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Australian songbird body size tracks climate variation: 82 species over 50 years

Gardner, Janet; Amano, Tatsuya; Peters, Anne; Sutherland, William J; Mackey, Brendan; Joseph, Leo; Stein, John; Stagoll, Karen; Little, Roellen; Smith, Jesse; Symonds, Matthew


The observed variation in the body size responses of endotherms to climate change may be explained by two hypotheses: the size increases with climate variability (the starvation resistance hypothesis) and the size shrinks as mean temperatures rise (the heat exchange hypothesis). Across 82 Australian passerine species over 50 years, shrinking was associated with annual mean temperature rise exceeding 0.012°C driven by rising winter temperatures for arid and temperate zone species. We...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Proceedings of the Royal Society of London Series B: Biological Sciences
DOI: 10.1098/rspb.2019.2258
Access Rights: Open Access


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