PUP WEIGHT AND SURVIVAL OF NORTHERN FUR SEALS CALLORHINUS-URSINUS

被引：86

作者：

BAKER, JD

FOWLER, CW

机构：

[1] National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Oceanic and Atmospheric Administration, Seattle, Washington, 98115-0070, 7600 Sand Point Way N.E.

来源：

JOURNAL OF ZOOLOGY | 1992年 / 227卷

关键词：

D O I：

10.1111/j.1469-7998.1992.tb04819.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The relationship between northern fur seal pup weight and post-weaning survival is examined. Males that survived at least two years after weaning had been significantly heavier than the mean for their cohort as pups. Among a small sample of females no significant relationship was found. Cohort survival from weaning to age two was not significantly correlated with mean pup weight. Pup weight may influence post-weaning survival less than other factors such as gender and variability of the environment. To the degree that it determines survival, pup weight may reflect the reproductive success or fitness of parents. Weight differences between tagged and untagged pups explain, in part, differences observed in their survival.

引用

页码：231 / 238

页数：8

共 42 条

[1] GRAY SEAL, HALICHOERUS-GRYPUS, ENERGETICS - FEMALES INVEST MORE IN MALE OFFSPRING [J].

ANDERSON, SS ;

FEDAK, MA .

JOURNAL OF ZOOLOGY, 1987, 211 :667-679

[2]

ANTONELIS GA, IN PRESS NOAA TECH M

[3] RELATIONSHIPS BETWEEN BODY SIZE AND SOME LIFE-HISTORY PARAMETERS [J].

BLUEWEISS, L ;

FOX, H ;

KUDZMA, V ;

NAKASHIMA, D ;

PETERS, R ;

SAMS, S .

OECOLOGIA, 1978, 37 (02) :257-272

[4] MORTALITY OF NORTHERN FUR-SEAL PUPS IN RELATION TO GROWTH AND BIRTH WEIGHTS [J].

CALAMBOKIDIS, J ;

GENTRY, RL .

JOURNAL OF WILDLIFE DISEASES, 1985, 21 (03) :327-330

[5] PARENTAL INVESTMENT AND SEX-DIFFERENCES IN JUVENILE MORTALITY IN BIRDS AND MAMMALS [J].

CLUTTONBROCK, TH ;

ALBON, SD ;

GUINNESS, FE .

NATURE, 1985, 313 (5998) :131-133

[6]

Conover W.J., 1999, PRACTICAL NONPARAMET, P428, DOI DOI 10.1002/BIMJ.19730150311

[7]

Costa D.P., 1986, P79

[8] THE BREEDING BIOLOGY OF THE GREY SEAL, HALICHOERUS-GRYPUS (FAB), ON THE FARNE ISLANDS, NORTHUMBERLAND [J].

COULSON, JC .

JOURNAL OF ANIMAL ECOLOGY, 1964, 33 (03) :485-512

[9]

FISCUS CH, 1986, MARINE MAMMALS E N P, P174

[10] DENSITY DEPENDENCE IN NORTHERN FUR SEALS (CALLORHINUS-URSINUS) [J].

FOWLER, CW .

MARINE MAMMAL SCIENCE, 1990, 6 (03) :171-195

← 1 2 3 4 5 →