Status of the eastern short-horned lizard (Phrynosoma douglassii brevirostre) in Alberta /

Abstract

Also, the cooperation and interest of the Laidlaw family has been greatly appreciated over the years. The comments of Kelly Zamudio (University of California, Berkeley), were also pertinent. Leo Dube (Alberta Natural Resource Service, Lethbridge) also provided access to additional information. Finally, thank-you's must also go out to Andy Didiuk (Canadian Wildlife Service),

Multisar : the Milk River Basin project habitat suitability models for selected wildlife management species /

“…It is indigenous to semi-arid, short grass portions of the northern Great Plains and usually found in rather rough terrain (Conant and Collins 1991). The short-horned lizard is small, well camouflaged, and is a "sit and wait" predator (James et al 1997). Population densities in Alberta appear to be low (Powell 1982, Powell andRussell 1993a).…”

A survey of short-horned lizard (Phrynosoma hernandesi hernandesi) populations in Alberta /

“…The status of Short-homed lizards in Alberta was last reviewed by Alberta Natural Resources in 1997 (James et al 1997). At that time, the species was recognized as Phrynosoma douglassii brevirostre or the "Eastern Short-homed lizard"one of a number of subspecies of Short-homed lizards (Reeve 1952, Russell andBauer 1993).…”

“…The most widespread vegetation is a Stipa comata -Bouteloua gracilis (spear grassblue grama grass) community with western wheat grass ( Agropyron smithii) and northern wheat grass (A. dasystachyum) more significant in hummocky moraine areas (AEP 1997). Most of the soils in the dry mixed grass subregion are dark brown chernozems (ANHIC 1999, AEP 1997 The study area for this survey included all historically recorded localities for the species in Alberta, or approximately 28 different sites (James et al 1997). A "site" was considered an isolated section of land or several sections within the vicinity of one another.…”

“…A "site" was considered an isolated section of land or several sections within the vicinity of one another. These sites consist of multiple locations along the South Saskatchewan River, Forty-Mile / Chin Coulee areas, the Manyberries area, and along the Milk River drainage (James et al 1997). Powell and Russell ( 1 992a) had previously classified these areas into three broadly similar habitat types occupied by Short-homed lizards in Alberta, which correspond approximately with the divisions noted by James et al (1997).…”

Overwintering Site Selection by Short-Horned Lizards (Phrynosoma Hernandesi) in Northeastern Colorado

“…It is one of only four North American lizard species inhabiting latitudes higher than 50uN. The ecology of P. hernandesi has been well studied only at its northern-most range terminus in Alberta (James et al, 1997), primarily because of its very limited distribution there and its provincial ''Blue List'' status as a species that may be at risk (Alberta Wildlife Management Division, 1996) and more recently as a species of ''special concern'' under the Species at Risk Act (Committee on the Status of Endangered Wildlife in Canada, Status Assessments, http://www.cosewic.gc.ca/eng/sct0/ index_e. cfm, 2005).…”