commission<br><a href="http://www.pgparks.com/" target="_blank" title="blocked::http://www.pgparks.com/
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blocked::http://www.pgparks.co"><span style='color:#002060'>www.pgparks.com</span></a> </span></b><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#002060'> </span></b><b><span style='font-family:"Arial",sans-serif;color:#002060'><o:p></o:p></span></b></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Ken Bawer [<a href="mailto:kbawer@msn.com">mailto:kbawer@msn.com</a>] <br><b>Sent:</b> Thursday, January 19, 2017 8:32 PM<br><b>To:</b> Marc Imlay <<a href="mailto:ialm@erols.com">ialm@erols.com</a>><br><b>Cc:</b> <a href="mailto:Eliza.Cava@anshome.org">Eliza.Cava@anshome.org</a><br><b>Subject:</b> Fw: the economic cost of stormwater damage caused by invasive species<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div id=divtagdefaultwrapper><p><span style='font-family:"Calibri",sans-serif;color:black'>Hi, Marc.<o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></b></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Eliza Cava, the Audubon Naturalist Society's Director of Conservation, was wondering if there is a "position paper" or fact sheet on this topic.<o:p></o:p></span></b></p><p><span style='font-family:"Calibri",sans-serif;color:black'><o:p> </o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Thanks,<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Ken<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'><o:p> </o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Calibri",sans-serif;color:black'><hr size=2 width="98%" align=center></span></div><div id=divRplyFwdMsg><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Eliza Cava <<a href="mailto:Eliza.Cava@anshome.org">Eliza.Cava@anshome.org</a>><br><b>Sent:</b> Wednesday, January 18, 2017 10:31 AM<br><b>To:</b> 'Ken Bawer'; <a href="mailto:wall@potomac.org">wall@potomac.org</a><br><b>Subject:</b> RE: the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p></div></div><div><div><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Hi Ken,</span><span style='color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Thanks for forwarding, this is very interesting. I think it meshes well with stormwater partners network’s promotion of green infrastructure, which always should focus on (if not be limited to) native plants. I will say that when I first saw your email I read it backwards—I thought you were saying we should promote non-native invasive plants! In the back-and-forth email traffic, have you seen any more formal write-ups or fact sheets we could save in a sort of Stormwater Partners “library”?</span><span style='color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Thanks,</span><span style='color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Eliza</span><span style='color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><table class=MsoNormalTable border=0 cellpadding=0><tr style='height:30.0pt'><td style='border:none;border-right:solid #3CC1F3 1.0pt;padding:0in 15.0pt 0in 0in;height:30.0pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#AEAEAE'><img border=0 width=300 height=142 id="_x0000_i1026" src="cid:ansclrtagresizedcrop5d1e1b"><o:p></o:p></span></p></td><td style='padding:0in 0in 0in 15.0pt;height:30.0pt'><p class=MsoNormal style='line-height:30.0pt'><span style='font-family:"Arial",sans-serif;color:black'>Eliza Cava</span><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#AEAEAE'><o:p></o:p></span></p></td></tr><tr><td colspan=2 style='padding:0in 0in 0in 37.5pt'><p style='line-height:13.5pt'><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#AEAEAE'>Eliza Cava<br>Director of Conservation<br>Audubon Naturalist Society<br>8940 Jones Mill Road<br>Chevy Chase, MD 20815<br>(301) 652-9188 x22<br><a href="mailto:Eliza.Cava@anshome.org">Eliza.Cava@anshome.org</a><o:p></o:p></span></p></td></tr></table><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Ken Bawer [<a href="mailto:kbawer@msn.com">mailto:kbawer@msn.com</a>] <br><b>Sent:</b> Tuesday, January 17, 2017 9:09 PM<br><b>To:</b> Eliza Cava <<a href="mailto:Eliza.Cava@anshome.org">Eliza.Cava@anshome.org</a>>; <a href="mailto:wall@potomac.org">wall@potomac.org</a><br><b>Subject:</b> Fw: the economic cost of stormwater damage caused by invasive species</span><span style='color:black'><o:p></o:p></span></p></div></div><p><span style='color:black'> <o:p></o:p></span></p><div id=divtagdefaultwrapper><p><span style='font-family:"Calibri",sans-serif;color:black'>In case you haven't seen this. Maybe more funding for non-native invasive plants should be promoted as an additional way to control stormwater.