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Issue: Vol. 4358 No. 2: 29 Nov. 2017
Type: Article
Published: 2017-11-29
DOI: 10.11646/zootaxa.4358.2.9
Page range: 365–374
Abstract views: 92
PDF downloaded: 4

A new subspecies of Short-toed Snake-eagle from Wallacea determined from morphological and DNA comparison

Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 129801, Singapore.
National Marine Science Centre, Southern Cross University, Australia.
Institute for Applied Ecology, University of Canberra, Australia.
National Marine Science Centre, Southern Cross University, Australia.
Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 129801, Singapore.
Aves Wallacea

Abstract

The taxonomic status of the geographically isolated population of Short-toed Snake-eagle Circaetus gallicus on the Lesser Sundas (=Nusa Tenggara) has been controversial. In the past they have been regarded as either a migrant population or a recently arrived resident population. Here we obtained DNA sequences from the mitochondrial cytochrome-b gene and combined genetic data with assessments of published and novel morphological data to clarify the taxonomic status of the Lesser Sundas population of C. gallicus. The cytochrome-b distance between the Lesser Sundas and Palearctic populations of C. gallicus is consistent with subspecific differentiation, indicating a possible divergence during one of the most recent Pleistocene glaciations. Although some of the morphological distinctions show overlap, the new subspecies can generally be diagnosed from nominate C. gallicus gallicus by being smaller and paler, and exhibiting less spotting and barring. Unlike nominate populations from mainland Eurasia, the new subspecies seems to lack pronounced sexual dimorphism. We here describe this new subspecies to science and discuss its biology and conservation status.

 

References

  1. Badan Pusat Statistik Provinsi Nusa Tenggara Timur (2017) Population Growth Rate Projection of NTT Province 2011–2020. Available from from: http://ntt.bps.go.id/linkTableDinamis/view/id/361 (accessed 17 October 2017)

    Brown, L.H. (1982) Accipitridae. In: Brown, L.H., Brown, E.K. & Newman, K. (Eds.), The Birds of Africa. Vol. 1. Academic Press, London, pp. 294–436.

    Clark, W.S. (1999) Plumage differences and taxonomic status of three similar Circaetus snake-eagles. Bulletin of the British Ornithological Club, 119, 56–58.

    Coates, B.J. & Bishop, K.D. (1997) A Guide to the Birds of Wallacea. Dove Publications, Alderley, Queensland, 535 pp.

    Cramp, S. & Simmons, K.E.L. (1980) Handbook of the Birds of Europe, the Middle East and North Africa. The Birds of the Western Palearctic. Vol. II. Oxford University Press, London, 696 pp.

    Drummond, A.J. & Rambaut, A. (2007) BEAST: Bayesian evolutionary analysis by sampling trees. BMC Evolutionary Biology, 7, 214.
    https://doi.org/10.1186/1471-2148-7-214

    Eaton, J.A., van Balen, B., Brickle, N.W. & Rheindt, F.E. (2016) Birds of the Indonesian Archipelago. Lynx Edicions, Barcelona, 496 pp.

    Ferguson-Lees, J. & Christie, D.A. (2001) Raptors of the World. Christopher Helm, London, 992 pp.

    Gamauf, A. & Haring, E. (2004) Molecular phylogeny and biogeography of honey‐buzzards (genera Pernis and Henicopernis). Journal of Zoological Systematics and Evolutionary Research, 42, 145–153.
    https://doi.org/10.1111/j.1439-0469.2004.00250.x

    Gamauf, A., Gjershaug, J.O., Kvaløy, K., Røv, N. & Haring, E. (2005) Molecular phylogeny of the hawk-eagles (genus Spizaetus). Zoologische Mededelingen, Leiden, 79, 179–180.

    Gascuel, O. (1997) BIONJ: an improved version of the NJ algorithm based on a simple model of sequence data. Molecular Biology and Evolution, 14, 685–695.
    https://doi.org/10.1093/oxfordjournals.molbev.a025808

    Gmelin, J.F. (1788) Caroli a Linné. Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, Cum Characteribus, Differentiis, Synonymis, Locis. Impensis Direct. Laurentii Salvii, Stockholm, 259 pp.

