As the weather is up and down, cold one day and then extremely hot the next, no matter the short changed in weather, climate is a huge deal breaker for the future of the polar bear. Are humans responsible for the future of the big white bears that roam around on ice all day trying to survive? Maybe we are, maybe we are not, but polar bears are diminishing due to fluctuating environmental changes, gas and oil activities like drilling in the Atlantic Ocean, and their survival rate is decreasing as a result of starvation. Climate change has been one of the top leading causes of sea ice loss. According to Polar Bear International a study found from satellite pictures starting from the 1900s to now show major sea ice loss. Our greenhouse gases are affecting the polar bears habitat they breed and live off. When the weathers warmer, the ice melts. The loss of ice causes polar bears to prey on land. Some are left in the ocean trying to find ice and subsequently end up drowning. Another study found Polar Bears International reported that in the summer of 2012 loss of sea ice was at the lowest and broke all previous records. As a result of ice loss, female polar bears are pushed to their limits and have no other choice than to den on land rather than their natural habitat on ice. This leads to different food for polar bears to prey on. Climate change is already a big factor for diminishing polar bears, but another huge cause is gas and oil activities in their own habitat. When oil spills are present in the Ocean near polar bear populations it takes months to almost years to clean up the spill. If oil is on their coats, they cannot regulate their own body temperatures, making them almost freeze to death (Fueling Extinction). With spills it... ... middle of paper ... ...ges and the data is lacking. (Mustain, “Polarizing Debate: Polar Bear Status Roils Alaska). While some may be so-called increasing, according to the Polar Bear Specialist Group reported that the last time polar bears were recorded as increasing was in the 1950s and 1960s. That wasn’t even scientifically recorded, that was an estimated number that was written down by polar bear hunters. Thus leaving us with no other choice than to accept that polar bears are decreasing. For now, all we know is our footprints are leaving a mark behind us, and it is affecting the polar bears who might not make it much longer unless something is changed. The roller coaster climates, oil and gas activities in the ocean around polar bear populations, and polar bears doing all they can to survive. Humans are responsible for what the future holds for the beautiful white fluffy polar bear.
The one way to keep bears and humans safe and living in the same environment is learning to understand them and being able to tolerate them. If people don’t do these things theses beautiful animals will begin to decrease in numbers. While there are a lot of black bears in Alaska, an estimated 100,000, hunters believe that you can just hunt and hunt and the population will decrease to average, but the plans of some hunters seems just over the top of making these bears go on to the endangered species list. But with the help of people and cooperation the Black Bears will continue to live in Alaska.
“Those searching for unmistakable evidence of the global climate crisis should pay a visit to the Arctic. The Arctic is warming twice as fast as the rest of the world. The average annual temperature in Barrow, at the northern-most tip of Alaska, has increased 4.5 degrees Fahrenheit in the last 50 years” (Noblin, n.d.). Polar bears have been threatened in the past by unregulated commercial and sports hunting in the 1960’s and 1970’s. They were being wiped out quickly with modern methods of hunting, including aircraft, and were facing a huge loss in their population. Fortunately the 1973 Agreement on the Conservation of Polar Bears was established which was signed by Canada, Norway, Denmark (for Greenland), the United States of America, and Russia
...ls, it does not only affect the size of seal population but also it affects the Inuit people because it decreases the amount of seal oil and seal pelts being produced, and it also causes species that depend on baby seals to have a loss in their diet too. The seal population may not seem like it is diminishing however at this rate, the baby seals are faced with the possibility of becoming extinct. If the seal hunt was to continue at this frequency and with global warming also playing a major role into the death of seals as ice glaciers are melting, the population of seals can become extinct within the next few decades. Each year, there are hundreds of thousands of baby seals killed by the Canadian government and even though, the government is making profit from this industry, they failed to consider how is poses a significant long-term threat to their whole specie.
...t of Biological Sciences with the University of Alberta. He has studied polar bears in the Canadian Arctic for over 40 years. His studies have linked the loss of sea ice due to climate change to the decline of the polar bear population.
Polar bears don't just live on ice, they use the ice as an advantage to catch prey such as seals. Polar bears have adapted to living on ice and being able to withstand the cold weather. Now that the climate is changing at a fast pace, polar bears are losing their land because its melting, leaving them with no place to walk, sleep and taking away their way of hunting prey. (polar bears international, 2015) This is all happening so fast that there is no way polar bears will be able to adapt to the new environments, causing extinction. The arctic is warming twice as fast as the rest of the world is due to the build up of greenhouse gases in the atmosphere, making it a problem happening very rapidly. (Bagley, 2015) Temperatures in the Arctic region have risen 7 degrees Fahrenheit over the last half century. (Bagley, 2015) Population among polar bears has decreased up to 40% in some areas. (Bagley, 2015) With the climate getting warmer, ice is melting earlier every spring, and takes longer to freeze every winter which is disrupting the feeding and breeding cycles of many different arctic species. (Bagley, 2015) Polar bears have adapted ways to survive in the cold harsh arctic environment including having the ability to cool down their outer skin to keep their vital organs warm when they are submerged in cold water. Though this may help the delay of hypothermia as they have to swim greater distances from ice shelf to ice shelf, that doesn't mean polar bears can swim forever. (Bagley, 2015) One bear that a scientist studied swam 500 miles over nine days, but lost 22% of her body weight, and lost her cub.(Bagley, 2015) Many different scientists have been studying the behaviour of the polar bear to see if it could adapt in any way to survive. Eight U.S scientists made a hypothesis consisting that polar bears could lower their metabolic rates enough to survive as food
Hunting Black Bears and Grizzlies could be affecting their population that is already low, but hunting with bait, dogs, different kind of guns and tactics, is negatively affecting how many are killed during a hunting season. The numbers are low there is a chance the bears are outnumbered by hunters and there tactics. The number of hunters privileged with a bear tag should be limited this could negatively or positively affect the populations.
