Monday, April 16, 2018

webinar training on exotic and invasive diseases on April 24th

Washington State University and the Washington Invasive Species Council will hold a webinar training on exotic and invasive diseases on April 24th. Please share widely.

Help spread the word—social media links:


Cankers, rusts, and bleeding trees, oh my! This webinar will teach you about exotic and invasive diseases that threaten Washington ecosystems. During this webinar you will learn the suspect symptoms and biology of these diseases. Participants will receive information on what to keep an eye out for and how to report potential infections to protect our trees!

Justin Bush
Executive Coordinator
| Washington Invasive Species Council
Washington Recreation and Conservation Office
Office: 1111 Washington ST SE
| Olympia WA 98501
Mail: PO Box 40917
| Olympia WA 98504
Office: (360) 902-3088
|TDD: (360) 902-1996
Report invasive species! | Facebook | Instagram | Twitter

Monday, April 9, 2018

The SWFL CISMA Non-Native Fish Round-Up: Registration is now open!

The SWFL CISMA Non-Native Fish Round-Up registration is now open!  

Please visit to learn more about this year’s roundup which will be held on 2 weekends: April 27th and May 5th. 

Registration is FREE, and we welcome anglers of all ages to join in the competition. There will be great prizes for the largest fish, most fish and a Grand Slam. 

Additionally, there will be a Kids Only Fishing Blitz on location each Saturday. 

Please check out the attached flyer and SHARE with your co-workers, community and friends. We will be giving a prize to the CISMA member with the most referrals, so SHARE far and wide!!!

Thank you!

Erin and Christal

Christal Segura
Senior Environmental Specialist
Collier County Conservation Collier Program
Collier County Parks and Recreation
 3300 Santa Barbara Blvd.
Naples, FL 34106
(239) 252-2495 office
(239) 289-3310 cell    


 Erin P. Myers, DVM, MS
Private Lands Biologist
US Fish & Wildlife Service
12085 SR 29 South
Immokalee, FL 34142
239-657-8009 (office)
239-370-6302 (cell)
239-657-8002 (fax)

Research review: lurking barnacles

Anyone interested in following the Northeast Regional Invasive Species & Climate Change (RISCC) list-serv which provides ‘… a forum for information exchange surrounding the question “How can we manage for upcoming biological invasions in the light of climate change?”’ can send a message to the list administrator at See below for a sample ~

From: [] On Behalf Of Bethany Bradley
Sent: Thursday, April 05, 2018 11:12 AM
Subject: Research review: lurking barnacles

This week's paper is original research (not a review or meta-analysis) that fits within a theme of 'sleeper species'.  These are non-natives that are naturalized, but are currently prevented from becoming invasive by unsuitable climate.  With climate change, there is concern that some 'sleeper species' could become invasive.  You'll see a few more papers on this topic in coming weeks.  Click the citation for a link to the paper.


Under changing climate conditions, introduced species that were once innocuous may reach invasive status if these conditions become more favorable. Here, the authors investigate an invasive barnacle (Austrominius modestus) that was first recorded off the coast of southern Britain in 1955, suffered a large decline after a particularly cold winter in 1995/1996, and has come to dominate in abundance over native species by 2007. After surveys of the two native barnacles and the invasive barnacle, the authors suggest that no other environmental variables (e.g. changes in salinity, food resources, space limitation, competition), besides temperature were likely to cause the changes in population structure. One reason the authors believe temperature is so important here is because the invasive species comes from warmer climates and is limited by cold winters, while one of the native species has a more northern/ boreal range. The authors conclude that biomass of the new ecosystem, now dominated by an invasive, may be more robust to other impacts of climate change. However this comes at the cost of losing local diversity.

Take Home

  • "Sleeper species" like the barnacle described here are naturalized species that are prevented from becoming invasive by intolerance to current climate.  
  • Sleeper species are distinct from species experiencing a lag time:
“The awakening of ecological sleepers after decades due to global warming is in contrast with the common pattern of introduced aliens which after a short initial phase enter a boom and bust development, followed by a long adjustment phase with more moderate densities (Reise et al. 2006).”
  • Cold limited naturalized species may be able to take advantage of more mild winters and become invasive. 
  • Sources of introduction for aquatic introductions typically tend to be from warmer climates (e.g. warm water ports, aquaculture facilities) making these naturalized species potentially problematic.


