A landscape-scale model of yellow-billed loon (Gavia adamsii) habitat preferences in northern Alaska

Issue Title: Theme: Limnology and Aquatic Birds: Proceedings of the Fourth Conference Working Group on Aquatic Birds of Societas Internationalis Limnologiae (SIL), Sackville, New Brunswick, Canada, August 3-7, 2003 We modeled yellow-billed loon (Gavia adamsii) habitat preferences in a 23,500 km^sup...

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Bibliographic Details
Published in:Hydrobiologia 2006-09, Vol.567 (1), p.227-236
Main Authors: EARNST, Susan L, PLATTE, Robert, BOND, Laura
Format: Article
Language:English
Subjects:
Aerial surveys
Animal and plant ecology
Animal, plant and microbial ecology
Aquatic birds
Aquatic plants
Aves
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
General aspects
Habitat preferences
Habitats
Lakes
Landscape
Limnology
Nesting
Shorelines
Streams
Synecology
Vegetation
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Water depth
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Summary:Issue Title: Theme: Limnology and Aquatic Birds: Proceedings of the Fourth Conference Working Group on Aquatic Birds of Societas Internationalis Limnologiae (SIL), Sackville, New Brunswick, Canada, August 3-7, 2003 We modeled yellow-billed loon (Gavia adamsii) habitat preferences in a 23,500 km^sup 2^ area of northern Alaska using intensive aerial surveys and landscape-scale habitat descriptors. Of the 757 lakes censused, yellow-billed loons occupied 15% and Pacific loons (G. pacifica) 42%. Lake area, depth, proportion of shoreline in aquatic vegetation, shoreline complexity, hydrological connectivity (stream present within 100 m or absent), and an area-connectivity interaction were positive, significant predictors of yellow-billed loon presence in a multivariate logistic regression model, but distance to nearest river or Beaufort Sea coast were not. Predicted yellow-billed loon presence was 13 and 4.7 times more likely on deep and medium lakes, respectively, than on shallow lakes that freeze to the bottom. On small lakes (
ISSN:0018-8158
1573-5117
DOI:10.1007/s10750-006-0042-2