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Anas diazi

Ridgway, 1886

Mexican Duck

G5Secure Found in 8 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.103691
Element CodeABNJB10062
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVertebrate Animal
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomAnimalia
PhylumCraniata
ClassAves
OrderAnseriformes
FamilyAnatidae
GenusAnas
Synonyms
Anas platyrhynchos diaziRidgway, 1886
Other Common Names
Pato Mexicano (ES)
Concept Reference
American Ornithologists' Union (AOU). 1957. The AOU check-list of North American birds, 5th ed. Port City Press, Inc., Baltimore, MD. 691 pp.
Taxonomic Comments
Formerly (e.g., AOU 1983, 1998) considered conspecific with A. platyrhynchos, although prior to this (until AOU 1973) the 2 were treated as separate species. Newly separated based on assortative mating in the narrow contact zone between these species (Bellrose 1976, Hubbard 1977, Brown 1985) and genomic data that indicate restricted gene flow between them (Lavretsky et al. 2015, 2019a) (AOS 2020).
Conservation Status
Review Date1996-11-21
Change Date1996-11-21
Range Extent Comments
Breeds from southeastern Arizona, southern New Mexico, and west-central Texas south in the highlands of Mexico to Jalisco, Michoacán, México, Distrito Federal, Tlaxcala, and Puebla. Winters in the breeding range and east to southern Coahuila, San Luis Potosí, and eastern Tamaulipas. Nonbreeding birds occur casually throughout the year north through much of Colorado and in Utah north to Great Salt Lake, west to the Lower Colorado River Valley, and east to the Lower Rio Grande Valley. Accidental west to San Luis Obispo County, California, north to Albany County, Wyoming, and east to southwestern Nebraska. Difficulties distinguishing this species from A. fulvigula may be decreasing detection east of its usual range (AOS 2020).
Ecology & Habitat
Palustrine Habitats
HERBACEOUS WETLANDFORESTED WETLANDRiparian
Other Nations (1)
United StatesNNR
ProvinceRankNative
New MexicoSNRYes
ArizonaS4Yes
NevadaSNAYes
TexasSNRYes
Roadless Areas (8)
Arizona (5)
AreaForestAcres
Black CrossTonto National Forest5,966
GaliuroCoronado National Forest28,333
Painted BluffsApache-Sitgreaves National Forests43,118
PinalenoCoronado National Forest130,920
TumacacoriCoronado National Forest44,594
New Mexico (3)
AreaForestAcres
Contiguous To Black & Aldo Leopold WildernessGila National Forest111,883
Contiguous To Gila Wilderness & Primitive AreaGila National Forest79,049
Meadow CreekGila National Forest34,167
References (10)
  1. American Ornithological Society (AOS). Chesser, R. T., S. M. Billerman, K. J. Burns, C. Cicero, J. L. Dunn, A. W. Kratter, I. J. Lovette, N. A. Mason, P. C. Rasmussen, J. V. Remsen, Jr., D. F. Stotz, and K. Winker. 2020. Sixty-first Supplement to the American Ornithological Society’s Check-list of North American Birds. The Auk 137(3):1-24.
  2. American Ornithologists' Union (AOU). 1957. The AOU check-list of North American birds, 5th ed. Port City Press, Inc., Baltimore, MD. 691 pp.
  3. American Ornithologists' Union (AOU). 1983. Check-list of North American Birds, 6th edition. Allen Press, Inc., Lawrence, Kansas. 877 p.
  4. American Ornithologists' Union (AOU). 1998. Check-list of North American birds. Seventh edition. American Ornithologists' Union, Washington, D.C. [as modified by subsequent supplements and corrections published in <i>The Auk</i>]. Also available online: http://www.aou.org/.
  5. Bellrose, F.C. 1976. Ducks, geese and swans of North America. Stackpole Books, Harrisburg, PA.
  6. Brown, D. E. 1985. Arizona Wetlands and Waterfowl. University of Arizona Press, Tucson, AZ, USA.
  7. Hubbard, J. P. 1977. The biological and taxonomic status of the Mexican Duck. Bulletin of the New Mexico Department of Game and Fish 16, Albuquerque, NM, USA.
  8. Lavretsky, P., J. M. DaCosta, B. E. Hernández-Baños, A. Engilis, Jr., M. D. Sorenson, and J. L. Peters. 2015. Speciation genomics and a role for the Z chromosome in the early stages of divergence between Mexican Ducks and Mallards. Molecular Ecology 24:5364–5378.
  9. Lavretsky, P., J. M. DaCosta, M. D. Sorenson, K. G. McCracken, and J. L. Peters. 2019a. ddRAD-seq data reveal significant genome-wide population structure and divergent genomic regions that distinguish the Mallard and close relatives in North America. Molecular Ecology 28:2594–2609.
  10. Perez-Arteaga, A., K. J. Gaston, and M. Kershaw. 2002. Population trends and priority conservation sites for Mexican Duck Anas diazi. Bird Conservation International 12: 35-52.