Description
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İngilizce
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AmphibiaWeb articles tarafından sağlandı
Colostethus agilis is a small frog but moderately sized for a Colostethus, attaining a SVL averaging 24 mm for males and 28 mm for females. Males have a dilated third digit. The head is wider than it is long but not as wide as the body. Snout truncated in dorsal view and projects beyond the anterior extremity of the upper labial. Nostrils are directed laterally. The ventral portion of tympanum is visible while the dorsal portion is covered by the supratympanic fold. Dorsal and gular skin is smooth. Males have vocal slits positioned posterolaterally to the tongue. Ulnar tubercles absent. Discs on toes are round and smaller than those on the hands. When adpressed anteriorly, the ankle reaches a point near the anterior portion of the orbit. Colostethus agilis is also characterized by a a dorso-and-ventrolateral row of warts/bumps and a row of blotches laterally. In life, this Colostethus is characterized by the presence of olive dorsal coloration with brown blotches or brown dorsal coloration with black blotches. The upper lip has white spots. Thighs and inguinal region have pale whitish-yellow blotches. Iris is brown with golden specks. Few members of the genus Colostethus have much more than basal interdigital webbing on the hind feet. Even rarer are those which have extensive, almost complete, interdigital webbing. At the time of its description, Colostethus agilis was one of only five Colostethus with such extensive webbing (the other four species were: C. chocoensis, C. fuliginosus, C. palmatus, and C. vergeli) (Lynch and Ruiz-Carranza 1985).
Lynch, J. D., and Ruiz-Carranza, P. M. (1985). ''Una nueva especie de Colostethus (Amphibia: Dendrobatidae) de la Cordillera Occidental de Colombia.'' Lozania, 54, 1-6.
Distribution and Habitat
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İngilizce
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AmphibiaWeb articles tarafından sağlandı
Colostethus agilis is known from the western Cordillera Occidental of Colombia (Departamentos del Cauca y Valle) at elevations between 2190 and 2600 m.
Life History, Abundance, Activity, and Special Behaviors
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Individuals were found active during the day and not active at night. Adults were found at the edge of breaks in the cloud forests, where adults and juveniles were very common.
Colostethus agilis
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wikipedia EN tarafından sağlandı
Colostethus agilis is a species of frog in the family Dendrobatidae. It is endemic to Colombia. Its natural habitats are subtropical or tropical moist montane forests and rivers.
Description
Colostethus agilis grows to a snout-to-vent length of about 25 mm (1 in) with females being slightly larger than males. The head is wide and the snout short. The tympanum, situated just behind the eye, is half covered by a fold of skin. There are some white specks on the upper lip and the iris is bronze with yellow specks. The dorsal and lateral surfaces have several longitudinal rows of warts and the general colour is olive or deep brown with darker coloured blotches. The ventral surface and the underside of the thighs are pale with yellowish blotches. There are discs on the tips of the fingers of the fore feet and smaller ones on the hind feet. Colostethus agilis is one of only five species of Colostethus that have fully webbed hind feet, the others being Colostethus chocoensis, Colostethus fuliginosus, Colostethus palmatus and Colostethus vergeli.[2]
Distribution
Colostethus agilis is endemic to Colombia, where it is found in the western parts of the Cordillera Occidental at heights between 2,190 and 2,600 metres (7,190 and 8,530 ft) above sea level.[2] Its range extends from La Serrania de los Paraguas southwards to the Munchique National Natural Park, and it inhabits the floors of moist forests and the streams that flow through them.[1]
Status
The IUCN Red List of Threatened Species includes Colostethus agilis as "Endangered". Its range probably extends to less than 5,000 square kilometres (1,900 sq mi) and its numbers may be declining gradually, but it has shown some resilience and occurs in both old-growth forests and secondary forests. The main threats it faces are forestry activities, the conversion of woodland to agricultural uses (including illegal crops) and pollution of the streams in which it is believed to breed.[3]
References
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia authors and editors
Colostethus agilis: Brief Summary
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İngilizce
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wikipedia EN tarafından sağlandı
Colostethus agilis is a species of frog in the family Dendrobatidae. It is endemic to Colombia. Its natural habitats are subtropical or tropical moist montane forests and rivers.
- lisans
- cc-by-sa-3.0
- telif hakkı
- Wikipedia authors and editors
