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Amphibia, Epipedobates bilinguis, Agalychnis calcarifer, Eleutherodactylus croceoinguinis: Distribution extensions

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NOTES ON GEOGRAPHIC DISTRIBUTION
Amphibia, Epipedobates bilinguis, Agalychnis
calcarifer, Eleutherodactylus croceoinguinis:
Distribution extensions.
Diego F. Cisneros-Heredia
College of Biological and Environmental Sciences,
Universidad San Francisco de Quito, Casilla Postal
17-12-841, Quito, Ecuador. e-mail:
diegofrancisco_cisneros@yahoo.com
Knowledge on Ecuadorian amphibians is still
fragmented, lacking baseline data on the
distribution ranges of several species. The
increment of knowledge on the Neotropical
herpetofauna is an urgent issue, especially if we
understand that several species are becoming
endangered or extinct. Herein I report distribution
extensions for three species of amphibians from
Ecuador. Abbreviations used in the text include:
DFCH-USFQ = DF Cisneros-Heredia´s collection,
housed at the Universidad San Francisco de Quito;
and, FHGO = Fundación Herpetológica G. Orcés’
collection. Localities and their geographic
coordinates and elevations were determined from
researchers’ field notes and museum records and
revised according to the 2000 physical map of the
Republic of Ecuador published by the Instituto
Geográfico Militar.
DENDROBATIDAE: Epipedobates bilinguis
occurs in the Amazonia of Ecuador and Colombia,
on the Napo and Caqueta river basins (Castro et al.
2004). This species was collected at the Tiputini
Biodiversity Station (00°37'05" S 76°10'19" W,
215 m), province of Orellana, on 13 August 1999
and 18-23 April 2000 by D. F. Cisneros-Heredia
(DFCH-USFQ 058, 160-61, 223) (Figure 1),
representing the easternmost locality for the
species, extending its range ca. 40 km E from
previous reported localities (Jungfer 1989, Ron
2001). Epipedobates bilinguis Jungfer was
synonimized with Epipedobates ingeri Cochran
and Goin by Amézquita et al. (2004) without
further comments; I keep both names independent
pending further studies on the Dendrobatidae from
Amazonian Colombia and Ecuador.
HYLIDAE: A specimen (FHGO 2880) of
Agalychnis calcarifer was collected at Charco
Vicente (2 hrs by boat from(2 hrs by boat from San
Figure 1. Adult Epipedobates bilinguis Jungfer
(DFCH-USFQ 160) from the Tiputini Biodiversity
Station, province of Orellana, Republic of
Ecuador, August 1999.
Miguel, Cayapas river basin, 00°44’ N 78°53’ W,
ca. 50 m), province of Esmeraldas, on 05
December 2000 by M. Morales, A. Ortíz, and J.
Regalado. This species is known from isolated
localities along its geographical distribution range
in the Atlantic versant of Central America from
eastern Honduras to central Panama, and on the
Pacific versant from eastern Panama to
northwestern Ecuador. In Ecuador, A. calcarifer
was known only from its type locality (Río
Durango, province of Esmeraldas), and the locality
reported herein represents the second record for the
species in the country since Boulenger’s
description, ca. 25 km from the type locality
(Boulenger 1902, Duellman 2001, Coloma et al.
2004).
LEPTODACTYLIDAE: Eleutherodactylus
croceoinguinis occurs mainly along the lowland
Amazonian rainforests of Ecuador, adjacent
Colombia, and Peru (Frost, 2004; Doan and
Arizábal, 2002). A specimen (FHGO 3258) was
collected at the Imuya wetlands, between Aguarico
and Lagartococha rivers (00º40’ S 75º20’ W, 210
m), province of Sucumbíos, on 07 October 2000 by
D. Almeida and A. Ortíz, representing the
easternmost record for the distribution of the
species in Ecuador and extending its range ca. 100
km NE from previous reported localities (Ron
2001, Cisneros-Heredia 2003).
