TITLE

Siblicide in the spotted hyena: analysis with ultrasonic examination of wild and captive individuals

AUTHOR(S)
Sofia A. Wahaj; Ned J. Place; Mary L. Weldele; Stephen E. Glickman; Kay E. Holekamp
PUB. DATE
October 2007
SOURCE
Behavioral Ecology;Oct2007, Vol. 18 Issue 6, p974
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Integrated field and laboratory studies of long-lived, large-bodied mammals are rare but offer unique opportunities to elucidate the behavioral ecology of these animals. Here, we used this approach to examine whether siblicide in spotted hyenas (Crocuta crocuta) is obligate or facultative. First, we tested predictions of obligate and facultative hypotheses by using ultrasonography to compare litter size before and after parturition and identify potential causes of litter reduction. Second, we compared litter size and composition between wild and captive hyenas to assess variation in offspring sex ratios. Third, we used demographic data to compare survivorship among litters of various sizes and compositions. Fourth, we compared sex ratios within twin litters born in the wild under conditions of high population density and intense feeding competition with those born when population density and intensity of feeding competition were reduced. Our data were inconsistent with the obligate siblicide hypothesis. Litter reduction occurred during roughly one-third of pregnancies in both wild and captive hyenas, and all such reductions among captives were due to fetal resorptions or stillbirths. Litter sizes and compositions differed little between wild and captive hyenas. However, sex ratios in twin litters varied in the wild with intensity of feeding competition. In conjunction with captive data, long-term study of a wild hyena population under varying environmental conditions suggests facultative siblicide is most likely to occur when feeding competition is most intense, thus offering an ecological explanation for earlier conflicting reports on siblicide in this species.
ACCESSION #
27314862

 

Related Articles

  • HYENA HAVEN. Schleichert, Elizabeth; Eszterhas, Suzi // Ranger Rick;Jun2007, Vol. 41 Issue 6, p10 

    The article offers information regarding spotted hyena.

  • Male spotted hyenas (Crocuta crocuta) queue for status in social groups dominated by females. Marion L. East; Heribert Hofer // Behavioral Ecology;Sep2001, Vol. 12 Issue 5, p558 

    A long-term study of immigrant male spotted hyenas (Crocuta crocuta) living in large multimale/multifemale groups (clans) demonstrated that males acquire social status by queuing. Maximum likelihood estimates of parameters of a stochastic queuing model that assessed queuing discipline...

  • Peri-urban spotted hyena ( Crocuta crocuta) in Northern Ethiopia: diet, economic impact, and abundance. Abay, Gidey Yirga; Bauer, Hans; Gebrihiwot, Kindeya; Deckers, Jozef // European Journal of Wildlife Research;Aug2011, Vol. 57 Issue 4, p759 

    Global declines of carnivores are related to difficult integration with human land use, in particular conflicts caused by livestock depredation. Spotted hyenas (Crocuta crocuta) live in remarkably close proximity to humans in the degraded and prey-depleted Enderta district, northern Ethiopia....

  • Hyenas of the Kalahari. Owens, Delia; Owens, Mark // Natural History;Feb80, Vol. 89 Issue 2, p44 

    Features the hyenas of the Kalahari dessert. Hunting and predatory behavior; Description of different types of hyenas; Impact of seasonal changes on hunting behavior.

  • Reproductive skew among males in a female-dominated mammalian society. Anne L. Engh; Stephan M. Funk; Russell C. Van Horn; Kim T. Scribner; Michael W. Bruford; Scot Libants; Micaela Szykman; Laura Smale; Kay E. Holekamp // Behavioral Ecology;Mar2002, Vol. 13 Issue 2, p193 

    The purpose of this study was to document patterns of reproductive skew among male spotted hyenas (Crocuta crocuta), a species in which many normal mammalian sex roles are reversed. We used paternity determined from 12 microsatellite markers together with demographic and behavioral data...

  • The Spotted or Laughing Hyena... Burney, James // Monkeyshines on Health & Science;Dec1999 Ethology, p14 

    Hyenas look like dogs but they are not even related to them. The spotted hyena has a large head, thick well-developed neck muscles, and usually a yellowish gray coat with round, black spots. Their front legs are longer than their hind legs which makes them clumsy walkers. The spotted hyena is...

  • The Spotted Hyena from Aristotle to the Lion King: Reputation is Everything. Glickman, Stephen E. // Social Research;Fall95, Vol. 62 Issue 3, p501 

    This article raises the question of why scientists were so out of step with the rest of Western culture in their attitudes toward hyenas. The author begins with a brief survey of the portrayal of hyenas in twentieth-century U.S. culture and then considers the shaping of the hyena image over a...

  • Dayton, Ohio, officials focus on glass.  // Waste News;8/12/96, Vol. 2 Issue 13, p6 

    Reports on Dayton, Ohio officials' effort to curb an increasing problem of empty beer and wine bottles littering main thoroughfares. Raising of public awareness.

  • Criminals come clean. Palmer, Lucy // Bulletin with Newsweek;07/30/96, Vol. 116 Issue 6031, p28 

    Reports on the City Rangers, anti-litter groups in Port Moresby, Papua New Guinea. Punishment for offenders; Social benefits of the groups' initiatives; Concern on the recruitment of gangs.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics