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How bird clades div...
How bird clades diversify in response to climatic and geographic factors
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- Rodriguez-Castaneda, Genoveva (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Univ Texas Austin, Sect Integrat Biol, 205 W 24th St, Austin, TX 78712 USA
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- Hof, Anouschka (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies,Wageningen University
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- Jansson, Roland (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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(creator_code:org_t)
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- 2017-07-13
- 2017
- English.
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In: Ecology Letters. - : WILEY. - 1461-023X .- 1461-0248. ; 20:9, s. 1129-1139
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- While the environmental correlates of global patterns in standing species richness are well understood, it is poorly known which environmental factors promote diversification (speciation minus extinction) in clades. We tested several hypotheses for how geographic and climatic variables should affect diversification using a large dataset of bird sister genera endemic to the New World. We found support for the area, evolutionary speed, environmental predictability and climatic stability hypotheses, but productivity and topographic complexity were rejected as explanations. Genera that had accumulated more species tend to occupy wider niche space, manifested both as occurrence over wider areas and in more habitats. Genera with geographic ranges that have remained more stable in response to glacial-interglacial changes in climate were also more species rich. Since many relevant explanatory variables vary latitudinally, it is crucial to control for latitude when testing alternative mechanistic explanations for geographic variation in diversification among clades.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Keyword
- Climate stability
- ecological niche modelling
- energy availability
- geographic area
- habitat diversity
- phylogenetic independent contrasts
- sister group comparisons
- species richness
- temperate
- tropical
Publication and Content Type
- ref (subject category)
- art (subject category)
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