International Association
for Open Knowledge
on Invasive Alien Species
September 2021 issue of Management of Biological Invasions is now online!

In this issue...

Urban areas are hotspots for invasions but also provide unique opportunities for early detection. The Invader Detectives project – piloted in Washington DC - uses data collected by citizen scientists to support early detection of invasive species in metropolitans.

The American charru mussel (Mytella strigata) is an invasive species of great concern along the shores of North America and Asia. This study found that environmental DNA detection was effective in identifying the presence and distribution of the species across different habitats

Parthenium poses a serious environmental and socio-economic threat in Pakistan. Researchers from CABI, University of Córdoba and the National Agricultural Research Centre wrote a comprehensive review of the status quo and future prospects of using biocontrol on Parthenium in Pakistan.

This study reviewed different options to control killer shrimp (Dikerogammarus villosus) and other invasive amphipods, concluding that a lack of available tested techniques severely limits the possibility for amphipod management after establishment.

What can we learn from failed eradication attempts? This study investigated food preferences of Polynesian rats from Wake Island and found differences between rats captured in inhabited and remote areas.

Common myna (Acridotheres tristis) eradications on some small islands helps protect endemic and indigenous fauna in the Seychelles. A two-phase eradication project at a combined costs of US$ 135,600 was successful in removing 1641 birds over 7 years – using trapping and shooting.

The African clawed frog (Xenopus laevis) is a global amphibian invader. This study investigated the effects of luring, call playbacks and moonlight on the capture rate of these frogs.

Finnish researchers tested the effect of LED lights on signal crayfish trapping in lakes. They found that the use of white and green lights does not increase the effectiveness of signal crayfish trapping.

Transport of potentially invasive species on ships’ submerged surfaces can be hard to detect. This study provides a model for easy, quick, and cost-effective classification of biofouling.

Mitigating non-native species movements: effects of pressure-washing on the removal of biofouling and mobile invertebrates from cultured Pacific oysters Crassostrea gigas.

Researchers from Jordan and Saudi Arabia discovered that the current distribution and spread of the common myna in Jordan is driven by people rather than climate.

Yes, we CANZ? An assessment of the initial compliance and lessons learned from regulating vessel biofouling management in California and New Zealand highlights the need for targeted outreach to the various stakeholder groups.

A tale of policy effectiveness: Researchers from the US Fish and Wildlife Service and USGS applaud the unsung success of injurious wildlife listing under the Lacey Act.

Some Great Lakes regions regulate more than 100 species, others fewer than 20. This study applied a risk assessment framework to assess a suite of regulated and unregulated organisms, with emphasis on live trade pathways.

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