Vol. 14 No. 1-2 (1995), Short Communications
Vol. 14 No. 1-2 (1995)

Aspectos de la biologia reproductiva del Ostrero Negro Haematopus ater en las Islas Isabel, Bahia Bustamante, Chubut

Short Communications
Published 01-07-1995
Gabriel Punta
Universidad Nacional de la Patagonia San Juan Bosco, Facultad de Ciencias Naturales Sede Trelew, Belgrano 504,9100 Trelew, Chubut | Dirección General de Intereses Marítimos del Chubut, 9 de Julio y.Julio A. Roca, 9103 Rawson, Chubut
Gonzalo Herrera
Universidad Nacional de la Patagonia San Juan Bosco, Facultad de Ciencias Naturales Sede Trelew, Belgrano 504,9100 Trelew, Chubut
José Saravia
Universidad Nacional de la Patagonia San Juan Bosco, Facultad de Ciencias Naturales Sede Trelew, Belgrano 504,9100 Trelew, Chubut | Dirección General de Intereses Marítimos del Chubut, 9 de Julio y.Julio A. Roca, 9103 Rawson, Chubut
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PDF (Spanish)

Keywords

Ostrero Negro
Haematopus ater
Chubut
Biología reproductiva
Bahía Bustamante

How to Cite

Punta, Gabriel, Gonzalo Herrera, and José Saravia. 1995. “Aspectos De La Biologia Reproductiva Del Ostrero Negro Haematopus Ater En Las Islas Isabel, Bahia Bustamante, Chubut”. El Hornero 14 (1-2): 42-44. https://doi.org/10.56178/eh.v14i1-2.1022.
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Abstract

In our study about the breeding biology of the Blackish Oystercatcher Haematopus ater, conducted during 1991/92 breeding season, the laying period started at the end of the second week of October and finished at the end of November. Mean clutch size was 1.8 (sd= 0.4, n= 26, modal clutch size= 2), while the mean laying interval between the first and second eggs laid in the same clutch was 2.8 days (s.d.= 1.4, n= 16). The laying-hatching intervals averaged : R days (s.d.= 2.5, n= 11). Hatchings occurred between the second week of November and the first week of December and mean hatching interval was 1.8 days (s.d.= 0.5, n= 5).

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