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

Autor: Rocha-Méndez A; Museo de Zoología, Facultad de Ciencias Universidad Nacional Autónoma de México Mexico City Mexico.; Posgrado en Ciencias Biológicas Universidad Nacional Autónoma de México Mexico City Mexico.; Present address: Evolutionary Adaptive Genomics, Institute for Biochemistry and Biology, Faculty of Mathematics and Natural Sciences University of Potsdam Potsdam Germany., Prieto-Torres DA; Laboratorio de Biodiversidad y Cambio Global (LABIOCG), Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México Tlalnepantla Estado de México Mexico., Sánchez-González LA; Museo de Zoología, Facultad de Ciencias Universidad Nacional Autónoma de México Mexico City Mexico., Navarro-Sigüenza AG; Museo de Zoología, Facultad de Ciencias Universidad Nacional Autónoma de México Mexico City Mexico.; Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Campus Juriquilla Universidad Nacional Autónoma de México Querétaro Mexico.
Jazyk: angličtina
Zdroj: Ecology and evolution [Ecol Evol] 2024 Sep 04; Vol. 14 (9), pp. e70236. Date of Electronic Publication: 2024 Sep 04 (Print Publication: 2024).
DOI: 10.1002/ece3.70236
Abstrakt: 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.
Competing Interests: The authors declare no conflict of interest.
(© 2024 The Author(s). Ecology and Evolution published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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