Sentences with phrase «of seal populations»

By investigating changes in the food web, particularly foraging and spatial patterns of seal populations, we can compare with historic samples and changes seen in the West Antarctic.

Predicting the future of mammalian populations requires long time series of demographic and life history parameters: for example, the short term stability of the effective size of our seal population may be confirmed in the long term only when long time series of number of breeding females, pup mortality rate, and adult survival rate will be available.

Not exact matches

Drones — or unmanned aerial vehicles (UAVs), in the industry's preferred parlance — are inspecting smoke stacks and monitoring seal populations, and will soon explore the insides of active volcanoes.

«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.

in revelations, jesus opens his daddy's seven seals and murders 2/3 of the earth's population via war, famine, pestilence, death, etc. loving and compassionate?

A seal of approval from such an organization may not be legally required, but it does add credibility and marketing appeal to the consumer population.

Still, the lengthier, more physically challenging journeys in some years may explain why populations of these northern fur seals — considered «depleted» under the Marine Mammal Protection Act — have not rebounded in recent decades despite a hunting ban.

Researchers report in Conservation Letters this week that the monk seal population in Hawaii's Papahnaumokukea Marine National Monument is shrinking by about 4 percent a year, while a sub-population of monk seals in the main Hawaiian Islands next door — where fishing, development and boat activity are permitted — is increasing by 7 percent a year.

Ingmar Bergman's famous 1957 movie The Seventh Seal takes place during the 14th century, when Europe is in the midst of a major epidemic of the bubonic plague — the Black Death — which ultimately killed about half the population.

When the researchers watching this population of seals came by on December 5, they found that No. 29 did not have a pup.

The die - off, which has subsided after claiming as many as 20,000 victims, is another blow to the long - term prospects for the Caspian seal, a population of around 400,000 animals that is listed by the World Conservation Union as vulnerable to extinction.

As sea waters in the South Atlantic warm, the amount of krill available for seals drops, leading to a smaller yet more genetically varied population

As populations of sea lions and seals in northern habitats continue to decline, satellites are providing scientists with a better understanding of the animals» feeding patterns.

In an op - ed piece in the Seattle Post-Intelligencer, Rose says overfishing and pollution are more important and more likely causes of population decline among seals and sea otters in the North Pacific than are orcas.

• In the Northern Pacific and the southern Bering Sea, killer whales have been linked to collapsing populations of fur seals and harbor seals.

Another problem at Signy is the booming population of fur seals.

While the effects of human activity on the seal population can be detrimental — for example through a high rate of fishing bycatch mortality as observed on Lake Saimaa — a novel conservation method can help the seal population to cope with climate change.

Though Estes can't prove it, he thinks the killer whales subsequently turned to other populations of marine mammals, first decimating seals and sea lions before doing the same to otters.

First reported by Columbus in 1494, the Caribbean monk seal ranged throughout the Caribbean with an estimated population in the hundreds of thousands.

As part of the Weddell Seal Population Count Project, citizen scientists can count the seal population over time in several traditional haul - out locations thanks to these satellite imaSeal Population Count Project, citizen scientists can count the seal population over time in several traditional haul - out locations thanks to these satellite imaseal population over time in several traditional haul - out locations thanks to these satellite images.

Another possibility is that the recovery of seal and sea lion populations off the coast of California, thanks again to successful marine protection policies, are giving the sharks more reason to stay in these waters.

The paper reviews population sizes and trends over time, if known, for each group, ranging from millions of ringed seals to fewer than a hundred beluga whales in Northern Canada's Ungava Bay.

These so - called urban heat islands result from various factors, such as population density, surface sealing, thermal radiation of buildings, industry, and transport as well as lacking vegetation.

Although two of the orca populations eat only fish, there was no genetic evidence that they have diverged from those that dine on seals, the team reports online this week in the Proceedings of the Royal Society B.

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.

The findings show that seals are having no significant impact on populations of the most popular species of fish caught for commercial purposes along the south and west coasts of Ireland, from counties Galway to Waterford.

But they would need an immense omelette to replace a seal breakfast and this type of mass egg hunting can devastate nesting bird populations.

Also, why did traditional Eskimo populations, consuming up to 75 % of their total caloric intake from fat (mostly from whale blubber, seal fat, organ meats, and cold water fish), display superior health and longevity without heart disease or obesity?

The fact that the campus was close to where she lived and serviced a variety of diverse populations just served to seal the deal for her.

It's most compelling, and often frustrating, as a portrait of a rural Inuit population that relies on sustainable seal hunting for food, community and economic survival.

Elephant seals are even helping track the size and health of U.S. salmon populations.

As the alleged evidence that feral cats are a major threat to wild bird populations evaporates, ailurophobes have amplified claims that free - roaming cats are to blame for outbreaks of the parasitic protozoan infection Toxoplasma gondii that were first found to afflict California sea otters in 2002,» causing about 17 % of identified deaths, and have killed at least eight Hawaiian monk seals in 2015 alone.

In a second study, also funded by foundation, the researchers evaluated the extent of seal and sea lion species with the infection, the timeline of its emergence, and the role that PDV may play in the health of marine mammal populations off the coast of Alaska.

Meanwhile, Wolf continued, «The population of monk seals is actually increasing.

Since opening the hospital two years ago, The Marine Mammal Center's veterinary experts have successfully rehabilitated more than 1 percent of the population, returning 15 healthy monk seals back to the wild.

Nearly 30 miles west of the Golden Gate Bridge, a growing population of feisty, fish - loving northern fur seals is waddling around the craggy Farallon Islands.

But animal populations also experience wide - spread hunger, and the hundreds of emaciated young seals and sea lions stranded on California beaches in the past year were a poignant example.

Around 15 % of the world's seal population live here, so be sure to spend an afternoon admiring these wonderful animals lazing on the shore.

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.

It's also home to some of the area's seal population, as well as great restaurants, boutiques, and attractions.

Many were also the target for commercial industry, leading to a sharp decline in all populations of exploited species, such as whales and seals.

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

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.

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.

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.

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