Ecological niche conservatism and diversification in a clade of New World jays from the tropical lowland forests of Mesoamerica
Por:
Castillo-Chora, VJ, Etienne, RS, Sánchez-González, LA, Mastretta-Yanes, A, Navarro-Sigüenza, AG
Publicada:
20 dic 2024
Resumen:
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.
Filiaciones:
Castillo-Chora, VJ:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Evolut, Museo Zool, Mexico City 04510, Mexico
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Mexico City, Mexico
Univ Groningen, Groningen Inst Evolutionary Life Sci, NL-9700 CC Groningen, Netherlands
Etienne, RS:
Univ Groningen, Groningen Inst Evolutionary Life Sci, NL-9700 CC Groningen, Netherlands
Sánchez-González, LA:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Evolut, Museo Zool, Mexico City 04510, Mexico
Mastretta-Yanes, A:
Univ Nacl Autonoma Mexico, Dept Ecol Biodivers, Inst Ecol, Ciudad Univ, Mexico City 04510, Mexico
Consejo Nacl Human Ciencias & Tecnol, Mexico City, Mexico
Navarro-Sigüenza, AG:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Evolut, Museo Zool, Mexico City 04510, Mexico
Univ Nacl Autonoma Mexico, Fac Ciencias, Unidad Multidisciplinaria Docencia Invest, Campus Juriquilla, Queretaro 76230, Mexico
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