1,081 results — topic: Wildlife Behavior
Social Behavior and Population Dynamics of Marmots
This table contains 37 years of demographic data for 12 sites. The trap record for each animal for each year the animal was present includes age, sex, locality, and reproductive status. Also included, when known, are changes in location, fate (predation death, dispersed), and genetic information (al
Social Behavior and Population Dynamics of Marmots
This table contains 37 years of demographic data for 12 sites. The trap record for each animal for each year the animal was present includes age, sex, locality, and reproductive status. Also included, when known, are changes in location, fate (predation death, dispersed), and genetic information (al
The relation of resource density to exploration time in the least chipmunk
The effect of quinolizidine alkaloids on oviposition preference, larval food preference, and survival and growth of <i>Plebejus icariodes</i> (Lycaenidae) larvae
Carcass utilization by two species of carrion beetle
Obesity: Dietary Factors and Control
Trends in Ecology
Duration of snow cover and its influence on life-history variation in yellow-bellied marmots
We evaluated the relationship between growing-season phenology, as indicated by time of snow melt, and intrapopulation variation in reproduction and growth of yellow-bellied marmots. The time of snow melt explained significant proportions of the variation in frequency of reproduction (78%), litter s
Yellow-bellied marmots as prey of coyotes
-Analysis of contents of 395 coyote (Canis latrans) scats collected for 6 yr at a subalpine locality in Colorado showed that yellow-bellied marmots (Marmota flaviventris) were a regular and frequent prey of coyotes during summer. There was no evidence that marmots were especially vulnerable to preda
Seasonal glucose uptake in marmots (<i>Marmota flaviventris</i>): the role of pancreatic hormones
A practical technique for measuring the behavior of foraging animals
Research Article| April 01 1991 A Practical Technique for Measuring the Behavior of Foraging Animals Rosemary J. Smith, Rosemary J. Smith Search for other works by this author on: This Site PubMed Google Scholar Joel S. Brown Joel S. Brown Search for other works by this author on: This Site PubMed G
Social behavior and space-use of ground-dwelling squirrel species with different levels of sociality
Comparisons among young of ground-dwelling squirrel species with different adult sociality indicate patterns of interaction during development that may influence the evolution of complex sociality. Social behavior and spatial overlap of weaned young with their mothers, littermates, non-littermate yo
Habitat selection by stream-dwelling predatory stoneflies
Patterns of substrate size preference of predatory stoneflies were measured in a western Colorado, USA, stream and associations were examined between substrates and other physical and biological variables. Predatory Megarcys signata (Perlodidae) were found disproportionately on large stones that wer
A field test of resource depression by predatory stonefly larvae
Experiments were conducted in two Rocky Mountain streams (Gunnison County, Colorado) to determine the context within which predatory stonefly larvae locally depress their prey populations. In feeding trials where no migration of prey (Baetis bicaudatus, Ephemeroptera) was allowed from flow-through b
Intraventricular insulin reduces food intake and body weight of marmots during the summer feeding period
It is suggested that during the summer when marmots are not hibernating and are actively feeding, brain insulin levels may play a role in regulating food intake.
Seasonal changes in CSF insulin concentrations in marmots: insulin may not be the satiety signal for fasting in winter
A profile of persistence: territorial hummingbirds
Factors affecting corticosteroid concentrations in yellow-bellied marmots
There was no consistent relationship between measures of population density and concentrations of corticosteroids; when a significant relationship occurred, only 22-34% of the variation was explained.
Mud puddling by butterflies is not a simple matter
Two sets of hypotheses based on sodium limitation have been proposed to explain the sexual dimorphism in puddling hchaviour, which suggested that males have a greater need for sodium in neuroniuscular activity because they spend a larger time in flight than females.