<br><font size=3 face="sans-serif">Cheers, Bob!</font>
<br>
<br><font size=3 face="sans-serif">My two cents: </font>
<ul>
<li><font size=3 face="sans-serif">A native can most definitely be an invasive.
Teal and Mark's comments elucidate that issue well. </font>
<li><font size=3 face="sans-serif">I'm not sure what list you might be
referring to, but from what I understand of the Federal Noxious Weed list,
I believe that plants that are either naturalized or have completely overrun
the US will not end up on that list. I believe that list tends to include
species that are in the earlier stages of invasion where prevention of
further influxes can still make a difference for slowing the spread. I
also doubt it would be on any state list - those often tend to be geared
to non-natives and ornamental plants - of which poison ivy is neither.
</font></ul>
<br><font size=3 face="sans-serif">It seems like poison ivy falls into
a strange no-man's land - as a native, it doesn't seem to fit on the PCA
ALien Plant WOrking Group listserve - yet the expertise on that list may
be more appropriate (versus this general native plant listserve) because
they are the folks with specific insight on invasive species biology. </font>
<br>
<br><font size=3 face="sans-serif">I wonder if any of the National Park
Service Exotic Plant Management Teams have identified it as among their
top ten target taxa in any of their regions? </font>
<br>
<br><font size=3 face="sans-serif">-Patricia</font>
<br>
<br><font size=2 face="sans-serif">Patricia S. De Angelis, Ph.D.<br>
Botanist, Division of Scientific Authority-US Fish & Wildlife Service-International
Affairs<br>
Chair, Medicinal Plant Working Group-Plant Conservation Alliance<br>
4401 N. Fairfax Dr., Suite 110<br>
Arlington, VA 22203<br>
703-358-1708 x1753<br>
FAX: 703-358-2276<br>
<br>
Promoting sustainable use and conservation of our native medicinal plants.
<br>
<www.nps.gov/plants/medicinal><br>
<br>
Follow International Affairs<br>
> on Twitter </font><a href=http://twitter.com/USFWSInternatl><font size=2 face="sans-serif">http://twitter.com/USFWSInternatl<br>
> on Facebook </font><a href=http://www.facebook.com/USFWS_InternationalAffairs><font size=2 face="sans-serif">http://www.facebook.com/USFWS_InternationalAffairs</font></a></a>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>Robert Layton Beyfuss <rlb14@cornell.edu></b>
</font>
<br><font size=1 face="sans-serif">Sent by: native-plants-bounces@lists.plantconservation.org</font>
<p><font size=1 face="sans-serif">08/27/2012 09:45 AM</font>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">Katy Cummings <katy.e.cummings@gmail.com>,
"native-plants@lists.plantconservation.org" <native-plants@lists.plantconservation.org></font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [PCA] Native Phragmites Data</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2 color=#004080 face="Calibri">Hi All</font>
<br><font size=2 color=#004080 face="Calibri">I am a bit confused and hope
you can enlighten me. I thought that the basic definition of an invasive
plant was that it had to be exotic. There are many native plants
that create almost solid monocultures such as common goldenrod yet can
it be “undesirable” at any density? . Poison ivy can overrun entire areas
but I have never seen it listed as invasive. </font>
<br><font size=2 color=#004080 face="Calibri">Bob </font>
<br><font size=2 color=#004080 face="Calibri"> </font>
<br><font size=2 face="Tahoma"><b>From:</b> native-plants-bounces@lists.plantconservation.org
[mailto:native-plants-bounces@lists.plantconservation.org] <b>On Behalf
Of </b>Katy Cummings<b><br>
Sent:</b> Monday, August 20, 2012 9:28 PM<b><br>
To:</b> native-plants@lists.plantconservation.org<b><br>
Subject:</b> [PCA] Native Phragmites Data</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">Fellow Conservationists-</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">I work for The Nature Conservancy
(TNC) in Door County, WI. My main project this summer has been mapping
exotic and native stands of Phragmites (<i>Phragmites australis</i> and
<i>Phragmites australis americanus</i>) throughout TNC properties in Door
County. I have some questions and experiences to share with you as
our organization tries to learn more about the native/exotic Phragmites
issue. </font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">We all know what havoc the exotic
Phragmites subspecies can wreak on an ecosystem, but do we know anything
about the native subspecies? <b>Is there any research out there
showing that the native Phragmites can behave as aggressively as the exotic?