<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Ken<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> </span><span style='color:black'><o:p></o:p></span></p><div><div><div><p><span style='font-family:"Calibri",sans-serif;color:black'>---------- Forwarded message ----------<br>From: <b>Marc Imlay</b> <<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>><br>Date: Tue, Jan 10, 2017 at 8:39 PM<br>Subject: [APWG] the economic cost of stormwater damage caused by invasive species<br>To: <a href="mailto:ficmnew@ls.ars.usda.gov" target="_blank">ficmnew@ls.ars.usda.gov</a>, <a href="mailto:apwg@lists.plantconservation.org" target="_blank">apwg@lists.plantconservation.org</a><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> </span><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>I participated in a conference call on invasive species with one item on the agenda to update the economic impact of invasive species. There are many kinds of economic impact besides the cost of removing invasives. For example, the economic cost of stormwater damage caused by invasive species. </span></strong><strong><span style='font-family:"Arial",sans-serif;color:blue'>Many studies have shown that Japanese Stiltgrass doubles the amount of nitrogen and storm water released into the Chesapeake Bay. The primary reason is that the tiny root system replaces the complex root system with a variety of niches that are necessary to hold water and release it slowly. This argument could be used in general for </span></strong><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>other</span></strong><strong><span style='font-family:"Arial",sans-serif;color:blue'> non-native invasive species replacing a complex of many native species with different root systems of different depths etc. </span></strong><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>In our region the surface of Japanese Stiltgrass has expanded typically to now cover over 20% of the habitat. </span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'> Does anyone have a cost update for the economic cost of stormwater damage caused by invasive species. Thanks.</span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'> Marc</span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> <a href="mailto:aliens-l-request@list.auckland.ac.nz">aliens-l-request@list.auckland.ac.nz</a> [<a href="mailto:aliens-l-request@list.auckland.ac.nz">mailto:aliens-l-request@list.auckland.ac.nz</a>] <b>On Behalf Of </b>Pamela Zevit Adamah Consultants<br><b>Sent:</b> Wednesday, January 11, 2017 1:01 AM<br><b>To:</b> <a href="mailto:aliens-l@list.auckland.ac.nz">aliens-l@list.auckland.ac.nz</a><br><b>Subject:</b> RE: [Aliens-L] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>This would be a very helpful piece of information to have! I think of all the efforts dealing with <i>Fallopia</i> and <i>Impatiens</i> infestations in riparian areas, the impacts in watershed integrity are similar to that of increased stormwater runoff – a simplified and degraded aquatic environment less capable of performing historic ecological services or watershed functions. </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>I can’t think of any investigations here in the Pacific Northwest that looked at how these two stressors interact? Which is a gap that would be worth filling given the strong investment in salmon habitat and wetland restoration. In Metro Vancouver integrated stormwater plans are legally mandated across the region for all watersheds, there is also a lot of effort by municipalities to deal with invasive plants in those same watersheds. But the two aren’t necessarily dealt with in an interrelated way. Which they should be given the projections for increased intensity for rainfall events due to climate change coupled with ongoing development pressures..</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Pamela</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:Papyrus;color:#4F6228'>Pamela Zevit, RPBio <br>Adamah Consultants </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:Papyrus;color:#4F6228'>Coquitlam BC Canada<br>604-939-0523 </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:Papyrus;color:#4F6228'><a href="mailto:adamah@telus.net"><span style='color:#4F6228'>adamah@telus.net</span></a> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:Papyrus;color:#4F6228'>Re-connecting People & Nature </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:10.0pt;font-family:Papyrus;color:#4F6228'>Science World - Scientists & Innovators in Science Ambassador</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span lang=EN-CA style='font-size:14.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Ielmini, Michael -FS [<a href="mailto:mielmini@fs.fed.us">mailto:mielmini@fs.fed.us</a>] <br><b>Sent:</b> Wednesday, January 11, 2017 9:14 AM<br><b>To:</b> <a href="mailto:ialm@erols.com">ialm@erols.com</a><br><b>Subject:</b> RE: [ficmnew] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:#1F497D'>THANKS MARC! Very helpful!!! I can use this information in the work we do. I will ask our economists about the costs. I don’t know much about the stormwater issue.