Identifying habitat suitability for hazel grouse Bonasa bonasia at the landscape scale

Autor: Niklaus E. Zimmermann, Niklaus Zbinden, Werner Suter, Lukas Mathys
Rok vydání: 2006
Předmět:
Zdroj: Wildlife Biology. 12:357-366
ISSN: 0909-6396
DOI: 10.2981/0909-6396(2006)12[357:ihsfhg]2.0.co;2
Popis: The hazel grouse Bonasa bonasia is declining in many areas within its European distribution, particularly in managed forests. Adequate habitat management may thus be crucial for the regional survival of the species. So far management activities have tended to focus on the local scale. However, for the sustainable management of the hazel grouse and its habitat, the landscape scale also needs to be considered. We therefore evaluated whether habitat suitability for hazel grouse can be quickly, but adequately, modelled at the landscape scale with information obtained from aerial photographs. We mapped hazel grouse records in a forested area typical of large tracts of the Swiss Jura mountain range, and extracted data on habitat composition from infrared aerial photographs applying a bird-centred sampling approach. We then used the hazel grouse records together with an equal-sized data set of non-grouse plots to build predictive habitat suitability models using a generalised linear model (GLM) and a cl...
Databáze: OpenAIRE