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Multi‐level movement response of invasive wild pigs ( Sus scrofa ) to removalAuthor(s): Guillaume Bastille‐Rousseau; Peter Schlichting; David Keiter; Joshua Smith; John Kilgo; George Wittemyer; Kurt Vercauteren; James Beasley; Kim M. Pepin
Source: Pest Management Science
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
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DescriptionBACKGROUND: Lethal removal of invasive species, such aswild pigs (Sus scrofa), is often the most efficient approach for reducing their negative impacts. Wild pigs are one of the most widespread and destructive invasive mammals in the USA. Lethal management techniques are a key approach for wild pigs and can alter wild pig spatial behavior, but it is unclear how wild pigs respond to the most common removal technique, trapping.We investigated the spatial behavior of wild pigs following intensive removal of conspecifics via trapping at three sites within the Savannah River Site, SC, USA. We evaluated changes in wild pig densities, estimated temporal shifts in home-range properties, and evaluated fine-scale movement responses of wild pigs to removal. RESULTS: We observed a significant reduction in the density of wild pigs in one site following removal via trapping while a qualitative reduction was observed in another site. We found little evidence of shifts in pig home-ranging behavior following removal. However, we did observe a nuanced response in movement behavior of wild pigs to the removal at the scale of the GPS locations (4 h), including increased movement speed and reduced selection for vegetation rich areas. CONCLUSION: Ourwork provides a better understanding of the impact of removal via trapping onwild pigmovement and its implications for management. The lack of shift in home-range characteristics observed illustrates howtargeted trapping could be used to provide temporary relief for species sensitive to wild pig consumption such as ground nesting birds or agricultural crops. © 2020 Society of Chemical Industry
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CitationBastille‐Rousseau, Guillaume; Schlichting, Peter E; Keiter, David A; Smith, Joshua B; Kilgo, John C; Wittemyer, George; Vercauteren, Kurt C; Beasley, James C; Pepin, Kim M. 2020. Multi‐level movement response of invasive wild pigs ( Sus scrofa ) to removal . Pest Management Science. 5: https://doi.org/10.1002/ps.6029.
Keywordsanimal movement, GPS telemetry, step-selection functions (SSF), spatially-explicit-capture-recapture (SECR), swine, wild boar
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