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:#1F497D'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:#1F497D'>Cheers,</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><table class=MsoNormalTable border=0 cellpadding=0 width=480 style='width:5.0in'><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%'><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><table class=MsoNormalTable border=0 cellpadding=0><tr><td valign=top style='padding:.75pt .75pt .75pt .75pt'><p><span style='color:#1F497D'><img border=0 width=69 height=65 id="Picture_x0020_1" src="cid:image001.png@01D27176.10D01E40" alt="Forest Service Shield"></span><o:p></o:p></p></td><td valign=top style='padding:.75pt .75pt .75pt .75pt'><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%'><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><p><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>Mike </span></b><b><span style='font-size:10.0pt;color:black'>I</span></b><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>elmini, </span></b><b><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:red'>Certified Wildlife Biologist </span></i></b><b><sup><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:red'>©</span></sup></b><b><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:black'><br></span></b><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>National </span></b><b><span style='font-size:10.0pt;color:black'>I</span></b><b><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black'>nvasive Species Program Manager</span></b><o:p></o:p></p></td></tr><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><p><b><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:black'>Forest Service </span></b><o:p></o:p></p><p><b><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#28742E'>National Forest System Headquarters</span></b><o:p></o:p></p></td></tr><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><p><b><span style='font-size:8.5pt;font-family:"Arial",sans-serif;color:#555555'>p: 202-205-1049 <br>c: 202-365-8851 <br><a href="mailto:mielmini@fs.fed.us">mielmini@fs.fed.us</a></span></b><o:p></o:p></p></td></tr><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><p><span style='font-size:8.5pt;font-family:"Arial",sans-serif;color:#555555'>201 14th Street <br>Washington, DC 20250<br><a href="http://www.fs.fed.us/">www.fs.fed.us</a> <br></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><a href="http://usda.gov/"><span style='font-size:8.5pt;font-family:"Arial",sans-serif;text-decoration:none'><img border=0 width=20 height=14 id="Picture_x0020_2" src="cid:image002.png@01D27176.10D01E40" alt="http://wwwstatic.fs.usda.gov/images/email/usda-logo.png"></span></a><a href="https://twitter.com/forestservice"><span style='font-size:8.5pt;font-family:"Arial",sans-serif;text-decoration:none'><img border=0 width=19 height=16 id="Picture_x0020_3" src="cid:image003.png@01D27176.10D01E40" alt="Twitter Logo"></span></a><a href="http://facebook.com/USDA"><span style='font-size:8.5pt;font-family:"Arial",sans-serif;text-decoration:none'><img border=0 width=16 height=16 id="Picture_x0020_4" src="cid:image004.png@01D27176.10D01E40" alt="Facebook Logo"></span></a></span><o:p></o:p></p></td></tr><tr><td style='padding:2.25pt 2.25pt 2.25pt 2.25pt'><p><b><span style='font-size:9.0pt;font-family:"Arial",sans-serif;color:#28742E'>Caring for the land and serving people</span></b><o:p></o:p></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table><p><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'> </span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'><a href="mailto:aliens-l-request@list.auckland.ac.nz">aliens-l-request@list.auckland.ac.nz</a>; on behalf of; Judith S. Weis <<a href="mailto:jweis@andromeda.rutgers.edu">jweis@andromeda.rutgers.edu</a>><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>On the other hand, Phragmites removes more nitrogen and metals than Spartina - so would reduce stormwater damage. So you can't generalize about damage by "invasive species" but look at each one.></span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Holly Sletteland [<a href="mailto:hslettel@calpoly.edu">mailto:hslettel@calpoly.edu</a>] <br><b>Sent:</b> Wednesday, January 11, 2017 12:04 PM<br><b>To:</b> 'Marc Imlay' <<a href="mailto:ialm@erols.com">ialm@erols.com</a>><br><b>Subject:</b> RE: [APWG] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:#1F497D'>Good point! Increasing erosion is frequently talked about, but not in the context of stormwater damage. Thanks!</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Judy Lathrop [<a href="mailto:lathrop.judy@gmail.com">mailto:lathrop.judy@gmail.com</a>] <br><b>Sent:</b> Saturday, January 14, 2017 1:19 PM<br><b>To:</b> Marc Imlay <<a href="mailto:ialm@erols.com">ialm@erols.com</a>><br><b>Subject:</b> Re: FW: [APWG] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><b><span style='font-family:"Tahoma",sans-serif;color:black'>Thank you Marc - very valuable information. Is CBT aware of these studies? I'm wondering in writing a grant if we need to cite the studies or if we just need to mention stiltgrass, and CBT will know the significance...