Imperial College London
Alternate

DrArkhatAbzhanov

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Reader in Evolution and Developmental Genetics
 
 
 
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Contact

 

a.abzhanov

 
 
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Location

 

Munro 2.15MunroSilwood Park

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Summary

 

Publications

Citation

BibTex format

@article{Reaney:2020:10.1002/ece3.6994,
author = {Reaney, AM and BouchenakKhelladi, Y and Tobias, JA and Abzhanov, A},
doi = {10.1002/ece3.6994},
journal = {Ecology and Evolution},
pages = {14020--14032},
title = {Ecological and morphological determinants of evolutionary diversification in Darwin's finches and their relatives},
url = {http://dx.doi.org/10.1002/ece3.6994},
volume = {10},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Darwin's finches are a classic example of adaptive radiation, a process by which multiple ecologically distinct species rapidly evolve from a single ancestor. Such evolutionary diversification is typically explained by adaptation to new ecological opportunities. However, the ecological diversification of Darwin's finches following their dispersal to Galápagos was not matched on the same archipelago by other lineages of colonizing land birds, which diversified very little in terms of both species number and morphology. To better understand the causes underlying the extraordinary variation in Darwin's finches, we analyze the evolutionary dynamics of speciation and trait diversification in Thraupidae, including Coerebinae (Darwin's finches and relatives) and, their closely related clade, Sporophilinae. For all traits, we observe an early pulse of speciation and morphological diversification followed by prolonged periods of slower steadystate rates of change. The primary exception is the apparent recent increase in diversification rate in Darwin's finches coupled with highly variable beak morphology, a potential key factor explaining this adaptive radiation. Our observations illustrate how the exploitation of ecological opportunity by contrasting means can produce clades with similarly high diversification rate yet strikingly different degrees of ecological and morphological differentiation.
AU  - Reaney,AM
AU  - BouchenakKhelladi,Y
AU  - Tobias,JA
AU  - Abzhanov,A
DO  - 10.1002/ece3.6994
EP  - 14032
PY  - 2020///
SN  - 2045-7758
SP  - 14020
TI  - Ecological and morphological determinants of evolutionary diversification in Darwin's finches and their relatives
T2  - Ecology and Evolution
UR  - http://dx.doi.org/10.1002/ece3.6994
UR  - https://onlinelibrary.wiley.com/doi/10.1002/ece3.6994
UR  - http://hdl.handle.net/10044/1/84774
VL  - 10
ER  -
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