Biological Invasions
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Published By Springer-Verlag

1573-1464, 1387-3547
Updated Friday, 21 January 2022

Author(s):  
Gail V. Ashton ◽  
Chela J. Zabin ◽  
Ian C. Davidson ◽  
Gregory M. Ruiz

Author(s):  
Diogo Freitas-Souza ◽  
André Batista Nobile ◽  
Fernanda Dotti do Prado ◽  
Érica Alves Serrano ◽  
Felipe Pontieri Lima ◽  
...  

Author(s):  
Melina Kourantidou ◽  
Phillip J. Haubrock ◽  
Ross N. Cuthbert ◽  
Thomas W. Bodey ◽  
Bernd Lenzner ◽  
...  

Author(s):  
Chiara Montagnani ◽  
Gabriele Casazza ◽  
Rodolfo Gentili ◽  
Sarah Caronni ◽  
Sandra Citterio

Author(s):  
Peter J. Kappes ◽  
Shane R. Siers ◽  
Israel L. Leinbach ◽  
Robert T. Sugihara ◽  
Wesley J. Jolley ◽  
...  

AbstractInvasive mice (Mus spp.) can negatively impact island species and ecosystems. Because fewer island rodent eradications have been attempted for mice compared to rats (Rattus spp.), less is known about efficacy and palatability of rodenticide baits for mouse eradications. We performed a series of bait acceptance and efficacy cage trials using a standard formulation of brodifacoum-based rodenticide on wild-caught mice from Sand Island, Midway Atoll, to help inform a proposed eradication there. Mice were offered ad libitum brodifacoum pellets along with various alternative food sources, and a “no choice” treatment group received only bait pellets. Mortality in the no choice trial was 100%; however, when offered alternative foods, mice preferred the alternative diets to the bait, leading to low mortality (40%). Because there was concern that the bittering agent Bitrex® in the formulation may have reduced palatability, we conducted a subsequent trial comparing brodifacoum bait with and without Bitrex. Mortality in the with-Bitrex treatment group was slightly higher, indicating that the bittering agent was not likely responsible for low efficacy. Laboratory trials cannot account for the numerous environmental and behavioral factors that influence bait acceptance nor replicate the true availability of alternative food sources in the environment, so low efficacy results from these trials should be interpreted cautiously and not necessarily as a measure of the likelihood of success or failure of a proposed eradication.


Author(s):  
Tobias Schwoerer ◽  
Roman J. Dial ◽  
Joseph M. Little ◽  
Aaron E. Martin ◽  
John M. Morton ◽  
...  

AbstractAircraft can transport aquatic invasive species (AIS) from urban sources to remote waterbodies, yet little is known about this long-distance pathway. In North America and especially Alaska, aircraft with landing gear for water called floatplanes are used for recreation access to remote, often road-less wilderness destinations. Human-mediated dispersal of AIS is particularly concerning for the conservation of pristine wildlands, yet resource managers are often challenged by limited monitoring and response capacity given the vast areas they manage. We collected pathway data through a survey with floatplane pilots and used a Bayesian hierarchical model to inform early detection in a data-limited situation. The study was motivated by Alaska’s first known AIS, Elodea spp. (Elodea) and its floatplane-related dispersal. For 682 identified floatplane destinations, a Bayesian hierarchical model predicts the chance of flights originating from AIS source locations in freshwater and estimates the expected number of flights from these sources. Model predictions show the potential for broad spread across remote regions currently not known to have Elodea and informed monitoring and early detection efforts. Our result underlines the small window of opportunity for Arctic conservation strategies targeting an AIS free Arctic. We recommend management that focuses on long-distance connectivity, keeping urban sources free of AIS. We discuss applicability of the approach for other data-limited situations supporting data-informed AIS management responses.


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