首页|Using a species distribution model to guide <fc >NSW</fc>NSW surveys of the long‐footed potoroo ( <i >Potorous longipes</i>Potorous longipes )
Using a species distribution model to guide <fc >NSW</fc>NSW surveys of the long‐footed potoroo ( <i >Potorous longipes</i>Potorous longipes )
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NSTL
Wiley
<abstract type="main" xml:id="aec12804-abs-0001" xml:lang="en"> <title type="main">Abstract</title> <p> Knowledge of threatened species’ distributions is essential for effective conservation decision‐making. Species distribution models ( <fc>SDM</fc> s) are widely used to map species’ geographic ranges, identify new areas of suitable habitat and guide field surveys. In New South Wales ( <fc>NSW</fc> ), Australia, there are grave doubts about whether populations of the critically endangered long‐footed potoroo ( <i>Potorous longipes</i> ) remain extant, and identification of occupied sites is a high priority for its conservation. We used an <fc>SDM</fc> (Maxent) to identify regions in <fc>NSW</fc> that may have suitable habitat for the potoroo. The <fc>SDM</fc> was built with seven climate layers and had strong predictive performance (cross‐validated <fc>AUC</fc> ?=?0.94). We then combined this information on habitat suitability with vegetation and topography, to identify 58 survey sites across <fc>NSW</fc> . From April 2016 to May 2017, we undertook six field trips deploying six to eight cameras at each site for 52–63?days, resulting in 25?120 camera trap nights. A total of 215?759 images captured 43 native and feral animal species, but no long‐footed potoroos. Following the survey, newly available, independent presence and absence data were used to validate our model. A Kruskal–Wallis H test indicated that habitat suitability values were significantly higher at presence locations than absence locations ( <i>H</i> ?=?58.66, d.f.?=?1, <i>P</i> ?<?0.001). Finally, we refitted the Maxent model with the new data and identified additional regions that future surveys could explore. We conclude, however, that if the long‐footed potoroo remains extant in <fc>NSW</fc> , it is extremely rare. </p> </abstract>
conservation biologyMaxentpresence‐only modelspecies distribution modelthreatened species
Baumgartner John B.、Nipperess David A.、Wauchope‐Drumm Mareshell、Bentley Joss、Beaumont Linda J.
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Department of Biological SciencesMacquarie UniversityNorth Ryde,New South Wales,2109,Australia
Office of Environment and HeritageNew South Wales GovernmentQueanbeyan,New South Wales,Australia
NSTL
Wiley
