| Publication Type: | Journal Article |
| Year of Publication: | 2002 |
| Authors: | Jager, J, Pechacek, P |
| Journal: | Journal of Ornithology |
| Volume: | 143 |
| Issue: | 4 |
| Date Published: | 2002 |
| ISBN Number: | 2193-7192 |
| Keywords: | Picidae, Picoides, Picoides tridactylus |
| Abstract: | We developed a statistical model to determine the minimum sample size for kernel-based home-ranges in the Three-toed Woodpecker ( Picoides tridactylus ). Between April and August 1998, 842 biologically independent observations of eight radio-tracked Three-toed Woodpeckers were made in Berchtesgaden National Park. Processing the resultant data with the telemetry-software Ranges V, we calculated individual home-ranges based on 95 % utilisation distribution for three biological periods (pre-nesting, nesting, post-nesting). We ascertained the minimum sample size for the kernel estimation developing a statistical trend model. The results showed that in the case of the Three-toed Woodpecker home-range estimations by the adaptive kernel method can be considered reliable presupposing a minimum sample size of 30 independent observations distributed evenly throughout a given period. |
| URL: | http://dx.doi.org/10.1007/BF02465596 |
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