Community Ecology-sea Otters

- Community Ecology - ocean OttersPart II Questions1 . Types of information pettish grampus hunt downs that scientists force need include its nutriment and ingest habits , food preferences , life force (kcal demand of a hunt down for un advertable day , and whatsoever some other information relate to food- pull inking behavior2 . introductory look into : discover twain macrocosms of naval otter , one with cause of devastation hulks (control ) in the contact and the other with no slayer hunts . numerate the arrive of nautical otters per community radical at the debase of the experiment , and record the sum of ocean otters at the endeavor of the experiment per state group . Also record the births and deaths match and contrast entropySecond experiment : Observe a grampus whale whale whale pod in an environs with ocean otters . Record the telephone number of slayer whales (and their energy requirement [kcal] per day ) and the number of ocean otters . Calculate if the number of preoccupied ocean otters ar proportionate to the energy requirements of the number of killer whales recorded3 . The presence of killer whales and declining ocean otter population in Kuluk utter , comp bed to the absence of killer whales and horse cavalry barn ocean otter population in Clam lagoon , indicates that killer whales may rattling be the cause of the ocean otter population decline4 . Scientists counted all the ocean otters and did radio tracking and tagging to conciliate veritable that the ocean otters did non exactly go anywhere (migrated ) thusly decreasing the population5 . It would only bind about 8 (male ) killer whales feeding exclusively on (male ) ocean otters to consume 40 ,000 of themPart III Questions6 . Killer whales be the largest predators of warm-blooded marine mammals , the smallest of which is the ocean otter . Killer whales are k presently to feed on fishes , squids , seals , sea lions , sea turtles , otters penguins , cetaceans , among others . With these broad fodder range , it is really a wonder why they are now decimating sea otter populations .

I have thought of two reasons : one , fish populations (makes up more(prenominal) than 65 of their regimen ) are now non enough to sustain them because of saturnine commercial fishing especially in Alaska . Thus , they are now turning to sea otters . Two , it is a cognize fact that ephemeral killer whales primarily eat marine mammals and occasionally eat fishes . I think that with global heating plant and other nature disturbances , more and more killer whale pods are becoming short , and hence are now preferring marine mammals like sea otters as their food of extract instead of fishes7 . Hypothesis : If the sea otter populations are declining in areas where in that respect are killer whales compared to areas with no killer whales , then the killer whales are the cause of the sea otter population declinePart IV QuestionsFrom the data , I can assemble that the presence of sea otters is outright proportional to the kelp population and in return proportional to the population of sea urchins (sea otters food of choice . sea otters are an important species in their community in the sea . In fact , they are known...If you want to get a full essay, order it on our website: Orderessay

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