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Invasive species costing over 1. 3 trillion over 4 decades
/Scientists have just released the most comprehensive estimate to date of the financial toll of invasive species: nearly $1.3 trillion over four decades.
Read full article here: www.sciencedaily.com/releases/2021/03/210331143039.htm
The Importance of Marine Bivalves in Invasive Host–Parasite Introductions
/Although research into the ecology and impacts of invasive species is prevalent, there are knowledge gaps relating to the role of invasive species in parasite transmission. This work synthesises invasive host–parasite interactions and impacts, using marine bivalves as a model group, to consider how global movement of shellfish consignments for aquaculture purposes facilitates the unintentional transfer of invasives. We discuss how invasive species can act as both hosts or parasitic organisms themselves, and introductions may lead to diseases within the bivalve aquaculture sector. This review highlights the importance of interdisciplinary research, with particular regard to the fields of parasitology and invasion ecology. We suggest that further integrating these fields will enhance critical knowledge of marine diseases, parasite-invasive-bivalve interplay dynamics, and potential mitigation strategies, including temperature-based disease surveillance models. We also address how climate change might impact invasive species, again with a focus on marine bivalves, and the potential outcomes for parasite transmission, including changes in host/parasite distribution, life-history and virulence. We acknowledge the importance of horizon scanning for future invasive host–parasite introductions and note that increased screening of invasive species, both in their native and invaded ranges, will provide clarity on invasion dynamics and potential impacts.
REVIEW ARTICLE
Front. Mar. Sci., 26 February 2021 | https://doi.org/10.3389/fmars.2021.609248
Worst Invasive Species Areas Ranked in Western States
/Non-indigenous Aquatic Species (NAS) threaten our lakes, rivers, streams and oceans. Often introduced by unknowing recreational users, these harmful invasives can drastically alter aquatic ecosystems, foul equipment, and negatively impact native species. Invasive species are slowing spreading throughout the United States, Wildlife Forever and partners with the Bureau of Land Management (BLM) and United States Geological Survey (USGS) decided to take a look at the current and potential future impact of NAS in the West.
Invasive Species Infestations by Congressional District. Congressional Districts west of the 100th meridian ranked by Infestation Score. The higher the score, represented by a dark red color, the more infested the area is by Nonindigenous Aquatic Species.
Invasive Species in Forests and Rangelands of the United States: A Comprehensive Science Synthesis for the United States Forest Sector
/This open access book describes the serious threat of invasive species to native ecosystems. Invasive species have caused and will continue to cause enormous ecological and economic damage with ever increasing world trade. This multi-disciplinary book, written by over 100 national experts, presents the latest research on a wide range of natural science and social science fields that explore the ecology, impacts, and practical tools for management of invasive species. It covers species of all taxonomic groups from insects and pathogens, to plants, vertebrates, and aquatic organisms that impact a diversity of habitats in forests, rangelands and grasslands of the United States. It is well-illustrated, provides summaries of the most important invasive species and issues impacting all regions of the country, and includes a comprehensive primary reference list for each topic. This scientific synthesis provides the cultural, economic, scientific and social context for addressing environmental challenges posed by invasive species and will be a valuable resource for scholars, policy makers, natural resource managers and practitioners.
U.S. Department of the Interior: Invasive Species Strategic Plan 2021-2025
/“The Department of the Interior’s (Interior) Invasive Species Strategic Plan (Plan), developed pursuant to the John D. Dingell, Jr. Conservation, Management, and Recreation Act (Public Law 116-9), provides an overarching framework for the broad spectrum of activities that are performed by ten of Interior’s Bureaus and multiple offices. The Plan includes goals, objectives, strategies, and performance measures, as well as crosscutting principles that guide its implementation. The strategies reflect both work that is ongoing and opportunities to focus on emerging priorities. While Bureaus often have their own invasive species management plans, this Plan, for the first time, outlines a comprehensive approach across Interior that both builds upon existing plans and serves as an overarching strategy.”
U.S. Department of the Interior: Invasive Species Strategic Plan 2021-2025
Living on the Water: An updated guide for floating home owners and marina managers
/West Multnomah Soil & Water Conservation District and Scappoose Bay Watershed Council recently announced the publication of the newly updated Living on the Water: A Guide for Floating Home Owners and Marina Managers.
