Sentences with phrase «seal population in»

«If it continues, if this is the new normal, the sea lion population and the fur seal population in California are going to have severe drops in their overall population,» Johnson said.

The viral strain was almost identical to one that circulated in humans in 1995, suggesting the virus had entered the seal population in that year and remained the same ever since.

Scientists have been monitoring the Weddell seal population in the McMurdo Sound area near Ross Island, Antarctica for several decades.

Over several weeks, about half the harbor seal population in the canal — 700 salmon - fattened mammals — had become lunch.

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.

And anyone with a computer can help scientists track seal populations in Antarctica.

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.

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?

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.

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.

It could be that an outbreak in seals is triggered when the population density exceeds a threshold level, and the virus is introduced into non-immune population,» he says.

Laidre's team looked at what is known about marine mammal populations that play a key role in Arctic ecosystems and human communities, focusing on polar bears, beluga whales, narwhals, bowhead whales, walrus, and six different seal species.

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 orcaIn 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 orcain 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 orcain 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.

«We are not recommending placing rhino herds in Arizona or polar bears in Antarctica,» the group writes, as, for example, the polar bear would then devastate Antarctic penguin and seal populations that have never encountered such a predator.

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.

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.

The findings may also explain why harbor seal populations are declining in fjords whose glaciers have retreated onto land: Without the acoustic camouflage provided by the bubble - induced din, the seals may have a harder time evading their main predator, the killer whale.

Among the many other marine animals dwelling in American coasts whose populations have fallen and struggling to recover or persist are orca, beluga whales, manatees, otters, seals, and sea lions.

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 AlaskIn 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 Alaskin the health of marine mammal populations off the coast of Alaska.

In the sparsely populated Northwestern Hawaiian Islands, where their largest population is found,» National Oceanic and Atmospheric Administration lead scientist for monk seal recovery Charles Littman reported what he called, «The highest levels that we've seen in decades, and in some places, the highest levels in survival that we've seen in 30 years.&raquIn the sparsely populated Northwestern Hawaiian Islands, where their largest population is found,» National Oceanic and Atmospheric Administration lead scientist for monk seal recovery Charles Littman reported what he called, «The highest levels that we've seen in decades, and in some places, the highest levels in survival that we've seen in 30 years.&raquin decades, and in some places, the highest levels in survival that we've seen in 30 years.&raquin some places, the highest levels in survival that we've seen in 30 years.&raquin survival that we've seen in 30 years.&raquin 30 years.»

She has monitored pinniped (seal and sea lion) populations at Point Reyes and elsewhere in central California, and has never personally seen an attack so close, though others who study and tag sharks have.

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.

The northern fur seal population has been in decline in recent years and they are listed as «vulnerable» under the U.S. Endangered Species Act.

As fish populations change in response to these warmer waters, mother fur seals may have a harder time finding the food they need to nourish themselves and their pups.

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 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.

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.

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.

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.

Introduction In the 1960s, northern fur seals (Callorhinus ursinus) successfully recolonized San Miguel Island after the local population was extirpated by hunting.

Travel to the famed Khutzeymateen Provincial Park and view the resident grizzly and black bear populations in their natural environment or, depending on the season, take a whale - watching cruise and view orca whales, humpback whales, porpoises and seals.

The islands became a base for pirates, and later whalers, who also harvested the island's abundant fur seals, and put a significant dent in the tortoise 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 fiord is rich in flora and fauna and outstanding Waterfalls; at times sighting of local wildlife as dolphins (Doubtful Sound is home to one of the southernmost population of bottlenose dolphins), fur seals and penguins (Fiordland crested and blue).

If you look at the shark attack statistics in California, where a few decades ago they went through a similar phenomenon with the seal populations responding to protection and white shark attacks on seals increasing, there was no similar trend in attacks on humans.»

There is rising concern among polar bear biologists that the big recent summertime retreats of sea ice in the Arctic are already harming some populations of these seal - hunting predators.

The seal population off New England has recovered dramatically in the last 10 years or so, and that's probably helped give the white sharks a little extra boost with reliable high quality prey source.

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.

Earlier work by Andy Derocher, Ian Stirling and others had documented the clear reduction in sea ice in Hudson Bay and the subsequent reduction in the period available for hunting seals, and the impacts on the population.

And while life in an icy lake might be tough, writes bioGraphic, «the greatest threat that Baikal seal populations face is pollution from factories situated along the lake's shores.»

A few stay on the ice all year round, but southerly populations survive ashore in the summer, and it is the seasonal winter feast upon seals and other sea mammals that gives them the nourishment to make it to the next breeding season.

Any impact on the populations of tiny crustaceans will affect other creatures higher up the food chain — cod, seals and polar bears — which need fat sources in their diet.