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Global Invasive Species Team listserve digest #127 Mon Jun 14 2004 - 14:02:29 PDT --CONTENTS-- 1. Listserve/web site activities (Global, Planet Earth) 2. Become famous on the web; write an ESA! (Global, Planet Earth) 3. Lobate lac scale (Eastern USA) 4. Prevention Strategies for Invasive Plants (Nationwide, USA) 5. Vehicle washings in remote locations (New Hampshire, USA) 6. TNC signs for postage money (Wherever TNC works) 7. Kummerowia striata and K. stipulacea (Nationwide, USA) 8. Invasive bush lupines (Eastern states, USA) 9. Working with nursery/landscape industries? (Global, Planet Earth) 10. Plant Invaders Book special offer (Mid-Atlantic, USA) 11. A new invasive species assessment protocol (Nationwide, USA) 12. Buckthorn abstract (Texas, USA) --------------------------------------- 1. Listserve/web site activities (Global, Planet Earth) From: Barry Rice (bamrice(at)ucdavis.edu) Yes, the listserve has been very quiet lately. This is partly due to a change in the mail programs being used to process the listserve, and learning curve timescales on my part. Apologies for the tardiness of this listserve posting! If there are formatting problems, readability issues, etc., with this listserve mailing, please contact me! Web site updates: **A new Species Management Summary on Potentilla recta, by Bryan Endress (post-doc at Oregon State University) and Catherine Parks (USFS)! See: http://tncweeds.ucdavis.edu/esadocs/poterect.html **Image updates! We have been updating our image library available on our site. For examples of old and new image quality, compare the updated set of images for Arundo donax: http://tncweeds.ucdavis.edu/esadocs/arundona.html ...to the older style images such as Phragmites australis: http://tncweeds.ucdavis.edu/esadocs/phraaust.html We are slowly updating images, if you are in desperate need of a newly scanned image, send us email and we will try to help. --------------------------------------- 2. Become famous on the web; write an ESA! (Global, Planet Earth) From: Mandy Tu (imtu(at)tnc.org) Are you involved in the research and/or management of a particular invasive species? Have you considered doing a thorough literature search and contacting others that also manage that species, then sharing that information with other natural resource managers? TNC-ISI (previously TNC-WIST) is interested in having new Species Management Summaries (ESAs) written and old ones updated! If you are interested in writing an ESA for us, first check to see if we already have one written at http://tncweeds.ucdavis.edu/esadocs.html, then contact me if there is one that you would like to write. We have recently posted "Instructions for Authors" on that same page. Also let me know if there is one that you would like to have written, so we can add it to our list. --------------------------------------- 3. Lobate lac scale (Eastern USA) From: Tunyalee Martin (tamorisawa(at)ucdavis.edu) The lobate lac scale (Paratachardina lobata lobata) has recently been found on Florida's Cudjoe Key on wax myrtle. The scale was first found in Florida's Broward County in 1999 and has since spread to coastal and inland areas of Collier, Hendry, Lee, Martin, Miami-Dade and Palm Beach counties. The lobate lac scale is 1.5-2 mm long, dark reddish-brown, and has lobes that form an "X" shape when viewed from above. The scales can cause plant branches to wither and die. The scales secrete waste heavy in sugar, which coats the rest of the plant and is a good substrate for black sooty mold to grow. The lobate lac scale feeds on many different trees, shrubs and plants. Thirty-nine native plant species are suitable hosts. More than 120 species in 44 families of woody plants can be attacked. Wax myrtle (Myrica cerifera) and cocoplum (Chrysobalanus icaco) are good hosts of the lobate lac scale and it is recommended to NOT purchase these plants. Unfortunately, another good host is melaleuca, an invasive tree. Large numbers of scales can build up on melaleuca and spread to other areas! For more information visit: **http://monroe.ifas.ufl.edu/dec03_lobate%20lac%20scale.pdf **http://creatures.ifas.ufl.edu/orn/scales/lobate_lac.htm **http://tame.ifas.ufl.edu/media/docs/Lobate.pdf --------------------------------------- 4. Prevention Strategies for Invasive Plants (Nationwide, USA) From: Ellen Jacquart (ejacquart(at)tnc.org) Ellen forwarded us information about a new publication from the Environmental Law Institute (ELI). The document is described as, "Making a List: Prevention Strategies for Invasive Plants in the Great Lakes States surveys plant listing programs in Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin to assess the effectiveness of listing as a tool to prevent the proliferation and spreads of invasive plant species." The report can be bought from ELI for $20, or electronic copies can be downloaded from their web site for free! The url is: http://www.elistore.org/reports_detail.asp?ID=10990 --------------------------------------- 5. Vehicle washings in remote locations (New Hampshire, USA) From: Erin Larson (ehlarson(at)fs.fed.us) White Mountain National Forest is beginning to require that all operators wash their equipment when entering or leaving a project area. Many of our projects are in remote locations, and thus, using a commercial car wash facility or accessing an administrative site is not practical. Are there any suggestion out there on how we might wash the equipment in the field and contain the seed and debris so that it does not spread locally. I know that the Forest Service is working on a prototype for a power washer, but at this time we do not have the money for such equipment. --------------------------------------- 6. TNC signs for postage money (Wherever TNC works) From: Maggie Straub (mstraub(at)tnc.org) As the fiscal year draws to a close, so too, does our use of the old TNC logo. Below please find what we have remaining in our Stewardship sign inventory where the old logo still appears. Rather than throwing these signs away, we would prefer to give them to those who can use them. A Word document showing the signs available, and approximate quantity in the inventory, can be viewed