In Wisconsin the only state-endangered mammal is the American Marten. There are many theories on why the Marten has been having a rough time being reintroduced into the northern woods of Wisconsin. One of the theories is the Martens competition with Fisher, they exhibit overlapping niches and have developed a competition of the struggles for resources. However, they do coexist in Canada in have kept stable populations. The Marten doesn’t only have to face competition to hinder its effort to be reintroduced to the land it also faces climate change hurting the way fishers survive and thrive during the winter. As stated earlier the Marten and Fisher have very similar niches. Which means their diets are almost identical, their diets consist …show more content…
Environmental changes due to our climate warming is causing terrible effects on the Marten population in the northern reaches of Wisconsin. What climate change is doing to the habit in which the Marten is living in is changing the amount of snowfall the regions in which the Martens are living in are acquiring. Looking at figure 3 you can see that the total snowfall in the two regions where Martens were reintroduced showed significantly less snowfall accumulation in present day compared to the 1980’s. This is extremely important to note because this change in snowfall can deteriorate the critical zone called the subnivium. The subnivium is the seasonal microenvironment underneath the snow (Pauli et al., 2013). This is a small zone where plants and small mammals thrive during the winter. It should be stated that the subnivium insulates the ground creating a pocket of warmth that allows these organisms to survive the harsh Wisconsin winters. The way a subnivium is formed is based on snow duration, density and depth (Pauli et al., 2013). But this is where climate change comes into play. It is causing snowfall to decrease, the time snow is present is decreased and the density of the snow is lower (Pauli et al., 2013). Having these three factor decline is getting rid of the refuge of the subnivium and killing organisms that thrive there. One such organism is the American Marten. These mammals are small enough to crawl down tree trunks where the snow is melted to gain access to the subnivium. This is where the Marten hunts mice and other small mammals to its heart's content. But with the loss of the subnivium Martens can’t hunt in their little paradise. They will have to find other places to hunt and find prey to satisfy their caloric needs. This is where the Fisher has the advantage, since they are too large to access the subnivium. The Fisher
Today one is lucky to see a deer in Washtenaw country, typically the most wild animal someone would come in contact with would be a squirrel in the daytime. That’s not the case for the little island in Lake Superior. Over 1500 moose call the island home. Nearly that many beaver do as well. At one point,
My name is Zachary Rowe, I am going to talk about the global warming weather effects in Alaska and how it has affected the population of various living animal species. The number of large predators living in the southern Beaufort Sea of Alaska has decreased from 1,500 animals in 2001, to just under 900 in 2010. As the species are decreasing in numbers, they are now listed as vulnerable by the International Union for the Conservation of Nature. Another problem in 2013, a report by the National Oceanic and Atmospheric Administration have seen a decline in reindeer inside Alaskan boundaries. These aren't the only species whose populations has
The Nazi Germany envisioned that the population under its control, and future generations, would have absolute loyalty to Adolf Hitler, the administration, and Nazi standards. In order to accomplish this ambition, comprehensive indoctrination of the youth into Nazi ideology was a priority, and the youth of Nazi Germany were a particular emphasis of the Nazi administration’s propaganda (The National Holocaust Centre & Museum, Paragraph 1). In the novel “All the Light We Cannot See”, by Anthony Doerr, an issue of indoctrinating the youth has been introduced in the novel. Since the 1920s, the Nazi German Party has targeted the German youth as a special audience for its propaganda of messages.
The state of Wisconsin has experienced many changes as the result of geological processes over a span of millions of years. These geological processes include periods of glacial formations that have shaped Wisconsin's land. Many of Wisconsin's land formations have been caused from previous glacial periods. These glacial periods have affected the geology of the landscape by the spreading, retreating, and melting of ice. A variety of land formations have formed from these glacial periods including the formation of islands, mile-long canyons, and depressions.
Over the past several years, the gray wolf, native to the Wisconsin area, has been listed federally as an endangered species due to the graphic and horrific treatment they had received during the industrialization periods of America, when they were frowned upon and hated because they are predatory creatures and did, on occasion, attack livestock and pets. Because the government was encouraging the hunting, including bounties for the animals, the wolves were hunted to near extinction. However, now Wisconsin faces a new problem. With the reintroduction of the wolves to the state, and their continued endangered status federally, the population has increased well beyond expectations, reaching what could be considered a problematic state. A
The thesis of this article is that wolves, once endangered, have come back and started to flourish causing mixed feelings for locals and biologists. Wolves were once hunted because one, to protect livestock, and two, they were seen as pests and/or vermin. The government then put wolves under the endangered list to try to save them. Since then, wolf populations have multiplied.
