ArticlePDF Available

On the distribution and natural history of Hyla miyatai Vigle & Goberdhan-Vigle, 1990 in Amazonian Ecuador

Authors:

Abstract

I report some observations on the natural history of H. miyatai and three additional localities for the species in Ecuador.
dotti is not a frequent but rather an occa-
sional prey of M. cf. trinitatis. Blind snakes,
Leptotyphlops macrolepis PETERS, 1857 and
Liotyphlops sp., have been observed to
abandon their burrows in urban areas after
heavy rains, when the soil is saturated with
water, thus being an easy prey to their pred-
ators (Jesús MANZANILLA, unpublished data
for Aragua State, Venezuela). Perhaps this
could also apply to the case described in the
present paper.
A few minutes after the ophiophagy
observations, and only a few meters up-
stream, we came upon another particular
case of feeding behavior. During the cap-
ture and identification of a female M. cf.
trinitatis (ULABG 5007) found on the leaf
litter nearby the stream (about 3.5 meters
from the water course), she regurgitated
two unidentifiable gelatinous eggs, maybe
of her own species. The environmental
conditions were the same as previously
mentioned. Eggs ingestion by the female
M. cf. trinitatis could be interpreted as a
non-alimentary behavior, some kind of
reproductive competition (see WELLS 1978)
rather than predation. However, more in-
formation is needed to understand this be-
havior.
AKNOWLEDGMENTS: We are thankful to
the following institutions for the support of the
research that collaterally led to this note: Consejo de
Desarrollo Científico y Humanístico, Universidad
Central de Venezuela (CDCH-UCV), Caracas; Con-
sejo de Investigación, Universidad de Oriente (CI-
UDO), Anzoátegui, Venezuela; Consejo de Desarrollo
Científico, Humanístico y Tecnológico, Universidad
de Los Andes (CDCHT-ULA), Mérida, Venezuela, and
Museo Nacional de Ciencias Naturales, Madrid,
España. Thanks to Mario GARCÍA-PARÍS, David
BUCKLEY, Michael JOWERS for their comments, to the
Labotatory of Photography (MNCN, Madrid) for
release of figue 3.
REFERENCES: DUELLMAN, W. & TRUEB, L.
(1986): Biology of amphibians. New York (Mc Graw
Hill Book Co.), 615 pp. GREEN, H. (1997): Snakes, the
evolution of mystery in nature. Berkeley (Univ. of
California Press), 349 pp. MANZANILLA, J. (2001):
Clave ilustrada y descripción de los anfibios del nor-
oeste del Estado Aragua, con comentarios sobre su his-
toria natural. Trabajo de Ascenso, Universidad Central
de Venezuela, Caracas; 291 + 10 (anexos) pp. PIÑERO,
J. & LAMARCA, E. (1995): Hábitos alimentarios de
Nephelobates alboguttatus (Anura: Dendrobatidae) en
una selva nublada andina de Venezuela.- Rev. Biol.
Trop., San José, Costa Rica; 44 (2):827-833. PIÑERO,
J. & DURANT, P. (1993): Dieta y hábitat de una comu-
nidad de anuros de selva nublada en los Andes
Merideños.- Ecotrópicos, Caracas; 6: 1-12. PRADERIO,
M. (1985): Aspectos ecológicos de una población de
Colostethus trinitatis (Dendrobatidae) en la quebrada
de La Guairita, Estado Miranda. Undergraduate The-
sis, Universidad Simón Bolivar, Caracas, Venezuela,
151 pp. WELLS, K. (1978): Courtship and parental be-
havior in a Panamanian poison-arrow frog (Dendro-
bates auratus).- Herpetologica, Lawrence; 34 (2):
148-155. WEYGOLDT, P. (1980): Complex brood care
and reproductive behavior in captive poison-arrow
frogs (Dendrobates auratus).- Herpetologica, Law-
rence; 34: 148-155. ZIMMERMANN, H. (1976): Frosch-
aufzuchten.- Aquarien-Magazin, Stuttgart; 10 (2): 50-
58.
KEY WORDS: Amphibia: Anura: Dendrobati-
dae, Mannophryne cf. trinitatis, feeding habits, ophio-
phagy; Reptilia: Squamata: Leptotyphlopidae, Lepto-
typhlops goudotti as potential prey of Mannophryne,
Venezuela.
SUBMITTED: January 27, 2004
AUTHORS: Jesus MANZANILLA, Instituto de
Zoología Agrícola, Universidad Central de Venezuela,
Maracay, Venezuela and Museo Nacional de Ciencias
Naturales, CSIC, Madrid, España < manzanillaxxi@
hotmail.com >; Enrique LAMARCA, Laboratorio de
Biogeografía, Escuela de Geografía, Universidad de
Los Andes, Mérida Venezuela; Leonardo DESOUSA,
Grupo de Biomedicina Aplicada (GBA), Centro de
Investigaciones en Ciencias de la Salud, Universidad
de Oriente, Anzoátegui, Venezuela.
