Search results
Results from the WOW.Com Content Network
Most toxic amphibians are poisonous to touch or eat. These amphibians usually sequester toxins from animals and plants on which they feed, commonly from poisonous insects or poisonous plants . Except certain salamandrid salamanders that can extrude sharp venom-tipped ribs, [ 1 ] [ 2 ] and two species of frogs with venom-tipped bone spurs on ...
A chytrid-killed frog Chytridiomycosis in Atelopus varius—two sporangia containing numerous zoospores are visible.. Chytridiomycosis (/ k aɪ ˌ t r ɪ d i ə m aɪ ˈ k oʊ s ɪ s / ky-TRID-ee-ə-my-KOH-sis) is an infectious disease in amphibians, caused by the chytrid fungi Batrachochytrium dendrobatidis and Batrachochytrium salamandrivorans.
The generic name is derived from the Greek words batrachos (frog) and chytra (earthen pot), while the specific epithet is derived from the genus of frogs from which the original confirmation of pathogenicity was made (Dendrobates), [5] dendrobatidis is from the Greek dendron, "tree" and bates, "one who climbs", referring to a genus of poison dart frogs.
Batrachochytrium salamandrivorans (Bsal) is a pathogenic chytrid fungus that infects amphibian species. Although salamanders and newts seem to be the most susceptible, some anuran species are also affected. Bsal has emerged recently and poses a major threat to species in Europe and North America.
Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders.
Agalychnis lemur, the lemur leaf frog or lemur frog, is a species of frog in the subfamily Phyllomedusinae. [ 3 ] [ 4 ] It is found in Costa Rica, Panama, and adjacent northwestern Colombia. [ 3 ] It is classed as Critically Endangered and threatened by the fungal disease chytridiomycosis .
These neotropical anuran amphibians exhibit a wide spectrum of coloration and toxicity. [20] Some species in this poison frog family (particularly Dendrobates, Epipedobates, and Phyllobates) are conspicuously coloured and sequester one of the most toxic alkaloids among all living species.
The frog is active during the day. It grows to a size of about 20 millimetres (0.79 in), with males smaller than females. Its base color is black, and it has yellow lines or dots on the back, whereas the belly has bluish or grayish color with interspersed black patches (hence the name "ventrimaculatus"); the color of the belly continues into a netlike pattern on the legs.