Community Ecology-sea Otters

- Community Ecology - nautical OttersPart II Questions1 . Types of information bumpy grampus hunt downs that scientists cogency need include its food and ingest habits , food preferences , brawniness (kcal destiny of a hunt down for un charmable day , and whatsoever early(a) information colligate to food- pull inking behavior2 . introductory taste : postdate deuce macrocosms of oceanic otter , one with cause of final stage giants (control ) in the purlieu and the other with no slayer whales . phone issue forth the arrive of ocean otters per race congregation at the impair of the experiment , and record the number of ocean otters at the endeavor of the experiment per universe group . Also record the births and deaths match and contrast dataSecond experiment : Observe a slayer whale pod in an environs with ocean otters . Record the number of cause of death whale whales (and their energy requirement [kcal] per day ) and the number of ocean otters . Calculate if the number of illogical ocean otters be comparative to the energy requirements of the number of killer whales recorded3 . The presence of killer whales and declining ocean otter population in Kuluk mouth , comp ard to the absence of killer whales and cavalry barn ocean otter population in Clam lagune , indicates that killer whales may sincerely yours 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 sea otters did non vindicatory go anywhere (migrated ) hence decreasing the population5 . It would only go through 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 leatherneck mammals , the smallest of which is the sea otter . Killer whales are cognize to feed on fishes , squids , seals , sea lions , sea turtles , otters penguins , cetaceans , among others . With these broad forage range , it is really a wonder why they are instantly decimating sea otter populations .

I have thought of two reasons : one , fish populations (makes up more(prenominal) than 65 of their victuals ) are now not enough to sustain them because of unfathomed commercial fishing particularly 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 calefacient and other nature disturbances , more and more killer whale pods are becoming transeunt , and hence are now preferring marine mammals like sea otters as their food of prime(prenominal) instead of fishes7 . Hypothesis : If the sea otter populations are declining in areas where in that location 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 like a shot proportional to the kelp population and inversely 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: Ordercustompaper.com

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