http://earthguide.ucsd.edu/elephantseals/lifestyle/index.html WebB+ seals, 0.86±0.3ms−1 for the control seals and 0.82±0.3ms−1 for the B−seals. All the B+ seals ascended faster than they descended, while four of the five B−seals descended faster than they ascended. There was a significant negative correlation between buoyancy and descent rate, with less buoyant seals descending faster than more ...
Northern Elephant Seal – Oregon Conservation Strategy
Webnorthern elephant seals, including year-round tracks of some individuals, to test the hypothesis of double migration. MATERIALS AND METHODS We glued geographic-location, time-depth re-corders (terminology of DeLong et al., 1992) to the dorsal pelage of 65 adult northern elephant seals at San Miguel Island (34'02'N, 120'26'W) WebAdult males measure up to 4.5 m (20 ft) long and weigh up to 2300 kg (8000 lb); adult females measure up to 3.6 m (11 ft) long and weigh up to 750 kg (2000 lb). The Northern elephant seal coat is dark gray to brown. Males can live … harvesting chaga mushroom
Elephant Seals Victoria, BC Eagle Wing Tours
Web25 de jun. de 2002 · Abstract The northern elephant seal (NES) suffered a severe population bottleneck towards the end of the nineteenth century. Theoretical expectations for the impact of population bottlenecks include the loss of genetic diversity and a loss of fitness (e.g. through a disruption of developmental stability); however, there are few direct … WebAge-specific survival varied widely over the years, with the following range of values being observed: 19.9-48.7% to age I; 11.1-37.4% to age 2; 7.1-28.9% to age 3; and 5.0-26.5% … Elephant seals are very large, oceangoing earless seals in the genus Mirounga. Both species, the northern elephant seal (M. angustirostris) and the southern elephant seal (M. leonina), were hunted to the brink of extinction for oil by the end of the 19th century, but their numbers have since recovered. They are the largest extant carnivorans, weighing up to 5,000 kilograms (11,000 lb). harvesting cereal rye for seed