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Check List 1(1)
NOTES ON GEOGRAPHIC DISTRIBUTION
Acknowledgments
I am grateful to J. M. Touzet and A. M. Velasco
for allowing access to material deposited at the
FHGO; to the Tiputini Biodiversity Station staff,
especially D. Romo, C. Barriga de Romo, K.
Swing, M. Rodríguez, and the Narváez brothers for
support during field work; to J. Simmons and R.
McDiarmid for sharing literature. Tiputini
Biodiversity Station, Universidad San Francisco de
Quito, Maria Elena Heredia, and Laura Heredia
provided financial support. The Ministry of
Environment of the Republic of Ecuador issued the
research and collection permit number 19-IC-
FAU-DFN.
Literature Cited
Amézquita, A., J. V. Rueda, and J. N. Rueda.
2004. Rana venenosa de Inger, Epipedobates
ingeri. Pp. 346-349. In J. V. Rueda, J. D.
Lynch, and A. Amézquita (eds.), Libro Rojo
de Anfibios de Colombia. Bogota. CI-
Colombia, ICN-Universidad Nacional de
Colombia, Ministerio del Medio Ambiente.
Boulenger, G. A. 1902. Descriptions of new
batrachians and reptiles from north-western
Ecuador. Annals and Magazine of Natural
History 7(9):51-57.
Castro, F., J. V. Rueda, W. Bolívar, R. A.
Estupiñan, L. Coloma, S. Ron, and A.
Almendáriz. 2004. Epipedobates bilinguis.
Global Amphibian Assessment. Version 15
October 2004. Electronic Database accessible
at <http://www.globalamphibians.org>.
IUCN, Conservation International, and
NatureServe. Accessed on 01 May 2005.
Cisneros-Heredia, D.F. 2003. Herpetofauna de la
Estación de Biodiversidad Tiputini. In S. de la
Torre and G. Reck. (eds.) Ecología y
Ambiente en el Ecuador. Congr. Ecología y
Ambiente, Ecuador país megadiverso. CD.
Universidad San Francisco de Quito, Ecuador.
Coloma, L. A., S. Ron, K.-H. Jungfer, B. Kubicki,
F. Bolaños, G. Chaves, F. Solís, R. Ibáñez, C.
Jaramillo, J. Savage, G. Cruz, L. D. Wilson,
and G. Köhler. 2004. Agalychnis calcarifer.
Global Amphibian Assessment. Version 15
October 2004. Electronic Database accessible
at <http://www.globalamphibians.org>.
IUCN, Conservation International, and
NatureServe. Accessed on 01 May 2005.
Doan, T. M. and W. Arizábal A. 2002.
Microgeographic variation in species
composition of the herpetofaunal communities
of Tambopata Region, Peru. Biotropica 34(1):
101-117.
Duellman, W.E. 2001. The Hylid Frogs of Middle
America. Society for the Study of Amphibians
and Reptiles. Ithaca, New York, USA. Pp.
1159.
Frost, D. R. 2004. Amphibian Species of the
World: an online reference. Version 3.0.
Electronic Database accessible at
http://research.amnh.org/herpetology/amphibi
a/index.html. American Museum of Natural
History, New York, USA. Accessed on 01
May 2005.
Jungfer, K.-H. 1989. Pfeilgiftfrosche der Gattung
Epipedobates mit rot granuliertem Rücken aus
dem Oriente von Ecuador und Peru.
Salamandra 25(2): 81-98.
Ron, S. R. 2001. Anfibios de Parque Nacional
Yasuní, Amazonía ecuatoriana. Version 1.3.
(2 March 2001) Electronic database accessible
at
<http://www.bio.utexas.edu/grad/ecuador/web
/yasuni/esp/anfyas.htm>. Museo de Zoología,
Universidad Católica del Ecuador, Quito,
Ecuador. Accessed on 01 May 2005.
