Nursing vocalization of a polar bear cub

  title={Nursing vocalization of a polar bear cub},
  author={Andrew E. Derocher and Sofie M. Van Parijs and {\O}ystein Wiig},
Abstract We recorded the nursing vocalization of a wild polar bear (Ursus maritimus) cub in Svalbard, Norway and describe it with the term humming. From a 3-minute recording of the vocalization, we found the sounds composed of between 30–55 pulses with a mean of 0.05 (SE  =  0.002) seconds in duration, a frequency with the greatest energy at 0.28 kHz (SE  =  0.06), and a mean maximum frequency of 0.85 kHz (SE  =  0.15). The function of the pulsed vocalization is unknown but may relate to… Expand
Vocal repertoire of Asiatic Black Bear (Ursus thibetanus) cubs
The vocalizations of three wild orphaned cubs reared by two observers in natural conditions in the Russian Far East are investigated, indicating that the vocal repertoire of the Asiatic Black Bear cubs is graded, but includes at least two discrete sound types. Expand
In-Air Auditory Psychophysics and the Management of a Threatened Carnivore, the Polar Bear (Ursus maritimus)
Management criteria for preventing biologically-significant noise disturbance in large terrestrial mammals have not been developed based on a sound, empirical understanding of their sensory ecology.Expand
The vocal repertoire of infant giant pandas (Ailuropoda melanoleuca)
It is shown that infant giant panda vocalizations convey information about a cub's distress and need, rather than being tied to specific contexts of emission, and provides a foundation for future studies of vocal ontogeny in this highly endangered species. Expand
The influence of ambient noise on maternal behavior in a Bornean sun bear (Helarctos malayanus euryspilus).
The results suggest that the behavioral response to ambient noise may have potential energetic costs, and as a result efforts should be made to reduce ambient noise exposure during the post-partum period. Expand
Polar bear mother‐offspring interactions in maternity dens in captivity
It is suggested that maternal stress was a factor in cub mortality in two female polar bears at Dierenrijk Zoo. Expand
Marine Mammal Noise Exposure Criteria: Updated Scientific Recommendations for Residual Hearing Effects
sources, exposure criteria are given in frequencyweighted sound exposure level (SEL, given in This article evaluates Southall et al. (2007) in light units relative to 1 μPa-s or (20 μPa)-s for waterExpand
Polar Bear Maternal Care, Neonatal Development, and Social Behavior
  • Megan A. Owen
  • Biology
  • Ethology and Behavioral Ecology of Sea Otters and Polar Bears
  • 2021
Polar bear maternal behavior and neonatal development are difficult to study because maternal dens are secluded and generally inaccessible. As a result, much of what we know comes from polar bears inExpand


An analysis of the chuffing vocalization in the Polar bear (Ursus maritimus)
In an effort to determine the function of a low intensity repetitive call termed chuffing, quantitative data were analyzed for behavioural associations and contingencies, and several hypotheses wereExpand
Humming in bears: a peculiar sustained mammalian vocalization
This work clarified the presence of this vocalization in the species of the Ursidae as well as its structural characteristics and specific mode of sound production, and introduced the term humming for it. Expand
Vocal Communication in Raccoons (Procyon Lotor)
A comparison of the vocalizations in other carnivores reveals that the structure-motivational pattern found in raccoons is a wide-spread phenomenon in carnivores. Expand
Midsummer observations on the behavior of wild polar bears (Ursus maritimus)
A diurnal rhythm was recorded in which bears slept most during the latter third of the 24-h cycle and least in the first third, and all cubs observed hunted, but they exhibited great variety in patience and apparent skill. Expand
There was a wide range of tolerance to high dosages and bears appeared able to thermoregulate while immobilized, and the mortality rate due to handling was lower than with any other drug used to date. Expand
Acoustic Communication by Fissiped Carnivores
It is probably no accident that wolf howling—unlike other acoustic signals of carnivores—is one of the best-studied mammalian vocalizations. Expand
Interactions between free-ranging, adult male polar bears (Ursus maritimus Phipps): a case of adult social play
It is hypothesized that social play between adult male polar bears during the noncompetitive period of their annual cycle serves as a socialization process facilitating socialization in polar bears. Expand
Comparative hunting abilities of polar bear cubs of different ages
In most areas of the Canadian Arctic polar bear (Ursus maritimus) cubs apparently remain with their mothers until they are 2.5 years of age. The degree to which cubs of each age-class participate i...
Occurrence and structure of epipharyngeal pouches in bears (Ursidae)
Findings prove epipharyngeal pouches to be constant and unique morphological features of the family Ursidae, the anatomical features suggesting involvement in the respiratory system most probably in important aspects of ursid phonation. Expand
The Giant Pandas of Wolong
The authors review anatomical, biochemical, behavioral, and paleontological evidence, concluding that the giant panda is neither bear nor raccoon but belongs in a separate family, perhaps with the small red panda. Expand