Granular salamander

The granular salamander or ajolote (Ambystoma granulosum) is a species of mole salamander in the Ambystomatidae family. It is found only in Mexico. Its natural habitats are subtropical or tropical high-altitude grassland, freshwater marshes, intermittent freshwater marshes, and ponds. It is threatened by habitat loss and overcropping along with the scaling of their skins.

Granular Salamander
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Ambystomatidae
Genus: Ambystoma
Species:
A. granulosum
Binomial name
Ambystoma granulosum

Early Life

Ambystoma granulosum face high mortality rates in early stages of development in nature due to insufficient nutrition and anthropogenic factors such as contamination and habitat degradation. Larval Ambystoma granulosum display distinct changes in feeding patterns with increasing age, preferring smaller prey (e.g., A. glabra) in early larval stages and larger prey (e.g., S. vetulus and D. pulex) in later weeks. Low natural availability of prey in the wild lead to food deficiencies and increased early stage mortality.[2]

Distribution

Ambystoma granulosum is endemic to a small area of central Mexico close to and just to the north west of Toluca in Mexico State, at an altitude of around 3,000 m (9,843 ft). Its population size is unknown.[3]

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References
  1. IUCN SSC Amphibian Specialist Group. (2020). "Ambystoma granulosum". IUCN Red List of Threatened Species. 2020: e.T59058A53973911. Retrieved 12 July 2020.
  2. Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, Av. de Los Barrios No.1, AP 314, 54090, Los Reyes, Tlalnepantla, State of Mexico, Mexico; Sarma, S.S.S.; Fuentes-Barradas, A. E.; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, Av. de Los Barrios No.1, AP 314, 54090, Los Reyes, Tlalnepantla, State of Mexico, Mexico; Nandini, S.; Laboratory of Aquatic Zoology, National Autonomous University of Mexico, Campus Iztacala, Av. de Los Barrios No.1, AP 314, 54090, Los Reyes, Tlalnepantla, State of Mexico, Mexico; Chaparro-Herrera, D.J.; Laboratorio de Microbiología Ambiental. UIICSE, UNAM-FES Iztacala, Av. de Los Barrios, No. 1, Los Reyes, Tlalnepantla Edo Méx., CP 54090, Mexico (2017-11-01). "Feeding behaviour of larval Ambystoma granulosum (Amphibia: Caudata)". Journal of Environmental Biology. 38 (6(SI)): 1241–1248. doi:10.22438/jeb/38/6(SI)/09.CS1 maint: multiple names: authors list (link)
  3. "Ambystoma granulosum Taylor, 1944". Globally Threatened Amphibian Species. Amphibians.org. Archived from the original on 2014-05-03. Retrieved 2014-05-03.


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