Barred tiger salamander

Barred tiger salamander
Hectonichus · CC BY-SA 4.0 · source
Name	Barred tiger salamander
Status	VU
Status system	IUCN3.1
Genus	Ambystoma
Species	mavortium
Authority	(Baird, 1850)

Barred tiger salamander The barred tiger salamander is a large mole salamander native to parts of North America, notable for its distinctive barred pattern and variable life history. It is a subject of interest in herpetology, conservation biology, and wildlife management, and appears in studies connected to institutions such as the Smithsonian Institution, the Nature Conservancy, and the United States Fish and Wildlife Service.

Taxonomy and Naming

The barred tiger salamander is classified within the genus Ambystoma and was first described by Spencer Fullerton Baird in 1850. Taxonomic treatments have been influenced by work at museums like the American Museum of Natural History, the Natural History Museum, London, and the California Academy of Sciences, and revised through molecular studies by researchers associated with universities such as Harvard University, University of California, Berkeley, and University of Toronto. Historic taxonomic debates involved comparisons with species described by 19th-century naturalists including John James Audubon and institutions like the Royal Society. Nomenclatural decisions follow codes promulgated by the International Commission on Zoological Nomenclature.

Description

Adults are robust salamanders with broad heads, stocky limbs, and skin patterned with dark bars on a lighter ground color; morphological descriptions have been used in field guides published by organizations such as the Audubon Society, the National Geographic Society, and the Royal Ontario Museum. Typical body length ranges up to about 20 cm, and diagnostic characters are detailed in monographs from the Smithsonian Institution Scholarly Press and regional floras and faunas compiled by the Missouri Botanical Garden and state natural history surveys. Comparative anatomy studies referencing specimens in the British Museum and the Field Museum help distinguish this species from sympatric salamanders catalogued by the Canadian Museum of Nature.

Distribution and Habitat

The barred tiger salamander occupies grasslands, prairies, and open woodlands across parts of the United States and northern Mexico; biogeographic patterns have been mapped in atlases produced by the United States Geological Survey, the Mexican Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, and academic groups at the University of Kansas. Historic range descriptions appear in regional accounts associated with the Rocky Mountain Biological Laboratory and the Yosemite National Park inventory projects. Key habitats include seasonal ponds and agricultural landscapes surveyed by the Natural Resources Conservation Service and monitored by state agencies such as the California Department of Fish and Wildlife and the Texas Parks and Wildlife Department.

Behavior and Ecology

Barred tiger salamanders are fossorial and often use burrows created by mammals such as those studied in research by the National Park Service and university programs at Kansas State University and Oklahoma State University. Their ecology has been examined in ecological journals affiliated with institutions like Duke University, University of Michigan, and the University of Florida, linking amphibian activity to ecosystem processes studied by the Environmental Protection Agency and the World Wildlife Fund. Predator–prey interactions include predators recorded by the Smithsonian National Zoo and diets documented in work from the Cornell Lab of Ornithology and fisheries research at the United States Department of Agriculture.

Reproduction and Life Cycle

Breeding is typically explosive in seasonal ponds; embryology and larval development have been subjects of research at centers such as the Marine Biological Laboratory, Scripps Institution of Oceanography, and university departments at Stanford University. Studies of metamorphosis and paedomorphosis reference classic developmental biology literature from laboratories at University of Virginia and Princeton University, and field reproductive surveys appear in reports associated with the National Science Foundation and regional conservation bodies like the Canadian Wildlife Service.

Conservation and Threats

Populations face threats from habitat loss documented by the United Nations Environment Programme, road mortality studies coordinated by the Transportation Research Board, and disease investigations involving pathogens studied by the Centers for Disease Control and Prevention and the American Veterinary Medical Association. Conservation actions are informed by status assessments from the International Union for Conservation of Nature, recovery planning by the United States Fish and Wildlife Service, and habitat restoration projects supported by the Nature Conservancy and regional land trusts. Climate change impacts have been modeled in collaboration with research teams at NASA and the Intergovernmental Panel on Climate Change.

Interaction with Humans

Human interactions include use as subjects in educational programs at institutions such as the Smithsonian National Museum of Natural History and public outreach by the National Audubon Society and state parks. Regulations affecting the species are enforced by authorities like the U.S. Fish and Wildlife Service and provincial wildlife agencies, and community science initiatives tracking salamander observations are hosted on platforms associated with the Linnaean Society and biodiversity portals maintained by the Global Biodiversity Information Facility. Conservation partnerships often involve universities such as University of California, Davis and NGOs like Conservation International.

Category:Ambystoma Category:Amphibians of North America