</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>On Fri, Jan 13, 2017 at 3:33 PM, Marc Imlay <<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>> wrote:<o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>Hi Judy and Antonia,</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>Cost of responding to stormwater for an area could be divided by the % of surface covered by stiltgrass to get an estimate of economic damage caused by the invasive species if not controlled. </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Bookbinder, Antonia [<a href="mailto:Antonia.Bookbinder@pgparks.com">mailto:Antonia.Bookbinder@pgparks.com</a>] <br><b>Sent:</b> Friday, January 13, 2017 3:35 PM<br><b>To:</b> Marc Imlay <<a href="mailto:ialm@erols.com">ialm@erols.com</a>>; 'Judy Lathrop' <<a href="mailto:lathrop.judy@gmail.com">lathrop.judy@gmail.com</a>><br><b>Subject:</b> RE: [APWG] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:#1F497D'>This is extremely useful – thanks!</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>Antonia Bookbinder<br>Sustainability Instructor, Special Programs Division<br>Department of Parks and Recreation, Prince George’s County<br>The Maryland-National Capital Park & Planning Commission<br>7833 Walker Drive, Suite 110<br>Greenbelt, MD 20770<br><a href="tel:301-446-3464" target="_blank">301-446-3464</a> (work)<br><a href="tel:301-706-5237" target="_blank">301-706-5237</a> (cell)<br><a href="mailto:antonia.bookbinder@pgparks.com" target="_blank">antonia.bookbinder@pgparks.com</a><br><a href="http://www.pgparks.com/" target="_blank">www.pgparks.com</a><br>Live More, Play More</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> John Cecil [<a href="mailto:john.cecil@njaudubon.org">mailto:john.cecil@njaudubon.org</a>] <br><b>Sent:</b> Friday, January 13, 2017 10:36 AM<br><b>To:</b> <a href="mailto:ialm@erols.com">ialm@erols.com</a><br><b>Subject:</b> RE: [APWG] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'>Hi Marc, </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'>Thanks for raising the question of impacts of invasive plants on storm water. I’d be very interested to know of any data and publications that might shed light on this issue. </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'>I was also very interested to learn of the references regarding increased nutrification as caused by invasive plants and earthworms. Do you have copies of those papers that you can share?</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Calibri",sans-serif;color:black'>John</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><a name="_MailEndCompose"></a><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>John Cecil</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>Vice President for Stewardship</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>New Jersey Audubon</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>1024 Anderson Road</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>Port Murray New Jersey 08865</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>908-396-6481 Office</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:8.0pt;font-family:"Calibri",sans-serif;color:black'>973-262-4981 Cell</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Marc Imlay [<a href="mailto:ialm@erols.com">mailto:ialm@erols.com</a>] <br><b>Sent:</b> Saturday, January 14, 2017 9:25 PM<br><b>To:</b> Garrett, Chris <<a href="mailto:Chris.Garrett@pgparks.com">Chris.Garrett@pgparks.com</a>>; 'mellis@umd.edu' <<a href="mailto:mellis@umd.edu">mellis@umd.edu</a>>; Rudder, Joshua <<a href="mailto:Joshua.Rudder@pgparks.com">Joshua.Rudder@pgparks.com</a>>; Bookbinder, Antonia <<a href="mailto:Antonia.Bookbinder@pgparks.com">Antonia.Bookbinder@pgparks.com</a>><br><b>Cc:</b> 'Judy Lathrop' <<a href="mailto:lathrop.judy@gmail.com">lathrop.judy@gmail.com</a>><br><b>Subject:</b> FW: the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>On January 10 I participated in the conference planning group for running the annual National Invasive Species Awareness Week on Capitol Hill. ( I received a National award last year at the NISAW conference). I accepted the request from the working group:</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Seminar Topics and Speakers Update</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Helvetica",sans-serif;color:black'>.</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>B. Mark is going to investigate a speaker on economic impact of invasive</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>species with emphasis on municipal stormwater management costs</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>associated with Japanese stilt weed</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Marc Imlay [<a href="mailto:ialm@erols.com">mailto:ialm@erols.com</a>] <br><b>Sent:</b> Saturday, January 14, 2017 8:51 PM<br><b>To:</b> 'Judy Lathrop' <<a href="mailto:lathrop.judy@gmail.com">lathrop.judy@gmail.com</a>><br><b>Subject:</b> the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>I suspect CBF is not aware of these studies. </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:black'> Judy Lathrop [<a href="mailto:lathrop.judy@gmail.com">mailto:lathrop.judy@gmail.com</a>] <br><b>Sent:</b> Saturday, January 14, 2017 1:19 PM<br><b>To:</b> Marc Imlay <<a href="mailto:ialm@erols.com">ialm@erols.com</a>><br><b>Subject:</b> Re: FW: [APWG] the economic cost of stormwater damage caused by invasive species</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><div><div><p><span style='font-family:"Tahoma",sans-serif;color:black'>Thank you Marc - very valuable information. Is CBT aware of these studies? I'm wondering in writing a grant if we need to cite the studies or if we just need to mention stiltgrass, and CBT will know the significance...