1,081 results — topic: Wildlife Behavior
Heat exchange of nesting hummingbirds in the Rocky Mountains
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.