Social selection parapatry in an Afrotropical sunbird

Simple item page
dc.contributor.authorMcEntee, Jay P.
dc.contributor.authorPeñalba, Joshua V.
dc.contributor.authorWerema, Chacha
dc.contributor.authorMulungu, Elia
dc.contributor.authorMbilinyi, Maneno
dc.contributor.authorMoyer, David
dc.contributor.authorHansen, Louis A.
dc.contributor.authorFjeldså, Jon
dc.contributor.authorBowie, Rauri C. K.
dc.date.accessioned2016-07-14T20:46:59Z
dc.date.available2016-07-14T20:46:59Z
dc.date.issued2016-05
dc.description.abstractThe extent of range overlap of incipient and recent species depends on the type and magnitude of phenotypic divergence that separates them, and the consequences of phenotypic divergence on their interactions. Signal divergence by social selection likely initiates many speciation events, but may yield niche-conserved lineages predisposed to limit each others' ranges via ecological competition. Here we examine this neglected aspect of social selection speciation theory in relation to the discovery of a non-ecotonal species border between sunbirds. We find that Nectarinia moreaui and N. fuelleborni meet in a ∼6 km wide contact zone, as estimated by molecular cline analysis. These species exploit similar bioclimatic niches, but sing highly divergent learned songs, consistent with divergence by social selection. Cline analyses suggest that within-species stabilizing social selection on song-learning predispositions maintains species differences in song despite both hybridization and cultural transmission. We conclude that ecological competition between moreaui and fuelleborni contributes to the stabilization of the species border, but that ecological competition acts in conjunction with reproductive interference. The evolutionary maintenance of learned song differences in a hybrid zone recommend this study system for future studies on the mechanisms of learned song divergence and its role in speciation. This article is protected by copyright. All rights reserved.en_US
dc.identifier.citationMcEntee, J.P., Peñalba, J.V., Werema, C., Mulungu, E., Mbilinyi, M., Moyer, D., Hansen, L., Fjeldsaa, J. and Bowie, R.C., 2016. Social selection parapatry in Afrotropical sunbirds. Evolution.en_US
dc.identifier.doi10.1111/evo.12950
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3190
dc.language.isoenen_US
dc.publisherWileyen_US
dc.subjectHybrid zoneen_US
dc.subjectBird songen_US
dc.subjectClineen_US
dc.subjectSpecies bordersen_US
dc.subjectHZARen_US
dc.subjectSexual selectionen_US
dc.titleSocial selection parapatry in an Afrotropical sunbirden_US
dc.typeJournal Article, Peer Revieweden_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Social selection parapatry in an Afrotropical sunbird.pdf
Size:
12.64 MB
Format:
Adobe Portable Document Format
Description:
Full text
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Department of Zoology and Wildlife Conservation