</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p></div></div><div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><div><p><span style='font-family:"Calibri",sans-serif;color:black'>On Fri, Jan 13, 2017 at 3:33 PM, Marc Imlay <<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>> wrote:<o:p></o:p></span></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'>Hi Judy and Antonia,</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'> Cost of responding to stormwater for an area could be divided by the % of surface covered by stiltgrass to get an estimate of economic damage caused by the invasive species if not controlled. </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:#1F497D'> </span></b><b><span style='font-family:"Arial",sans-serif;color:black'>Marc Imlay, PhD, Chair, MAIPC Biological control working Group Conservation biologist, </span></b><b><span style='font-family:"Arial",sans-serif;color:red'><br>Chair of the Natural Places Committee for the Maryland Chapter of the Sierra Club.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Calibri",sans-serif;color:black'>Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. </span></strong><b><span style='font-family:"Calibri",sans-serif;color:black'><br><strong><span style='font-family:"Calibri",sans-serif'><a href="tel:(301)%20442-5657" target="_blank">(301) 442-5657</a> cell, <a href="mailto:ialm@erols.com" target="_blank"><span style='font-weight:normal'>ialm@erols.com</span></a></span></strong></span></b><span style='font-family:"Calibri",sans-serif;color:black'><br><strong><span style='font-family:"Calibri",sans-serif'>Natural and Historical Resources Division</span></strong><b><br><strong><span style='font-family:"Calibri",sans-serif'>The Maryland-National Capital Park and Planning Commission</span></strong><br></b><a href="http://www.pgparks.com/" target="_blank" title="blocked::http://www.pgparks.com/
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blocked::http://www.pgpa"><strong><span style='font-family:"Calibri",sans-serif;text-decoration:none'>www.pgparks.com</span></strong></a></span><span style='font-family:"Calibri",sans-serif;color:blue'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><div><p><b><span style='font-family:"Calibri",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><div><p><span style='font-family:"Calibri",sans-serif;color:black'>---------- Forwarded message ----------<br>From: <b>Marc Imlay</b> <<a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a>><br>Date: Tue, Jan 10, 2017 at 8:39 PM<br>Subject: [APWG] the economic cost of stormwater damage caused by invasive species<br>To: <a href="mailto:ficmnew@ls.ars.usda.gov" target="_blank">ficmnew@ls.ars.usda.gov</a>, <a href="mailto:apwg@lists.plantconservation.org" target="_blank">apwg@lists.plantconservation.org</a><o:p></o:p></span></p><div><div><p><span style='font-family:"Calibri",sans-serif;color:black'> </span><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>I participated in a conference call on invasive species with one item on the agenda to update the economic impact of invasive species. There are many kinds of economic impact besides the cost of removing invasives. For example, the economic cost of stormwater damage caused by invasive species. </span></strong><strong><span style='font-family:"Arial",sans-serif;color:blue'>Many studies have shown that Japanese Stiltgrass doubles the amount of nitrogen and storm water released into the Chesapeake Bay. The primary reason is that the tiny root system replaces the complex root system with a variety of niches that are necessary to hold water and release it slowly. This argument could be used in general for </span></strong><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>other</span></strong><strong><span style='font-family:"Arial",sans-serif;color:blue'> non-native invasive species replacing a complex of many native species with different root systems of different depths etc. </span></strong><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'>In our region the surface of Japanese Stiltgrass has expanded typically to now cover over 20% of the habitat. </span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'> Does anyone have a cost update for the economic cost of stormwater damage caused by invasive species. Thanks.