On the distribution
and natural history of Hyla miyatai
VIGLE & GOBERDHAN-VIGLE, 1990
in Amazonian Ecuador
Several species of tree-frogs inhabit
the western Amazonian lowlands (eg. 45
hylids sympatric at the Tiputini Bio-
diversity Station, Ecuador; CISNEROS-
HEREDIA 2003); but our knowledge on this
diverse hylid fauna is still limited. Hyla
miyatai VIGLE & GOBERDHAN-VIGLE, 1990
was described from the Garzacocha area in
Amazonian Ecuador and has been subse-
quently reported from few additional local-
ities, all widely-separated: Iquitos, Perú
(RODRIGUEZ & DUELLMAN 1994); Ama-
zonas, Colombia (RUIZ-CARRANZA et al.
1996); and Rio Juruá, Brasil (GASCON
1996). No additional records have been re-
ported from Ecuador and our knowledge on
the biology of this species is very poor.
Here I report some observations on the nat-
ural history of H. miyatai and three addi-
tional localities for the species in Ecuador
SHORT NOTE HERPETOZOA 18 (1/2) Wien, 30. Juni 2005 SHORT NOTE 71
based on specimens examined at the
Universidad San Francisco de Quito
(DFCH-USFQ) and at the Fund. Herpetoló-
gica Orcés (FHGO), Ecuador.
Four adult males (DFCH-USFQ 232-
235) were collected from an aggregation,
calling 0-20 cm above water from leaves of
submerged trees (Genipa americana, Rubia-
ceae) in an oxbow lake at the Tiputini Bio-
diversity Station (TBS, 00°38’S, 76°09’W,
ca. 210 m a.s.l.), province of Orellana, on 23
April 2000 (ca. 35 km ESE from the type
locality). One adult male (DFCH-USFQ
391) was collected 5 cm above water at a
forest swamp in the Reserva de Producción
Faunística Cuyabeno, 3.7 km N from the
Finca Cielito Lindo, Lago Agrio - Puerto El
Carmen road (76°12’W, 00°05’S, 290 m
a.s.l.), Sucumbios Province, on 20 July
2000 (ca. 38 km N from the type locality).
Five adult males (FHGO 3313-17) were col-
lected at the Imuya wetlands, between
Aguarico and Lagartococha rivers (00º40’S,
75º20’W, 210 m a.s.l.), Sucumbios province,
on 10-18 May 2001 (ca. 100 km E from the
type locality).
Hyla miyatai seems to be restricted in
Ecuador to the Amazonian lowlands up to at
least 300 m a.s.l., with published records in
the provinces of Sucumbíos and Orellana.
Its habitat preferences include the following
plant formations (sensu PALACIOS et al.
1999): Lowland Evergreen forests flooded
by white water and black water rivers,
Lowland Flooded Palm forest, and Lowland
Lacustrine grasslands. It is likely that H.
miyatai will be found to be fairly common
along the Napo river basin in Ecuador, in
areas where adequate habitat occurs. Hyla
miyatai was sympatric at the oxbow lake of
TBS with Hyla fasciata GÜNTHER, 1858,
Hyla geographica SPIX, 1824, Hyla leuco-
phyllata (BEIREIS, 1783), Hyla triangulum
GÜNTHER, 1869, and Sphaenorhynchus sp;
and at Cuyabeno with Hyla sp. nov. and
Osteocephalus taurinus STEINDACHNER,
1862.
Hyla miyatai was described as having
bright red and yellow markings on the dor-
sum and a pale pink venter, and color
changes have not been reported (VIGLE &
GOBERDHAN-VIGLE 1990; RODRIGUEZ &
DUELLMAN 1994); however, the species is
not always colored like that. Specimens col-
lected at Tiputini and Cuyabeno exhibited
drastic color changes during the day, the red
markings changed to bright metallic golden,
the yellow areas turned into pale pink,
cream or lime green and the pink surfaces
changed to pale yellow or remained pale
pink. These chromatic changes were ob-
served in all specimens during the day, turn-
ing into the bright red/yellow coloration
during the night.
ACKNOWLEDGMENTS: David and Consuelo
ROMO made possible the collection of Hyla miyatai in
TBS and continuously supported my work at TBS.
Margarita BRANDT, Andrés LEÓN, Susana CÁRDENAS
and Carmen PONCE made the fieldwork at Tiputini and
Cuyabeno successful. Ma. Olga BORJA and Daniel
PROAÑO provided assistance during lab work. Greg
VIGLE provided a reprint of his paper. Kelly SWING,
Stella DE LA TORRE and Maria Elena HEREDIA critically
read the manuscript. Maria Elena and Laura HEREDIA,
and the Tiputini Biodiversity Station, Universidad San
Francisco de Quito, provided financial, logistics, and
moral support. The Ministerio del Ambiente of Ecua-
dor provided the research permits to work on Tiputini
and Cuyabeno. I thank these people and institutions for
their support.
REFERENCES: CISNEROS-HEREDIA, D. F.
(2003): Herpetofauna de la Estación de Biodiversidad
Tiputini; pp: 1-21. In: DELATORRE, S. & RECK, G.
(Eds.): Ecología y ambiente en el Ecuador.- Mem. I.
