| Autor: |
John D. C. Linnell, John Odden, Reidar Andersen, Henrik Brøseth, Henrik Andrén, Olof Liberg, Per Ahlqvist, Pål Moa, Tor Kvam, Peter Segerström, Krzysztof Schmidt, Włodzimierz Jędrzejewski, Henryk Okarma |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Wildlife Biology. 13:447-455 |
| ISSN: |
0909-6396 |
| Popis: |
Monitoring of lynx Lynx lynx populations in Scandinavia is largely based around unreplicated minimum counts of family groups, i.e. adult females with dependent kittens. When observations cannot be separated from each other on the basis of back-tracking in the snow it is desirable to use a distance rule to separate observations of groups that are so far apart that they are unlikely to be derived from the same group. We have analysed radio-telemetry derived movement data from five study areas, corresponding to three ecologically different regions, in Scandinavia, and included data from Poland for comparison. We derive examples of two different distance rules; one is a static rule based on home-range size and length which is suitable for observations accumulated during a whole winter, and the other is a dynamic rule suitable for observations collected within 1-7 days of each other. Because of inter-study area variation in home-range size and movement there is a need to use different rules in differe... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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