Sentences with phrase «elephant seal population»

Today, the northern elephant seal population is approximately 150,000, with 124,000 of which in California waters, and is probably near the size it was before they were over-hunted.

The elephant seal population of the Falklands is part of the South Georgia stock, which includes South Georgia, the South Orkney Islands, King George Island, Gough Island and the Valdes Peninsula.

The elephant seal population attracts a population of great white sharks to the islands.

The social system of elephant seals populations is shaped by two factor: land breeding during a short breeding season and strong tendency of females to aggregate when on land.

History and present status of southern elephant seal populations.

The level of isolation of SLI population should be quantified by genetic studies.Currently, an ongoing research project is comparing the genetic structure of SLI population with South Georgia and Valdes Peninsula populations, the two main parts of the South Georgia stock, which comprises about one third of the world wide elephant seals population.

Researchers studying king and emperor penguin and elephant seal populations have had to get up close in order to pick up radio - frequency identifications from tagged animals, which would cause the animals stress.

Not exact matches

«The Red Triangle includes roughly 200 miles of coastline.But it's not the beachgoers and surfers that attract great whites to these waters.It's the rich population of other mammals like elephant seals, harbor seals, sea lions, and sea otters.Great whites prefer to prey on these animals instead of humans.

But perhaps the best boost for the white shark population is the remarkable recovery of a favored prey species, the northern elephant seal (Mirounga angustirostris), from fewer than 100 at the end of the nineteenth century to over 100,000 today.

Since then, the population of northern elephant seals has recovered at an average rate of six percent per year.

The population slowly recovered and the current population of elephant seals is estimated at about 170,000.

During the australian summer of 1995 - 1996 a survey of the whole Falklands coast was conducted by to estimate size of penguins populations: a record of sightings of elephant seals was kept.

The density of females on Sea Lion Island was quite low (about 110 females per km of the coastline suitable for breeding) compared to densities recorded in other sub-Antarctic populations: this low level of crowding of females probably depends on the small population size and the abundance of sandy beaches with a gentle slope, which are the preferred breeding habitat for elephant seal.

The elephant seals of the Falklands were heavily exploited as a source of high - quality oil in the 18th century: the population was very reduced by the beginning of this century, when sealing was concentrated on South Georgia.

Though a complete population count of elephant seals is not possible because all age classes are not ashore at the same time, the most recent estimate of the California breeding stock was approximately 124,000 individuals.

Power analysis of population trends of southern elephant seals of the Falklands.

Sea Lion Island shelter a small, localized population of elephant seals, that we are studying in great detail by marking almost all breeding individuals every season, by spending a large amount of time in the field doing behavioural observations, and by using a mixture of different techniques to gather accurate measurements of different aspects of individual phenotype of males and females.

We wish to broaden our knowledge of elephant seals of the Falkland Islands by carrying on a survey of the whole population.

Molecular ecology of southern elephant seals (Mirounga leonina): mating system and population genetic structure.

Once home to a large population of elephant seals, hunters greatly reduced the seal population by overhunting the species.

the first base of information on demography, socionomy and breeding biology of the elephant seals of the Falklands, a population previously completely unknown

The lack of information about the population of elephant seals, and the potential risk to its survival due to the recent changes in lifestyle and economy of the Falklands, make a complete survey compelling.

As stated by the International Union for Conservation of Nature (IUCN), which is the world's main authority on the conservation status of species, the northern elephant seal has recovered from near extinction and population growth and is expected to continue over the coming decades.

The Channel Islands are home to the world's largest populations of northern elephant seals and California sea lions.

Staggering populations of over 70,000 California sea lions, 5,000 northern fur seals, 50,000 northern elephant seals and 1,100 harbor seals breed and pup on the island each year.

It provides breeding and feeding grounds for at least twenty - five endangered or threatened species; thirty - six marine mammal species, including blue, gray, and humpback whales, harbor seals, elephant seals, Pacific white - sided dolphins, and one of the southernmost U.S. populations of threatened Steller sea lions; over a quarter - million breeding seabirds; and one of the most significant white shark populations on the planet.

But it is its population of 10,000 + Guadalupe fur seals (Arctocephalus townsendi)- their only major breeding site - and northern elephant seals (Mirounga angustirostris) that attract the sharks.

San Simeon, California Winter is a great time to observe one of California's largest resident populations of elephant seals.

We've also learned in recent years how to track elephant seals, sea birds and some whale populations in ways that will change the map of wildlife protection, literally.