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The decline and probable extinction of the Colombian Grebe Podiceps andinus

Published online by Cambridge University Press:  11 May 2010

J. Fjeldså
Affiliation:
Zoological Museum, University of Copenhagen, Universitetsparken 15, DK-zioo Copenhagen, Denmark.
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Summary

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Searches were made for the Colombian Grebe Podiceps andinus in 1981 in the wetlands in the Eastern Andes of Colombia. The studies also included surveys of other waterbirds and recorded the general conditions of these wetlands, once the stronghold for waterbirds in the northern Andes. The Colombian Grebe was apparently last seen in 1977 in Lake Tota, and is probably extinct, although a flock may have been moving around outside Lake Tota and could have settled outside the former breeding area. The primary reason for the decline must be draining of wetlands and eutrophication and siltation which destroyed the open submergent Potamogeton vegetation, where this grebe may have been feeding on a large diversity of arthropods. Introduction of exotic fish and hunting may also have played a role.

Durante 1981 se han realizado varias expedidones en busca de Podiceps andinus en las zonas húmedas de los Andes Orientales de Colombia. Durante estos estudios también se censaron otras aves acuáticas y se tomaron notas sobre el estado general de éstas zonas húmedas, que en el pasado fueron el principal enclave para las aves acuáticas en los Andes del Norte. Aparentemente Podiceps andinus fué visto por última vez en 1977 en el Lago Tota, y está probablemente extinguido, aunque podría haber un bando en las inmediaciones de dicho lago que se hay a establecido fuera de la antigua área de cría. La razón fundamental del declive debe ser el drenaje de las zonas húmedas y la eutrofización y salinización que ha destruido la vegetatión sumergida de Potamogeton, donde ésta especie se alimentaba de una gran variedad de artrópodos. La introducción de peces exóticos y la caza pueden haber influido también.

