Document Detail


Association of seasonal reproductive patterns with changing food availability in an equatorial carnivore, the spotted hyaena (Crocuta crocuta).
MedLine Citation:
PMID:  10505059     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Reproductive seasonality was examined in an equatorial population of free-living spotted hyaenas (Crocuta crocuta) in Kenya. The study population was observed continuously for 10 years, during which time the dates of all births, conceptions, weanings, and cub deaths were recorded. Local prey abundance was estimated two to four times per month, and rainfall was recorded daily throughout the study period. Births occurred during every month of the year, but a distinct trough in births occurred from February to May. This trough occurred approximately one gestation period after the phase of the annual cycle during which prey animals were least abundant in the home range of the hyaenas, and conceptions occurred most frequently when food abundance was greatest. Neither rainfall nor cub mortality were correlated with births or conceptions. Thus, although spotted hyaenas are capable of breeding throughout the year, they exhibit a moderate degree of seasonality that most likely reflects responses to seasonal variation in energy availability.
Authors:
K E Holekamp; M Szykman; E E Boydston; L Smale
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Journal of reproduction and fertility     Volume:  116     ISSN:  0022-4251     ISO Abbreviation:  J. Reprod. Fertil.     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-10-12     Completed Date:  1999-10-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376367     Medline TA:  J Reprod Fertil     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  87-93     Citation Subset:  IM    
Affiliation:
Department of Zoology, Michigan State University, East Lansing 48824, USA.
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MeSH Terms
Descriptor/Qualifier:
Analysis of Variance
Animals
Carnivora / physiology*
Eating / physiology*
Female
Fertilization / physiology
Male
Parity / physiology
Reproduction / physiology*
Seasons*
Tropical Climate*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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