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Invasive Species

7 news articles per week.
32 connected topics.

News and Opinion

Coverage of invasive species since April 7, 2021.

City of Winnipeg, non-profit, working to diversify battered tree canopy

"...From the massive 2019 snowstorm, to invasive species, Dutch Elm Disease, and drought, it seems Winnipeg's trees just can't catch a break. Global News reporter Malika Karim brings us the latest on efforts to maintain and restore the urban tree canopy..."

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Roadside invader: The higher the traffic, the easier the invasive common ragweed disperses

"...Surprisingly, high-traffic road cells displayed a consistently high population growth rate even in shaded and less disturbed road sections - meaning that shading alone would not be enough to control ragweed invasions in these sections. Population growth proceeded even on roadsides with less suitable habitat conditions - but only along high-traffic roads, and declined with reduced traffic intensity. This indicates that seed dispersal by vehicles and by road maintenance can compensate, at least partly, for less favorable habitat conditions..."

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The American public is responsible for identifying over a quarter of new invasive species

"..."Regulatory and land management organizations invest substantially to protect agriculture, ecosystems, and economies from harmful invasive species, and the public serves an important role in this. The more eyes we can get on the problem, the better," Epanchin-Niell said..."

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How to stop invasive species in their tracks this hiking season Merritt Herald

"...It’s been a long winter and many of us are looking forward to getting outside and hitting the trails. Did you know that as we traverse through muddy areas, we are inadvertently picking up invasive plant seeds and transporting them along the trail?   Whether you’re a hiker, biker, horseback rider, or off-roader, there are some simple actions you can carry out to stop invasive species in your tracks!  ..."

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Conservation Efforts Focus On Prairie Community Pastures

"...In Saskatchewan and Manitoba, there are 141 Community Pastures that cover an area twice the size of Prince Edward Island and support at least 36 bird and plant species at risk. According the Nature Conservancy of Canada (NCC), the continued existence and good management of these lands contributes to biodiversity, water quality, soil conservation, and storing carbon..."

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Petsmart Kelowna stops selling fish, cites federal oversight and invasive species

"...“We are working quickly with our provincial, territorial and federal partners to take appropriate measures to stop the import and further distribution of products potentially containing prohibited zebra mussels and to promote the responsible disposal of products already in the hands of Canadians. ”The threat over zebra mussels is being taken serious by the federal government, according to Fisheries and Oceans Canada, as the invader can destroy aquatic ecosystems, fish populations, hydro power stations, agriculture irrigation systems and other infrastructure. “They multiply rapidly and are extremely difficult to eradicate once they become established in an area,” it said..."

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Monique Keiran: Learn more about our world by joining a citizen science project

"...But last year, as we reeled from public health-ordered shutdowns, many events were postponed or cancelled. The Mount Arrowsmith Biosphere Region bioblitz, the Metchosin bioblitz, the Parksville wetlands mini-bioblitz, and others, hit the brakes..."

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Citizen scientists asked to look for bugs and birds in upcoming ‘BioBlitz'

"...Mandy Hobkirk, Biosphere-wide Blitz organizer and Mount Arrowsmith Biosphere Region coordinator, says BioBlitz data is used to examine the biodiversity and species richness of an area, and to see if there are changes over time such as fluctuations in populations or increases in invasive species. (Vancouver Island University photo)..."

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Climate change will hit ‘endemic’ plants and animals the hardest, study warns Carbon Brief

"...The synthesis study, published in Biological Conservation, finds that more than 90% of endemic species will face negative consequences – such as reduced populations – if global warming reaches 3C above pre-industrial levels. However, it adds that invasive species are expected to see overall neutral or positive impacts from the warming climate..."

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'Catch it, kill it and dispose of it properly': Prussian carp invade southern Alberta lake

"...Frank Lake is a water body just east of High River. It's a wetland conservation project and a popular spot for bird lovers. The lake is fed from treated effluent from the town and the Cargill plant..."

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New Forest Service assessment delivers research on invasive species

"...MADISON, WI, April 8, 2021 - USDA Forest Service scientists have delivered a new comprehensive assessment of the invasive species that confront America's forests and grasslands, from new arrivals to some that invaded so long ago that people are surprised to learn they are invasive. The assessment, titled "Invasive Species in Forests and Rangelands of the United States: A Comprehensive Science Synthesis for the United States Forest Sector," serves as a one-stop resource for land managers who are looking for information on the invasive species that are already affecting the landscape, the species that may threaten the landscape, and what is known about control of invasive species. "Understanding the ecology of invasive species, their dynamics and complex ecological, economic, and societal interactions is critical to improving management strategies and reducing impacts to native ecosystems," said Cynthia West, director of the Forest Service's Northern Research Station and the Forest Products Laboratory..."

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Recommended Reading

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Jobs in invasive species

Recent employment opportunities from across Canada.

