Abstract
White-sand areas in the Colombian Amazon harbor many endemic and specialist species that are relatively little studied with respect to their ecology, distribution and zoogeographic affinities, for example Turdus thrushes. A recent expedition to the Serranía de Chiribiquete, a mountain range of Guianan origin in the Colombian Amazon, resulted in the discovery of an enigmatic Turdus thrush restricted to white-sand vegetation. Molecular phylogenetic analyses of the ND2 gene revealed that this population is genetically similar to T. leucomelas albiventer, from which it differs in its smaller size and darker, duller plumage. Therefore, we here describe this population as a new subspecies of T. leucomelas. Furthermore, our inspection of specimens of Turdus taxa from eastern Colombia revealed the existence of sympatry between T. ignobilis debilis and T. i. arthuri at two sites. Based on this evidence and previously documented genetic and phenotypic differences, we recognize T. arthuri as a distinct biological species. We analyze distributions and measurements of functional traits among four thrush taxa of eastern Colombia.
References
Álvarez, M., Umaña, A.M., Mejía, G.D., Cajiao, J., von Hildebrand, P. & Gast, F. (2003) Aves del Parque Nacional Natural Serranía de Chiribiquete, Amazonia—Provincia de la Guyana, Colombia. Biota Colombiana, 4, 49–63.
Arbeláez, M.V. & Callejas, R. (1999) Flórula of the Sandstone Plateau of Monochoa (Región de Araracuara, Medio Caquetá). Tropenbos, Bogotá, 296 pp.
Avendaño, J.E., Arbeláez-Cortés, E. & Cadena, C.D. (2017) On the importance of geographic and taxonomic sampling in phylogeography: a reevaluation of the diversification and species limits in a Neotropical thrush (Aves, Turdidae). Molecular Phylogenetics and Evolution, 111, 87–97.
https://doi.org/10.1016/j.ympev.2017.03.020
Borges, S.H., Cornelius, C., Ribas, C., Almeida, R., Guilherme, E., Aleixo, A., Dantas, S., Santos, M.P.D. & Moreira, M. (2016) What is the avifauna of Amazonian white-sand vegetation? Bird Conservation International, 26 (2), 192–204.
https://doi.org/10.1017/S0959270915000052
Cabanis, J.L. (1848) Vögel. In: Schomburgk, R., Reisen in Britisch-Guiana in den Jahren 1840–1844: nebst einer Fauna und Flora Guiana’s nach Vorlagen von Johannes Muller, Ehrenberg, Erichson, Klotsch, Troschal und Andern. Vol. 3. J.J. Weber, Leipzig, pp. 662–765
Cárdenas, D., González, M.F., Marín, N., Sua, S. & Betancur, J. (2018) Plantas y líquenes del Parque Nacional Natural Serranìa de Chiribiquete, Colombia. Colombia Amazónica, 10, 205–234.
Cerqueira, P.V., Santos, M.P.D. & Aleixo, A. (2016) Phylogeography, inter-specific limits and diversification of Turdus ignobilis (Aves, Turdidae). Molecular Phylogenetics and Evolution, 97, 177–186.
https://doi.org/10.1016/j.ympev.2016.01.005
Collar, N.J. (2004) Turdus leucomelas. In: del Hoyo, J., Christie, A. & Sargatal, J. (Eds.), Handbook of Birds of the World. Vol. 10. Lynx Edicions, Barcelona, pp. 665.
Cuadros, T. (1993) Distribución ecológica de las aves de Araracuara. Revista del Instituto de Ciencias Naturales y Ecología, Medellín, 4 (2), 15–30.
Davis, W. (2001) El Río: Exploraciones y Descubrimientos en la Selva Amazónica. Banco de la República/El Ancora Editores, Bogotá, Colombia, 639 pp.
Deignan, H.G., Paynter, R.A. Jr. & Ripley, S.D. (1964) Check-List of Birds of the World, Vol. X. Museum of Comparative Zoology, Cambridge, MA, 502 pp.
