Sentences with phrase «of subadults»

Heavy ice conditions in the mid-1970s and mid-1980s caused significant declines in productivity of ringed seals, each of which lasted about 3 years and caused similar declines in the natality of polar bears and survival of subadults, after which reproductive success and survival of both species increased again.

Of green turtles from warmer northern nesting beaches, 99.1 % of juveniles, 99.8 % of subadults, and 86.8 % of adults were female.

[22] The high predation pressure has clear impacts on the demography and life history of crabeater seals, and has likely had an important role in shaping social behaviors, including aggregation of subadults.

Age was the second most frequently identified risk factor, with juvenile eagles electrocuted at approximately twice the rate of subadults or adults.

Not exact matches

Most impressive of all is a T. rex growth series, the world's only array of dinosaur specimens showing the same species at different stages of life; it includes the youngest T. rex ever found, a rare juvenile, and a subadult named Thomas.

Researchers noted that females with young cubs tended to swim less to avoid submersion of youngsters in cold waters, while lone subadults swam as frequently as lone adults.

Because more than 63 % of the collisions involved calves and subadults, the scientists conclude that these younger animals are particularly susceptible to being struck, most likely because they spend more time at the surface to breathe than do adults.

Persistence of maternal effects in baboons: Mother's dominance rank at son's conception predicts stress hormone levels in subadult males

In otariid species like the South American and Australian sea lions, non-territorial subadults form «gangs» and cause chaos within the breeding rookeries to increase their chances of mating with females.

In a large sample that also included subadults, Goldberg et al. (2000) reported mean sizes of 40.2 mm SVL for males and 40.5 mm SVL for females (n = 78, 96, respectively).

In contrast to the subadult I encountered, other bears at Brooks Camp, like 410, appear to be very tolerant of people and are often described as human - habituated.

Fall Hall - Out September — November: Young - of - the - year, juveniles, and subadults too young to take part in the breeding season haul - out to rest.

In all, ten elephant seal weaners and one subadult California sea lion (nicknamed Farewell) were the stars as they all lumbered off of our trucks and headed for the cool ocean water.

Incursion of Leptospira interrogans, serovar pomona into the Pacific Northwest by migratory subadult and adult California sea lions (Zalophus californianus).

Bears that successfully killed and ate adult or subadult ringed seals either gained or maintained body mass, whereas bears that only scavenged or showed no evidence of eating lost mass.»

The question is, why were Southern Beaufort Sea polar bears off Prudhoe Bay (see map of the study area below), still hunting and capturing only adult and subadult ringed seals from sea ice leads when newborn ringed seal pups and their mothers should have been plentiful and relatively easily available in their birth lairs on the sea ice (see below)?

A minimum of 2,000 adult / subadult and tens of thousands of Laysan Albatross chicks were lost.