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On Spatial Resolution in Habitat Models: Can Small-scale Forest Structure Explain Capercaillie Numbers? Ecology and Society
Storch, Ilse; Wildlife Research and Management Unit, Technical University of Munich and Max Pl; ilse.storch@t-online.de.
This paper explores the effects of spatial resolution on the performance and applicability of habitat models in wildlife management and conservation. A Habitat Suitability Index (HSI) model for the Capercaillie (Tetrao urogallus) in the Bavarian Alps, Germany, is presented. The model was exclusively built on non-spatial, small-scale variables of forest structure and without any consideration of landscape patterns. The main goal was to assess whether a HSI model developed from small-scale habitat preferences can explain differences in population abundance at larger scales. To validate the model, habitat variables and indirect sign of Capercaillie use (such as feathers or feces) were mapped in six study areas based on a total of 2901 20 m radius (for habitat...
Tipo: Peer-Reviewed Reports Palavras-chave: Bavarian Alps Capercaillie forest structure grouse habitat assessment habitat preferences habitat structure and population density Habitat Suitability Index Model population density spatial scale Tetrao urogallus wildlife– Habitat relationships.
Ano: 2002
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Geographical differences in habitat relationships of cetaceans across an ocean basin ArchiMer
Mannocci, Laura; Roberts, Jason J.; Pedersen, Eric J.; Halpin, Patrick N..
The distributions of highly mobile marine species such as cetaceans are increasingly modeled at basin scale by combining data from multiple regions. However, these basin‐wide models often overlook geographical variations in species habitat relationships between regions. We tested for geographical variations in habitat relationships for a suite of cetacean taxa between the two sides of the North Atlantic basin. Using cetacean visual survey data and remote sensing data from the western and eastern basin in summer, we related the probability of presence of twelve cetacean taxa from three guilds to seafloor depth, sea surface temperature and primary productivity. In a generalized additive model framework, we fitted 1) basin‐wide (BW) models, assuming a single...
Tipo: Text Palavras-chave: Environmental predictors; Geographical variation; Habitat relationships; Highly mobile marine species; North Atlantic Ocean; Species distribution modeling.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00630/74163/73721.pdf
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