Biogeography and diversification of bare‐eyes, an endemic Amazonian clade. (21st April 2022)
- Record Type:
- Journal Article
- Title:
- Biogeography and diversification of bare‐eyes, an endemic Amazonian clade. (21st April 2022)
- Main Title:
- Biogeography and diversification of bare‐eyes, an endemic Amazonian clade
- Authors:
- Carneiro, Lincoln
Burlamaqui, Tibério C. T.
Aleixo, Alexandre
Oren, David C.
Silva, José Maria Cardoso Da - Abstract:
- Abstract: Aim: Biotic interchange, speciation and extinction processes drive biotas assembling. However, the evolutionary outcomes of those mechanisms are complex and difficult to discriminate. Here, we investigate how these processes affect avian diversification in tropical forest regions and test the relative roles of vicariant speciation and biotic interchange on the assemblage of Amazonian biota through the reconstruction of the biogeographical history of bare‐eyes using molecular markers. Location: Amazon. Taxon: Phlegopsis (Aves: Thamnophilidae). Methods: We carried out a phylogenetic reconstruction of Phlegopsis based on four mtDNA and nuclear markers of 52 individuals from 21 localities representing all recognized taxa in the genus. We estimated phylogenetic relationships using both gene tree and species tree methods, demographic history, gene flow and divergence time to reconstruct the biogeographical history of the genus. Results: Phylogenetic analyses recovered nine lineages delimited by some of the largest Amazonian rivers. Molecular dating and biogeographical studies showed that (1) most of the diversification in the genus occurred during the Quaternary; (2) vicariance was the most critical biogeographical process driving the history of this group and (3) two lineages are expanding their ranges, with one of them ( P. n. nigromaculata ) crossing the boundaries of areas of endemism. Main conclusions: Our results reinforce the notion that continental biotas areAbstract: Aim: Biotic interchange, speciation and extinction processes drive biotas assembling. However, the evolutionary outcomes of those mechanisms are complex and difficult to discriminate. Here, we investigate how these processes affect avian diversification in tropical forest regions and test the relative roles of vicariant speciation and biotic interchange on the assemblage of Amazonian biota through the reconstruction of the biogeographical history of bare‐eyes using molecular markers. Location: Amazon. Taxon: Phlegopsis (Aves: Thamnophilidae). Methods: We carried out a phylogenetic reconstruction of Phlegopsis based on four mtDNA and nuclear markers of 52 individuals from 21 localities representing all recognized taxa in the genus. We estimated phylogenetic relationships using both gene tree and species tree methods, demographic history, gene flow and divergence time to reconstruct the biogeographical history of the genus. Results: Phylogenetic analyses recovered nine lineages delimited by some of the largest Amazonian rivers. Molecular dating and biogeographical studies showed that (1) most of the diversification in the genus occurred during the Quaternary; (2) vicariance was the most critical biogeographical process driving the history of this group and (3) two lineages are expanding their ranges, with one of them ( P. n. nigromaculata ) crossing the boundaries of areas of endemism. Main conclusions: Our results reinforce the notion that continental biotas are assembled by alternating dispersal and vicariance events. In Phlegopsis, vicariance shaped the distribution and differentiation of most lineages, but one event of post‐speciation dispersal made two lineages sympatric in Western Amazonia. Dispersal events within the Amazon are not random but are constrained by the characteristics of the species that are expanding their ranges and the features of the places that receive such species. Although most of the speciation events of Phlegopsis occurred during the Quaternary, there is no reason to assume that such events were driven by climatic‐vegetation changes associated with the Milankovitch cycles. … (more)
- Is Part Of:
- Journal of biogeography. Volume 49:Number 6(2022)
- Journal:
- Journal of biogeography
- Issue:
- Volume 49:Number 6(2022)
- Issue Display:
- Volume 49, Issue 6 (2022)
- Year:
- 2022
- Volume:
- 49
- Issue:
- 6
- Issue Sort Value:
- 2022-0049-0006-0000
- Page Start:
- 1110
- Page End:
- 1123
- Publication Date:
- 2022-04-21
- Subjects:
- Amazon -- dispersal -- molecular systematics -- neotropical region -- quaternary -- speciation
Biogeography -- Periodicals
578.09 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2699 ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1111/jbi.14370 ↗
- Languages:
- English
- ISSNs:
- 0305-0270
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4952.900000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 21483.xml