Congr. Ecología y Ambiente. CD. Universidad San
Francisco de Quito, Ecuador. GASCON, C. (1996):
Amphibian litter fauna and river barriers in flooded
and non-flooded Amazonian rain forests.- Biotropica,
Lawrence; 28: 136-140. RODRÍGUEZ, L. O. &
DUELLMAN, W. E. (1994): Guide to the frogs of the
Iquitos region, Amazonian Peru.- Special Publication
Univ. Kansas Nat. Hist. Mus., Lawrence; 22: 1-80.
RUIZ-CARRANZA, P. M. & ARDILA-ROBAYO, M. C. &
LYNCH, J. D. (1996): Lista actualizada de la fauna
amphibia de Colombia.- Revista Acad. Colombiana
Cienc. Exactas, Físicas y Naturales, / República de
Colombia, Ministerio de Educación Nacional,
Bogotá; 20 (77): 365-415. VIGLE, G. O. & GO-
BERDHAN-VIGLE, C. I. (1990): A new species of small
colorful Hyla from the lowland rainforest of
Amazonian Ecuador.- Herpetologica, Emporia; 46
(4): 467-473.
KEY WORDS: Amphibia: Anura: Hylidae:
Hyla miyatai; natural history; chromatic change; geo-
graphical distribution, habitat, new country records,
Orellana province, Sucumbios province, Ecuador
SUBMITTED: July 21, 2004
AUTHOR: Diego F. CISNEROS-HEREDIA,
College of Biological and Environmental Sciences,
Universidad San Francisco de Quito, Ave. Inter-
oceánica y calle Diego de Robles, Campus Cumbayá,
Edif. Maxwell. Casilla Postal 17-12-841 Quito,
Ecuador <diegofrancisco_cisneros@yahoo.com>
72 SHORT NOTE HERPETOZOA 18 (1/2) Wien, 30. Juni 2005 SHORT NOTE
ResearchGate has not been able to resolve any citations for this publication.
Lista actualizada de la fauna amphibia de Colombia.-Revista Acad. Colombiana Cienc. Exactas, Físicas y Naturales A new species of small colorful Hyla from the lowland rainforest of Amazonian Ecuador
  • P M Ardila-Robayo
  • M C Lynch
  • G O Go-Berdhan-Vigle
RUIZ-CARRANZA, P. M. & ARDILA-ROBAYO, M. C. & LYNCH, J. D. (1996): Lista actualizada de la fauna amphibia de Colombia.-Revista Acad. Colombiana Cienc. Exactas, Físicas y Naturales, / República de Colombia, Ministerio de Educación Nacional, Bogotá; 20 (77): 365-415. VIGLE, G. O. & GO- BERDHAN-VIGLE, C. I. (1990): A new species of small colorful Hyla from the lowland rainforest of Amazonian Ecuador.-Herpetologica, Emporia; 46 (4): 467-473.
natural history; chromatic change; geographical distribution, habitat, new country records, Orellana province, Sucumbios province, Ecuador SUBMITTED
  • Diego F Hyla Miyatai
  • Cisneros-Heredia
Hyla miyatai; natural history; chromatic change; geographical distribution, habitat, new country records, Orellana province, Sucumbios province, Ecuador SUBMITTED: July 21, 2004 AUTHOR: Diego F. CISNEROS-HEREDIA, College of Biological and Environmental Sciences, Universidad San Francisco de Quito, Ave. Interoceánica y calle Diego de Robles, Campus Cumbayá, Edif. Maxwell. Casilla Postal 17-12-841 Quito, Ecuador <diegofrancisco_cisneros@yahoo.com>
Amphibian litter fauna and river barriers in flooded and non-flooded Amazonian rain forests Guide to the frogs of the Iquitos region, Amazonian Peru.-Special Publication Univ
  • L O Rodríguez
  • W E Duellman
Amphibian litter fauna and river barriers in flooded and non-flooded Amazonian rain forests.-Biotropica, Lawrence; 28: 136-140. RODRÍGUEZ, L. O. & DUELLMAN, W. E. (1994): Guide to the frogs of the Iquitos region, Amazonian Peru.-Special Publication Univ. Kansas Nat. Hist. Mus., Lawrence; 22: 1-80.
Lista actualizada de la fauna amphibia de Colombia.-Revista Acad. Colombiana Cienc. Exactas, Físicas y Naturales, / República de Colombia, Ministerio de Educación Nacional
  • P M Ruiz-Carranza
  • M C Ardila-Robayo
  • J D Lynch
RUIZ-CARRANZA, P. M. & ARDILA-ROBAYO, M. C. & LYNCH, J. D. (1996): Lista actualizada de la fauna amphibia de Colombia.-Revista Acad. Colombiana Cienc. Exactas, Físicas y Naturales, / República de Colombia, Ministerio de Educación Nacional, Bogotá; 20 (77): 365-415. VIGLE, G. O. & GO-BERDHAN-VIGLE, C. I. (1990): A new species of small colorful Hyla from the lowland rainforest of Amazonian Ecuador.-Herpetologica, Emporia; 46 (4): 467-473.