7,660 results ·
Family level averages for the Recombinant Inbred Lines (Colorado)
This file contains family-level average trait values for the recombinant inbred lines (RILs) in the Colorado garden. Columns include: family, leaf number at flowering (standardized to a mean of 0 and standard deviation of 1), height at flowering (standardized to a mean of 0 and standard deviation of
Carpenter_Meadow_transect_2010
This file contains phenotypic and fitness data on naturally-recruiting Boechera stricta plants in 5 transects. Jill Anderson collected these data at the Carpenter Meadow site in 2010. The data file was created in Text Wrangler.
Carpenter_Meadow_transect_2011
This file contains phenotypic and fitness data on naturally-recruiting Boechera stricta plants in 5 transects. Jill Anderson collected these data at the Carpenter Meadow site in 2011. The data file was created in Text Wrangler.
Carpenter_Meadow_experiment
This file contains data from the experiment at Carpenter Meadow to assess natural selection on flowering in local genotypes. Jill Anderson collected data in the field in 2010. Analyses included size at planting (number of leaves) and cohort as fixed effects, and row nested within block as random eff
Optimal foraging in bumblebees: hunting by expectation
Predictions of the three hypotheses concerned with hunting by expectation were tested experimentally by varying the quality of plants (amount and distribution of nectar) encountered by bumblebees (Bombus appositus).
The population ecology of a natural population of the pierid butterfly Colias alexandra
Key factor analysis techniques were used to examine factors determining the abundance of a population of non-pest Colias, finding factors resulting in reduced natality and mortality during larval diapause determine the population trends for C. alexandra.
Slowed motion analysis of stridulation in the grasshopper, Xanthippus corallipes (Acrididae: Oedipodinae)
Butterfly nomenclature: a critique
Dispersal of yearling yellow bellied marmots <i>Marmota flaviventris</i>
Morphological variation of Daphnia pulex Leydig (Crustacea: Cladocera) and related species from North America
The data support either the view that the D. pulex species group is one widespread and variable species, or that it is comprised of a much larger number of species than presently recognized.
Heat exchange of nesting hummingbirds in the Rocky Mountains
Population structure of pierid butterflies. IV. Genetic and physiological investment in offspring by male Colias
Female use of nutrients donated by males at mating, and complete sperm precedence, in Colias eurytheme Boisduval are documented.
Early experience determines song dialect responsiveness of female sparrows
In a laboratory experiment, female white-crowned sparrows responded almost exclusively to male songs taken from their home dialect region and usually not to songs taken from an alien dialect region. Song dialect populations may represent a level of genetic population structure below that of the subs
Sociality as a life-history tactic of ground squirrels
Analysis of life-history traits of 18 species of burrowing sciurids indicates that reproductive effort is determined by body-size energetics, and sociality in these species may have evolved through retention of daughters within the maternal home range as a means of continuing reproductive investment
Determinants of diet of brook trout (<i>Salvelinus fontinalis</i>) in a mountain stream
Feeding rates, time of feeding, and prey choice of brook trout (Salvelinus fontinalis) were studied in Cement Creek, Colorado, in 1975–77. On each of five dates from early June to late September, I collected trout at intervals over a 24-h period, along with samples of invertebrate drift and benthos.
Geographic variation in vocalizations and evolution of North American pine grosbeaks
North American Pine Grosbeaks (Pinicola enucleator) vary geographically in two of their call notes. Variation is greatest in the location calls that communicate between individuals at great distances. Birds of the taiga and coastal Alaska give whistled calls, of which four categories have been ident
Allocation of Forest Management Practices on Public Lands
James. M. Turner. Ann. Reg. Sci. 8(2): 72-88. June 1974. ?
1974 Comparison Average Annual River Basin Water Supply
Bureau of Rec. Water basin supply data. 1974.
The Referral Process_1973
City of Lakewood Colorado. 1973.
Situation: George and Barbara Harral are owners of approximately 54 acres of land astride the Gunnison River. This land is in the process of being subdivided and information is needed on soils to comply with Gunnison County Subdivision Regulations.
Chuck Malone. USDA Soil Conservation Service. October 29, 1973.
