Megascops watsonii

Autor: Dantas, Sidnei M., Weckstein, Jason D., Bates, John, Oliveira, Joiciane N., Catanach, Therese A., Aleixo, Alexandre
Rok vydání: 2021
Předmět:
DOI: 10.5281/zenodo.4647745
Popis: Megascops watsonii (Cassin, 1848) Guianan Screech-Owl corujinha-das-guianas (Portuguese) Ephialtes watsonii Cassin, 1848 (lectotypes at ANSP examined) Otus watsonii (Cassin, 1848): Cory (1918; part: specimens east of the Negro and Amazon rivers including southern Venezuela, northern Brazil, Guiana, Surinam, and French Guiana). Otus watsonii watsonii (Cassin, 1848): Chapman (1928); Peters (1940); Marks et al. (1999); Weick (2006): 84 (part: specimens east of the Negro and Amazon rivers including southern Venezuela, northern Brazil, Guiana, Surinam, and French Guiana). Megascops watsonii (Cassin, 1848): König et al. (1999); König & Weick (2008; part: specimens east of the Negro and Amazon rivers including southern Venezuela, northern Brazil, Guiana, Surinam, and French Guiana). Megascops watsonii watsonii (Cassin, 1848): Dickinson & Remsen (2013); Clements et al. (2019); Gill et al. (2020) (part: specimens east of the Negro and Amazon rivers including southern Venezuela, northern Brazil, Guiana, Surinam, and French Guiana). The type locality of this taxon is defined as “Orinoco River, Venezuela ” (Chapman 1928) and it corresponds to Clade A recovered herein as the lineage of the Megascops atricapilla-M. watsonii complex restricted to the Guiana Shield, east of the Branco and Negro rivers, in Brazil, through Venezuela, Guyana, French Guiana, and Surinam. As reported above, sequences obtained from one of the lectotypes of M. watsonii (ANSP 2445) confidently placed it within Clade A (Fig. 5). Statistical support for the reciprocal monophyly and significant coalescence of M. watsonii with respect to the other species in the complex was high in all analyses (Figs. 3 and 4). Average corrected pairwise p-distances between M. watsonii and the remaining species in the Megascops atricapilla-M. watsonii complex were as follows: 6.7% (M. usta); 6.4 % (M. stangiae); 6.7% (M. ater); 6.6 % (M. alagoensis); and 7.1% (M. atricapilla). Dark morphs of this species tend to be darker than individuals from other species in the Megascops atricapilla-M. watsonii complex, except for M. ater (see below), from which it differs mainly in back color. In some individuals of M. watsonii (e. g. MPEG 66635), the back is black. The darker individuals also tend to have wider and bolder underparts striping than in other species of the complex, which distinguishes them from M. ater dark morphs. However, as is usual within this genus, the tremendous individual variation in M. watsonii makes any generalization about diagnostic morphological characters impossible. Longsong distinguishable from slower-paced longsongs of M. stangiae and M. usta and faster paced longsongs of M. atricapilla (Fig. 9: Tables 6 and 10). Shortsong faster-paced than in M. usta and M. stangiae (Table 8).
Published as part of Dantas, Sidnei M., Weckstein, Jason D., Bates, John, Oliveira, Joiciane N., Catanach, Therese A. & Aleixo, Alexandre, 2021, Multi-character taxonomic review, systematics, and biogeography of the Blackcapped / Tawny-bellied Screech Owl (Megascops atricapilla-M. watsonii) complex (Aves: Strigidae), pp. 401-444 in Zootaxa 4949 (3) on pages 427-428, DOI: 10.11646/zootaxa.4949.3.1, http://zenodo.org/record/4640330
{"references":["Cory, C. B. (1918) Catalogue of Birds of the Americas. Part. II. Field Museum of Natural History Zoological Series XIII. Field Museum, Chicago, Illinois, 315 pp.","Chapman, F. M. (1928) Descriptions of new birds from eastern Ecuador and eastern Peru. American Museum Novitates, No. 332, 1 - 12.","Peters, J. L. (1940) Check-list of Birds of the World. Vol. 4. Museum of Comparative Zoology, Cambridge, Massachusetts, 291 pp.","Marks, J. S., Cannings, R. J. & Mikkola, H. (1999) Family Strigidae. In: del Hoyo, J., Elliott, A. & Sargatal, J. (Eds.), Handbook of the Birds of the World. Vol. 5. Barn-owls to Hummingbirds. Lynx Edicions, Barcelona, pp. 1 - 759.","Konig, C., Weick, F. & Becking, J. H. (1999) Owls: a Guide to the Owls of the World. Yale University Press, New Haven, Connecticut, 462 pp.","Konig, C. & Weick, F. (2008) Owls of the World. Christopher Helm / A & C Black Publishers Ltd., London, 528 pp.","Dickinson, E. C. & Remsen Jr., J. V. (Eds.), (2013) The Howard and Moore Complete Checklist of the Birds of the World. Vol. 1. 4 th Edition. Non-Passerines, Aves Press, Eastbourne, 461 pp.","Clements, J. F., Schulenberg, T. S., Iliff, M. J., Billerman, S. M., Fredericks, T. A., Sullivan, B. L. & Wood, C. L. (2019) The eBird / Clements Checklist of Birds of the World. Version 2019. Available from: https: // www. birds. cornell. edu / clementschecklist / download (accessed 16 February 2021)","Gill, F., Donsker, D. & Rasmussen, P. (2020) IOC World Bird List. Version 10.1. Available from: https: // doi. org / 10.14344 / IOC. ML. 10.1 (accessed 16 February 2021)"]}
Databáze: OpenAIRE
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