    Haring, E., Kvaløy, K., Gjershaug, J.O., Røv, N. & Gamauf, A. (2007) Convergent evolution and paraphyly of the hawk‐eagles of the genus Spizaetus (Aves, Accipitridae)—phylogenetic analyses based on mitochondrial markers. Journal of Zoological Systematics and Evolutionary Research, 45, 353–365.
    https://doi.org/10.1111/j.1439-0469.2007.00410.x

    Hasegawa, M., Kishino, H. & Yano, T.A. (1985) Dating of the human-ape splitting by a molecular clock of mitochondrial DNA. Journal of Molecular Evolution, 22, 160–174.
    https://doi.org/10.1007/BF02101694

    Helm-Bychowski, K. & Cracraft, J. (1993) Recovering phylogenetic signal from DNA sequences: relationships within the corvine assemblage (Class Aves) as inferred from complete sequences of mitochondrial cytochrome-b gene. Molecular Biology and Evolution, 10, 1196–1214.

    Kaup, J.J. (1847) Isis Von Oken. Expedition der Isis, Jena, 40 pp., col. 954.

    Kocher, T.D., Thomas, W.K., Meyer, A., Edwards, S.V., Paabo, S., Villa Blanca, F.X. & Wilson, A.C. (1989) Dynamics of mitochondrial DNA evolution in animals: amplification and sequencing with conserved primers. Proceedings of the National Academy of Sciences USA, 86, 6196–6200.
    https://doi.org/10.1073/pnas.86.16.6196

    Lerner, H. & Mindell, D.P. (2005) Phylogeny of eagles, Old World vultures, and other Accipitridae based on nuclear and mitochondrial DNA. Molecular Phylogenetics and Evolution, 37, 327–346.
    https://doi.org/10.1016/j.ympev.2005.04.010

    Lovette, I.J. (2004) Mitochondrial dating and mixed support for the “2% rule” in birds. The Auk, 121, 1–6.

    Mayr, E. (1941) Ueber einige Raubvogel der Kleinen Sunda-Inseln. Ornithologische Monatsberichte, 49, 42–47.

    Mees, G.F. (1975) A list of the birds known from Roti and adjacent islets (Lesser Sunda Islands). Zoologische Mededelingen Leiden, 49, 115–140.

    Mees, G.F. (2006) Avifauna of Flores. Zoologische Mededelingen Leiden, 80, 1–261.

    Norman, J.A., Christidis, L., Westerman, M. & Hill, F.A. (1998) Molecular data confirms the species status of the Christmas Island Hawk-Owl Ninox natalis. Emu, 98, 197–208.
    https://doi.org/10.1071/MU98028

    Orta, J., Kirwan, G.M. & Garcia, E.F.J. (2016) Short-toed Snake-eagle (Circaetus gallicus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (Eds.), Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. Available from: http://www.hbw.com/species/short-toed-snake-eagle-circaetus-gallicus (accessed 1 February 2017)

    Posada, D. (2008) jModelTest: phylogenetic model averaging. Molecular Biology and Evolution, 25, 1253–1256.
    https://doi.org/10.1093/molbev/msn083

    Quinn, T.W. (1997) Molecular evolution of the mitochondrial genome. In: Mindell, D.P. (Ed.), Avian Molecular Evolution and Systematics. Academic Press, Cambridge, pp. 3–28.
    https://doi.org/10.1016/B978-012498315-1/50002-9

    Rambaut, A., Suchard, M.A., Xie, D. & Drummond, A.J. (2014) Tracer v1.6. Available from: http://beast.bio.ed.ac.uk/Tracer (accessed 17 October 2017)

    Rensch, B. (1931) Die Vogelwelt von Lombok, Sumbawa und Flores. Mitteilungen vom Zoologischen Museum Berlin, 17, 451–637.

