These fields have low plant species diversity and lack the shrubs and forbs lo support strong populations of pronghorn antelope (Antilocapra americana), greater sage grouse (Centrocercus urophasianus
) and Baird's sparrow (Ammodramus bairdii) as well as many other species compared to native grasslands or sagebrush steppe (Reynolds and Trost, 1980; Urness, 1986; Rotder et al., 2015).
scotica: 3 and Bonasa bonasia: 2; North America: Centrocercus urophasianus
: 3, Tympanuchus phasianellus: 1).
Sage-Grouse (Centrocercus urophasianus
) as Threatened or Endangered, 75
(5) For example, state and federal partnerships with private landowners in 11 western states (Oregon, Washington, California (northern), Nevada, Idaho, Montana, Wyoming, Colorado, Utah, North and South Dakota) are aimed at helping keep the greater sage-grouse (Centrocercus urophasianus
), from being federally listed under the Endangered Species Act (ESA), consistent with the decision in 2015.
For example, Sage Grouse (Centrocercus urophasianus
) is strongly associated with sagebrush (Artemesia tridentata), Chukar (Alectoris chukar) is associated with cheatgrass (Bromus tectorum), and Chestnut-backed Chickadees (Parus rufescens) appears to follow the distribution of Douglas-fir (Pseudotsuga menziesii) in California .
West Nile virus (WNV) spread to the US western plains states in 2003, when a significant mortality event attributed to WNV occurred in greater sage-grouse (Centrocercus urophasianus
Our objectives are to report on (1) the historical distribution of sage-grouse in New Mexico based on the fossil record and the published literature and (2) the well-intentioned releases of greater sage-grouse (Centrocercus urophasianus
) in attempts to establish that species in areas within the state where sage-grouse had been extirpated or where suitable habitat was believed to exist.
A second concern is that sagebrush is slow to recover following fire and consequently available forage, nesting and brooding habitat for sage grouse (Centrocercus urophasianus
) are negatively affected (Baker 2006; Meinke et al.
(2009) modeled the potential for sage grouse (Centrocercus urophasianus
) leks to be lost as a result of different levels of predicted oil and gas development.
Predictive modelling and mapping sage grouse (Centrocercus urophasianus
) nesting habitat using Maximum Entropy and a long-term dataset from Southern Oregon.
Current examples of efforts to stabilize populations to avoid the need to list include the greater sage grouse (Centrocercus urophasianus
), the New England cottontail (Sylvilagus transitionalis), and the eastern population of the gopher tortoise (Gopherus polyphemus).
(91.) 12-Month Finding for a Petition to List the Washington Population of Western Sage Grouse (Centrocercus urophasianus
phaios), 66 Fed.