Failure of a Chemical Spray to Significantly Reduce Stereotypic Licking in a Captive Giraffe
The repetitive licking of nonfood substrates is a common stereotypic behavior in captive giraffes. In this study we attempted to reduce stereotypic licking in a Masai giraffe (Giraffa camelopardalis tippelskirchi) by applying a bitter chemical (marketed as a taste deterrent to prevent the unwanted licking and chewing of substrates) to the areas of the fence […]
Daytime activity patterns of gerenuk and giraffe in Tsavo National Park, Kenya
Individual daytime activity patterns of gerenuks (Litocranius walleri) and giraffes (Giraffa camelopardalis) varied considerably, being influenced by such factors as the social environment, reproductive status, predators, and weather conditions. In male gerenuks and female giraffes, relative feeding time per day was inversely correlated with ambient temperature at 14.00 hours; the same relationship applied to mean […]
Sex differences in giraffe foraging behavior at two spatial scales
We test predictions about differences in the foraging behaviors of male and female giraffes (Giraffa camelopardalis tippelskirchi Matchie) that derive from a hypothesis linking sexual size dimorphism to foraging behavior. This body-size hypothesis predicts that males will exhibit specific behaviors that increase their dry-matter intake rate relative to females. Foraging behavior was examined at two […]
Evidence of a Time Constant Associated With Movement Patterns in Six Mammalian Species
Human psychophysical studies have provided evidence of a short duration time constant associated with perceptual tasks. This time constant is approximately 3 s in duration, and evidence suggests that it represents a central neural mechanism that functions to integrate “successive events into a Gestalt” in order to create a “subjective present.” Recent studies have found […]
Cow-calf relationships in Giraffe (Giraffa camelopardalis giraffa)
The duration and intensity of the cow-calf bond during lying out, calving pools, and nursery herds has been analysed in a wild population of giraffe (Giraffa camelopardalis giraffa). Field behavior observations were made on naturally marked and radio-collared giraffe. Radio-tracking was used to follow and observe giraffe of a known age for up to 1.5 […]
Behavioral sleep in the giraffe (Giraffa camelopardalis) in a zoological garden
Behavioral sleep was assessed for 152 nights in 5 adult, 2 immature, and 1 juvenile giraffes at a zoological garden, using continuous time-lapse video recording. Sleep occurred while the giraffes were standing (SS) and in recumbency (RS). Paradoxical sleep (PS) was recognized by the peculiar positioning of the head on the croup and by phasic […]
Behavioral Development in Okapis and Giraffes
Observations on the behavioral development of two okapi calves and one giraffe calf were made at Brookfield Zoo. The following behaviors were monitored for 4 to 6 mo after birth: nursing duration and nursing attempts, mother-infant distance, bunting the mother’s udder, lying, moving, maternal grooming, mother and infant autogrooming, object licking, tail chewing, and contact […]