WebJan 28, 2024 · The harbour seal (Phoca vitulina) and the grey seal (Halichoerus grypus) are two phocid species that both range in sympatry in the North Atlantic and can share the same haulout sites as well as potentially similar foraging grounds (e.g. Thompson et al. 1996; Vincent et al. 2024). WebDec 26, 2012 · In the western North Atlantic the grey seal range was limited to the continental shelf edge between 40°N and 45°N and around Flemish Cap, which was an island during the LGM. ... These simple metrics chosen to describe grey seal foraging habitat were determined by the types of comparable information available from both the …
Movements and foraging areas of grey seals in the North …
WebThe grey seal (Halichoerus grypus) is primarily a terres-trially breeding pinniped, although pagophilic (Haller et al. 1996) and aquatic (Hewer and Backhouse 1960; Caudron 1998) breeding occurs in some parts of the species’ range. Males arrive at the breeding colony with large quantities of stored energy and compete for access to females. Studies Webences in the foraging behaviour of grey seals, rather than size differences per se. We will attempt to disentangle sex and body size influences on grey seal foraging by focusing … gas heater on sale
Size and seasonal influences on the foraging range of …
WebNov 14, 2024 · Whilst some work has investigated foraging in grey seal juveniles (>12 months old) and young-of-the-year (YOY; 5 months old) 35,36, and others have studied pup behaviour on and around the colony ... WebJun 20, 2024 · To investigate the relative importance of these sites for grey seals in both the breeding and foraging seasons, the most recent available counts (2024) during the breeding season (pup production estimates; SCOS (2024)) for frequently monitored sites (Scotland and eastern England) were compared to counts of grey seals hauled-out … WebAug 1, 2024 · We hypothesize that the large intraspecific variation in grey seal skull shape may result from balancing selection or phenotypic plasticity, favouring an extremely … david bridal online payment