    Saitou, N. & Nei, M. (1987) The neighbor-joining method: a new method for reconstructing phylogenetic trees. Molecular Biology and Evolution, 4, 406–425.

    Schlegel, H. (1862) Buteones. Muséum d’Histoire naturelle des Pays‐Bas, 2, 1–30.

    Seibold, I. & Helbig, A.J. (1995) Evolutionary history of New and Old World vultures inferred from nucleotide sequences of the mitochondrial cytochrome b gene. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 350, 163–178.
    https://doi.org/10.1098/rstb.1995.0150

    Schwarz, G. (1978) Estimating the dimension of a model. Annals of Statistics, 6, 461–464.
    https://doi.org/10.1214/aos/1176344136

    Smith, A. (1829) Papers on natural history. South African Commercial Advertiser, 4, 2, col. 2.

    Tamura, K., Peterson, D., Peterson, N., Stecher, G., Nei, M. & Kumar, S. (2011) MEGA5: Molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Molecular Biology and Evolution, 28, 2731–2739.
    https://doi.org/10.1093/molbev/msr121

    Thiollay, J.M. (1994) Family Accipitridae. In: del Hoyo, J., Elliott, A. & Christie, D. (Eds.), Handbook of the Birds of the World. Vol. 2. Lynx Edicions, Barcelona, pp. 52–205.

    Trainor, C.R., Imanuddin, Aldy, F. & Walker, J.S. (2009) The Status and Conservation of the Endangered Wetar Ground-dove (Gallicolumba hoedtii) and other Wildlife on Wetar Island, Indonesia, 2008. Final Technical Report. Columbidae Conservation, Manchester, 86 pp.

    Trainor, C.R., Verbelen, F. & Hoste, S. (2012) Rediscovery of the Timor Bush-warbler Locustella (Bradypterus) timorensis on Alor and Timor, Wallacea: clarifying taxonomic affinities, defining habitat and survey recommendations. Bird Conservation International, 22, 354–369.
    https://doi.org/10.1017/S0959270911000530

    Trainor, C.R., Debus, S.J., Olsen, J., Norman, J.A. & Christidis, L. (2013) Bonelli's Eagle Aquila fasciata renschi in the Lesser Sundas, Wallacea: distribution, taxonomic status, likely origins and conservation status. Forktail, 29, 100–106.

    van Balen, S. & Compost, A.R. (1989) Overlooked evidence of the Short-toed Eagle Circaetus gallicus on Java. Kukila, 4, 44–46.

    van Balen, S.B., Nijman, V. & Prins, H.H.T. (2000) The Javan Hawk-eagle: misconceptions about rareness and threat. Biological Conservation, 96, 297–304.
    https://doi.org/10.1016/S0006-3207(00)00092-6

    Verreaux, J. & Des Murs, O. (1862) Observations sur le genre Circaetus; et description d'une nouvelle espéce. Ibis, 7, 208–209.

    Vieillot, L.J.P. (1818) Nouveau Dictionnaire d'Histoire Naturelle Appliquée aux Arts à l'agriculture, à l'économie rurale et domestique, à la médecine, etc. Vol. 23. Chex Deterville, Paris, 445 pp.

    Von Muller, J.W. (1851) Naumannia. Archiv für die Ornithologie, vorzugsweise Europa's. Organ der deutschen Ornithologen-Gesellschaft, 1, 27.

    Weir, J.T. & Schluter, D. (2008) Calibrating the avian molecular clock. Molecular Ecology, 17, 2321–2328.
    https://doi.org/10.1111/j.1365-294X.2008.03742.x

    Winassis, S., Toha, S.A. & Noske, R. (2011) Birds of Baluran National Park. Baluran National Park, East Java, 270 pp.

    Wurster, C.M., Bird, M.I., Bull, I.D., Creed, F., Bryant, C., Dungait, J.A. & Paz, V. (2010) Forest contraction in north equatorial southeast Asia during the Last Glacial Period. Proceedings of the National Academy of Sciences, 107, 15508–15511.
    https://doi.org/10.1073/pnas.1005507107