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First steps towards the conservation of the microendemic Patagonian frog Atelognathus nitoi

Published online by Cambridge University Press:  24 April 2009

Carmen Úbeda ,
Horacio Zagarese ,
Mónica Diaz  and
Fernando Pedrozo
Horacio Zagarese
Affiliation:
Centro Regional Bariloche, Universidad Nacional del Comahue, Unidad Postal Universidad, 8400—San Carlos de Bariloche, Argentina. E-mail: cubeda@bariloche.com.ar
Mónica Diaz
Affiliation:
Centro Regional Bariloche, Universidad Nacional del Comahue, Unidad Postal Universidad, 8400—San Carlos de Bariloche, Argentina. E-mail: cubeda@bariloche.com.ar
Fernando Pedrozo
Affiliation:
Centro Regional Bariloche, Universidad Nacional del Comahue, Unidad Postal Universidad, 8400—San Carlos de Bariloche, Argentina. E-mail: cubeda@bariloche.com.ar
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Abstract

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Atelognathus nitoi is a microendemic leptodactylid frog restricted to the area surrounding the pond Laguna Verde in the Nahuel Huapi National Reserve, north-west Patagonia, Argentina. Its habitat is potentially threatened by a number of anthropogenic and natural factors. The aim of this study was to obtain basic knowledge of the biology and habitat of the species, which would be useful for selecting management measures to ensure its conservation. The area was surveyed during all four seasons in 1996 and 1997 and Laguna Verde was sampled intensively in winter and in summer. Atelognathus nitoi is distributed patchily. The preferred microhabitats of adults and juveniles are the most humid areas of the forest. Reproduction and larval development occurs only in lentic environments. Laguna Verde is the only known permanent waterbody suitable for reproduction every year. During rainy years reproduction can also take place in temporary ponds. Action towards the conservation of A. nitoi should be aimed at preserving both the terrestrial and aquatic habitats. Laguna Verde appears to be a key site for the A. nitoi source population and plays an essential part in the conservation of this species. In terrestrial habitats it is vital to preserve the heterogeneity of the lower strata in the forest. The knowledge gained through this study has allowed the authors to suggest protective measures to mitigate or eliminate the impact of certain stressors on the ecology of the species.

Keywords

AnuraAtelognathus nitoiconservation biologyLeptodactylidaePatagonia
Type
Research Article
Information
Oryx , Volume 33 , Issue 1 , January 1999 , pp. 59 - 66
Copyright
Copyright © Fauna and Flora International 1999

