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<DIV><FONT face=Arial size=4>Hello all,</FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4>Is there anyone who acknowledges (or would it be
simpler to say "does not acknowledge") that there is at least a
phenomenological difference between "alien" species that are largely
restricted to disturbed sites and those which "invade" healthy ecosystems?
</FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4>I realize that some of the terminology used here is
debatable too, and such discussion are worth having, but it would appear, if
"invasion ecology" is to be taken seriously as a sub-discipline of ecology, that
clarity of terminology is vital to clear communication. Time was, colonization
referred to any movement of an organism into a "new" location, plants (what
about animals?) that were restricted to disturbed areas were termed "ruderal,"
and "alien" organisms that colonized healthy/undisturbed ecosystems were called
"invasive." </FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4>It appears that some believe there is no
distinction. I would appreciate any correction, definitions, or suggestions that
will bring discipline to communication about these subjects. </FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4>WT</FONT></DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
<DIV><FONT face=Arial size=4></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=wvanderploeg@ameritech.net
href="mailto:wvanderploeg@ameritech.net">Wayne Vanderploeg</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=Dominic.Maze@portlandoregon.gov
href="mailto:Dominic.Maze@portlandoregon.gov">Maze, Dominic</A> ; <A
title=katie@westernwatersheds.org
href="mailto:katie@westernwatersheds.org">Katie Fite</A> ; <A
title=apwg@lists.plantconservation.org
href="mailto:apwg@lists.plantconservation.org">apwg@lists.plantconservation.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, July 19, 2011 10:24
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [APWG] Jewelweed</DIV>
<DIV><BR></DIV>
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif">
<DIV>Hello All, <BR><BR>I don't usually make comment to this group....I
generally browse this list to see what new issues are popping up. As a
biologist/ecologist/naturalist/land manager for 31 years in the Chicago area
with the Forest Preserve District of Cook County, I have seen this plant come
and go. Deer do browse it heavily and tend to prefer it over most other
plants. It does well in disturbed areas where the soil is rich, moist
and semi shaded. I have always viewed it as sensitive plant that is
easily displaced by weeds and never thought of it as a problem plant in the
Chicago area. The fact that it is spreading prolifically in other areas
where it typically does not occur could be a symptom of a bigger
problem. I would expect it to disappear when those problems are
discovered and solved. <BR><BR>Wayne Vanderploeg<BR></DIV>
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif"><BR>
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman,new york,times,serif"><FONT
face=Tahoma size=2>
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> "Maze, Dominic"
<Dominic.Maze@portlandoregon.gov><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> Katie Fite
<katie@westernwatersheds.org>; "apwg@lists.plantconservation.org"
<apwg@lists.plantconservation.org><BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tue, July 19, 2011 11:42:18
AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [APWG]
Jewelweed<BR></FONT><BR>
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<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hi Katie et
alia,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> <I><SPAN
style="FONT-STYLE: italic">Impatiens capensis</SPAN></I> is, in my experience,
a problematic species here west of the Cascade Range in the Pacific NW.