Received May 2005
Accepted July 2005
Published online September 2005
15
... The upper Amazon region, particularly of Ecuador, is distinguished for having a great number of species of Pristimantis frogs (Lynch 1980;Flores & Vigle 1994;Zimmerman & Simberloff 1996;Coloma 2007). Though the upper Amazon rainforest of Ecuador is considered one of the most intensively studied areas in South America (Heyer 1988;Flores & Vigle 1994), the region is nonetheless vast, often scientifically unexplored, and biologically and topographically complex: unidentified specimens, new species, and range extensions of Pristimantis frogs are frequently discovered (recent examples include Cisneros-Heredia 2005, 2006Elmer 2004;Guayasamín et al. 2006;KRE unpubl. data, G. Vigle unpubl. ...
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... The upper Amazon region, particularly of Ecuador, is distinguished for having a great number of species of Pristimantis frogs (Lynch 1980;Flores & Vigle 1994;Zimmerman & Simberloff 1996;Coloma 2007). Though the upper Amazon rainforest of Ecuador is considered one of the most intensively studied areas in South America (Heyer 1988;Flores & Vigle 1994), the region is nonetheless vast, often scientifically unexplored, and biologically and topographically complex: unidentified specimens, new species, and range extensions of Pristimantis frogs are frequently discovered (recent examples include Cisneros-Heredia 2005, 2006Elmer 2004;Guayasamín et al. 2006;KRE unpubl. data, G. Vigle unpubl. ...
Article
Full-text available
We describe three new species of Pristimantis leaflitter frogs from the upper Amazon basin of Ecuador: Pristimantis achuar, Pristimantis altamnis, and Pristimantis kichwarum. Each of these new species was previously considered to be part of a single species, formerly known as Eleutherodactylus ockendeni (Boulenger) morph B. However, analysis of DNA sequences together with examination of the morphology of more than 600 specimens from Ecuador reveals that multiple species were confused under the same name. The morphological differences among the three new species are subtle but consistent: presence or absence of a black canthal stripe and/or supratympanic ridge, snout-vent length, and ventral colouration. The three species are generally allopatric and geographically restricted, although at some localities two of the species occur sympatrically. Describimos tres especies nuevas de ranas del sotobosque de la cuenca Amazónica Ecuatoriana: Pristimantis achuar, Pristimantis altamnis y Pristimantis kichwarum. Estas especies fueron consideradas antes como una sola especie bajo el nombre Eleutherodactylus ockendeni (Boulenger) morfo B. Sin embargo, el análisis de secuencias de ADN y la examinación de la morfología de más que 600 especímenes Ecuatorianos indican que en realidad existen tres especies. Sus diferencias morfológicas son sutiles pero constantes: presencia o ausencia de una raya cantal negra y/o de un pliegue supratimpánico y su coloración ventral. Las tres especies tienen distribuciones alopátricas y distintas aunque en algunas localidades se puede encontrar dos de las tres especies juntas.
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Las herpetofaunas neotropicales se han estudiado en algunos lugares de Centra y Sud América, pero análises intra-regionales no han sido posibles por falta de datos a largo plazo. Un problema de análisis de las comunidades de herpetofauna es la gran distancia geográfica entre los localidades estudiadas. Este tipo de censos no toman en cuenta la heterogenidad del hábitat y no permite el examen de la diversidad regional. En el presente estudio se examinaron cinco comunidades neotropicales de herpetofauna dentro de un ambito geografico pequeno (1600 km2), para determinar si la composición de especies varia microgeográficamente. La investigación fiie realizada en la Provincia de Tambopata, al sureste del Perú. Las cinco localidades se censaron intensivamente durante un periodo de dos años. La herpetofauna de la región consiste de 210 especies, y como resultado de muestreos extensivos, presenta la mayor riqueza que cualquier región conocida del mundo. Las localidades se compararon con el coeficiente de semejanza biogeográfica. Los coeficientes fueron similares entre todos los localidades, pero las diferencias fueron producto de la posici6n con respecto a los dos rios principals de la región y no estuvieron correlacionados con la distancia. También se clasificaron de acuerdo al tipo de microhabitat que utilizon los especies estudiadas. Las localidades difieren en proporción de reptiles y anfibios en los seis de microhábitats definidos. Los resultados de nuestro estudio se compararon con investigaciones previos, en Tambopata y otras regiones. En todos los casos, nuestro estudio identificó más especies que las investigaciones previas. La composición de especies varia a nivel microgeográfico, por lo que recomendamos que en Jo sucesivo se examinen varias localidades dentro de cada región para asi abarcar totalmente las comunidades de herpetofauna que ocurren en selvas intrincadas.
