Globally Threatened Amphibian Species Part 1

212
Threatened Amphibians of the World
VU Centrolene tayrona Ruíz-Carranza and Lynch, 1991
Vulnerable B1ab(iii)
Order, Family: Anura, Centrolenidae
Country Distribution: Colombia
Current Population Trend: Decreasing
© Taran Grant
Geographic Range This species is known from the Sierra Nevada de Santa Marta, in Magdalena Department,
Colombia. It has been recorded between 980 and 1,790m asl.
Population It is a common species.
Habitat and Ecology It occurs on vegetation next to water sources in sub-Andean forests and cloud forests. It lays
its eggs on leaves, and when hatched the tadpoles fall in to the water below where they develop further.
Major Threats The major threat is habitat loss due to agriculture (both crops and livestock), as well as water pollution
due to the fumigation of crops.
Conservation Measures Its range includes Parque Nacional Natural Sierra Nevada de Santa Marta.
Notes on taxonomy: This species was considered to be a synonym of Hylopsis platycephalus Werner, 1894, by Lynch (1981b), but this
was not accepted by McDiarmid and Savage (1984).
Bibliography: Acosta-Galvis, A.R. (2000), Lynch, J.D. (1981b), McDiarmid, R.W. and Savage, J.M. (1984), Ruiz-Carranza, P.M. and Lynch,
J.D. (1991b), Ruiz-Carranza, P.M., Ardila-Robayo, M.C. and Lynch, J.D. (1996)
Data Providers: John Lynch, Martha Patricia Ramírez Pinilla, Mariela Osorno-Muñoz, Jose Vicente Rueda, Adolfo Amézquita, María
Cristina Ardila-Robayo
VU Cochranella adiazeta Ruíz-Carranza and Lynch, 1991
Vulnerable B1ab(iii)
Order, Family: Anura, Centrolenidae
Country Distribution: Colombia
Current Population Trend: Decreasing
© Conservacion Internacional-Colombia
Geographic Range This species occurs on the eastern slope of the Cordillera Oriental in Cundinamarca, Santander
and Tolima Departments, Colombia, between 1,130 and 2,060m asl.
Population It is common, with several recent records.
Habitat and Ecology It occurs on vegetation next to streams in premontane humid forest; it also occurs in secondary
forest. It lays its eggs on vegetation, and the tadpoles develop in water.
Major Threats The major threat is habitat loss due to agricultural expansion (cattle ranching and crops).
Conservation Measures It occurs in the Santuario de Fauna y Flora Guanentá Alto Río Fonce.
Bibliography: Acosta-Galvis, A.R. (2000), Ruiz-Carranza, P.M. and Lynch, J.D. (1991d), Ruiz-Carranza, P.M., Ardila-Robayo, M.C. and
Lynch, J.D. (1996)
Data Providers: Jose Vicente Rueda, Martha Patricia Ramírez Pinilla
CR Cochranella anomala (Lynch and Duellman, 1973)
Critically Endangered B2ab(iii)
Order, Family: Anura, Centrolenidae
Country Distribution: Ecuador
Current Population Trend: Decreasing
© Natural History Museum and Biodiversity Research
Center, University of Kansas
Geographic Range This species is known only from the type locality: Río Azuela, Napo Province, in northern
Ecuador, at 1,740m asl. It is likely to occur a little more widely, but surveys elsewhere have not recorded it, and so
its distribution is unlikely to be extensive.
Population It has not been seen since its original discovery (one individual) in 1971. A few return visits to the type
locality have not recorded it.
Habitat and Ecology It lives in cloud forest. The holotype was found on a mossy limb of a bush about 1.5m above a cascading
rivulet at night (Lynch and Duellman 1973). Its breeding is unknown, but is likely to take place in streams.
Major Threats At the type locality, patches of forest have been cleared for agriculture and livestock farming.
Conservation Measures The distribution range of this species appears to overlap with Reserva Ecológica Cayambe-Coca.
Survey work is required to determine the population status of this species and to ascertain the limits
of its range.
Bibliography: Lynch, J.D. and Duellman, W.E. (1973), Ruiz-Carranza, P.M. and Lynch, J.D. (1991a)
Data Providers: Luis A. Coloma, Santiago Ron
VU Cochranella armata Lynch and Ruíz-Carranza, 1996
Vulnerable D2
Order, Family: Anura, Centrolenidae
Country Distribution: Colombia
Current Population Trend: Stable
© John D. Lynch
Geographic Range This species is known only from near Boquerón at the base of Cerro Ingles, near Vereda La
Amarillas, Município El Cairo, in Valle del Cauca Department, Colombia, at 2,160m asl. Even though every stream
within 5km of the type locality has been sampled, the species has not been recorded, suggesting that it has a very
restricted range.
Population It was reportedly a common species when collected.
Habitat and Ecology Specimens have been collected on vegetation next to an open stream in primary forest. Its
breeding habits are not known, but it is likely to breed in streams.
Major Threats There are no major threats, but given its small range it is susceptible to stochastic threatening
processes.
Conservation Measures The type locality is within a private reserve, which is part of a larger network of reserves.
Maintenance of the habitat of this restricted-range species is essential to ensure its persistence, and it requires
close population monitoring given its restriction to a single location.
Bibliography: Acosta-Galvis, A.R. (2000), Lynch, J.D. and Ruiz-Carranza, P.M. (1996a)
Data Providers: Erik Wild, John Lynch