References

Administración de Parques Nacionales (1994) Resolución 180/94. Listas de Vertebrados de Valor Especial, pp. 5. Parques Nacionales, Reservas Nacionales y Monumentos Naturales Patagónicos, Buenos Aires.Google Scholar
APHA (1985) Standard Methods for the Examination of Water and Wastewater, 16th edn, pp. 1134. American Public Health Association, Washington.Google Scholar
Barrio, A. (1973) Una nueva especie de Telmatobius (Anura, Leptodactylidae) procedente del dominio austral cordillerano argentino. Physis (Buenos Aires) Secc. C, 32(84), 207–213.Google Scholar
Barros, V.R., Cordon, V.H., Moyano, C.L., Méndez, R.J., Forquera, J.C. & Pizzio, O. (1983) Cartas de precipitación de la zona oeste de las provincials de Río Negro y Neuquén. Primera Contribution, pp. 28 + figs. Universidad Nacional del Comahue and Centro Nacional Patagónico-CONICET, Cinco Saltos, Río Negro.Google Scholar
Basso, N.G. & Úbeda, C.A. (1997) The tadpole of Atelognathus nitoi (Leptodactylidae: Telmatobiinae). Alytes, 15(3), 121–126.Google Scholar
Blaustein, A.R. & Wake, D.B. (1995) The puzzle of declining amphibian populations. Scientific American, 04, 56–61.CrossRefGoogle Scholar
Blaustein, A.R., Wake, D.B. & Sousa, W.P. (1994) Amphibian declines: judging stability, persistence, and susceptibility of populations to local and global extinctions. Conservation Biology, 8(1), 60–71.CrossRefGoogle Scholar
Cabrera, A.L. & Willink, A. (1980) Biogeografía de América Latina, Segunda edición, Serie de Biología, Monografía No. 13, vi + pp. 117. Secretaría General de la OEA, Programa Regional de Desarrollo Cientifíco y Tecnológico, Washington, D.C.Google Scholar
Christie, M.I. (1984) Determinación de prioridades conservacionistas para la fauna de vertebrados patagónicos'. Revista del Museo Argentino de Ciencias Naturales, Zoología, 13(56), 535–544.Google Scholar
Diaz, M. (1994) Fitoplancton de lagos Andino-Patagónicos. Surelación con factores abióticos, pp. 178. PhD thesis, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.Google Scholar
Duellman, W.E. (1993) Amphibian Species of the World: Additions and Corrections, Special Publication No. 21, i-iii, pp. 372. The University of Kansas, Museum of Natural History, Lawrence, KS, USA.CrossRefGoogle Scholar
Frost, D.R. (1985) Amphibian Species of the World. A Taxonomic and Geographical Reference, pp. 732. Allen Press Inc. and The Association of Systematics Collections, Lawrence, KS, USA.Google Scholar
Heyer, W.R., Donnelly, M.A., McDiarmid, R.W., Hayek, L.A.C. & Foster, M.S. (1994) Measuring and Monitoring Biological Diversity. Standard Methods for Amphibians, pp. 364. Smithsonian Institution Press, Washington and London.Google Scholar
IUCN (1996) 1996 IUCN Red List of Threatened Animals. IUCN—The World Conservation Union, Gland, Switzerland.Google Scholar
Nauwerk, A. (1963) The relations between zooplankton and phytoplankton in lake Erken. Symbolae Botanicae Upsalienses, 17, 1–163.Google Scholar
Provincia de Río Negro (1993) Ley 2056, Arts. 8, 9 and 12. Disposición Subdirección de Fauna 05/93: Especies protegidas de la Fauna Silvestre Provincial.Google Scholar
Reynolds, C.S. (1984) Phytoplankton periodicity: the interactions of form, function and environmental variability. Freshwater Biology, 14, 111–142.CrossRefGoogle Scholar
Secretaría de Agricultura y Ganadería (1983) Resolución 144, 83. Boletín Oficial 8/4/83 and 2/5/83, pp. 1–33.Google Scholar
Trevisan, R. (1979) Nota sull'uso dei volumi algali per la stima della biomassa. Rivista di Idrobiologia, 17(3), 345–357.Google Scholar
Úbeda, C.A., Grigera, D. & Reca, A.R. (1994) Estado de conservación de la herpetofauna del Parque y Reserva Nacional Nahuel Huapi. Cuadernos de Herpetología, 8(1), 155–163.Google Scholar
Úbeda, C.A. & Grigera, D. (eds) (1995) Recalificación del Estado de Conservation de la Fauna Silvestre Argentina. Región Patagónica, pp. 95. Secretaría de Recursos Naturales y Ambiente Humano y Consejo Asesor Regional Patagónico de la Fauna Silvestre, Buenos Aires.Google Scholar
Vollenweider, R.A. (1968) Scientific fundamentals of the eutrophication of lakes and flowing waters, with particular reference to nitrogen and phosphorus as factors in eutrophication, pp. 189. Organization for Economic Cooperation and Development (OECD).Google Scholar
Wake, D.B. & Morowitz, H.J. (1991) Declining amphibian populations—a global phenomenon? Findings and recommendations. Workshop sponsored by the Board on Biology, National Research Council of the USA. Alytes, 9(2), 33–42.Google Scholar
Wetzel, R.G. (1975) Limnology, pp. 743. Saunders, Philadelphia, PA.Google Scholar
Zagarese, H.E., Feldman, M. & Williamson, C.E. (1997) UV-B induced damage and photoreactivation in three species of Boeckella (Copepoda, Calanoida). Journal of Plankton Research, 19, 357–367.CrossRefGoogle Scholar