at: http://tncweeds.ucdavis.edu/temp/signs.doc If you wish to receive any of these signs, please contact me with the number of signs desired along with a budget center number for freight charges. --------------------------------------- 7. Kummerowia striata and K. stipulacea (Nationwide, USA) From: Ellen Jacquart (ejacquart(at)tnc.org) I am looking for information on information on the potential invasiveness of Kummerowia striata (Japanese clover) and K. stipulacea (Korean clover, Korean lespedeza). These annuals are popularly planted for wildlife habitat in Indiana and we have little information on their occurrence and potential for spread. They are listed as "lesser threat" invasives in the southeast, but I haven't found other references for them. If you've seen these moving into areas they weren't planted, I'd appreciate hearing about it. --------------------------------------- 8. Invasive bush lupines (Eastern states, USA) From: Nan Hampton (wildflower(at)wildflower.org) We have received a question at the Lady Bird Johndson Wildflower Center concerning clearing of invasive yellow bush lupines (Lupinus arboreus) from the coastal dunes of Maine or anywhere in the East Coast area. Is there, or has there been, a scheduled clearing along the East Coast? There is such a project that occurs in the coastal dunes in Humboldt County California, but I have not been able to find any information about removal of the species on the the East Coast. --------------------------------------- 9. Working with nursery/landscape industries? (Global, Planet Earth) From: Mandy Tu (imtu(at)tnc.org) If you are working locally or at the state level with a group from the nursery or landscape industry, and if they have formally agreed to endorse the St. Louis Codes of Conduct, can you please send the name of the group you are working with to cpc(at)mobot.org to have your group listed among those who have endorsed the Codes? There is some concern from the industry that only 17 groups have endorsed these codes, and that some states with very high production levels are not listed. To see if the group you are working with has been listed, see http://www.mobot.org/invasives/endorsementN.html --------------------------------------- 10. Plant Invaders Book special offer (Mid-Atlantic, USA) From: Jil Swearingen (jil_swearingen(at)nps.gov) Available until 30 June 2004, you can buy bulk quantities of the book, Plant Invaders of Mid-Atlantic Natural Areas, for only $1.50 per book. For more information, see: http://www.nps.gov/plants/alien/midatlinvorder.pdf --------------------------------------- 11. A new invasive species assessment protocol (Nationwide, USA) From: Terri Killeffer (terri_killeffer(at)natureserve.org) NatureServe announces the release of a new scientific methodology evaluating the impacts of non-native plants on native species and conservation areas - An Invasive Species Assessment Protocol: Evaluating Non-Native Plants for Their Impact on Biodiversity (Morse, et. al., NatureServe, 2004). The protocol is designed to make the process of assessing and listing invasive plants objective, systematic, and transparent and will help set priorities focusing scarce management resources on the very worst invaders. In January 2004, NatureServe implemented the protocol at a national level in the U.S., and to date, we have assessed over 300 of the more than 3,500 non-native plants that have escaped cultivation in the U.S. The protocol, Invasive Species Impact Ranks (I-Ranks) and subranks for the 300+ species, and example species with supporting documentation are available on the NatureServe website at www.natureserve.org/getData/plantData.jsp. Funders and Authors: Development of the Invasive Species Assessment Protocol was made possible through charitable support from the Turner Foundation and the National Fish and Wildlife Foundation, with additional funding from the U.S. Air Force and the Federal Highway Administration. The protocol is the result of a collaborative effort by a team comprising Larry Morse, Nancy Benton, and Stephanie Lu of NatureServe, John Randall of The Nature Conservancy's Wildland Invasive Species Team, and Ron Hiebert of the National Park Service. --------------------------------------- 12. Buckthorn abstract (Texas, USA) From: Matthew Fagan (mfagan(at)tnc.org) Below is the abstract from a recent paper by Matthew Fagan and D.Peart. For more information on the paper, contact Matthew at mfagan(at)tnc.org The invasion of forests in the northeastern U.S.A. by glossy buckthorn (Rhamnus frangula L.) has resulted in a dense, non-native shrub layer that frequently dominates the understory. We investigated the effects of buckthorn on the survival and growth of juvenile canopy trees spanning a wide range of shade tolerance (sugar maple (Acer saccharum Marsh.), red maple (Acer rubrum L.), white ash (Fraxinus americana L.), and white pine (Pinus strobus L.)), in a stand dominated by white pine. First, we measured the effect of buckthorn on sapling growth in a field study. Second, we inferred effects on sapling survivorship from age data and from published relationships between radial growth and mortality rate. Third, we evaluated the effects of buckthorn on seedling growth and survival in canopy openings, by felling trees to create experimental gaps. Buckthorn reduced the growth and survival of saplings of all species, and altered the relative abundance of seedlings in favor of shade-tolerant species. Estimates of sapling survival implied that < 10% of tree saplings can survive to grow through high density buckthorn under closed canopies. This reduces the probability that understory saplings will survive to recruit into all newly formed canopy gaps. The experimental results suggest that tree seedlings are most likely to recruit in canopy gaps, despite the generally high buckthorn cover in gaps. Thus, recruitment of tree seedlings in gaps (even under buckthorn) may become the main source of canopy recruits. The increasing dominance of glossy buckthorn in New England pine forests is likely to change the relative abundance of tree species in the forest canopy, and may delay the filling of canopy gaps. |
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