</span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Arial",sans-serif;color:#1F497D'> Marc</span></strong><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <strong><span style='font-family:"Calibri",sans-serif'>Conservation biologist, Park Ranger Office, Non-native Invasive Plant Control coordinator. </span></strong><b><br><strong><span style='font-family:"Calibri",sans-serif'><a href="tel:(301)%20442-5657" target="_blank">(301) 442-5657</a> cell, <a href="mailto:ialm@erols.com" target="_blank"><span style='font-weight:normal'>ialm@erols.com</span></a></span></strong></b><br><strong><span style='font-family:"Calibri",sans-serif'>Natural and Historical Resources Division</span></strong><b><br><strong><span style='font-family:"Calibri",sans-serif'>The Maryland-National Capital Park and Planning Commission</span></strong><br></b><a href="http://www.pgparks.com/" target="_blank" title="blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/
blocked::http://www.pgparks.com/
blocked::blocked::blocked::http://www.pgparks.com/
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blocked::http://www.pgpa"><strong><span style='font-family:"Calibri",sans-serif;text-decoration:none'>www.pgparks.com</span></strong></a></span><span style='font-family:"Calibri",sans-serif;color:blue'> </span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><strong><span style='font-family:"Arial",sans-serif;color:blue'> </span></strong><b><span style='font-family:"Arial",sans-serif;color:black'>-----Original Message-----</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>From: Marc Imlay</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>To: <a href="mailto:RNORTHROP@dnr.state.md.us" target="_blank"><span style='color:windowtext;text-decoration:none'>RNORTHROP@dnr.state.md.us</span></a></span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Cc: Steve McKindley-Ward</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Sent: 6/3/2002 11:21 PM</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Subject: RE: Siltgrass and hydrology</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Hi Rob</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Joan Ehrenfeld, et al. Changes in Soil Functions Following Invasions of Exotic Understory Plants in Deciduous Forests. Ecological Applications 11(5), 2001, pp. 1287-1300 (Ecological Society of America)</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>P. S. Kourtev, et al. Differences in Earthworm Densities and Nitrogen Dynamics in soils under Exotic and Native Plant Species. Biological Invasions 1: 237-245, 1999</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Some findings I noted in the papers:</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> pH elevated from 4.5-4.8 (Vaccinium) to 5.5-6.5 (stilt grass) in two parks in New Jersey. Nitrification rates and Extractable NO3 were also much higher with Microstegium. Very low root biomass, loss of organic soil horizon and great increase in (European) earthworms.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>(increased from 30-280 worms/m2). Litter was reduced by two thirds.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Marc</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>-----Original Message-----</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>From: <a href="mailto:RNORTHROP@dnr.state.md.us" target="_blank"><span style='color:windowtext;text-decoration:none'>RNORTHROP@dnr.state.md.us</span></a> [<a href="mailto:RNORTHROP@dnr.state.md.us" target="_blank"><span style='color:windowtext;text-decoration:none'>mailto:RNORTHROP@dnr.state.md.us</span></a>]</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Sent: Friday, May 31, 2002 4:07 PM</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>To: <a href="mailto:ialm@erols.com" target="_blank"><span style='color:windowtext;text-decoration:none'>ialm@erols.com</span></a></span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>Subject: Siltgrass and hydrology</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Hi Marc,</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Could you send me the citation(s) for the publication(s) on the role of siltgrass in eastern US hydrology?</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> There was a fellow at the MCC talk that wanted the citation for the Borman and Likens study at Hubbard Brook concerning forest biomass development. Do you remember who that was? He never gave me his name and I wanted to pass along the information.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Thanks for your help and consideration. I look forward to hearing from you.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'> Rob Northrop</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>DNR Forest Service</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>130 McKinneytown Road</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'>North East, MD 21901</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:black'><a href="tel:(410)%20287-2918" target="_blank">410-287-2918</a></span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> </span><b><span style='font-family:"Arial",sans-serif;color:black'> </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:red'>Marc Imlay, PhD <br>Chair of the Biodiversity and Habitat Stewardship Committee for the Maryland Chapter of the Sierra Club.