| Brood Habitats of Sympatric Sage Grouse and Columbian Sharp-Tailed Grouse in Wyoming | KLOTT, JH | 1990 |
KeywordsNo keywords available AbstractHabitats used by sympatric sage grouse (Centrocercus urophasianus) and Columbian sharp-tailed grouse (Tympanuchus phasianellus columbianus) were compared. Sage grouse broods occurred most often
(68%) in sagebrush (Artemisia spp.)-grass and sagebrush-bitterbrush (Purshia tridentata) habitats, whereas sharp-tailed grouse broods occurred most often (73%) in mountain shrub and sagebrush-snowberry (Symphoricarpos oreophilus) habitats. Mountain shrub and sagebrush-snowberry habitats were used by sharp-
tailed grouse more (P < 0.05) than expected based on their availability. Broods of both species used areas
within each habitat with less shrub cover than average for that habitat. Sharp-tailed grouse broods were
associated with mountain snowberry, oniongrass (Melica spp.), and sulphur buckwheat (Eriogonum umbellatum). Sites used by sage grouse contained needle-and-thread (Stipa comata) and desert alyssum (Alyssum
desertorum). AuthorsKLOTT, JH; LINDZEY, FG Year Published1990 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3808905 |
| Feeding Trials with Insects in the Diet of Sage Grouse Chicks | JOHNSON, GD | 1990 |
KeywordsNo keywords available AbstractWe evaluated the influence of insect reductions on survival of sage grouse (Centrocercus urophasianus) chicks with 148 captive individuals aged 2-45 days when treatment began. Captive sage grouse
chicks 21 days old required
insects for optimum development. Quantity of insects in the diet was correlated with sage grouse chick
survival and growth. AuthorsJOHNSON, GD; BOYCE, MS Year Published1990 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3808906 |
| SAGE GROUSE STATUS AND RECOVERY PLAN FOR STRAWBERRY VALLEY, UTAH | WELCH, BL | 1990 |
SAGE GROUSE STATUS AND RECOVERY PLAN FOR STRAWBERRY VALLEY, UTAHKeywordsNo keywords available AbstractSince 1939, an estimated 3,000 sage grouse in Strawberry Valley, UT, have declined to some 180 birds, mainly because of reservoir construction and eradication of big sagebrush to promote livestock forage. A 4-year study of numbers and movements of radio-tagged grouse has provided the basis for a recovery program calling for rejuvenation of big sage-brush and forbs important to grouse, replacement of mating grounds lost to human activities, consideration of sage grouse biology in management decisions, and formation of a sage grouse recovery team. AuthorsWELCH, BL; WAGSTAFF, FJ; WILLIAMS, RL Year Published1990 PublicationUSDA Forest Service Intermountain Research Station Research Paper Locations |
| THE RED QUEEN VISITS SAGE GROUSE LEKS | BOYCE, MS | 1990 |
THE RED QUEEN VISITS SAGE GROUSE LEKSKeywordsNo keywords available AbstractNo abstract available AuthorsBOYCE, MS Year Published1990 PublicationAmerican Zoologist Locations |
| RELATIONSHIPS BETWEEN BLOOD PARASITES, MATING SUCCESS AND PHENOTYPIC CUES IN MALE SAGE GROUSE CENTROCERCUS-UROPHASIANUS | GIBSON, RM | 1990 |
RELATIONSHIPS BETWEEN BLOOD PARASITES, MATING SUCCESS AND PHENOTYPIC CUES IN MALE SAGE GROUSE CENTROCERCUS-UROPHASIANUSKeywordsNo keywords available AbstractNo abstract available AuthorsGIBSON, RM Year Published1990 PublicationAmerican Zoologist Locations |
| Mate choice in lekking sage grouse revisited: the roles of vocal display, female site fidelity, and copying | Gibson, Robert M. | 1991 |
KeywordsNo keywords available AbstractIn lekking sage grouse (Centrocercus urophasianus), females exhibit relatively unanimous mate choice for particular males, but a satisfactory explanation for this unanimity has been elusive. We present analyses of mating distributions from two leks over 4 years that provide evidence for female choice based on differences in vocal display performance of males, the locations at which hens mated in the previous year, and the choices of other females (copying). The unanimity of female choice varied markedly among leks and years in correlation with changes in the mean numbers of hens that mated at the same time and hence the opportunity to copy. The results confirm that hens assess phenotypic traits of males directly but also