Operations Coordinator - Okanagan and Similkameen Invasive Species Society (Summerland, BC)

"...Are you passionate about a healthy environment? Are you experienced in team leadership? OASISS is looking for a highly motivated individual for our Operations Coordinator..."

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Engineering Technologist - Environmental Programs - Municipality of North Cowichan (Duncan, BC)

"...If you are self-motivated, looking to take on a new challenge where you can make a difference, enjoy both responsibility and accountability, and are ready to join one of British Columbia’s most inclusive and environmentally conscious municipalities, we look forward to receiving your application!..."

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Recent episodes that mention invasive species.

#179 Jake Muise: Harvesting wild meat in Hawaii. The Maui Nui story. Conservation / invasive species / venison / food / ecology

Duration: 01:14:03

"...Jake Muise is the co-founder of Maui Nui Venison based in Hawaii..."

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6/26/20 - Tick App; Saginaw River Water Quality; Spotted Lanternfly

Duration: 03:00

"...The Tick App gives users tips on avoiding ticks and lets them share their tick exposure..."

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Informative Video

Discussions, Documentaries, and Investigative Reports about invasive species.

African Fish Eagle: Defying the Danger in Naivasha | Giving Nature A Voice | Free Documentary Nature

"...Giving Nature A Voice - Season 1, Episode 3: The African Fish Eagle - Defying Danger in Naivasha | Nature Documentary ..."

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Biodiversity 101

"...Think about this rain forest… that coral reef… these grasslands… these mountains..."

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Lake Victoria - A Man-Made Ecological Disaster | Giving Nature A Voice | Free Documentary Nature

"...300 native fish species have been wiped out by invasive species and overfishing..."

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Partner Perspective: Goldfish in Alberta

"...Alberta Environment and Parks staff are joined by the City of Lethbridge, Oldman Watershed Council and Alberta Invasive Species Council to discuss the impacts from goldfish on storm water management ponds and the environment..."

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Academic Research

Recent peer-reviewed papers about invasive species relevant to the latest news.

A Global Perspective on the Influence of the COVID-19 Pandemic on Freshwater Fish Biodiversity

"...We conclude with a candid assessment of the current management and policy responses and the extent to which they ensure freshwater fish populations and biodiversity are conserved for human and aquatic ecosystem benefits in perpetuity..."

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The invasive aquatic fern Azolla filiculoides negatively impacts water quality, aquatic vegetation and amphibian larvae in Medi

"...Among invasive species, floating plants have a great impact on aquatic ecosystems, forming dense mats that cause a great alteration of the physical and chemical water features..."

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Temperate deciduous shrub phenology: the overlooked forest layer

"...Temperate deciduous shrub phenology plays a pivotal role in forest ecology by regulating the timing of suitable habitat and food of a range of organisms as well as influencing the timing and duration of the carbon uptake period especially in early spring and late autumn when trees are leafless..."

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Emerging infectious diseases threatening food security and economies in Africa

"...We also identified evolution of hypervirulent pathotypes, introduction of alien invasive species, intensification and simplification of agroecosystems, climate change and lack of biosecurity policies as factors favouring disease emergence..."

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Quantifying linkages between watershed factors and coastal wetland plant invasion in the US Great Lakes

"...Context Freshwater coastal wetlands provide numerous ecosystem services, including habitat, nutrient uptake, coastal stabilization, and aesthetic value, but the integrity of these ecosystems is threatened by invasion of non-native competitors..."

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Butterflies as an indicator group of riparian ecosystem assessment

"...These results suggest that butterfly species use actively riparian habitats for nectar and larval food, and the butterfly riparian quality index can be employed to track faunal change in riparian habitats, which are frequently threatened by disturbances such as water level and climate changes, and invasive species..."

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Mating and reproductive characteristics of the pathogenic nematode Bursaphelenchus xylophilus

"...Pine wood nematode (Bursaphelenchus xylophilus), one of the most destructive invasive species, has caused extremely serious economic, ecological and social losses in many countries throughout the world..."

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Taxonomic shortcuts lead to long delays in species discovery, delineation, and identification

"...Invasive species threaten biodiversity, ecosystem functions, and human health around the world..."

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Incorporating insurance value into ecosystem services assessments: Mitigation of ecosystem users’ welfare uncertainty thro

"...Ecosystems and underlying biodiversity frequently ensure sustained welfare by reducing the risk associated with detrimental biological agents..."

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Evaluation of machine learning algorithms for forest stand species mapping using Sentinel-2 imagery and environmental data in th

"...Information about forest stand species distribution is essential for biodiversity modelling, forest disturbances, fire hazard and drought monitoring, biomass and carbon estimation, detection of non-native and invasive species, as well as for planning forest management strategies..."

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The status of alien bamboos in South Africa

"...Although alien bamboos are naturalised at several sites, we found no large invasive stands nor evidence of widespread negative environmental impacts..."

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