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Global Invasive Species Team listserve digest #086
Fri Jun 01 2001 - 18:44:37 PDT
--CONTENTS--
1. Grazing goats (Oregon)
2. Info on Asphodel Asphodelus fistulosas needed (California)
3. Monitoring methods sought (New Hampshire)
4. Are goats effective? (Oregon)
5. BLM-TNC Northwest Weeds Partnership (Idaho/Oregon/Washington)
6. Executive Director sought for Invasive Plant Council (New York)
7. Literature reviews (Global)
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1. Grazing goats on Dipsacus (Oregon)
From: Ray Guse (rguse(at)tnc.org)
Does anyone know how grazing may affect common teasel (Dipsacus)? We are
currently experimenting with mowing after plants bolt, but before flowering is
completed. This requires a great deal of effort from staff and volunteers
and only covers a small percentage of the area.
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2. Info on Asphodelus fistulosas needed (California)
From: Mike Kelly (mkellysd(at)aol.com)
Has anyone had luck killing Asphodelus fistulosas? Glyphosate seems not to
be very effective, or our timing is off, or something. Is there a good web
site for info on the biology and ecology of this plant?
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3. Monitoring methods sought (New Hampshire)
From: Krista Helmboldt (khelmboldt(at)tnc.org)
Are there any good, simple, efficient protocols for monitoring
the following:
--Baseline and post-release monitoring to evaluate effectiveness of
releasing biocontrol beetles for Lythrum salicaria.
--Baseline and post-control monitoring to evaluate effectiveness of
removal of Vincetoxicum nigrum.
--Baseline and post-control monitoring for Euphorbia cyparissias.
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4. Are goats effective? (Oregon)
From: Karen Allen (kxallen(at)aol.com)
I am trying to find references of those who have tried goats on spotted
knapweed (Centaurea biebersteinii, a.k.a. Centaurea maculosa) or other
weeds and have monitored and documented their success (or lack thereof).
Any ideas??
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5. BLM-TNC Northwest Weeds Partnership (Idaho/Oregon/Washington)
From: Alan Holt (aholt(at)tnc.org)
For the past year, the BLM's Idaho and Oregon/Washington offices and The
Nature Conservancy have been cost-sharing a project to accelerate weed
management in the Northwest through Cooperative Weed Management Areas
(CWMAs) and county weed programs. A Conservation Impact consultant (Will
Murray) was contracted to assist the Washington State Noxious Weed Control
Board, and Cooperative Weed Management Areas in the Tri-State (Hell's
Canyon), Tri-County (eastern Oregon), and Warner Basin (eastern Oregon)
areas in assessing their progress and needs through a "group interview"
process.
The main findings of this analysis are:
* The weed management area concept is successful in reframing the issue
of weed management toward a collaborative, cross-boundary effort.
* The coordinator is the single most important factor in success of the
operations of the weed management area.
* Weed management areas have faithfully followed the strategy spelled out
in the manual Guidelines for Cooperative Management of Noxious Weeds:
Development of Weed Management Areas (Available at the USDA web site by
downloading the self-extracting file stored at
[http://www.team.ars.usda.gov/weeds.exe]. Run this file to unpack its 25
pdf files that can be read using Adobe Acrobat. These contain the Preface,
9 Sections and 15 Appendices for the Guidelines).
* All three weed management areas studied are below a threshold of
investment that will enable them to reach their goals.
* At present, the WMAs are strong on cooperation and effective use of
available funds, but short on clear, long-term goals and estimates of the
resources they will need to succeed.
* Weed managers need training or professional marketing support to enable
them to craft effective public outreach/education programs. Current
efforts do not target key audiences or provide measurable objectives.
* Information management and database/mapping systems are inadequate.
These need to be standardized, populated and maintained as a cornerstone of
successful weed management.
BLM and TNC in the Northwest are now working on several projects to
address these needs, including joint refinement with the Idaho Department
of Agriculture of a database for tracking and sharing weed management
information, shared training, and public education. For information or to
collaborate, contact: Alan Holt, TNC Director of Conservation Programs, NW
and HI Division, (206) 343-4344, or email: aholt(at)tnc.org. or Bob Bolton,
OR-WA Weed Coordinator, BLM, 541-947-6114, or email:
Robert_Bolton(at)or.blm.gov
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6. Executive Director sought for Invasive Plant Council (New York)
From: Neil Gifford (ngifford(at)tnc.org)
The Invasive Plant Council of New York State (IPC NYS) is a non-profit
501(c)(3) organization. Its mission is to educate agencies, organizations,
and the public on the problems presented by invasive plants to New York's
natural communities. The IPC NYS is closely associated with the New York
State Office of The Nature Conservancy (TNC), and IPC staff persons are
TNC employees.
The Executive Director leads the planning and implementation of the
Invasive Plant Council of New York State's programs and activities. The
Executive Director is responsible for developing an organizational
strategic plan and annual work plans. He/she works with Council board
members, public and private agencies, conservation groups, and landowners
to advance the organization's mission. The Executive Director secures
public and private financial resources for IPC operations. He/she directly
supervises IPC NYS staff and volunteers. The Executive Director represents
the IPC's mission and strategic goals to agencies, organizations, and the
general public. The Executive Director is accountable to the IPC NYS Board
of Directors and is supervised by the Chair of the IPC NYS Board and The
Nature Conservancy's New York Deputy Director. Key responsibilities
include program funding, budget administration, and financial monitoring.
For a detailed job description, contact:
Neil Gifford, IPCNYS Chair
Albany Pine Bush Preserve
108 Wade Road
Latham, NY 12110
(518)785-1888 fax
ngifford(at)tnc.org
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7. Literature reviews (Global)
From: John Randall (jarandall(at)ucdavis.edu)
Knapp, L.B and C.D. Canham. 2000. Invasion of an old-growth forest in
New York by Ailanthus altissima: sapling growth and recruitment in canopy
gaps. Journal of the Torrey Botanical Society 127(4): 307-315.
The authors found that Ailanthus saplings dominated several natural
tree-fall gaps in two small patches of old-growth hemlock forest in
eastern New York state. This supports the hypothesis that Ailanthus CAN
invade old-growth hemlock forests. Height, diameter and extension growth
of the tallest Ailanthus saplings were significantly greater than their
tallest native competitors in these gaps which were up to 23 years old.
At any given gap, the ages of Ailanthus saplings differed by only 2-3
years, indicating a limited period of recruitment immediately following
the opening of the gap. No Ailanthus saplings or seedlings over 1 year
old were found under full canopy with the exception of a few believed to
be root-borne shoots of trees growing in nearby gaps.