Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 3 of 3
Full-Text Articles in Behavior and Ethology
Simulation Analyses Of Space Use: Home Range Estimates, Variability, And Sample Size, Marc Bekoff, L. David Mech
Simulation Analyses Of Space Use: Home Range Estimates, Variability, And Sample Size, Marc Bekoff, L. David Mech
USGS Northern Prairie Wildlife Research Center
Simulations of space use by animals were run to determine the relationship among home range area estimates, variability, and sample size (number of locations). As sample size increased, home range size increased asymptotically, whereas variability decreased among mean home range area estimates generated by multiple simulations for the same sample size. Our results suggest that field workers should ascertain between 100 and 200 locations in order to estimate reliably home range area. In some cases, this suggested guideline is higher than values found in the few published studies in which the relationship between home range area and number of locations …
Discrimination And Generalization Of Leaf Damage By Blue Jays (Cyanocitta Cristata), Pamela G. Real, Ruth Iannazzi, Alan C. Kamil, Bernd Heinrich
Discrimination And Generalization Of Leaf Damage By Blue Jays (Cyanocitta Cristata), Pamela G. Real, Ruth Iannazzi, Alan C. Kamil, Bernd Heinrich
Papers in Behavior in Biological Sciences
Blue jays (Cyanocitta cristata) responded to projected black-and-white silhouettes of cherry leaves that were either undamaged or were damaged by either cryptic caterpillars that disguise leaf damage due to their feeding or by noncryptic caterpillars that do not disguise leaf damage due to their feeding. Pecks to the key on which the images were projected were reinforced only if interresponse times fell within specified temporal boundaries. These boundaries were different in the presence of the two types of leaf damage. Following training with one exemplar of each damage type, the jays correctly categorized novel instances of both types. …
Dummy-Elicited Aggressive Behavior In The Polychromatic Midas Cichlid, George W. Barlow, William Rogers, Alan B. Bond
Dummy-Elicited Aggressive Behavior In The Polychromatic Midas Cichlid, George W. Barlow, William Rogers, Alan B. Bond
Alan Bond Publications
Aggressive responses of 12 individuals of the polychromatic Midas cichlid Cichlasoma citrinellum were tested with five different sizes of neutrally colored (spot pattern) life-like dummies. The dummies were presented daily over six days, for one minute apiece, in a balanced design. Color (gold or normal morph) and sex of the subjects were varied independently. The attacks and threats at the dummies were positively correlated in their occurrence so they were combined to yield an aggregate measure of aggression. Attacks on blinded juveniles, five minutes before and five minutes after viewing a dummy, were analyzed to test for the occurrence of …