Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Jim I. McMillan"'
Autor:
Jim I. McMillan, John C. Brazner
Publikováno v:
Fisheries Research. 91:310-324
Little is known about the ecology of loggerhead turtles, Caretta caretta, in Canadian waters. However, Canada's eastern waters off the Scotian Shelf, Georges Bank and Grand Banks appear to be seasonal foraging habitats based on dates and locations wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::821563ff77cbff52bf8fc5dd1e6d3aa1
https://doi.org/10.1016/j.fishres.2007.12.023
https://doi.org/10.1016/j.fishres.2007.12.023
Publikováno v:
Hormones and Behavior. 53:241-248
Studies on primates and other taxa have shown that the physiological response of an individual to stress reflects their social status. We combined behavioral observations with measures of stress to test the hypothesis that stress is an important phys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88cc24545abc1a258c5ec81b8b76c57
https://doi.org/10.1016/j.yhbeh.2007.10.003
https://doi.org/10.1016/j.yhbeh.2007.10.003
Publikováno v:
Marine Mammal Science. 23:48-64
Pup production on Sable Island, Nova Scotia, has been increasing exponentially since the early 1960s and by 1997 Sable Island was the largest gray seal colony worldwide. Using an aerial photographic survey, as in previous years, we estimated pup prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ee61806df55943e5ea345b9c952ef2c
https://doi.org/10.1111/j.1748-7692.2006.00085.x
https://doi.org/10.1111/j.1748-7692.2006.00085.x
Publikováno v:
Proceedings of the Royal Society B: Biological Sciences. 273:2319-2326
Many animal species segregate by sex. Such segregation may be social in nature, or ecological, or both. Grey seals (Halichoerus grypus), like many large mammals, are sexually size dimorphic. In size dimorphic species, allometric differences in morpho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b8f446ed4179726b8af36a908dda13a
https://doi.org/10.1098/rspb.2006.3581
https://doi.org/10.1098/rspb.2006.3581
Publikováno v:
Journal of Animal Ecology. 75:408-420
Summary 1 We studied feeding frequency in free-ranging grey seals using stomach temperature telemetry to test if previously reported sex differences in the diving, movement and diet were reflected in the temporal pattern of foraging success. 2 Data w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca22acce0ed67d034599b3c011f26e72
https://doi.org/10.1111/j.1365-2656.2006.01057.x
https://doi.org/10.1111/j.1365-2656.2006.01057.x
Publikováno v:
Behavioral Ecology. 16:541-549
The purpose of this study was to examine the importance of body size and body composition as determinants of conditional mating tactics exhibited in male grey seals. We combined behavioral observations with measures of energy expenditure and success
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::427afd8242639a0dec5fe70e4e53c6bc
https://doi.org/10.1093/beheco/ari023
https://doi.org/10.1093/beheco/ari023
Publikováno v:
Molecular Ecology. 13:3543-3548
Studies using molecular markers have shown that some grey seal males may be gaining success through exhibiting alternative mating tactics. We estimated the probability of fertilization success of grey seal males exhibiting the primary tactic of femal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f40ad7fcb356ee9c15fbc942856e1211
https://doi.org/10.1111/j.1365-294x.2004.02334.x
https://doi.org/10.1111/j.1365-294x.2004.02334.x
Publikováno v:
Oikos. 105:15-30
In large marine predators, foraging entails movement. Quantitative models reveal how behaviours can mediate individual movement, such that deviations from a random pattern may reveal specific search tactics or behaviour. Using locations for 52 grey s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::454506006faf72c6191fece302771463
https://doi.org/10.1111/j.0030-1299.1999.12730.x
https://doi.org/10.1111/j.0030-1299.1999.12730.x
Publikováno v:
Journal of Animal Ecology. 72:979-993
Summary 1. Air-breathing marine predators can modify their diving behaviour to accommodate different patterns of prey abundance and distribution and may do so at multiple temporal scales (individual dives, bouts of dives and foraging trips). 2. The g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb2edea82cdc18c9e00a0ff5f3a5139b
https://doi.org/10.1046/j.1365-2656.2003.00761.x
https://doi.org/10.1046/j.1365-2656.2003.00761.x
Publikováno v:
Animal Behaviour. 66:777-789
Both body size dimorphism and sex differences in the relative costs and benefits associated with acquiring energy for reproduction have been advanced to explain the evolution of sex differences in foraging behaviour. We examined the extent to which t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3c21e75718075dc7c87a7d22a8be61c
https://doi.org/10.1006/anbe.2003.2284
https://doi.org/10.1006/anbe.2003.2284