Density-habitat relationships of white-tailed deer (Odocoileus virginianus) in Finland
Data files
May 02, 2023 version files 142.01 KB
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coords_CamerasAndClusters_2017_280518_copy.txt
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coords_CamerasAndClusters_modcluster25_280518_copy.txt
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Identification_L16_copy_revised.xlsx
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Identification_L17_copy_revised.xlsx
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README.md
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Samples2016Loimaa_copy_revised.xlsx
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Samples2017Loimaa_copy_revised.xlsx
Abstract
In heterogeneous landscapes, resource selection constitutes a crucial link between landscape and population-level processes such as density. We conducted a non-invasive genetic study of white-tailed deer in southern Finland in 2016 and 2017 using fecal DNA samples to understand factors influencing white-tailed deer density and space use in late summer prior to the hunting season. We estimated deer density as a function of landcover types using a spatial capture-recapture (SCR) model with individual identities established using microsatellite markers. The study revealed second-order habitat selection with highest deer densities in fields and mixed forest, and third-order habitat selection (detection probability) for transitional woodlands (clear-cuts) and closeness to fields. Including landscape heterogeneity improved model fit and increased inferred total density compared with models assuming a homogenous landscape. Our findings underline the importance of including habitat covariates when estimating density and exemplifies that resource selection can be studied using non-invasive methods.