Duque Montoya, A.J. (2004) Plant Diversity Scaled by Growth Forms along Spatial and Environmental Gradients: a Study in the Rain Forests of NW Amazonia. Tropenbos International, Wageningen, 158 pp.
Estrada, J. & Fuertes, J. (1993) Estudios botánicos en la Guyana colombiana IV. Notas sobre la vegetación y flora de la Sierra de Chiribiquete. Revista de la Academia Colombiana de Ciencias, 18, 483–497.
Hammer, Ø., Harper, D.A.T. & Ryan, P.D. (2001) PAST: Paleontological Statistics Software Package for Education and Data Analysis. Palaeontologia Electronica, 4, 1–9.
Hellmayr, C.E. (1902) Revision einiger neotropischen Turdidae. Journal für Ornithologie, 50, 44–69.
https://doi.org/10.1007/BF02286794
Hellmayr, C.E. (1934) Birds of the Americas and Adjacent Islands. Part VII. Vol. XIII. Publ. 330. Field Museum of Natural History, Chicago, 532 pp.
Hilty, S.L. (2002) Birds of Venezuela, second edition. Princeton University Press, Princeton, N.J., 875 pp.
Hilty, S.L. & Brown, W.L. (1986) A Guide to the Birds of Colombia. Princeton University Press, Princeton, NJ, 836 pp.
Klicka, J., Voelker, G. & Spellman, G.M. (2005) A molecular phylogenetic analysis of the “true thrushes” (Aves: Turdinae). Molecular Phylogenetics and Evolution, 34, 486–500.
https://doi.org/10.1016/j.ympev.2004.10.001
Lanfear, R., Calcott, B., Ho, S.Y.W. & Guindon, S. (2012) PartitionFinder: combined selection of partitioning schemes and substitution models for phylogenetic analyses. Molecular Biology and Evolution, 29, 1695–1701.
https://doi.org/10.1093/molbev/mss020
Leigh, J.W. & Bryant, D. (2015) PopART: Full-feature software for haplotype network construction. Methods in Ecology and Evolution, 6, 1110–1116.
https://doi.org/10.1111/2041-210X.12410
Lawrence, G.N. (1870) Characters of some new South American birds, with notes on some other rare or little known species. Annals of the Lycaeum of Natural History of New York, 9, 265–275.
https://doi.org/10.1111/j.1749-6632.1870.tb00189.x
Lichtenstein, H. (1823) Verzeichnis der Doublettin des Zoologische Museum der Königl.Universitët zu Berlin: Beschreibung vieler bisher unbekannter Säugethieren, Vógeln, Anfibien und Fischen. In Commission bei T. Trautwein, Berlink, 118 pp.
López-O., J.P., Stiles, F.G. & Parra-V., J.L. (2016) Protocolos para la medición de rasgos funcionales en aves. In: Salguero-N., B. (Ed.), La Ecología Funcional como Aproximación al Estudio, Manejo y Conservación de la Biodiversidad: Protocolos y Aplicaciones. Instituto Alexander von Humboldt, Bogotá, Colombia, pp. 81–125.
Matapí Yukuna, U. (2018) Mejeime meme, ecos del silencio: patrimonio vivo del conocimiento upichía asociado al cuidado de la biodiversidad. Colombia Amazónica, 10, 59–68.
Núñez-Zapata, J., Peterson, A.T. & Navarro-Sigüenza, A.G. (2016) Pleistocene diversification and speciation of White-throated Thrush (Turdus assimilis; Aves: Turdidae). Journal of Ornithology, 157, 1073–1085.
https://doi.org/10.1007/s10336-016-1350-6
Nylander, J.A.A., Olsson, U., Alström, P. & Sanmartin, I. (2008) Accounting for phylogenetic uncertainty in biogeography: A Bayesian approach to dispersal-vicariance analysis of the thrushes (Aves: Turdus). Systematic Biology, 57, 257–268.
https://doi.org/10.1080/10635150802044003
O’Neill, J.P., Lane, D.F. & Naka, L.N. (2011) A cryptic new species of thrush (Turdidae: Turdus) from western Amazonia. The Condor, 113, 869–880.
https://doi.org/10.1525/cond.2011.100244
Olivares, A. (1962) Aves de la región sur de la Sierra de la Macarena. Revista de la Academia Colombiana de Ciencias, 11, 305–344.