Libro Rojo de Anfibios de Colombia. Bogota. CI-Colombia, ICN-Universidad Nacional de Colombia, Ministerio del Medio Ambiente. Boulenger, G. A. 1902. Descriptions of new batrachians and reptiles from north-western Ecuador
  • Rana Venenosa De Inger
  • Epipedobates Ingeri
Rana venenosa de Inger, Epipedobates ingeri. Pp. 346-349. In J. V. Rueda, J. D. Lynch, and A. Amézquita (eds.), Libro Rojo de Anfibios de Colombia. Bogota. CI-Colombia, ICN-Universidad Nacional de Colombia, Ministerio del Medio Ambiente. Boulenger, G. A. 1902. Descriptions of new batrachians and reptiles from north-western Ecuador. Annals and Magazine of Natural History 7(9):51-57.
Epipedobates bilinguis. Global Amphibian Assessment. Version 15
  • F Castro
  • J V Rueda
  • W Bolívar
  • R A Estupiñan
  • L Coloma
  • S Ron
  • A Almendáriz
Castro, F., J. V. Rueda, W. Bolívar, R. A. Estupiñan, L. Coloma, S. Ron, and A. Almendáriz. 2004. Epipedobates bilinguis. Global Amphibian Assessment. Version 15 October 2004. Electronic Database accessible at <http://www.globalamphibians.org>.
  • D F Cisneros-Heredia
  • Ecuador
  • L A Coloma
  • S Ron
  • K.-H Jungfer
  • B Kubicki
  • F Bolaños
  • G Chaves
  • F Solís
  • R Ibáñez
  • C Jaramillo
  • J Savage
  • G Cruz
  • L D Wilson
  • G Köhler
Cisneros-Heredia, D.F. 2003. Herpetofauna de la Estación de Biodiversidad Tiputini. In S. de la Torre and G. Reck. (eds.) Ecología y Ambiente en el Ecuador. Congr. Ecología y Ambiente, Ecuador país megadiverso. CD. Universidad San Francisco de Quito, Ecuador. Coloma, L. A., S. Ron, K.-H. Jungfer, B. Kubicki, F. Bolaños, G. Chaves, F. Solís, R. Ibáñez, C. Jaramillo, J. Savage, G. Cruz, L. D. Wilson, and G. Köhler. 2004. Agalychnis calcarifer. Global Amphibian Assessment. Version 15 October 2004. Electronic Database accessible at <http://www.globalamphibians.org>.
Amphibian Species of the World: an online reference
  • D R Frost
Frost, D. R. 2004. Amphibian Species of the World: an online reference. Version 3.0. Electronic Database accessible at http://research.amnh.org/herpetology/amphibi a/index.html. American Museum of Natural History, New York, USA. Accessed on 01 May 2005.
Anfibios de Parque Nacional Yasuní, Amazonía ecuatoriana. Version 1.3
  • S R Ron
Ron, S. R. 2001. Anfibios de Parque Nacional Yasuní, Amazonía ecuatoriana. Version 1.3. (2 March 2001) Electronic database accessible at <http://www.bio.utexas.edu/grad/ecuador/web /yasuni/esp/anfyas.htm>. Museo de Zoología, Universidad Católica del Ecuador, Quito, Ecuador. Accessed on 01 May 2005.