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Revista mexicana de biodiversidad

versión On-line ISSN 2007-8706versión impresa ISSN 1870-3453

Resumen

AYALA-PEREZ, Víctor; ARCE, Nallely  y  CARMONA, Roberto. Spatio-temporal distribution of wintering aquatic birds in the Ciénega de Tláhuac, Chalco lacustrine plain, Mexico. Rev. Mex. Biodiv. [online]. 2013, vol.84, n.1, pp.327-337. ISSN 2007-8706.  http://dx.doi.org/10.7550/rmb.28632.

The winter waterbirds of the Ciénega de Tláhuac were studied from November 2006 to February 2007; a total of 40 species were observed, with 3 new records. The area was usedby al least 25 000 birds; 5 species were the dominant: 3 anatids (Anas clypeata, A. platyrhynchos diazi y Oxyura jamaicensis), 1 shorebird (Limnodromus scolopaceus) and 1 coot (Fulica americana). The abundance of A. platyrhynchos diazi, a threatened endemic subspecies, was remarkable because the 2 200 individuals observed represent 4% of its population.The best represented species showed a differential spatial use, with 3 patterns: 1) species with homogeneous use (A. clypeata y F. americana), 2) with affinity to a single portion of the wetland (A. p. diazi y O. jamaicensis), and 3) with affinity for both portions of the wetland (L. scolopaceus). The Ciénega de Tláhuac is an important wetland for birds in the region; during the winter 6 species protected by the Mexican Government occur there; however, there are human factors that threaten its integrity, so that protective and conservation actions are necessary.

Palabras llave : anatids; shorebirds; coots; inland wetlands; Tláhuac Lake.

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