[MAIPC] FW: Stilt grass question

[Hughes, Jake]

My guess is that light limitation is at work.  Cole and Weltzin found the
same pattern with paw paw (Asimina triloba):

Cole, P.G. and J.F. Weltzin. 2005. Light limitation creates patchy
distribution of an invasive grass in eastern deciduous forests. Biological
Invasions 7(3): 477-488.




On Mon, Sep 28, 2015 at 6:27 AM, Marc Imlay <ialm at erols.com> wrote:

> *Any response for Tom and Jan?*
>
> *Marc Imlay, PhD, **Chair, Biological control working Group *
>
> *Conservation biologist, Park Ranger Office, Non-native Invasive Plant
> Control coordinator.*
> *(301) 442-5657 cell  *ialm at erols.com
>
>
> *Natural and Historical Resources DivisionThe  Maryland-National
> Capital   Park  and Planning Commission**www.pgparks.com
> <http://www.pgparks.com/>*
>
>
>
>
>
>
>
> -----Original Message-----
> From: tomnjan2 [mailto:tomnjan2 at comcast.net]
> Sent: Monday, September 28, 2015 12:16 AM
> To: Marc Imlay <ialm at erols.com>
> Subject: Stilt grass question
>
>
>
> Hi Marc,
>
> Tom (Crone) and I were walking around the back end of Greenbelt Park
> today. He was checking on some multiflora rose he'd cut earlier as well
> stilt grass he cut. But I noticed something I hadn't before. There were
> large swathes of stilt grass that had bare patches within those areas. The
> common denominator was Holly tree leaf shed. We started searching elsewhere
> and found the same correlation. The stilt grass totally avoided wherever
> the dropped holly leaves landed. Have you seen this before, or know if
> there's a specific chemical in the leaf that inhibits or kills the grass?
> Or some other symbiotic relationship creating the inhibition? I'm really
> curious to know. As we were driving out of the park, I started looking at
> the mountain laurel and what I saw didn't seem to be surrounded by stilt
> grass either.
>
>
>
> thanks
>
> Jan Steiner
>
>
>
> Sent from my iPad=
>
>
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-- 
Jake Hughes
Lead Biological Science Technician
Shenandoah National Park
3655 US Hwy 211 E
Luray, VA 22835
Jake_Hughes at nps.gov
Office: 540-999-3500 ext 3492
Fax: 540-999-3697
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