Highly divergent sympatric lineages of Leptotila verreauxi (Aves: Columbidae) suggest a secondary contact area in the Isthmus of Tehuantepec, Mexico

Espinosa-Chávez, Orlando J.; Navarro-Sigüenza, Adolfo G.; Rodríguez-Correa, Hernando; Sánchez-González, Luis A.

doi:10.1016/j.avrs.2024.100160

Avian Research

2024

DOI: 10.1016/j.avrs.2024.100160

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Highly divergent sympatric lineages of Leptotila verreauxi (Aves: Columbidae) suggest a secondary contact area in the Isthmus of Tehuantepec, Mexico

Orlando J. Espinosa-Chávez,

Adolfo G. Navarro-Sigüenza,

Hernando Rodríguez-Correa

et al.

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2024

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Cited by 2 publications

References 85 publications

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Climatic niche shifts and ecological sky‐island dynamics in Mesoamerican montane birds

Rocha‐Méndez,

Prieto‐Torres,

Sánchez‐González

et al. 2024

Ecology and Evolution

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An ongoing challenge in evolutionary and ecological research focuses on testing biogeographic hypotheses for the understanding of both species' distributional patterns and of the factors influencing range limits. In this study, we described the climatic niches of Neotropical humid montane forest birds through the analysis of factors driving their evolution at inter‐ and intraspecific levels; and tested for differences among allopatric lineages within Aulacorhynchus, Chlorospingus, Cardellina, and Eupherusa. We employed ecological niche models (ENMs) along with an ordination approach with kernel smoothing to perform niche overlap analyses and test hypotheses of niche equivalence/similarity among lineages. In addition, we described the potential distributions of each lineage during the Late Pleistocene climate fluctuations, identifying historical range expansions, connectivity, and stability. Overall, we observed differences in environmental variables influencing climatic requirements and distributional patterns for our selected species. We detected the highest values of niche overlap mainly between Eupherusa and some Chlorospingus lineages. At both interspecific and intraspecific levels, sister lineages showed non‐identical environmental niches. Our results offer weak support to a moist forest model, in which populations followed the expansion and contraction cycles of montane forests, leading to a lack of niche conservatism among lineages (they tend to occupy not identical climatic environments) throughout Mesoamerica. Therefore, historical climatic conditions may act as ecological barriers determining the distributional ranges of these species.

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Climatic niche shifts and ecological sky‐island dynamics in Mesoamerican montane birds

Rocha‐Méndez,

Prieto‐Torres,

Sánchez‐González

et al. 2024

Ecology and Evolution

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Ecological niche conservatism and diversification in a clade of New World jays from the tropical lowland forests of Mesoamerica

Castillo-Chora,

Etienne,

Sánchez-González

et al. 2024

Biological Journal of the Linnean Society

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Here, we aimed to assess the role of historical (climate events) and the current geographical and ecological features in the evolutionary history of a clade of New World jays. Using an ellipsoid-based approach relying on environmental climatic layers and occurrence data, we tested whether closely related taxa in the clade Cyanocorax colliei + C. formosus + C. morio occupy ecologically different environmental spaces throughout their mostly allopatric distribution in a semihomogeneous landscape, and whether they have been influenced by similar processes given the geographical and ecological context of the Mesoamerican lowland tropical forests. We reconstructed palaeo-distributions to assess the effects of climate shifts on their current patterns of distribution. Additionally, we assess the importance of areas that could function as environmental barriers between taxa. Our results at the species level show evidence for niche divergence for two of the three species pairs. Geographical transferences (areas of suitability inferred by the model) seem to have good explanatory power for current subspecies distribution and variation. At the subspecies level, we find no evidence for niche divergence; the observed parapatric and allopatric distributions seem instead associated with historical environmental differences and ecological barriers limiting the connection between populations with similar niche requirements.

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Highly divergent sympatric lineages of Leptotila verreauxi (Aves: Columbidae) suggest a secondary contact area in the Isthmus of Tehuantepec, Mexico

Cited by 2 publications

References 85 publications

Climatic niche shifts and ecological sky‐island dynamics in Mesoamerican montane birds

Climatic niche shifts and ecological sky‐island dynamics in Mesoamerican montane birds

Ecological niche conservatism and diversification in a clade of New World jays from the tropical lowland forests of Mesoamerica

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