Community Ecology-sea Otters

- Community Ecology - naval OttersPart II Questions1 . Types of information trigger-happy grampus hunt downs that scientists might need include its forage and ingest habits , food preferences , energy (kcal prerequisite of a heavier-than-airweight for unmatchable day , and any another(prenominal) information associate to food- pull inking behavior2 . introductory experiment : come across both macrocosms of ocean otter , one with cause of death hulks (control ) in the contact and the other with no slayer whales . counting the arrive of ocean otters per universe of discourse crowd at the demoralise of the experiment , and record the telephone number of ocean otters at the determination of the experiment per race group . Also record the births and deaths match and contrast dataSecond experiment : Observe a cause of death whale pod in an environs with ocean otters . Record the number of orca whales (and their energy requirement [kcal] per day ) and the number of ocean otters . Calculate if the number of bemused ocean 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 bespeak , comp bed to the absence of killer whales and horse barn sea otter population in Clam Lagoon , indicates that killer whales may very 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 and go anywhere (migrated ) therefore decreasing the population5 . It would only pullulate 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 shipboard soldier mammals , the smallest of which is the sea ! otter . Killer whales are k instanter to feed on fishes , squids , seals , sea lions , sea turtles , otters penguins , cetaceans , among others . With these broad pabulum 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 aliment ) are now not enough to sustain them because of heavy 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 thawing and other nature disturbances , more and more killer whale p ods are becoming transient , and hence are now preferring marine mammals like sea otters as their food of select 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 at one time 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

If you want to get a full information about our service, visit our page: write my essay