Case Study: The Channel Island Foxes

An ecosystem contain biological communities and abiotic factors that interact with each other. However, Introduced pest species in Australia have always been a major issue due to the unique ecosystems that have developed, undisturbed over millions of years, due to Australia's geographical isolation. This is especially evident in the introduction the European red fox in Australia, which has prompt negative changes to the population of the Long-nosed Bandicoot due to the predation by these foxes in the Field of mars and around Australia. The disruption the fox foxes have on the Long-nosed bandicoot can also result in sever cascading effects on the rest of the ecosystem, including abiotic factors like the soil and biotic factors like other native flora and fauna

Among the many species that live on the tundra, there is the arctic fox (scientific name alopex lagopus). Staying within the tundra (both arctic and alpine) biome, the arctic fox can be found in parts of Canada, Russia, Greenland, Svalbard, and Alaska. Arctic foxes are known for their small furry bodies that are covered by a thick white or blue-gray coat, short pointy ears, and bushy tails. Their coloring actually allows them to camouflage into the ice, snow, and will change to a brown/gray during the summer in order to continue camouflaging. This in turn helps them with their predatory nature.

The Grey Fox is distinct for any other species of fox due to the greyish white fur along its back. The fur on its chest, back of ears, underside of the tail, legs feet, and neck are a reddish brown. On each side of its muzzle, there is a black band. The Grey Fox also has strong, short legs that are used for climbing trees. Their feet also have hooked claws that aid them in tree climbing. An adult Grey Fox is 21-30 inches long, with a tail another 11-16 inches long, they also weigh 7-11

Have you ever thought of bald eagles not being around anymore in this century? Some people must’ve thought about this when they couldn’t see their national bird flying around or caught on camera. Maybe the everyday things they were doing were harming the poor birds?

Many threats to the red wolf include loss of habitat and ecosystem due to human activities such as deforestation and degradation of environment agriculture and shooting as well as climate change as red wolves generally prefer swampy wet lands.

The second reason why the bald eagles became an endangered species is hunting. Before the bald eagle was declared an endangered species, they were hunted as any other animal was. Despite being the symbol of the nation, the eagles were still considered a nuisance and were shot on sight. This ignorance brought the bald eagle closer to becoming an endangered species.

On the Channel Islands, the golden eagle predation had been confirmed as the primary mortality

increase in hawks, weasels, badgers, and foxes to this new habitat. Eagles and bear populations

Species often face multiple threats. We considered the relative impact of three major threats on populations of the San Joaquin kit fox. This species was once widely distributed across the southern San Joaquin Valley, but agriculture and development have replaced much of the now endangered subspecies’ habitat. We modeled impacts of climate change, land-use change, and rodenticide exposure on kit fox populations using a spatially explicit, individual-based population model. Our study indicates that landuse change will have the biggest impact on kit fox populations, with the potential to decrease populations by approximately 9% under a compact growth scenario or 15% under a business-as-usual scenario. 55% of the best kit fox habitat also has

The animal I was given for this assignment was the Channel Island Fox. They are considered to be near extinction animals with nearly about 2,500 fox left (last checked 2008). The Channel Island Fox is a type of fox that only lives on the Channel Islands, which is located around the coast of Southern California in about 19 to 61 miles away from the continental state. On a clear day in California, many visitors have the chance to see the islands over the shores. Within the eight islands, only six of the islands have the Channel Island Fox on their land. The six islands are San Miguel, Santa Rosa, Santa Cruz, Santa Catalina, San Nicolas and San Clemente. Each island has different features which has given each island fox a different trait compared to each one, but they are still considered as Island Fox.

It was only less than a century ago that our nation's bird, the bald eagle, was almost hunted to the edge of extinction. Thankfully, conservation efforts were realized and now, after many years of hard work, the bald eagle's population has once again become stable. However, this might not last long as the rising wind industry could potentially wipe out all the hard work done from the conservation efforts. This is what David Yarnold, the author of "Don't Throw Bald Eagles Under the Bus," is worried about, and he expresses his viewpoint through various literary devices including allusions, hard facts, and appeal to emotions.

Throughout my childhood when everyone saw a bald eagle, they would be awe in. People always said something like, “Wow that’s an amazing sight. There aren’t too many of those in the US anymore.” I’ve always wondered why this is. It wasn’t until recently that my interest in bald eagles was re-introduced. About a few weeks ago during lacrosse practice, a bald eagle was soaring above Sodexo Field. My coach goes, “Aren’t there only like 20 of those left?.” At the time I knew that bald eagles were taken of the Endangered Species List, but that’s all I knew. I figured this would be a good project to research and get the full history of bald eagles.

For example, their concept indicates that prey species will alter their foraging habits to the features of the terrain in order to avoid areas with a high risk of predation. Predation risk in a changing environment is also focused on by the authors. There are many environmental variables that may influence the degree of predation risk such as weather, wildfires, and other conditions that influence ungulates’ access to vegetation. Finally, the authors focus on ecosystem responses to trophic cascades—primarily on riparian functions and on beaver and bird populations. They also inform us that wolves may represent an indirect control on beaver populations as well as cause ungulates to avoid some riparian areas—therefore reducing herbivory on wooden browse species.

“The world wouldn’t be the same without BFFs,” black-footed ferrets. These important little animals are a keystone species in a prairie ecosystem. A keystone species is one that plays a unique and crucial role in its ecosystem. Without that species the ecosystem would be quite different. The black-footed ferret is a member of the weasel family. It is the only wild ferret species that lives in North America and one of the three remaining ferret species in the world. This makes it even worse that the black-footed ferret is one of the most endangered species in the world with only 750 left living in the wild. The black-footed ferret which lives in a prairie ecosystem is a keystone species and the loss of it entirely would be detrimental to their

Dean et al. stated that there were around 61 dead sea otters that was collected in the northern Knight Island area, and they estimated that there was another 24 sea otter bodies that came from this area that were found in another location that was not Knight Island (Dean et al. 2000). 19 sea otters were rescued and nourished back to health from the Knight Island area which would all total to 165 sea otters found in that area (Dean et al. 2000). There was a survey performed between the years of 1993 to 1998 on the island and around it was observed that there were around 90 sea otters in the area, and in 1997 and 1998 there was only 76 sea otters (Dean et al. 2000). Before the oil crisis transpired there was about 237 sea otters found near the