Spatial organization and spatial distribution of activities within home ranges in a Springbok (Antidorcas marsupialis) captive population
Abstract 10.1002/zoo.20152.abs We studied over 1 year the spatial organization and the spatial distribution of activities in a captive springbok (Antidorcas marsupialis) population living in an 18-ha enclosure located in southern France. Throughout the study period, the two adult males occupied fairly exclusive home ranges, in the overlapping part of which the three subadult males […]
Spatial memory for food hidden by rats (Rattus norvegicus) on the radial maze: Studies of memory for where, what, and when
Rats (Rattus norvegicus) were allowed to hide food items on an 8-arm radial maze by carrying the items from the center to boxes at the end of each arm. Retrieval tests given after rats had hidden 4 items showed that they selectively returned to the maze arms where food had been hidden (Experiments 1 and […]
Prenatal experience and postnatal perceptual preferences: Evidence for attentional-bias in bobwhite quail embryos ( Colinus virginianus)
Previous studies have indicated that concurrent multimodal sensory stimulation can interfere with prenatal perceptual learning. This study further examined this issue by exposing 3 groups of bobwhite quail embryos (Colinus virginianus) to (a) no supplemental stimulation, (b) a bobwhite maternal call, or (c) a maternal call paired with a pulsating light in the period prior […]
Deterioration of planning ability with age in Japanese monkeys (Macaca fuscata)
To investigate the ability of aged monkeys to plan and the effect of aging on this ability, performance in a food retrieval task was assessed in aged and younger Japanese monkeys (Macaca fuscata). In this task, the monkeys had to retrieve food items by selecting from a set of 9 holes, each of which contained […]
Depressive behavior in young monkeys subjected to vertical chamber confinement
Young rhesus monkeys were confined in vertical chambers for 6 wk., and their subsequent behavior over a 9-mo. period in both a home-cage and playroom situation was compared with that of like-aged monkeys housed individually or in pairs. In comparison to both control groups, chambered monkeys exhibited excessive amounts of self-clasp and huddle, abnormally low […]
Experimental Validation of Sex Differences in Spatial Behavior Patterns of Free-Ranging Snakes: Implications for Social Interactions
Social interactions often play a significant role in determining patterns of spatial use. Although snakes are generally thought of as asocial, recent spatial dispersion studies suggest that the spatial ecology of snakes may be more strongly influenced by social interactions than previously thought. We investigated the spatial behavior patterns of a western cottonmouth (Agkistrodon piscivorus) […]
Aggression and Welfare in a Common Aquarium Fish, the Midas Cichlid
Many species of fishes are aggressive when placed in small aquaria. Aggression can negatively affect the welfare of those individuals toward whom it is directed. Animals may behave aggressively in order to defend resources such as food, shelter, mates, and offspring. The decision to defend depends on the distribution of resources and on ecological factors […]