''Colostethus agilis'' is a species of

frog A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" '' Triadobatrachus'' is ...

in the family

Dendrobatidae Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the family Dendrobatidae which are native to tropical Central and South America. These species are ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to Colombia. Its natural

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

s are subtropical or tropical moist

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucia ...

s and

river A river is a natural flowing watercourse, usually freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the ...

Description

''Colostethus agilis'' grows to a snout-to-vent length of about 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 Iris most often refers to: *Iris (anatomy), part of the eye *Iris (mythology), a Greek goddess * ''Iris'' (plant), a genus of flowering plants * Iris (color), an ambiguous color term Iris or IRIS may also refer to: Arts and media Fictional ent ...

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 ''Colostethus'' is a genus of poison dart frogs native to Central and South America, from Panama south to Colombia, Ecuador, and northern Peru. Their common name is rocket frogs, but this name may refer to frogs in other genera and families, foll ...

'' that have fully webbed hind feet, the others being '' Colostethus chocoensis'', '' Colostethus fuliginosus'', '' Colostethus palmatus'' and '' Colostethus vergeli''.

Distribution

''Colostethus agilis'' is endemic to Colombia, where it is found in the western parts of the Cordillera Occidental at heights between above sea level. Its range extends from La Serrania de los Paraguas southwards to the

Munchique National Natural Park The Munchique National Natural Park ( es, Parque Nacional Natural Munchique) is a national park located in the Cauca Department in the Cordillera Occidental range in the Andean Region of Colombia. There are 30 streams and rivers, and 40 waterf ...

, and it inhabits the floors of moist forests and the streams that flow through them.

Status

The IUCN Red List of Threatened Species includes ''Colostethus agilis'' as "

Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

". Its range probably extends to less than and its numbers may be declining gradually, but it has shown some resilience and occurs in both

old-growth forest An old-growth forestalso termed primary forest, virgin forest, late seral forest, primeval forest, or first-growth forestis a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological featur ...

s and

secondary forest A secondary forest (or second-growth forest) is a forest or woodland area which has re-grown after a timber harvest or clearing for agriculture, until a long enough period has passed so that the effects of the disturbance are no longer evident. ...

s. The main threats it faces are

forestry Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. ...

activities, the conversion of woodland to

agricultural Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled peopl ...

uses (including illegal crops) and

pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...

of the streams in which it is believed to breed.

References

{{Taxonbar, from=Q1934706

Agilis agilis Eisenbahngesellschaft (railway company) and agilis Verkehrsgesellschaft (transportation company) operate railway passenger services in Bavaria. The companies do not capitalise their names. They are subsidiaries of BeNEX GmbH and the Hamb ...

Amphibians of Colombia Amphibians of the Andes Amphibians described in 1985 Taxonomy articles created by Polbot