Home range and resource selection by animals constrained by linear habitat features: an example of Blakiston's fish owl
Article first published online: 19 AUG 2013
© 2013 The Authors. Journal of Applied Ecology © 2013 British Ecological Society
Journal of Applied Ecology
Volume 50, Issue 6, pages 1350–1357, December 2013
How to Cite
Slaght, J. C., Horne, J. S., Surmach, S. G., Gutiérrez, R.J. (2013), Home range and resource selection by animals constrained by linear habitat features: an example of Blakiston's fish owl. Journal of Applied Ecology, 50: 1350–1357. doi: 10.1111/1365-2664.12143
- Issue published online: 15 NOV 2013
- Article first published online: 19 AUG 2013
- Accepted manuscript online: 1 JUL 2013 09:37PM EST
- Manuscript Accepted: 26 JUN 2013
- Manuscript Received: 10 MAR 2013
- Wildlife Conservation Society Russia program. Grant Numbers: 06-DG-11132726-215, 07-DG-11132792-153
- National Aviary
- University of Minnesota (UMN)
- Minnesota Agriculture Experiment Station
- UMN Doctoral Dissertation Fellowship
- Gordon Gullion Scholarship
- Leigh H. Perkins Fellowship
- United States Forest Service International Programs
- Amur-Ussuri Centre for Avian Diversity
- Disney Worldwide Conservation Fund
- National Birds of Prey Trust, Bell Museum of Natural History
- Columbus Zoo
- Denver Zoo
- Institute of Biology and Soil Sciences (Russian Academy of Sciences Far Eastern Branch)
- Minnesota Zoo
- Bubo blakistoni ;
- habitat use;
- kernel density;
- Russian Far East;
- synoptic model of space use
Typically in resource selection studies, the spatial extent of a home range is defined first and then the available resources within that perimeter are estimated. However, the home ranges (or habitats) of some animals are constrained by linear environmental features (e.g. rivers, shorelines). Traditional home range estimators often overestimate home range extent for such species, which can lead to spurious estimation of resource availability and selection.
We used a synoptic model of space use to explicitly account for resource selection of a species constrained by linear features in its environment to compare with traditional home range estimators. We used the endangered Blakiston's fish owl Bubo blakistoni in the Russian Far East as our example.
Mean annual home range size (± standard error) was more than three times larger when using kernel methods (30·3 ± 15·1 km2) than when using the synoptic model (9·4 ± 2·0 km2, n = 7).
Fish owls showed strong selection for areas within valleys, closer to waterways, closer to patches of permanently open water and with greater channel complexity than available sites.
Synthesis and applications. The synoptic model solves a long-standing problem in home range and resource selection studies because it provides an objective way to estimate the space use of a species whose habitat is constrained by linear features in its environment. Improvements in the accuracy of such estimations can lead to identification of important resources across landscapes, the development of more rigorous site-specific or landscape-scale management plans, and to scientifically defensible conservation or threat mitigation measures.