Landscape complexity persists as a critical source of bias in terrestrial animal home range estimation.

Ecology
David R HeitRobert A Montgomery

Abstract

Home ranges provide a conceptual and quantitative representation of animal-habitat associations over time. Methods to estimate home ranges have swiftly progressed by dynamically accounting for various sources of bias. Across that period of growth, one potentially influential source of bias has yet to be robustly scrutinized. Animals inhabiting the terrestrial spatial domain make movement decisions in environments with variable landscape complexity. Despite that reality, home range estimation methods tend to be informed by two-dimensional (2D) data (i.e., x and y coordinates), which analytically presume that these landscapes are flat. This analytical tendency potentially misrepresents the configuration and size of animal home range estimates. To examine the prevalence of this bias, we reviewed literature of terrestrial animal home range estimation published between 2000 and 2019. We recorded the proportion of studies that (1) recognized and (2) incorporated landscape complexity. Over 22.0% (n = 271) of the 1,203 studies recognized the importance of landscape complexity for animal movement. Interestingly, just 0.7% (n = 8) incorporated landscape complexity into the home range estimation. We infer then that landscape complexity re...Continue Reading

References

Jun 23, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Francesca CagnacciMark S Boyce
Jun 23, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·John G KiePaul R Moorcroft
Apr 10, 2013·Conservation Biology : the Journal of the Society for Conservation Biology·Edward T GameHugh P Possingham
Apr 12, 2013·The Journal of Animal Ecology·Mevin B HootenMat W Alldredge
Aug 7, 2013·Ecology and Evolution·Pedro MonterrosoPaulo Célio Alves
Dec 3, 2014·Trends in Ecology & Evolution·Andrew B Davies, Gregory P Asner

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