Search results
Results from the WOW.Com Content Network
Once fully metamorphosed, they leave the water and live a terrestrial life, when they are known as "efts." [12] [13] Only when the eft reaches adulthood will the North American species return to live in water, rarely venturing back onto the land. Conversely, most European species live their adult lives on land and only visit water to breed. [14]
Eurycea longicauda, commonly known as the long-tailed salamander [4] or longtail salamander, [5] is a species of lungless salamander native to the Appalachian Region of the eastern United States. It is a " cave salamander " that frequents twilight zones of caves and also inhabits springs and surrounding forest.
The holotype for Desmognathus fuscus does not exist; Rafinesque (1820) described the type locality to be in the northern parts of the state of New York in small brooks. [6] [7] The spotted dusky salamander (D. conanti) and the flat-headed salamander (D. planiceps) were described in the 1950s but were later thought to be synonymous with the northern dusky salamander, but further studies have ...
The salamanders prefer to live in streams of small width (on average, 6.39 m or 21 ft across), quick flow, and little depth (on average, 1.07 m or 3 ft 6 in deep). [33] Water temperature varies depending on season, with typical range at low elevation sites being from 10 to 25 °C (50 to 77 °F) and at high elevation sites from 3 to 20 °C (37 ...
The skin of salamanders, in common with other amphibians, is thin, permeable to water, serves as a respiratory membrane, and is well-supplied with glands. It has highly cornified outer layers, renewed periodically through a skin shedding process controlled by hormones from the pituitary and thyroid glands.
The species is under pressure from habitat destruction (conversion of forests to pasture and residential areas) and water pollution. [1] Triphenyltin, a common pesticide used in pecan, potatoes, beets, celery, coffee, and rice agriculture was found to cause streamside salamander larva mortality of 90% if present at concentrations above 5 μg/L ...
[15] [16] The common mudpuppy never leaves its aquatic environment and therefore does not undergo morphogenesis; however, many salamanders do and develop differentiated teeth. [17] Aquatic salamander teeth are used to hinder escape of the prey from the salamander; they do not have a crushing function. [17] This aids the salamander when feeding.
Additionally, between 1982 and 2010, Lake Pátzcuaro lost a quarter of its total volume and water temperatures have significantly increased, further limiting the salamander's habitat. This is the result of siltation which has decreased the lake's depth by an estimated 2.6 m (8.5 ft).