Globally Threatened Amphibian Species Part 1

Globally Threatened Amphibian Species 211
EN Centrolene pipilatum (Lynch and Duellman, 1973)
Endangered B1ab(iii,iv,v)+2ab(iii,iv,v)
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 occurs on the Amazonian slopes of the Andes in Río Salado, Río Azuelo and 16km
from Santa Rosa in Napo and Sucumbíos Provinces, Ecuador, at 1,300-1,740m asl.
Population First collected in 1971, this species was last recorded in 1977. Several trips to known localities where
the species occurs have not turned up any individuals (e.g. Bustamante 2002); however, the area of available habitat
in the vicinity of the type locality is large, and the sampling effort has probably been insufficient.
Habitat and Ecology It is found near streams in cloud forest, and has been recorded over 3m above the ground.
Eggs are presumably laid on vegetation, with the larvae developing in water.
Major Threats The main threat to the species is habitat loss and degradation mainly due to smallholder farming
and livestock ranching. It is possible that it may also have been affected by chytridiomycosis.
Conservation Measures It probably occurs in the Reserva Ecológica Cayambe-Coca. Further survey work is needed
to determine the current population status of this species.
Bibliography: Bustamante, M. R. (2002), Lynch, J.D. and Duellman, W.E. (1973), Ruiz-Carranza, P.M. and Lynch, J.D. (1991a)
Data Providers: Luis A. Coloma, Santiago Ron, Diego Cisneros-Heredia
CR Centrolene puyoense (Flores and McDiarmid, 1989)
Critically Endangered B1ab(iii)
Order, Family: Anura, Centrolenidae
Country Distribution: Ecuador
Current Population Trend: Decreasing
Geographic Range This species is known only from the type locality:
Puyo, Pastaza Province, Ecuador, at 1,000-1,050m asl. It is likely
to occur in other nearby localities, but its distribution is probably
very limited in extent.
Population It has not been seen since the early 1980s, but there
has not been any survey work for the species. However, there is no
suitable habitat left at the type locality, so its continued survival
depends upon undiscovered populations occurring nearby in suitable
habitat.
Habitat and Ecology It lives in lower montane forest. The holotype
was collected in the evening, after it had rained the previous day and
night (Flores and McDiarmid 1989). Reproduction is presumed to be
via eggs laid on vegetation, with the tadpoles developing in water.
Major Threats Habitat destruction and degradation due to agriculture
and logging is the primary threat to this species. By 1996, the
forest had been cleared at the type locality.
Conservation Measures The species is not recorded from any protected area. Survey work is urgently required to
determine the current population status of this species and the precise limits of its range.
Notes on taxonomy: Duellman and Schulte (1993) transferred this species to the genusCentrolene from Cochranella.
Bibliography: Duellman, W.E. and Schülte, R. (1993), Flores, G. and McDiarmid, R.W. (1989), Ruiz-Carranza, P.M. and Lynch, J.D.
(1991a)
Data Providers: Luis A. Coloma, Santiago Ron
VU Centrolene quindianum Ruíz-Carranza and Lynch, 1995
Vulnerable D2
Order, Family: Anura, Centrolenidae
Country Distribution: Colombia
Current Population Trend: Stable
© John D. Lynch
Geographic Range This species is known from Filandia and Salinto in Quindio Department, and from Ucumari and
Pereira in Risaralda Department, on the western flank of the Cordillera Central, between 1,900 and 2,050m asl, in
Colombia.
Population It is a very common species.
Habitat and Ecology It occurs on vegetation next to streams in sub-Andean forests. Eggs are laid on leaves overhanging
the water and when they hatch the tadpoles drop into the water below where they develop further. They
require gallery forest to lay their eggs, hence they do not tolerate much habitat disturbance.
Major Threats Although there are no major threats to the species overall at present, habitat loss and degradation,due
to the expansion of cattle raising, and water pollution, are potential future threats. The invasive Rana catesbeiana
is also a threat, since it eats the tadpoles of this species.
Conservation Measures Its range includes a few protected areas. There is a need for close monitoring of the
population status of this species.
Bibliography: Acosta-Galvis, A.R. (2000), Ruiz-Carranza, P.M. and Lynch, J.D. (1995b), Ruiz-Carranza, P.M., Ardila-Robayo, M.C. and
Lynch, J.D. (1996)
Data Providers: Erik Wild, John Lynch
VU Centrolene robledoi Ruíz-Carranza and Lynch, 1995
Vulnerable B1ab(iii)
Order, Family: Anura, Centrolenidae
Country Distribution: Colombia
Current Population Trend: Decreasing
© Andrew Crawford
Geographic Range This species occurs north of the Cordillera Central in the department of Antioquia, on the eastern
fl anks of the Cordillera Central in the department of Risaralda, and on the western fl ank of the Cordillera Central in
the department of Caldas, in Colombia. It has been recorded from 800-2,800m asl.
Population It is a common species.
Habitat and Ecology It occurs on vegetation next to streams in cloud forest. It lays its eggs on leaves, and when
hatched the tadpoles drop in to the water below. It has also been recorded from secondary forests near water.
Major Threats The major threat is habitat loss and degradation due to the expansion of agriculture, coupled with
water source loss, and pollution from the fumigation of crops.
Conservation Measures Its range includes Reserva Regional Bosques de Florencia in the department of Caldas.
Bibliography: Ardila-Robayo, M.C. and Acosta-Galvis, A. (2000b), Ruiz-Carranza, P.M. and Lynch, J.D. (1995b), Ruiz-Carranza, P.M.,
Ardila-Robayo, M.C. and Lynch, J.D. (1996)
Data Providers: Martha Patricia Ramírez Pinilla, Mariela Osorno-Muñoz, Jose Vicente Rueda, Adolfo Amézquita, María Cristina
Ardila-Robayo