1,081 results — topic: Wildlife Behavior
Population structure of pierid butterflies. I. Numbers and movements of some montane <i>Colias</i> species
Resource partitioning in bumblebees
The food habits of stoneflies (Plecoptera) in the upper Gunnison River, Colorado
Gut contents of 1,463 stonefly nymphs, comprising 10 species, from the Gunnison River, Colorado, were analyzed from Dec., 1974–Oct., 1975, in relation to food availability. Pteronarcella badia fed primarily on detritus and moss. Perlidae and Perlodidae mature nymphs were all carnivorous, but showed
Social variety in the yellow-bellied marmot: a population-behavioural system
This is the publisher's version of the paper's abstract, which can be found at: http://www.sciencedirect.com/science/article/pii/0003347277901087.
Predation by badger on yellow-bellied marmot in Colorado
Flower behavior in Linum lewisii: some ecological and physiological factors in opening and abscission of petals
Fredrick T. Addicott, Flower Behavior in Linum lewisii: Some Ecological and Physiological Factors in Opening and Abscission of Petals, The American Midland Naturalist, Vol. 97, No. 2 (Apr., 1977), pp. 321-332
Food supply and nest timing of broad-tailed hummingbirds in the Rocky Mountains
Journal Article Food Supply and Nest Timing of Broad-Tailed Hummingbirds in the Rocky Mountains Get access Nickolas M. Waser Nickolas M. Waser Department of Ecology and Evolutionary Biology, University of Arizona, Tuscan, Arizona 85721 and Rocky Mountain Biological Laboratory, Crested Butte, Colorad
Structure and location of burrows of yellow-bellied marmot
The yellow-bellied marmot spends approximately 80% of its life in a burrow. Burrows provide protection from the rigors of the environment, pred- ators and other marmots. They provide a hibernaculum in winter and may func- tion as a nursery in summer. Selection of a burrow site is therefore an import
Resource overlap between co-occurring copepods: effects of predation and environmental variability
Energy crisis of the hummingbird
Seasonal changes in weights of marmots
Seasonal changes in the body weights of yellow-bellied marmot (Marmota flaviventris) populations were studied for 8 years in western Colorado. Marmots may be classified by size into four age groups: juvenile, yearling, 2-year-old, and 3-year-old or older, each group with significantly different mean
Scent-marking by yellow-bellied marmots
Socioecology of marmots: female reproductive strategies
The relationship between female reproductive success and both spring food and hibernacula resources was examined in a high—altitude population of yellow—bellied marmots (Marmota flaviventris). The number of offspring a female weaned was significantly associated with the estimated number she could po
Caloric content of Rocky Mountain subalpine and Alpine Plants
Caloric equivalents for aboveground parts of Rocky Mountain subalpine and alpine herbaceous plants averaged 4,859 cal/g ash-free oven-dry weight. Ash content averaged 9.8% for 17 forbs. Both caloric content and ash content ranged higher than values for alpine species from New Hampshire.