  • Pay attention to naturalized species that originate in a warmer climate, particularly those that are cold limited.
  • Focus on pathways that introduce invaders from warmer to cooler climates (e.g. invasives from ballast water typically come from warm water ports)

Bethany A Bradley
Associate Professor
Department of Environmental Conservation
318 Holdsworth Hall
University of Massachusetts
Amherst, MA 01003

Monday, March 26, 2018

Chinese Tallow Litter and Tadpoles

Welcome to the weekly updates to CompassLive, the online science magazine of the USDA Forest Service Southern Research Station.
Please forward this update to others who might be interested and encourage them to sign up for their own updates or RSS feeds online at
Follow us on Twitter: @usfs_srs

Chinese Tallow Litter and Tadpoles

nice photoCenturies ago, a tree was plucked out of its native ecosystems and introduced to the U.S. Chinese tallow (Triadica sebifera) is a showy tree with waxy seeds and heart-shaped leaves. Every autumn, its leaves turn crimson or orange before falling to the ground – or the water. “Chinese tallow invades wetlands and riparian areas in […]

Survey of the Most Common and Troublesome Weeds in the U.S. and Canada

Dear Weed Science and Aquatic Plant Management Society Members,
This year’s Survey of the Most Common and Troublesome Weeds in the U.S. and Canada is NOW AVAILABLE:
The 2018 survey focuses on weeds in the following 7 areas:
1) Aquatic: irrigation & flood control
2) Aquatic: lakes, rivers, reservoirs
3) Aquatic: ponds
4) Forestry
5) Natural Areas: parks, wildlife refuges
6) Ornamentals: field nursery crops, outdoor containers, Christmas trees
7) Right-of-Ways: railways, roads, public utilities. 
If you have questions about the survey, please email Lee at
Past weed survey results are available at:  
Lee Van Wychen, Ph.D.          
Science Policy Director
National and Regional Weed Science Societies
5720 Glenmullen Pl, Alexandria, VA 22303
Phone: 202-746-4686
Meetings of the National and Regional Weed Science Societies
Jul. 15 - 18, 2018  Aquatic Plant Management Society (APMS), Buffalo, NY
Dec. 3 - 6, 2018  North Central Weed Science Society (NCWSS), Milwaukee, WI
Jan. 7 - 10, 2019  Northeastern Weed Science Society (NEWSS), Baltimore, MD
Feb. 3 - 7, 2019  Southern Weed Science Society (SWSS), Oklahoma City, OK
Feb. 11 - 14, 2019  Weed Science Society of America (WSSA),  New Orleans, LA
Mar. 11 - 14, 2019 Western Society of Weed Science (WSWS), Denver, CO

Glyphosate, Friend or Foe?

Glyphosate, Friend or Foe?
Join us for a webinar on Apr 18, 2018 at 3:00 PM EDT.
Reports about the harmful effects of glyphosate continue to be in the news every couple of years. Whether it is toxicity to frogs, cancer in rats, or potentially carcinogenic effects in humans, this world leading herbicide is commonly discussed. In this presentation we will review the science behind these claims and debunk some of the myths. We will also frame these claims in a proper context to help us understand whether glyphosate is harmful or a useful product for our industry.

Jason Ferrell is a Professor and Director of the Center for Aquatic and Invasive Plants. He joined UF in 2004 and has been providing research and extension information in the area of agronomic crops, pastures and industrial sites. He has given over 1000 extension presentations and has served as chair or co-chair of 22 graduate students.
After registering, you will receive a confirmation email containing information about joining the webinar.

Thursday, March 8, 2018

Aquatic Plant Management Society is soliciting proposals for a two-year, $40,000 Graduate Student Research Grant (GSRG)


The Aquatic Plant Management Society is soliciting proposals for a two-year, $40,000 Graduate Student Research Grant (GSRG). This grant is awarded biannually to provide for a full-time graduate student to conduct research in aquatic plant or algae management techniques, or in aquatic ecology related to the biology or management of regionally or nationally recognized nuisance aquatic vegetation (macrophytes, algae, or cyanobacteria). Please follow this link for the 2018 GSRG Announcement:

Applications must be postmarked no later than April 15th, 2018. Please address all inquiries to Mark Heilman at