The shift in seasonal ice pack in the West Hudson Bay has changed polar bear behavior, reduced prey availability, lowered birth rate, and a positive effect on polar bear and human conflict. Polar bears require seals and other high fat animals for their survival in the arctic region. The decrease in ice packs also reduces prey abundance and increased bear mortality. Seasonal break up rate has increased and reduced seal availability within the Arctic region. The Lack of food has decreased female polar bear sexual reproductively as well as body weight. Finally, polar bears are encroaching onto human territory. Human safety is being threatened as bears go on land, instead of their usual habitat, to forage for food. Humans are forced to kill bears to protect themselves. Lastly, polar bear’s future is grim. Studies have predicted bears will lose a third of their habitat by 2100. Soon these polar bears will become extinct in the 6th global mass extinction. Humans must reevaluate their population output and seek ways to preserve the polar bears for future generations to
For years, we have heard of the devastating effects of global warming and how the melting of the polar ice caps will cause severe climate changes. One animal that has suffered most from global warming is the polar bear. Global warming has caused the polar bear population to decrease due to the results of having to swim longer distances, loss of habitat, and lack of mates to reproduce offspring. Global warming has caused this species to become endangered and has some attention with social media. Global warming has caused much damage to the polar bear population due to the warming of their habitat.
Unfortunately, that is the polar bear (Defenders of Wildlife, 2013). The climate change endangers the species, so much so that the animals have become one of the icons that conservationists use to illustrate the threat posed by climate change (The Huffington Post, 2014). You cannot protect a species from the impacts of climate change without addressing the issue of climate change, itself (Defenders of Wildlife, 2013). Large carnivores are extreme indicators of ecosystem health (WWF, n.d.). “As the Arctic sea ice melts, the polar bears lose their primary hunting ground — not to mention their most plentiful and nutritious prey. It remains a question whether they will be able to adapt to changing conditions and survive” (The Huffington Post, 2014). A polar bear at risk is frequently a sign of something wrong somewhere in the arctic marine ecosystem! A polar bear at risk is frequently a sign of something wrong somewhere in the arctic marine ecosystem (WWF, n.d.)!
There have been negative biosphere impacts especially in the Arctic because “greenhouse gas concentrations are driving ocean systems towards conditions not seen for millions of years (Shah 5). Conditions such as sea levels are rising which cause polar caps to melt much faster. These polar caps are important to our artic species the thought of having “ice-free summers in the Artic imply loss of an entire biome” (Shah 2). For example, animals like polar bears that have adapted life on top of ice are in danger of extinction. The melting of ice caps and glaciers are causing polar bears to lose their homes. The extinction of one species can spell trouble for other life in the ecosystem. However, polar bears are not the only species in danger.
bears live past 15 to 18 years. The oldest known polar bear in the Arctic
The Arctic region is home to a variety of valuable animals and plants, including polar bear, seal, and so on. The ecosystem of the Arctic region is fragile because these animals are evolved to live in extreme conditions. With the climate change, many animals are endangered. Ice is the habitat of polar animals because they have to rely on sea ices for resting, food, and reproduction. With the climate change and the decrease of sea ice, the number of polar animals is decreasing and their health is threatened. For example, the average weight of female polar bears in 1980 was about 650 pounds, but the number reduced to about 500 pounds in 2004 (Djoghlaf 15). The earlier breakup and later condensation of sea ice shortens the hunting season of polar bears. Polar bears mainly feed on seals that indwell icy land. The melting ice reduces the number of seals and food intake of polar bears. In addition, polar bears are used to living in ice caves. The rising temperature causes the collapse of ice caves, which can kill baby bears. The climate change is negatively affecting the biodiversity in the region and will definitely harm the ecosystem
The polar regions are most affected and vulnerable to the warming temperatures because the poles are covered in ice. The world’s ice sheets are melting faster than ever and temperatures in the Arctic region are rising twice as fast as anywhere else on Earth according to the NRDC. This will have a serious impact on people, wildlife and plants in that region. The National Climate Assessment has said that “By the year 2100, it 's estimated our oceans will be one to four feet higher, threatening coastal systems and low-lying areas, including entire island nations and the world 's largest cities, including New York, Los Angeles, and Miami as well as Mumbai, Sydney, and Rio de Janeiro”. Polar bears are in great threat as the ice sheets melt because they use the ice to travel across the land and hunt. As the sea-ice platforms move further apart, the swimming conditions become more dangerous. The U.S Geological Survey done by the National Wildlife Federation predicts that by the year 2050, two thirds of all polar bears will disappear. Researcher Bill Fraser has tracked the Adelie penguins in Antarctica and reported the numbers have fallen from 32,000 to only 11,000 over the last 30
other species to go extinct as well. Humans can be held responsible for the temperature change
Overall climate change is going to continue, we might not be able to stop it but we sure can slow it down and if we can slow it down we will be able to keep many amenities that we need and keep most of our ecosystems safe. Animals are a huge part in human society and once we realize we are damaging their environment and by damaging their environment we are risking losing the essentials we need to survive. Humans need to reduce the use of carbon emissions and by doing that will greatly increase the chances of slowing down rapid climate fluctuations.