Canis lupus baileyi

Canis lupus baileyi
Clark, Jim (U.S. Fish and Wildlife Service) · Public domain · source
Name	Mexican wolf
Status	EN
Genus	Canis
Species	Canis lupus
Subspecies	baileyi
Authority	Nelson & Goldman, 1929

Contents

Canis lupus baileyi is the Mexican wolf, a critically important subspecies of Canis lupus historically native to the Sierra Madre Occidental, Sonoran Desert, and Chihuahuan Desert regions. It has been central to conservation debates involving agencies such as the U.S. Fish and Wildlife Service, Arizona Game and Fish Department, and Mexican Secretariat of the Environment and Natural Resources. Renowned institutions including the Arizona-Sonora Desert Museum, Sevilleta National Wildlife Refuge, and Endangered Species Act programs have been pivotal in recovery actions.

Taxonomy and Nomenclature

Described by Edward William Nelson and Edward Alphonso Goldman in 1929, the taxonomic placement of this subspecies has invoked comparisons with other taxa referenced by researchers at the Smithsonian Institution, American Society of Mammalogists, and International Union for Conservation of Nature. Debates over subspecific delineation involved morphological analyses from collections at the National Museum of Natural History and genetic studies led by teams at University of California, Davis, Texas A&M University, and the University of New Mexico. Nomenclatural treatment in listing decisions has been influenced by rulings and guidance from the U.S. Fish and Wildlife Service and policy interpretations under the Endangered Species Act.

Adult individuals were characterized in early descriptions housed at the Field Museum of Natural History and compared against specimens from the Canadian Museum of Nature and American Museum of Natural History. Morphological traits used in identification were measured and published in journals associated with the Society for Conservation Biology, Journal of Mammalogy, and articles authored by researchers affiliated with New Mexico State University and University of Arizona. Identification protocols have been applied by staff from Blue Range Wolf Recovery Area management teams, Hettinger Wildlife Office, and veterinarians at Wedge Oak Veterinary Hospital during captive breeding.

Historic range accounts were compiled from records by explorers linked to the Spanish colonial period, surveys archived at the Bureau of Land Management, and reports integrated by the New Mexico Department of Game and Fish. Contemporary reintroduction efforts targeted regions within Apache National Forest, Gila National Forest, Blue Range Primitive Area, and cross-border zones near Chihuahua and Sonora. Habitat models have drawn upon landscape data from the United States Geological Survey, climate analyses by the National Oceanic and Atmospheric Administration, and remote sensing products used by researchers at NASA. Collaborations with the Comisión Nacional de Áreas Naturales Protegidas informed cross-boundary planning.

Studies published with contributions from biologists at Colorado State University, University of Colorado Boulder, and University of Montana documented pack dynamics, prey preferences, and territoriality in ecosystems shared with species such as the Pronghorn, Elk, Mule deer, and interactions near populations of Cougar and Black bear. Radio-telemetry programs utilized equipment from VECTRONIC Aerospace, and analytical methods referenced statistical frameworks from the Ecological Society of America. Behavioral research informed conflict mitigation strategies used by grazing associations coordinated with the National Cattlemen's Beef Association and local ranching groups in Grant County, New Mexico and Apache County, Arizona.

Listing actions by the U.S. Fish and Wildlife Service under the Endangered Species Act and recovery planning involving the Mexican Wolf Recovery Team led to captive-breeding programs at facilities like the Sevilleta National Wildlife Refuge captive-breeding center, Endangered Wolf Center, Wosseman Ranch, and cooperative breeding efforts with White Sands National Park staff. International coordination included stakeholders from the Government of Mexico, conservation NGOs such as the Defenders of Wildlife, Wildlife Conservation Society, The Peregrine Fund, and funding partners like the National Fish and Wildlife Foundation. Reintroduction milestones were reported in coordination with the Arizona Game and Fish Department and monitored using protocols developed by U.S. Geological Survey scientists.

Threat assessments by teams at the University of Arizona and policy analyses by the Congressional Research Service highlighted mortality sources including illegal poaching, vehicle collisions on corridors managed by the Federal Highway Administration, and lethal control authorized under state-level permits from agencies such as the New Mexico Department of Game and Fish. Conflicts with livestock producers engaged organizations including the Ranchers Stewardship Alliance, county extension offices like New Mexico State University Cooperative Extension, and mitigation programs funded by the Natural Resources Conservation Service.

Ongoing challenges have been addressed in workshops hosted by the North American Wildlife and Natural Resources Conference, research symposia at the Society for Conservation Biology annual meeting, and planning sessions convened by the Interagency Mexican Wolf Recovery Team. Genetic introgression, inbreeding depression, and adaptive potential have been subjects of genomic studies at Cornell University, University of California, Santa Cruz, and industry collaborations with Illumina. Policy disputes have involved litigation in federal courts such as the United States District Court for the District of Arizona and consultations under the National Environmental Policy Act.

Category:Wolves Category:Endangered fauna of North America