indicate that the secondary tactics of site fidelity and copying are often important components of female choice. The occurrence of these secondary tactics has three implications: the variance in mating success among lek males will be a poor predictor of the intensity of sexual selection on specific traits; female preferences may generate more clustered dispersions of displaying males than predicted by hotspot settlement models; and direct assessment of males by females may be difficult or costly, a conclusion that supports adaptive models of sexual selection over a nonadaptive Fisherian process. [Behav Ecol 1991;2:165-180] AuthorsGibson, Robert M.; Bradbury, Jack W.; Vehrencamp, Sandra L. Year Published1991 PublicationBehavioral Ecology LocationsDOI10.1093/beheco/2.2.165 |
| Sage Grouse Use of Nest Sites in Southeastern Idaho | CONNELLY, JW | 1991 |
KeywordsNo keywords available AbstractWe investigated nest site selection by sage grouse (Centrocercus urophasianus) in southeastern Idaho from 1987 to 1989. During 3 breeding seasons, 79% of 84 nest sites were found under sagebrush (Artemisia spp.). Nest success averaged 53% for grouse that used sagebrush and 22% for birds that used nonsagebrush nest sites. Total vegetative cover for sagebrush and nonsagebrush nest sites was similar. However, grass height was shorter (P = 0.01) at sagebrush compared to nonsagebrush nest sites. Herbaceous cover was important to nesting sage grouse but the relatively low nest success of nonsagebrush nest sites indicated they might provide less than optimal nesting habitat. AuthorsCONNELLY, JW; WAKKINEN, WL; APA, AD; REESE, KP Year Published1991 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3808984 |
| Preference of Wintering Sage Grouse for Big Sagebrush | WELCH, BL | 1991 |
KeywordsNo keywords available AbstractA study determined sage grouse (Centrocercus urophasianus) preference for 3 subspecies and 9 accessions of big sagebrush (Artemisia tridentata Nutt.). The subspecies were mountain big sagebrush (A. t. ssp. vaseyana Rydb. Beetle), Wyoming big sagebrush (A. t. ssp. wyomingensis Beetle and Young), and basin big sagebrush (A. t. ssp. tridentata Nutt.). Accessions were collected at various sites in Utah and established in a uniform garden. Eleven plants for each accession or 33 plants for each subspecies were planted at random on a 2.13-m grid for a total of 99 plants. An enclosure with a top was constructed. Six birds were captured and placed in the garden. Preference was measured by the number of bites taken during the study and by estimates of percentage of leaves eaten at the end of the study. Results, by order of preference, were mountain big sagebrush, Wyoming big sagebrush, and basin big sagebrush. Within the most preferred subspecies there was distinct preference among accessions as measured by bite counts. When the forage of preferred subspecies or accessions was exhausted, the birds readily ate other subspecies or accessions. AuthorsWELCH, BL; WAGSTAFF, FJ; ROBERSON, JA Year Published1991 PublicationJournal of Range Management LocationsDOI10.2307/4002745 |
| GEOGRAPHIC-VARIATION AMONG SAGE GROUSE IN COLORADO | HUPP, JW | 1991 |
GEOGRAPHIC-VARIATION AMONG SAGE GROUSE IN COLORADOKeywordsNo keywords available AbstractNo abstract available AuthorsHUPP, JW; BRAUN, CE Year Published1991 PublicationWilson Bulletin Locations |
| Sage Grouse Nest Locations in Relation to Leks | WAKKINEN, WL | 1992 |
KeywordsNo keywords available AbstractWe tested 2 predictions about the locations of nests of lek-forming species to evaluate a guideline developed to protect sage grouse (Centrocercus urophasianus) nesting habitat. Sage grouse (n = 37) in southeastern Idaho did not attempt to nest midway between leks, as 1 hypothesis suggests. Neither was there evidence indicating that areas surrounding a lek are important for nesting, as a second hypothesis suggests. Because distribution of sage grouse nests was random with respect to lek location, nesting habitat protection based on either hypothesis affords no special protection for nests. AuthorsWAKKINEN, WL; REESE, KP; CONNELLY, JW Year Published1992 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3808838 |
