Animalia > Chordata > Amphibia > Caudata > Ambystomatidae > Ambystoma > Ambystoma amblycephalum| | Ambystoma amblycephalum (Blunt-headed salamander) | |
Language: Spanish The Blunt-headed Salamander (Ambystoma amblycephalum) is a mole salamander from high elevations (9000 ft above sea level) 15 miles west of Morelia, Michoacán, Mexico. It has both neotenic and terrestrial populations. Neotenic populations are perennibranchiate and retain their fins. Neotenes are very long with extremely short, blunt heads and round eyes. They have relatively short, thick gills. Their coloring is dark brown-gray dorsally, with a lighter gray under-belly. |
The blunt-headed salamander is a metamorphosing species of mole salamander, which means that it can make the full transition from aquatic larval form to a terrestrial adult form in its lifetime. The adult spends the majority of its time on land in a mosaic of natural grasslands and pine-oak forests. It is highly evolutionarily distinct, the family diverging from all other salamanders in the Early Cretaceous period over 140 million years ago, around five million years before the koala and dolphin lineages diverged from their common ancestor. Today, the desiccation, pollution and conversion of former ponds, small reservoirs, and open habitat to row crops, represents the main threat to the species survival. Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) |
| Name |
Countries |
Ecozone |
Biome |
Species |
Report |
Map |
Climate |
Land Use |
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Alta Paraná Atlantic forests |
Brazil, Paraguay, Argentina |
Neotropic |
Tropical and Subtropical Moist Broadleaf Forests |
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Araucaria moist forests |
Brazil |
Neotropic |
Tropical and Subtropical Moist Broadleaf Forests |
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Dry Chaco |
Bolivia, Paraguay, Argentina |
Neotropic |
Tropical and Subtropical Dry Broadleaf Forests |
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Espinal |
Argentina |
Neotropic |
Temperate Grasslands, Savannas, and Shrublands |
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Humid Chaco |
Argentina, Paraguay, Brazil |
Neotropic |
Tropical and Subtropical grasslands, savannas, and shrublands |
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Humid Pampas |
Argentina |
Neotropic |
Temperate Grasslands, Savannas, and Shrublands |
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Low Monte |
Argentina |
Neotropic |
Temperate Grasslands, Savannas, and Shrublands |
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Meseta Central matorral |
Mexico |
Nearctic |
Deserts and Xeric Shrublands |
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Paraná flooded savanna |
Argentina |
Neotropic |
Flooded Grasslands and Savannas |
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Southern Cone Mesopotamian savanna |
Argentina |
Neotropic |
Flooded Grasslands and Savannas |
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Trans-Mexican Volcanic Belt pine-oak forests |
Mexico |
Neotropic |
Tropical and Subtropical Coniferous Forests |
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Alliance for Zero Extinction (AZE) Sites |
| Name |
Location |
Map |
Climate |
Land Use |
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Tacicuaro |
Mexico |
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| Name |
Location |
Endemic |
Species |
Website |
Map |
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Madrean Pine-Oak Woodlands |
Mexico, United States |
No |
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Mesoamerica |
Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama |
No |
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Link to MapMiddle America; Species recognized by , , ITIS Global: The Integrated Taxonomic Information System in  Endangered Status provided by IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2 < www.iucnredlist.org> Downloaded on 11 April 2013. Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 gis.wwfus.org/wildfinderRange map provided by IUCN (International Union for Conservation of Nature), Conservation International & NatureServe. |
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