Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes. (21st July 2020)
- Record Type:
- Journal Article
- Title:
- Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes. (21st July 2020)
- Main Title:
- Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes
- Authors:
- Chesser, R Terry
Isler, Morton L
Cuervo, Andrés M
Cadena, C Daniel
Galen, Spencer C
Bergner, Laura M
Fleischer, Robert C
Bravo, Gustavo A
Lane, Daniel F
Hosner, Peter A - Abstract:
- Abstract: The Grallaria rufula complex is currently considered to consist of 2 species, G. rufula (Rufous Antpitta) and G. blakei (Chestnut Antpitta). However, it has been suggested that the complex, populations of which occur in humid montane forests from Venezuela to Bolivia, comprises a suite of vocally distinct yet morphologically cryptic species. We sequenced nuclear and mitochondrial DNA for 80 individuals from across the distribution of the complex to determine the extent of genetic variation between and within described taxa. Our results revealed 18 geographically coherent clades separated by substantial genetic divergence: 14 within rufula, 3 within blakei, and 1 corresponding to G. rufocinerea (Bicolored Antpitta), a species with distinctive plumage found to be nested within the complex. Neither G. rufula nor G. blakei as presently defined was monophyletic. Although 6 of the 7 recognized subspecies of G. rufula were monophyletic, several subspecies contained substantial genetic differentiation. Genetic variation was largely partitioned across recognized geographic barriers, especially across deep river valleys in Peru and Colombia. Coalescent modeling identified 17 of the 18 clades as significantly differentiated lineages, whereas analyses of vocalizations delineated 16 biological species within the complex. The G. rufula complex seems unusually diverse even among birds of the humid Andes, a prime location for cryptic speciation; however, the extent to which otherAbstract: The Grallaria rufula complex is currently considered to consist of 2 species, G. rufula (Rufous Antpitta) and G. blakei (Chestnut Antpitta). However, it has been suggested that the complex, populations of which occur in humid montane forests from Venezuela to Bolivia, comprises a suite of vocally distinct yet morphologically cryptic species. We sequenced nuclear and mitochondrial DNA for 80 individuals from across the distribution of the complex to determine the extent of genetic variation between and within described taxa. Our results revealed 18 geographically coherent clades separated by substantial genetic divergence: 14 within rufula, 3 within blakei, and 1 corresponding to G. rufocinerea (Bicolored Antpitta), a species with distinctive plumage found to be nested within the complex. Neither G. rufula nor G. blakei as presently defined was monophyletic. Although 6 of the 7 recognized subspecies of G. rufula were monophyletic, several subspecies contained substantial genetic differentiation. Genetic variation was largely partitioned across recognized geographic barriers, especially across deep river valleys in Peru and Colombia. Coalescent modeling identified 17 of the 18 clades as significantly differentiated lineages, whereas analyses of vocalizations delineated 16 biological species within the complex. The G. rufula complex seems unusually diverse even among birds of the humid Andes, a prime location for cryptic speciation; however, the extent to which other dispersal-limited Andean species groups exhibit similar degrees of cryptic differentiation awaits further study. … (more)
- Is Part Of:
- Auk. Volume 137:Number 3(2020)
- Journal:
- Auk
- Issue:
- Volume 137:Number 3(2020)
- Issue Display:
- Volume 137, Issue 3 (2020)
- Year:
- 2020
- Volume:
- 137
- Issue:
- 3
- Issue Sort Value:
- 2020-0137-0003-0000
- Page Start:
- Page End:
- Publication Date:
- 2020-07-21
- Subjects:
- Andes -- cryptic species -- Grallaria rufula -- Grallariidae -- Rufous Antpitta -- species limits
Andes -- delimitación de especies -- especie críptica -- Grallaria rufula -- Grallariidae
Birds -- Periodicals
Ornithology -- Periodicals
Oiseaux -- Périodiques
Ornithologie -- Périodiques
Birds
Ornithology
Birds
Periodicals
598 - Journal URLs:
- https://academic.oup.com/auk ↗
http://www.oxfordjournals.org/ ↗ - DOI:
- 10.1093/auk/ukaa009 ↗
- Languages:
- English
- ISSNs:
- 0004-8038
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 15144.xml