PATERNITY EXCLUSION BY DNA-FINGERPRINTING, AND MATE GUARDING IN THE HOODED SEAL CYSTOPHORA-CRISTATA

被引：14
|
作者：
MCRAE, SB [1 ]
KOVACS, KM [1 ]
机构：
[1] UNIV WATERLOO,DEPT BIOL,WATERLOO N2L 3G1,ON,CANADA
来源：
MOLECULAR ECOLOGY | 1994年 / 3卷 / 02期
关键词：
CYSTOPHORA CRISTATA; DNA FINGERPRINTING; HOODED SEAL; MATING STRATEGIES; PATERNITY EXCLUSION; PINNIPEDS;
D O I：
10.1111/j.1365-294X.1994.tb00110.x
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Hooded seal Cystophora cristata trios consist of an adult female, her pup, and an attending adult male. Using DNA fingerprinting, we excluded the possibility that the attending males within hooded seal trios were the fathers of the pups, proving that these hooded seals did not remain paired from one breeding season to the next. Behavioual observations of the trios after capture and release revealed that male hooded seals displace one another in attending nursing females. Mate guarding appears to be the preferred mating strategy available to male hooded seals given intense competition for females, a very brief nursing period, and oestrus occuring soon after weaning, but its effectiveness remains unclear.
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页码：101 / 107
页数：7
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