Edge Effect on Density Estimates of a Radiotracked Population of Yellow-Necked Mice
| Autor: | Silvia Tioli, Anna Stradiotto, Annapaola Rizzoli, Francesca Cagnacci |
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| Rok vydání: | 2009 |
| Předmět: |
education.field_of_study
Ecology biology Population size Population Density estimation biology.organism_classification Population density Northern italy Apodemus General Earth and Planetary Sciences Environmental science Fagus sylvaticus Physical geography education Beech Ecology Evolution Behavior and Systematics Nature and Landscape Conservation General Environmental Science |
| Zdroj: | Journal of Wildlife Management. 73:184-190 |
| ISSN: | 1937-2817 0022-541X |
| DOI: | 10.2193/2007-324 |
| Popis: | Density estimates for small-mammal populations from capture–mark–recapture (CMR) data have played an important role in many studies of theoretical and applied ecology. Defining effective trapping area (ETA) is one of the main issues affecting accuracy of density estimates. Our objective was to assess sensitivity of CMR density estimates to correctors based on movement parameters calculated from trapping and radiotelemetry data. From May to November 2005, we conducted monthly CMR trapping in a beech (Fagus sylvaticus) forest of the province of Trento, northern Italy. In conjunction with CMR, we radiomarked 32 yellow-necked mice (Apodemus flavicollis) captured from July to October and located them daily using radiotelemetry. We estimated population size (N) by model averaging with Program MARK. We calculated ETA using several definitions of the boundary strip, including full and half mean maximum distance moved (MMDM) from capture–recapture and telemetry data and mean radius of mean monthly home ra... |
| Databáze: | OpenAIRE |
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