Rambaut, A., Drummond, A.J. & Suchard, M. (2003) Tracer. Version 1.6. MCMC Trace Analysis Package. Institute of Evolutionary Biology, Department of Computer Science. [program]
Ronquist, F. & Huelsenbeck, J.P. (2003) MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics, 19, 1572–1574.
https://doi.org/10.1093/bioinformatics/btg180
Salvin, O. (1885) A list of the birds obtained by Mr. Henry Whitely from British Guiana. The Ibis, 3, 195–219.
Spix, J. von (1824) Avium Species Novae in Itinere por Brasiliam annis MDCCCXVII–MDCCCXX Colageti et Descriptisit. Vol. 1. F.S. Hübschmann, München,326 pp. [pp. 70, pl. 69, fig. 2]
Sclater, P.L. (1857) Descriptions of eleven new birds from tropical America. Proceedings of the Zoological Society of London, 25, 271–277.
https://doi.org/10.1111/j.1096-3642.1857.tb01240.x
Stamatakis, A. (2014) RAxML version 8: A tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics, 30, 1312–1313.
https://doi.org/10.1093/bioinformatics/btu033
Smithe, F. (1975) Naturalists’ Color Guide. Part 1. American Museum of Natural History, New York, NY, 29 pp.
Stiles, F.G. (1995) Dos subespecies nuevas de aves de la Sierra de Chiribiquete, Colombia. Lozania, 66, 1–16.
Stiles, F.G. (1996) A new species of hummingbird from the Sierra de Chiribiquete, southeastern Colombia, with a review of the Chlorostilbon mellisugus complex. Wilson Bulletin, 108, 1–27.
Stiles, F.G., Tellería, J.L. & Díaz, M. (1995) Observaciones sobre la ecología, composición taxonómica y biogeografía de la avifauna de la Sierra de Chiribiquete, Departamento de Caquetá, Colombia. Caldasia, 17, 481–500.
Stiles, F.G. & Beckers, J. (2015) Un inventario de las aves de la región de Inírida (Guainía, Colombia). Ornitología Colombiana, 15, 21–52.
Stiles, F.G. & Naranjo, L.G. (2018) La avifauna del Parque Nacional Natural Chiribiquete: resultados de tres expediciones recientes a sectores previamente inexplorados. Colombia Amazónica, 10, 141–160.
Tamura, K., Stecher, G., Peterson, D., Filipski, A. & Kumar, S. (2013) MEGA6: Molecular evolutionary genetics analysis version 6.0. Molecular Biology and Evolution, 30, 2725–2729.
https://doi.org/10.1093/molbev/mst197
Tavares, E.S., Gonçalves, P., Miyaki, C.Y. & Baker, A.J. (2011) DNA barcode detects high genetic structure within Neotropical bird species. PLoS One, 6 (12), e28543.
https://doi.org/10.1371/journal.pone.0028543
Vieillot, L.P. (1818) Dictionnaire d’Histoire Naturelle, Nouvelle Edition, tome 20, Imprimerie Abel d’Lanoe, Paris, 586 pp.
Voelker, G., Rohwer, S., Bowie, R.C.K. & Outlaw, D.C. (2007) Molecular systematics of a speciose, cosmopolitan songbird genus: Defining the limits of, and relationships among, the Turdus thrushes. Molecular Phylogenetics and Evolution, 42, 422–434.
https://doi.org/10.1016/j.ympev.2006.07.016
Wetmore, A. (1946) New birds from Colombia. Smithsonian Miscellaneous Collections, 106, 1–14.