The formation of avian montane diversity across barriers and along elevational gradients

0551568 - BC 2023 RIV GB eng J - Journal Article
Pujolar, J. M. - Blom, M. P. K. - Reeve, A. H. - Kennedy, J. D. - Marki, P. Z. - Korneliussen, T. S. - Freeman, B. G. - Sam, Kateřina - Linck, E. - Haryoko, T. - Iova, B. - Koane, B. - Maiah, G. - Paul, L. - Irestedt, M. - Jonsson, K. A.
The formation of avian montane diversity across barriers and along elevational gradients.
Nature Communications. Roč. 13, č. 1 (2022), č. článku 268. E-ISSN 2041-1723
EU Projects: European Commission(XE) 805189 - BABE
Institutional support: RVO:60077344
Keywords : Mt. Wilhelm * speciation * phylogeny
OECD category: Ornithology
Impact factor: 16.6, year: 2022
Method of publishing: Open access
https://www.nature.com/articles/s41467-021-27858-5.pdf

Tropical mountains harbor exceptional concentrations of Earth’s biodiversity. In topographically complex landscapes, montane species typically inhabit multiple mountainous regions, but are absent in intervening lowland environments. Here we report a comparative analysis of genome-wide DNA polymorphism data for population pairs from eighteen Indo-Pacific bird species from the Moluccan islands of Buru and Seram and from across the island of New Guinea. We test how barrier strength and relative elevational distribution predict population differentiation, rates of historical gene flow, and changes in effective population sizes through time. We find population differentiation to be consistently and positively correlated with barrier strength and a species’ altitudinal floor. Additionally, we find that Pleistocene climate oscillations have had a dramatic influence on the demographics of all species but were most pronounced in regions of smaller geographic area. Surprisingly, even the most divergent taxon pairs at the highest elevations experience gene flow across barriers, implying that dispersal between montane regions is important for the formation of montane assemblages.
Permanent Link: https://hdl.handle.net/11104/0338411