The densities of this sp. are pretty amazing with the understory of
riparian corridors often dominated by it. I’ve been seeing more and more
of it in the Willamette Valley and surrounding ranges here in Oregon with
seemingly little attention paid to it.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">
Interestingly, some land managers still consider this species native here on
the West Coast, probably due to confusion with our native, <I><SPAN
style="FONT-STYLE: italic">I.</SPAN></I><I><SPAN style="FONT-STYLE: italic">
ecalcarata</SPAN></I> in some older floras and field guides. Ed Alverson
of TNC wrote a short comment in reply to a posting on <I><SPAN
style="FONT-STYLE: italic">I.</SPAN></I><I><SPAN style="FONT-STYLE: italic">
capensis</SPAN></I> at the Botany Photo of the Day website:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><SPAN class=apple-style-span><FONT face="Arial Narrow"
color=#333333 size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: rgb(51,51,51); FONT-FAMILY: 'Arial Narrow'">“Impatiens
capensis is an introduced and invasive species in the Pacific Northwest , west
of the Cascades. Peter Zika addressed this issue in a 2006 paper, "The status
of Impatiens capensis (Balsaminaceae) on the</SPAN></FONT></SPAN><FONT
face="Arial Narrow" color=#333333><SPAN
style="COLOR: rgb(51,51,51); FONT-FAMILY: 'Arial Narrow'"><BR><SPAN
class=apple-style-span>Pacific Northwest coast", published in the Journal of
the Torrey Botanical Club, vol. 133 pp. 593-600. In fact, I. capensis is
spreading into the habitats of the uncommon native I. ecalcarata west of the
Cascades, and the two species are hybridizing. This has created a situation
where the native species is potentially being out-competed by both the
introduced species and by their hybrids. Zika has published another paper on
the hybrid, which he has named Impatiens x pacifica , see "Impatiens x
pacifica (Balsaminaceae), a New Hybrid jewelweed from the Pacific Northwest
Coast of North America", Novon vol. 16, pp. 443-448,
2006.</SPAN>”</SPAN></FONT></P>
<P class=MsoNormal><SPAN class=apple-style-span><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"></SPAN></FONT></SPAN> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Add this spp. to
<I><SPAN style="FONT-STYLE: italic">I. glandulifera</SPAN></I> (a big problem)
and <I><SPAN style="FONT-STYLE: italic">I.</SPAN></I><I><SPAN
style="FONT-STYLE: italic"> balfourii</SPAN></I> (an escaping species which
may be a problem in the future), and we’ve got our hands full out here with
the touch-me-nots.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><B><FONT face=Calibri
color=green size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: Calibri">Dominic
Maze</SPAN></FONT></B><FONT face=Calibri color=green size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: Calibri"> |
</SPAN></FONT><FONT face=Calibri color=gray size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri">Invasive Species
Coordinator </SPAN></FONT><FONT face=Calibri color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Calibri"></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri color=gray
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri">City
of </SPAN></FONT><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Calibri"><FONT color=gray><SPAN
style="COLOR: gray">Portland</SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray"> Environmental Services</SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Calibri"><FONT color=gray><SPAN
style="COLOR: gray">1120 SW 5th Avenue</SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray">, Room 1000</SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Calibri"><FONT color=gray><SPAN
style="COLOR: gray">Portland</SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray">, </SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray">Oregon</SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray"> </SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray">97204</SPAN></FONT><FONT color=gray><SPAN
style="COLOR: gray"></SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri color=gray
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri">p: (503)
823-4899</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri color=gray
size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri">f:
(503) 823-5344</SPAN></FONT><FONT color=navy><SPAN
style="COLOR: navy"></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Calibri color=gray
size=2><SPAN style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri"><A
href="mailto:dominic.maze@portlandoregon.gov" target=_blank rel=nofollow
ymailto="mailto:dominic.maze@portlandoregon.gov">dominic.maze@portlandoregon.gov</A></SPAN></FONT><FONT
face=Calibri color=gray size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: gray; FONT-FAMILY: Calibri"></SPAN></FONT></P></DIV>
<DIV>
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<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">
apwg-bounces@lists.plantconservation.org
[mailto:apwg-bounces@lists.plantconservation.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Katie Fite<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, July 18, 2011 5:46
PM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
apwg@lists.plantconservation.org<BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [APWG]
Jewelweed</SPAN></FONT></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Calibri size=2><SPAN
style="FONT-SIZE: 11pt; FONT-FAMILY: Calibri"><BR>Has anyone had any
experience with jewelweed (Impatiens) native to the eastern U. S. becoming
weedy in valley marsh habitats in the intermountain West? <BR><BR>I see that
jewelweed <I><SPAN style="FONT-STYLE: italic">Impatiens capensis</SPAN></I>
(orange jewelweed) is listed as a King County (WA) “Weed of Concern”.
<BR><BR>This species is shown as having a yellow flowered form, which is what
we are seeing.<BR><BR><SPAN><A
href="http://www.kingcounty.gov/environment/animalsAndPlants/noxious-weeds/laws/list.aspx"
target=_blank>http://www.kingcounty.gov/environment/animalsAndPlants/noxious-weeds/laws/list.aspx</A></SPAN><BR><BR>Katie
Fite<BR>Western Watersheds Project<BR><A
rel=nofollow>katie@westernwatersheds.org</A><BR><BR> </SPAN></FONT>
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