Open Access. Powered by Scholars. Published by Universities.®
- Keyword
Articles 1 - 3 of 3
Full-Text Articles in Life Sciences
Strutting Sounds And Strutting Posturing Of Two Utah Sage Grouse Populations, United States Department Of Agriculture, Forest Service
Strutting Sounds And Strutting Posturing Of Two Utah Sage Grouse Populations, United States Department Of Agriculture, Forest Service
Wildlife Conservation and Management
Sound and video tape recordings and still pictures were taken of two populations of strutting male sage grouse (Centrocercus urophasianus). The two populations studied were from the Strawberry Valley and Parker Mountains. Sixteen elements of sounds were identified in the strutting sequence. These elements were the same for both populations. Video tape and still picture analysis revealed that both populations were similar in posturing during the strutting sequence. We concluded that the Parker Mountains sage grouse population is suitable in terms of breeding display behavior to augment the Strawberry Valley population. Sexual compatibility would need to be determined in future …
Birds Of A Great Basin Sagebrush Habitat In East-Central Nevada, United States Department Of Agriculture, Forest Service
Birds Of A Great Basin Sagebrush Habitat In East-Central Nevada, United States Department Of Agriculture, Forest Service
Wildlife Conservation and Management
Breeding bird populations ranged from 3.35 to 3.48 individuals/ha over a 3-year study conducted from 1981 to 1983. Brewer's sparrows, sage sparrows, sage thrashers, and black-throated sparrows were numerically dominant. Horned larks and western meadowlarks were less common. Results are compared with bird populations in Great Basin sagebrush habitats elsewhere in the United States.
Bird Populations In And Adjacent To A Beaver Pond Ecosystem In Idaho, United States Department Of Agriculture, Forest Service
Bird Populations In And Adjacent To A Beaver Pond Ecosystem In Idaho, United States Department Of Agriculture, Forest Service
Wildlife Conservation and Management
We compared breeding bird populations and community organization between a beaver pond habitat dominated by willows (Salix spp.) and an adjacent nonwillow riparian habitat on Summit Creek in east-central Idaho. For the previous 14 years both habitats had been protected from livestock grazing by a fenced excloser (122-ha). Bird populations were determined by spot-mapping on 9-ha plots in spring 1989. Structural (physiognomic) differences in vegetation between the two habitats and the availability of impounded water on the beaver pond site were reflected in associated breeding bird populations. Total bird density in the beaver pond habitat was three times that of …