The 46‐page guide includes information on floating home safety, construction, repair and maintenance, particularly as these activities may affect water quality. It also includes information on enhancing aquatic habitat, living with and enjoying wildlife, and managing invasive species. Highlights of the guide include:
Fire prevention to protect homes and moorages, and emergency response tips
General facility management practices to reduce environmental impacts
How to keep belongings from blowing away
The benefits of native vegetation, including less work
Invasive species to look out for - see pages 27-31
Local wildlife – what to expect and how to better enjoy wildlife
Where moorage managers and homeowners can go for more information – including 6 pages of online resources
You can download the complete guide from West Multnomah Soil & Water Conservation District’s website. Limited printed copies are available upon request. Contact us at info@wmswcd.org to request a copy.
Use of Plant Materials for Revegetation and Restoration after Wildfire
/USDA Forest Service factsheet on the use of plant materials for revegetation and restoration after wildlife. While it is specific to the Willamette National Forest in terms of specific species used, the principles are broadly applicable. Please contact your local forest Botanist for specific information.
Use of Plant Materials for Revegetation and Restoration after Wildfire
Assessing the ecological niche and invasion potential of the Asian giant hornet
/Brief Report - Abstract
The Asian giant hornet (Vespa mandarinia) was recently detected in western British Columbia, Canada and Washington State, United States. V. mandarinia are an invasion concern due to their ability to kill honey bees and affect humans. Here, we used habitat suitability models and dispersal simulations to assess potential invasive spread of V. mandarinia. We show V. mandarinia are most likely to establish in areas with warm to cool annual mean temperature, high precipitation, and high human activity. The realized niche of introduced populations is small compared to native populations, suggesting introduced populations could spread into habitats across a broader range of environmental conditions. Dispersal simulations also show that V. mandarinia could rapidly spread throughout western North America without containment. Given its potential negative impacts and capacity for spread, extensive monitoring and eradication efforts throughout western North America are warranted.
Link to full report: https://www.pnas.org/content/early/2020/09/21/2011441117?fbclid=IwAR284F3_4ifji7faMqm8w9d81e4iBeYY4KANH6CXIF0h233dY-LZsbfDL6o
(ISRP 2020-08) Final Report: Category Review of Resident Fish and Sturgeon Projects - Independent Scientific Review Panel
/Link to Full Report published August 6, 2020: https://www.nwcouncil.org/sites/default/files/ISRP%202020-08%20FinalResFishSturg6Aug.pdf
Excerpt from Introduction:
This report provides the Independent Scientific Review Panel’s (ISRP1 ) recommendations and comments on 44 proposals submitted for the Resident Fish and Sturgeon Category Review to implement the Columbia River Basin Fish and Wildlife Program. The ISRP finds that 30 proposals meet scientific review criteria and 10 proposals meet scientific criteria with some conditions requiring further action…
This report provides final recommendations on each project and includes our preliminary report comments and response requests. The report also provides a discussion of programmatic issues that apply across projects to inform Program development and performance. Programmatic topics include native and non-native fish management, lake and river fertilization, habitat protection versus restoration, climate change, adaptive management, multicultural perspectives, integration of projects within geographic areas, and improving communication. The ISRP strives to ensure that its multi-year recommendations for the projects and the Program have a sound, well-documented scientific foundation.
Society of American Foresters Western Forester: Invasives (2020)
/April/May/June 2020 Society of American Foresters Western Forester: Invasives (Vol. 65, Number 2)
The Western Forester is a publication prepared approximately quarterly for members of the Society of American Foresters and non-industrial private forest landowners in the Pacific NW (AK, WA, ID, western MT, OR, northern CA).
Invasive Species Terminology: Standardizing for Stakeholder Education (2020)
/Abstract
The excessive number of terms associated with invasive species, and their often incorrect usage, hinders stakeholder education about the threats of invasive species. Here we introduce seven terms (native, nonnative, introduced, established, invasive, nuisance, and range change) that are applicable across invasive taxa, understandable, typically interpreted correctly, and useful for describing most situations regarding invasive species. We also list six terms to avoid (native invasive, invasive exotic, invasive weed, alien, foreign, and nonindigenous) that create confusion via their misuse and misinterpretation. The terms we propose will increase understanding, thereby promoting behavior changes aimed at limiting the negative impacts of invasive species.
Invasive Species Strategy 2020-2030 - Portland at the Crossroads (2019)
/In 2020, Portland City Council unanimously approved the Portland Invasive Species Strategy 2020-2030, a project that charts a new course for how the city and community address invasive species and the impacts they cause. With decades of work in mostly natural areas tackling invasive species, and with new invasive species on Portland’s doorstep poised to threaten watershed health and pipes, pumps, and waterfronts, the city is protecting investments and saving money over the long haul.
Invasive Species Strategy 2020-2030, Portland at the Crossroads