Effects of landscape composition and configuration on northern flying squirrels in a forest mosaic |
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| Authors: | L.E. Ritchie M.G. Betts G. Forbes K. Vernes |
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| Affiliation: | 1. Department of Biology, University of New Brunswick, Fredericton, NB E3B 6E1, Canada;2. Department of Forest Ecosystems and Society, College of Forestry, Oregon State University, 321 Richardson Hall, Corvallis, OR 97331, USA;3. Faculty of Forestry & Environmental Management, University of New Brunswick, Fredericton, NB E3B 6C2, Canada;4. Ecosystem Management, The University of New England, Armidale, NSW 2351, Australia |
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| Abstract: | Habitat loss and sometimes habitat fragmentation per se affect species survival, reproduction, dispersal, abundance and distribution. However, understanding the independent effects of fragmentation (i.e., landscape configuration) has been limited because it is frequently confounded with landscape composition (i.e., habitat amount). We assess the independent effects of landscape composition and configuration on the occurrence of northern flying squirrels (Glaucomys sabrinus) in New Brunswick, Canada after controlling for local site conditions. We measured landscape structure using an “organism-based” approach; landscape structure was characterized quantitatively using a spatially explicit local-scale distribution model for northern flying squirrels. |
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| Keywords: | Landscape structure Habitat loss Fragmentation Acadian forest Spatial modelling Scale Glaucomys sabrinus |
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