Type
Research Article
Copyright
Copyright © Birdlife International 1993

References

Aguirre C., J. and Rangel, C. O. (1976) Contributión al estudio ecológico y fitosociológico de las communidades acuáticas macroscópicas y continentales de Laguna de Tota y alrededores. Bogotá: Universidad National de Colombia, Facultad de Ciendas (thesis).Google Scholar
Andersson, G., Berggren, H., Cronberg, G. and Gelin, C. (1978) Effects of planktivorous and benthivorous fish on organisms and water chemistry in eutrophic lakes. Hydrobiologia 59: 915.CrossRefGoogle Scholar
Blake, E. R. (1977) Manual of Neotropical birds, 1. Chicago: University of Chicago Press.Google Scholar
Borrero, J. I. (1947) Aves ocasionales en la sabana de Bogotá y las lagunas de Fúquene y de Tota. Caldasia 4: 495498.Google Scholar
Borrero, J. I. (1963) El Lago de Tota. Rev. Vac. Nac. Agron. 23: 115.Google Scholar
Campezano, M. (1960) El Lago de Tota. Bogotá: Universidad de Bogotá.Google Scholar
C.A.R. (Corporatión Autónoma Regional de la Sabana de Bogotá) (1978) Estudio de conservatión y manejo del Lago de Tota y su cuenca. Bogotá: Hidroestudios, Ingenieros Consultores.Google Scholar
Collar, N. J., Gonzaga, L. P., Krabbe, N., Madrono Nieto, A., Naranjo, L. G., Parker, T. A. and Wege, D. C. (1992) Threatened birds of the Americas: the ICBP/IUCN Red Data Book. Cambridge, U.K.: International Council for Bird Preservation.Google Scholar
Fjeldså, J. (1981) Comparative ecology of Peruvian grebes — a study of the mechanisms of evolution of ecological isolation. Vidensk. Meddr. dansk naturh. Foren. 144: 125249.Google Scholar
Fjeldså, J. (1982) Systematic and biological notes on the Colombian Coot Fulica americana columbiana (Aves, Rallidae). Steenstrupia 9: 209215.Google Scholar
Fjeldså, J. (1983) Character displacement and character release in grebes, Podicipedidae. Ibis 125: 463481.CrossRefGoogle Scholar
Fjeldså, J. (1985) Origin, evolution and status of the avifauna of Andean wetlands. Pp.85112 in Buckley, P. A., Foster, M. S., Morton, E. S., Ridgely, R. S. and Buckley, F. G., eds. Neotropical ornithology. Washington, D.C.: American Ornithologists' Union (Orn. Monogr. 36).Google Scholar
Fjeldså, J. (1986) Feeding ecology and possible life history tactics of the hooded grebe Podiceps gallardoi. Ardea 74: 4058Google Scholar
Fjeldså, J. (1988) Comparative ecology of the Australasian grebes (Aves: Podicipedidae). RAOU Report no. 54.Google Scholar
Fjeldså, J. (in press) Niche segregation of grebes and other diving birds of temperate freshwater habitats, worldwide: do parallel communities evolve? Proc. 7 Nordic Orn. Congr.Google Scholar
Frieling, H. (1933) Die Ausbreitung des Schwarzhalstauchers, Podiceps nigricollis nigricollis Brehm: ein Beitrag zur kausalanalytischen und vergleichenden Tiergeographie. Zoogeographica 1: 485550.Google Scholar
Gast, A. (1979) Biotic comparisons of native and non-native plant communities at Neusa, Cundinamarca, with an avian emphasis. Bogotá: Corporatión Autónoma Regional.Google Scholar
van Geel, B. and van den Hammen, T. (1973) Upper Quarternary vegetational and climatic sequences of the Fuquene Area (Eastern Cordillera, Colombia). Palaeogeogr. Palaeoclimatol. Palaeoecol. 14: 992.Google Scholar
Hernández C, J. (1980) Extinción y peligro de extinción en la fauna silvestre de Colombia. Reunión Iberoam. Zool. Vertebr. 1(1977): 73.Google Scholar
Hooghiemstra, H. (1991). Long continental pollen record from a tropical intermontane basin: Late Pliocene and Pleistocene history from a 540-meter core. Episodes 14: 107115.Google Scholar
Hurlbert, S. H., Loayza, W. and Moreno, T. (1986) Fish-flamingo-plankton interactions in the Peruvian Andes. Limnol. Oceanogr. 31: 457468.Google Scholar
Kalela, O. (1946) Zur Ausbreitungsgeschichte der Vögel vegetationsreicher Seen. Ann. Acad. Sci. Fenn. Ser. A, IV, Biol. 12: 181.Google Scholar
King, W. B. (1978-1979) Red data book, 2: Aves. Second edition. Morges, Switzerland: International Union for Conservation of Nature and Natural Resources.Google Scholar
Maltby, E. (1986) Waterlogged wealth: why waste the world's wet places? London: Earthscan.Google Scholar
Meyer de Schauensee, R. (1948-1952) The birds of the Republic of Colombia. Caldasia 5(22): 251-380; (23): 381-644; (24): 645-871; (25): 873-1112; (26): 11151214.Google Scholar
Meyer de Schauensee, R. (1959) Additions to the birds of the Republic of Colombia. Proc. Acad. Nat. Sri. Philadelphia 111: 5375.Google Scholar
Olivares, A. (1969) Aves de Cundinamarca. Bogotá: Directión de Divulgatión Cultural.Google Scholar
Simmons, K. E. L. (1962) Some recommendations for a revised check-list of the genera and species of grebes (Podicipedidae). Bull. Brit. Orn. Club 82: 109116.Google Scholar
Storer, R. W. (1979) Order Podicipediformes. Pp. 140155 in Mayr, E. and Cottrell, G. W., eds. Check-list of birds of the world, 1. Second edition. Cambridge, Mass.: Museum of Comparative Zoology.Google Scholar
Varty, N., Adams, j., Espin, P. and Hambler, C. (1985) An ornithological survey of Lake Tota, Colombia, 1982. Cambridge, U.K.: International Council for Bird Preservation (Study Report 12).Google Scholar