Global temperature increases and associated increases in precipitation in northern Nova Scotia will likely have detrimental impacts on already threatened species. The Canadian Lynx population is decreasing quickly due to human hunting for its fur and its habitats being destroyed forcing them to continuously migrate north. They have evolved to thrive in snow cover and cold temperatures with their large snowshoe-like paws and thick fur, which gives them an advantage to capture prey compared to other predators such as coyotes or bobcats ("Threats To Lynx" 2012, Hoving et al. 2003). The lynx is a specialist predator focusing on the snowshoe hare as its primary source of food. The hare and the lynx have a very interconnected population cycle that lasts roughly 10 years (Yan et al. 2013). Hares experience large fluctuations in their population cycle based on a number of factors that influence the ecosystem. When hare populations are in decline, in periods where nature must regenerate, the lynx population is also shown to decrease, and vice versa with an approximate two year lag period for the lynx (("Lynx-Snowshoe Hare Cycle | Environment And Natural
I am going to tell what climate change has effect on the Midwest and how it is going to affect the temperature, precipitation in the future and human health, water resources, the great lakes, agricultural and ecosystem, and how it has increased rainfall and flooding and forest composition. More than 61 million people live in the Midwest and it resides in the states of Illinois, Indiana, Missouri, Iowa, Minnesota, Wisconsin, Ohio, and Michigan. The temperature in the Midwest is going to increase more in the northern areas and in the southern areas there will be more number of days of 95 degrees and less number of days below 65 degrees and that could cause more energy uses for air conditioning. The precipitation in the future is going to have more heavy downpours in the winter and spring and it will cause more drier conditions in the summer in the southern areas.
Reintroduction of wolves brought about recovery of plants and animals in Yellowstone National Park. In 1990s, deer were overpopulated due to absence of its predator, wolves. Regardless of people’s efforts, the number of deer kept increasing. As a result,
Recently, the environment issues are becoming more and more serious. The increasing of greenhouse gas emission and pollutions lead to many environment problems related to climate change. The climate change impact our urban life in many aspects. As the biggest metropolitan area in US, New York-Newark-Jersey City, NY-NJ-PA Metropolitan Statistical Area has a population about 19,831,858 by year 2012 (U.S. Department of Commerce, US Census Bureau, 2012) The population has been increased by 1.35% since 2010. The increase of population again increase the consuming of resources and increase the carbon dioxide of the statistical area which aggravate the global warming. At this moment, planners and government should take the impacts from climate change that will be critical concern to our area into consideration and applying a climate change management planning policies.
Such a broad spectrum of diverse habitats occurring within a single protected unit is unparalleled in North America, and perhaps in the entire circumpolar north.” (Arctic Refuge: Oil and Gas Issues). The refuge is a delicate treasure there are few like it in the world and its existence is threatened. The ecological makeup is one of a kind. The refuge contains five different ecological regions, which are home to 45 species of land and marine mammal ranging in size form a pygmy shrew to a bowhead whale. The refuge is also well known for polar, grizzly and black bear, wolf, wolverine, dall sheep, moose, muskox, and caribou. It is also home to 36 species of fish and 180 bird species (U.S. Fish and Wildlife Service).
Arctic ice caps are melting, causing many animals to find either a new habitat or new food, which are both extremely challenging. For example, in Document A, sea lions
The Canada Lynx, with its characteristic silver-brown coat and tuffed ears, is coming face to face with the threat of extinction – at least in the woods of Maine. The population of this North American mammal, which can be found in Canada, Alaska and some parts of Northern U.S., is quickly declining due to environmental changes taking place in their habitat. In an effort to fight back, the U.S. Fish and Wildlife Service is teaming up with private landowners to recreate the habitat the Canada Lynx needs to hunt and prosper.
The Marten lives all over Canada and Alaska. It can also sometimes be found in Oregon, Seattle, and Upper California. It will live anywhere in
"We call them dumb animals, and so they are, for they cannot tell us how they feel, but they do not suffer less because they have no words” (Anna Sewell). There is undeniable evidence that animals are being affected by climate change. Even though the effects are difficult to measure, there are many different ways animals are being affected. With the loss of predator and prey species it affects the life cycles in the food chain. The earth’s climate change causes habitats such as snow, ice, or forest areas to alter, resulting in loss of habitat and food accessibility as well as causing extinction.