Distribution and activity of male harbour seals during the mating season

@article{Parijs1997DistributionAA,
  title={Distribution and activity of male harbour seals during the mating season},
  author={S. M. Parijs and P. Thompson and D. Tollit and Ann Mackay},
  journal={Animal Behaviour},
  year={1997},
  volume={54},
  pages={35-43}
}
Little is known about male reproductive strategies in aquatically mating pinnipeds. To study the mating patterns of harbour seals, Phoca vitulinaVHF telemetry was used to relate the distribution and behaviour of adult males to the distribution of females during the summer pupping and mating season. Prior to July males occupied large and variable ranges. At the beginning of July, males decreased their mean range size, but continued to spend much of their time in the water where they made… Expand
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References

SHOWING 1-10 OF 43 REFERENCES
Changes in the distribution and activity of female harbour seals during the breeding season: implications for their lactation strategy and mating patterns
TLDR
The duration of the period that females spent inshore with young pups was positively related to female body size, suggesting that the species'small size may demand that they feed to maintain lactation. Expand
Changes in body mass and feeding behaviour in male harbour seals, Phoca vitulina, in relation to female reproductive status
TLDR
The results suggest that reproduction represents a significant energetic cost to adult male harbour seals, and examination of sera for the presence of chylomicrons suggested that adults stopped feeding during the mating period, while subadults did not. Expand
Mating strategies in male hooded seals (Cystophora cristata)
TLDR
Male attendance of females with pups was monitored in individually marked hooded seals, Cystophora cristata, during the breeding seasons of 1988 and 1989, consistent with the hypothesis that male hooded seal are serially monogamous, i.e., polygynous, during a single breeding season. Expand
Habitat use and diving behaviour of harbour seals in a coastal archipelago in Norway
TLDR
The combination of VHF and ultrasonic telemetry is useful for studies of resident seals and tracking free ranging seals at close proximity made it possible to identify and describe their resting, foraging and display areas. Expand
Dispersion and site fidelity of breeding male grey seals (Halichoevus grypus) on North Rona, Scotland
The daily locations of socially active male grey seals were recorded during three successive breeding seasons on North Rona (Outer Hebrides, Scotland). Areas of occupancy were defined for 38Expand
Summer foraging activity and movements of radio-tagged common seals (Phoca vitulina L.) in the Moray Firth, Scotland.
TLDR
VHF telemetry was used to study summer foraging patterns and movements of three adult common seals in the Moray Firth, Scotland, finding that at-sea locations were often clumped and spatial and temporal variations in the distribution of seals were discussed. Expand
Male mating success and paternity in the grey seal, Halichoerus grypus: a study using DNA fingerprinting
TLDR
Overall, DNA typed males were more dominant, maintained positions amongst the females for longer, and accounted for disproportionately more paternities than untyped males, however, the reproductive success of the typed males is not as great as their behavioural domination of copulatory opportunities would suggest. Expand
SEASONAL AND SEX-RELATED VARIATION IN THE ACTIVITY PATTERNS OF COMMON SEALS (PHOCA VITULINA)
TLDR
Radio-telemetry was used to study common seal activity patterns around Orkney to assess the degree of individual, seasonal and sex-related variation in haul-out behaviour in 1984-86, which found variations in activity patterns were related to seasonal changes in feeding activity and the demands of breeding and moult. Expand
Territorial behavior and breeding frequency of male Weddell seals (Leptonychotes weddelli) in relation to age, size, and concentrations of serum testosterone and cortisol
The onset of sexual maturity and changes in weight and serum testosterone and cortisol concentrations were studied in male Weddell seals during October–December, 1986, at a breeding colony in McMurdoExpand
Aquatic territory defence by male harbour seals (Phoca vitulina) at Miquelon - relationship between active defence and male reproductive success
TLDR
The paternity results from DNA fingerprinting indicated that this technique could be used successfully to determine paternities in harbour seals, and results indicated that displays were for boundary defence and not self-advertisement. Expand
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