Community Ecology-sea Otters

- Community Ecology - ocean OttersPart II Questions1 . Types of information clumsy grampus hunt downs that scientists might need include its nutriment and ingest habits , food preferences , energy (kcal prerequisite of a giant for unmatchable day , and any new(prenominal) information link up to food- pull inking behavior2 . introductory experiment : come across devil macrocosms of ocean otter , one with cause of death colossuss (control ) in the contact and the other with no slayer whales . counting the arrive of ocean otters per tribe concourse at the demoralise of the experiment , and record the bite of ocean otters at the determination of the experiment per macrocosm group . Also record the births and deaths match and contrast selective informationSecond experiment : Observe a ocean wolf whale pod i n an environs with ocean otters . Record the number of grampus whales (and their energy requirement [kcal] per day ) and the number of ocean otters . Calculate if the number of muddled sea otters ar proportional to the energy requirements of the number of killer whales recorded3 . The presence of killer whales and declining sea otter population in Kuluk bay laurel , comp atomic number 18d to the absence of killer whales and horse barn sea otter population in Clam Lagoon , indicates that killer whales may unfeignedly be the cause of the sea otter population decline4 . Scientists counted all the sea otters and did radio tracking and tagging to make veritable that the sea otters did non precisely go anywhere (migrated ) on that pointfore decreasing the population5 . It would only engineer about 8 (male ) killer whales feeding exclusively on (male ) sea otters to consume 40 ,000 of themPart III Questions6 . Killer whales ar the largest predators of warm-blooded devil do g mammals , the smallest of which is the sea! otter . Killer whales atomic number 18 k flat to feed on fishes , squids , seals , sea lions , sea turtles , otters penguins , cetaceans , among others . With these broad aliment 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 than 65 of their provender ) are now not enough to sustain them because of surd commercial fishing specially in Alaska . Thus , they are now turning to sea otters . Two , it is a know fact that ephemeral killer whales primarily eat marine mammals and occasionally eat fishes . I think that with global melt and other nature disturbances , more and more killer whale pods are becoming transient , and hence are now preferring marine mammals like sea otters as their food of cream instead of fishes7 . Hypothesis : If the sea otter populations are declining in areas where there 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 see that the presence of sea otters is instantly proportional to the kelp population and mutually 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.net

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