</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:red'> Marc Imlay, PhD, Chair, MAIPC Biological control working Group Conservation biologist, </span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:red'>Park Ranger Office, Non-native Invasive Plant Control coordinator. </span></b><span style='font-family:"Calibri",sans-serif;color:black'><a href="mailto:Marc.Imlay@pgparks.com" target="_blank"><b><span style='font-family:"Arial",sans-serif;color:red;text-decoration:none'>Marc.Imlay@pgparks.com</span></b></a><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:red'><a href="tel:(301)%20442-5657" target="_blank">(301) 442-5657</a> cell Natural and Historical Resources Division</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><b><span style='font-family:"Arial",sans-serif;color:red'>The Maryland-National Capital Park and Planning Commission</span></b><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p><div style='margin-top:5.0pt;margin-bottom:5.0pt'><div class=MsoNormal align=center style='text-align:center'><span style='color:black'><hr size=2 width="100%" align=center></span></div></div><p><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> Rogner, David [<a href="mailto:drogner@howardcountymd.gov" target="_blank">mailto:drogner@howardcountymd.gov</a>] <br><b>Sent:</b> Friday, October 10, 2014 12:23 PM<br><b>To:</b> <a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a><br><b>Cc:</b> Farfaras, Cheryl<br><b>Subject:</b> Question about Invasives and Hydrology</span><span style='font-family:"Calibri",sans-serif;color:black'><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Hi Marc,<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> I am writing you with a question about whether there are studies that show how removing invasive plants in the understory correlates to positive effects on water quality or macroinvertabrate habitat in streams. You seem like the guy who could point me in that direction. We are hoping to write a grant here at the middle patuxent environmental area to remove about 3 acres of invasive autumn olive, multiflora rose, barberry, amur honeysuckle, bittersweet and do native replantings. But it’s a grant that should relate to positive effects on water quality somehow. Please let me know if you have any ideas on how I could describe this for the grant due October 31st. <o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> Many Thanks,<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> Davey Rogner <o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> <a href="tel:(301)%20523-2879" target="_blank">301-523-2879</a><o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> Invasive Species Project Manager<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> Middle Patuxent Environmental Area <o:p></o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p><span style='font-family:"Calibri",sans-serif;color:#1F497D'> </span><b><span style='font-family:"Calibri",sans-serif;color:black'>From:</span></b><span style='font-family:"Calibri",sans-serif;color:black'> Laurie Taylor Mitchell [<a href="mailto:ltmitchell4@comcast.net" target="_blank">mailto:ltmitchell4@comcast.net</a>] <br><b>Sent:</b> Tuesday, October 11, 2016 6:47 PM<br><b>To:</b> <a href="mailto:ialm@erols.com" target="_blank">ialm@erols.com</a><br><b>Subject:</b> your e-mail on Green is Good<o:p></o:p></span></p></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> Hi Marc,<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> There is still time to show people the vast unfolding disaster of Japanese Stiltgrass around the Loch Raven Reservoir this season before it all goes yellow – actually right now it is peaking or just beyond the peak growth.<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>You are absolutely right, there is no substitute for seeing a huge area in person! Getting them on a site is crucial.<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> If a relationship through research could ever be demonstrated between invasives taking over the reservoir and a degradation of the water supply for over a million people, that would be great. That’s the only thing that is going to work as far as I can tell. If I’ve already asked you about this, please forgive me – and could you send it again?<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'> Thanks,<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Laurie<o:p></o:p></span></p></div></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p></div></blockquote></div><p><span style='font-family:"Calibri",sans-serif;color:black'> <o:p></o:p></span></p></div></div><p><span style='font-family:"Calibri",sans-serif;color:black'> </span><span style='color:black'><o:p></o:p></span></p></div></div></div></div></div></div></div></div>
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