</b>In Door County, the native usually grows in scattered to moderate
densities along with other wetland plants, with a few patches showing denser
concentrations. There are a few areas where the native has reached
undesirable “dense” concentrations, but as of yet we don’t know why.</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"><b>What other plants are associated
with the native Phragmites?</b> TNC will be setting up monitoring
plots soon on some of our native patches, and when we get that data I’ll
send it to any interested people from this list. The only list I’ve
been able to find is from a chapter by Laura Meyerson et al. in “Invasions
in North American Salt Marshes” entitled “Phragmites australis in Eastern
North America: A Historical and Ecological Perspective”. Does anyone
know of other lists from different regions of the U.S.?</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"><b>Are there any patterns to where
native Phragmites is found? </b>During my mapping of the plant in
Door County, I’ve generally found native Phragmites set back from the
edge of waterways and growing in more marshy areas.</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"><b>What have you all seen as far
as size of patches, number of patches, location, rate of spread, etc. of
the native Phragmites in your area? </b>Most of the wetlands in Door
County are fed by alkaline ground water discharge as a result of movement
through the underlying dolomitic bedrock. I assume that because of
these alkaline conditions we have a higher population of native Phragmites
than perhaps other regions of the Midwest. Is this true? </font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">To help answer these questions,
The Nature Conservancy’s Door Peninsula office has temporarily halted
eradication measures of native lineages of <i>Phragmites</i>. We
are in the process of developing long-term monitoring plots in native <i>Phragmites
</i>stands throughout Nature Conservancy holdings in Door County, WI. The
goals of this monitoring project will be to assess the following questions:</font>
<p><font size=3 face="Times New Roman"><i>1.</i></font><font size=1 face="Times New Roman"><i>
</i></font><font size=3 face="Times New Roman">Under
what conditions do native stands become aggressive?</font>
<p><font size=3 face="Times New Roman"><i>2.</i></font><font size=1 face="Times New Roman"><i>
</i></font><font size=3 face="Times New Roman">At what
threshold is a native stand damaging to the community? </font>
<p><font size=3 face="Times New Roman"><i>3.</i></font><font size=1 face="Times New Roman"><i>
</i></font><font size=3 face="Times New Roman">What
plants are commonly associated with native <i>Phragmites </i>in the Great
Lakes region?</font>
<br><font size=3 face="Times New Roman">If you are interested, I can send
you a more detailed methodology for our monitoring project, including what
parameters we will be sampling. </font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">As an additional note, I’d encourage
people to mention there is a native variety of Phragmites and differentiate
between the two strains in any publications or documents.</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">I look forward to your input!</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=3 face="Times New Roman">Thanks again,</font>
<br><font size=3 face="Times New Roman">Katy Cummings</font>
<br><a href=mailto:katy.e.cummings@gmail.com><font size=3 color=blue face="Times New Roman"><u>katy.e.cummings@gmail.com</u></font></a>
<br><font size=3 face="Times New Roman"><br>
<br>
-- <br>
Katherine E. Cummings<br>
Door Peninsula Conservation Intern<br>
The Nature Conservancy<br>
Sturgeon Bay, WI</font><tt><font size=2>_______________________________________________<br>
native-plants mailing list<br>
native-plants@lists.plantconservation.org<br>
</font></tt><a href="http://lists.plantconservation.org/mailman/listinfo/native-plants_lists.plantconservation.org"><tt><font size=2>http://lists.plantconservation.org/mailman/listinfo/native-plants_lists.plantconservation.org<br>
<br>
Disclaimer<br>
Posts on this list reflect only the opinion of the individual who is posting
the message; they are not official opinions or positions of the Plant Conservation
Alliance.<br>
<br>
To unsubscribe, send an e-mail to native-plants-request@lists.plantconservation.org
with the word "unsubscribe" in the subject line.</font></tt></a>
<br>