Laroche, Fabien
- Department of Ecology, Swedish University of Agricultural Sciences
- National research institute of science and technology for environment and agriculture (IRSTEA)
Abstract
In many fragmented habitats, the detectability of a population in a habitat patch closely depends on the local abundance of individuals. However, metapopulation studies rarely connect abundance and detectability. We propose a framework for using abundance-based estimates of detectability in the analysis of a spatially-explicit stochastic patch occupancy model (SPOM). We illustrate our approach with the example of Tenebrio opacus, a beetle inhabiting hollows in old trees, and have based it on a 6-year monitoring programme of adult beetles in an area harbouring a high density of old oaks. We validated our abundance-based methodology by showing that the estimates of detectability were positively and significantly correlated with those obtained from presence/absence data (Pearson r=0.54, p
Keywords
Occupancy; SPOM; Likelihood; Missing data; Colonization
Published in
Oecologia
2018, volume: 188, number: 3, pages: 671-682
Publisher: SPRINGER
SLU Authors
Paltto, Heidi
- Department of Ecology, Swedish University of Agricultural Sciences
- Department of Ecology, Swedish University of Agricultural Sciences
Ranius, Thomas
- Department of Ecology, Swedish University of Agricultural Sciences
- Department of Ecology, Swedish University of Agricultural Sciences
UKÄ Subject classification
Ecology
Publication identifier
- DOI: https://doi.org/10.1007/s00442-018-4220-5
Permanent link to this page (URI)
https://res.slu.se/id/publ/96996