Convergent evolution, habitat shifts and variable diversification rates in the ovenbird-woodcreeper family (Furnariidae) |
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Authors: | Martin Irestedt Jon Fjelds? Love Dalén Per GP Ericson |
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Affiliation: | (1) Molecular Systematics Laboratory, Swedish Museum of Natural History, 50007, SE-10405 Stockholm, Sweden;(2) Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-2100 Copenhagen, Denmark;(3) Department of Vertebrate Zoology, Swedish Museum of Natural History, 50007, SE-10405 Stockholm, Sweden |
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Abstract: | Background The Neotropical ovenbird-woodcreeper family (Furnariidae) is an avian group characterized by exceptionally diverse ecomorphological adaptations. For instance, members of the family are known to construct nests of a remarkable variety. This offers a unique opportunity to examine whether changes in nest design, accompanied by expansions into new habitats, facilitates diversification. We present a multi-gene phylogeny and age estimates for the ovenbird-woodcreeper family and use these results to estimate the degree of convergent evolution in both phenotype and habitat utilisation. Furthermore, we discuss whether variation in species richness among ovenbird clades could be explained by differences in clade-specific diversification rates, and whether these rates differ among lineages with different nesting habits. In addition, the systematic positions of some enigmatic ovenbird taxa and the postulated monophyly of some species-rich genera are evaluated. |
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