The Vancouver Island Marmot ( Marmota Vancouverensis )

The species on St. Kitts also have a speed and height advantage over the Nevis population, so the bottleneck effect is more likely to have wiped out their population since they have more favorable traits than their counterpart. If the island underwent a catastrophe, it is likely that the rodents were separated physically.

5. Conduct research on one mammal that lives on the tundra and prepare a short essay on your mammal.

Humans have caused another extinction, one that could possibly take us down in the process, species are exponentially going extinct because of habitat loss, species exportation, and invasive species bullying native species. On the other hand, scientists are trying to safe guard native species, keep animals in captivity whether it be for the animals well-being or for research, and widespread invasion. In this essay I will be comparing and contrasting “What Everglades Pythons and Other Invasive Species are Trying to Tell Us,” by Julia Whitty and “The Sixth Extinction,” by Jeff Corwin.

Most scientists estimate that the native moose to the area has been living there since the early 1900’s. Isle Royale in Lake Superior, Michigan offers unique opportunity to study the interspecies relationships found in a single ecosystem. This ecosystem is special and particularly useful in study because its primary inhabitants include a producer (the balsam fir tree), a consumer (the herbivorous moose), and a predator (the grey wolf). The predator wolf has been there since1945. The Grey Wolf was able to move to the island once the waters froze over. The moose population at the time was significantly

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.

The white phased black bear was said to have traversed barriers of the sea during the last ice age when glaciers covered most of northwest British Columbia. When temperatures started to rise, and glaciers started to retreat it is believed that the white bear was then isolated on the islands off the coast of BC. The white coats would suggest an adaptation to the white snow for hunting, however if that was the case, the evolutionary trail should have left the recessive gene behind when it was no longer useful to them in the temperate forests. Most research that is done on the Spirit bear is to try and understand the polymorphism of this species and how it has come to last among a low frequency in a minute area. Evidence now suggest that the reason for the white fur is actually a very important adaptation for the bear and is still very useful even in the array of

The salt marsh harvest mouse is listed as an endangered species in 1970s. Its phylogeny is of the Kingdom Animalia, the Phylum Chordata, the Class Mammalia, the Order Rodentia, the Family Cricetidae, the Genus Reithrodontomys, and the Species raviventris. The closest living relative of the salt marsh harvest mouse, according to genetic mapping, is the plains harvest mouse, R. montanus, a western interior species that are found in Mexico and central US.

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

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,

The Melomys rubicola, more commonly known as the Bramble Cay Melomys, is a breed of rodent that inhabits the Torres Straight Islands of Northern Queensland. It is ranked as critically endangered and is one of Australia’s most isolated mammals. With an estimated population of approximately 93, it is imperative that action is taken as soon as possible to conserve this species so that its numbers do not plummet further.

The California pocket mouse belongs to the genus chaetodipus and is a native species in California, thus it is known as the chaetodipus californicus. The chaetodipus californicus is a populous rodent whose habitat spans from that of Northern California, from the San Francisco Bay, deep into South California towards the border of Mexico. According to the ADW at the University of Michigan, the, “C. californicus occupies a wide variety of habitats year-round within its range in the Upper Sonoran and Transition life zones. These include montane hardwood, valley foothill hardwood-conifer, valley foothill hardwood, annual grassland, sagebrush, chamise-redshank and montane chaparral, and coastal scrub. C. californicus occurs in greatest abundance in habitats where grassland and chaparral are in close proximity. In central California, this species is found at low to moderate elevations, whereas in southern California it is found primarily at moderate elevations.” (Johnson). The habitat regions are generally temperate and terrestrial, most of which are chaparral or forest biomes.

In Canada, the pygmy shrew is nationally ranked by NatureServe as N5 or secure with the country. Provinces are listed with the following rankings: Prince Edward Island (S2/S3), Ontario (S4), British Columbia (S5), Manitoba (S5), New Brunswick (S5), Nova Scotia (S5),, Quebec (S5), Yukon Territories (S5), Saskatchewan (S5), North West Territories (SNR) and Nunavut (SNR). Prince Edward Island is listed as S2/S3 for the province. This classified the species as rare or uncommon, imperial and very vulnerable to

Animal extinction is big a threat to some animal species. According to the text “ The Impact of Animal Protection”, many nature parks have supervised breeding programs that allow numbers to increase. Many people think that animals should be able to repopulate by themselves. Keeping animals protected has proven to be beneficial and increase the populations of endangered animals. According to the text “The Impact of Animal Protection” these programs have helped bring several animals - black footed

Overall, this short movie provides a good point of view on the situation, however, I believe that there is not a strong enough emphasis on the other threats possible like global warming, hunting or any other possible conservation issues. It is mainly focused on the wood trade and the danger concerning lemurs in this place, but usually species are not endangered just because of one cause. Global warming is a growing concern all around the world and Madagascar, being an island, could be touched even more by the sea level

The Alaskan Malamute is a medium-large to large dog that weighs between 70-95 pounds and measures up to 25". They are best known as sled dogs and are used to hard work. They ideal for cold climates or homes that will keep them cool and hydrated in hot summers. The Alaskan Malamute has a thick, coarse outer coat and wooly, dense undercoat. They are dressed for cold weather. If you own an Alaskan Malamute and live in a warmer climate, you need to make sure that they have a place to get out of the sun and plenty of water.