Sea otter

passage and lecture are about reasons that made the sea otter to be declined. According to the reading passage, the author claims that environmental pollution and predation are the reasons of this declining. However, the professor doubts that by stating that the reason is the predation only. First, the passage states that according to the pollution sources that found along the Alaskan coast and the level of chemicals that increased, the sea otter population has declined. In contrast, the…

could occur if sea otters disappeared in the ecosystems where they currently exist. Sea otters are considered a keystone species in these ecosystems, so the entire eco-system could be altered drastically and one can expect multiple species to be negatively affected which may diminish diversity. To start with, the most likely immediate effect would be the top down impact discussed above. Free from predators, the sea urchin population would explode (assuming that a new predator of sea urchins…

for sea otter decline and provides three reasons of support. However, the professor states that predation hypothesis is the most likely cause of the sea otter decline and refutes each of the authors' reasons. First, the reading states that increasing in levels of chemicals could decrease the otters' resistance cause infections to life-threatening infections and death to sea otters. The professor opposes this point by saying that this point is weakened because people could not find dead sea…

Missing Sea Otters: An Ecological Detective Story” by Mary E. Allen and Mark L. Kuhlmann, the sea otter population has been decreasing at a rapid pace since the 1990’s in Aleutian, Alaska. This is demonstrated by article “What Could be the Cause of Decreasing Otter Numbers” which states that in 1997, the decline of the sea otter population had increased to about 90%. They hypothesize that the decrease in the sea otter population has been caused by their predator, the killer whale because the…

different providers. Some of these species are even ecosystem engineers that create or maintain habitats for other species. Two of the most amazing keystone species are the sea otter and the American alligator. Sea otters are a keystone species in the Pacific Northwest and the marine ecosystems found along California’s shoreline. Sea otters are a very…

population of sea otters once numbered between several hundred thousand to over one million before being nearly hunted to extinction by fur traders in the 1700s and 1800s” (Defenders of Wildlife). There are only approximately 106,000 sea otters left. Due to fur trade in the early 1900s, there was once under 2,000 sea otters worldwide. Sea otters can possibly be represented as a poster child for reintroduction yet they still remain on the endangered list. There are many reasons why sea otters are…

explore further is the sea otters and the manatees, both amazing marine mammals. Both animals are now considered endangered and many have taken acts towards conservation for them to perhaps strive once again in the future. But, before these acts are taken, you have to know what makes these mammals so special and what they contribute to our society. Firstly, Sea otters come from the Mustelidae (weasel) family, which includes the three subspecies, such as the Northern sea otter. They are the…

explains that a sea otter population in Alaska started to decline rapidly because of pollution and attack from the predators and provides three reason of support. On the other hand, the professor states that predation is the most likely cause of the sea otters to decline and refutes each of the authors reason. First, The reading states that, the infections from pollution cause the sea otters to decline in Alaska oceans. However, The professors states that, sea otters are not decline…

Finial, a gilt bronze ornament created in the 18th century and currently displayed in the Arts of Asia department, has a two visual elements, shape and space. This art piece has organic shape where there is the wavy form of water and bodies of two fish. These two organic shapes contribute to the piece as they exist in the same environment. In Buddhism art, fish in water represent happiness because they are free to swim in the water. This 3D piece has a geometric circle shape that connects every…

lutris nereis, commonly known as a southern sea otter, has been a threatened species since 1977 under the Endangered Species Act (ESA). The southern sea otters live in waters along the California coastline. Their geographic range begins in San Mateo County in northern California and extends down to Santa Barbara County in southern California. The diet of these generalist sea otters consists mainly of sluggish fishes and marine invertebrate such as sea urchins, clams, mussels, and snails, and…