ArticleNature communications2023
Allometry reveals trade-offs between Bergmann's and Allen's rules, and different avian adaptive strategies for thermoregulation.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Community-Level Phenotypic Adaptations of Small Mammals Under Rain-Shadow Dynamics in Baima Snow Mountain, Yunnan.Animals : an open access journal from MDPI · 2025Article
- 8,000 years of wild and domestic animal body size data reveal long-term synchrony and recent divergence due to intensified human impact.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Threat reduction must be coupled with targeted recovery programmes to conserve global bird diversity.Nature ecology & evolution · 2025Article
- Limited evidence that body size shrinking and shape-shifting alleviate thermoregulatory pressures in a warmer world.Communications biology · 2025Article
- Shrinking body size under climate warming is not associated with selection for smaller individuals in a migratory bird.The Journal of animal ecology · 2025Article
- Global warming and obesity: External heat exposure as a modulator of energy balance.FASEB bioAdvances · 2025Review
- Global latitudinal gradients and the evolution of body size in dinosaurs and mammals.Nature communications · 2024Article
- Discrimination of cryptic species: Tabanus triangulum and Tabanus occidentalis (Diptera: Tabanidae) differ in size and shape.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024Article
- Ecological predictors of interspecific variation in bird bill and leg lengths on a global scale.Proceedings. Biological sciences · 2023Article
- Complementarity in Allen's and Bergmann's rules among birds.Nature communications · 2023Article
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4 authors.
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Abstract
Animals tend to decrease in body size (Bergmann's rule) and elongate appendages (Allen's rule) in warm climates. However, it is unknown whether these patterns depend on each other or constitute independent responses to the thermal environment. Here, based on a global phylogenetic comparative analysis across 99.7% of the world's bird species, we show that the way in which the relative length of unfeathered appendages co-varies with temperature depends on body size and vice versa. First, the larger the body, the greater the increase in beak length with temperature. Second, the temperature-based increase in tarsus length is apparent only in larger birds, whereas in smaller birds, tarsus length decreases with temperature. Third, body size and the length of beak and tarsus interact with each other to predict the species' environmental temperature. These findings suggest that the animals' body size and shape are products of an evolutionary compromise that reflects distinct alternative thermoregulatory adaptations.
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