Spatial Population Structure of Yellowstone Bison
| Autor: | Edward M. Olexa, Peter J. P. Gogan |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
education.field_of_study
Seasonal distribution Ecology National park Agglomerative hierarchical cluster Population structure Population Metapopulation Bison bison Geography symbols General Earth and Planetary Sciences symbols.heraldic_charge education Ecology Evolution Behavior and Systematics Nature and Landscape Conservation General Environmental Science |
| Zdroj: | Journal of Wildlife Management. 71:1531-1538 |
| ISSN: | 1937-2817 0022-541X |
| DOI: | 10.2193/2005-735 |
| Popis: | Increases in Yellowstone National Park, USA, bison (Bison bison) numbers and shifts in seasonal distribution have resulted in more frequent movements of bison beyond park boundaries and development of an interagency management plan for the Yellowstone bison population. Implementation of the plan under the adaptive management paradigm requires an understanding of the spatial and temporal structure of the population. We used polythetic agglomerative hierarchical cluster analysis of radiolocations obtained from free-ranging bison to investigate seasonal movements and aggregations. We classified radiolocations into 4 periods: annual, peak rut (15 Jul–15 Sep), extended rut (1 Jun–31 Oct), and winter (1 Nov–31 May). We documented spatial separation of Yellowstone bison into 2 segments, the northern and central herds, during all periods. The estimated year-round exchange rate (4.85–5.83%) of instrumented bison varied with the fusion strategy employed. We did not observe exchange between the 2 segments d... |
| Databáze: | OpenAIRE |
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