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- Great white sharks prefer marine mammals like seals but can eat a number of other prey items, including birds and fish. According to the table below, what is the critical search time for seals, above which great white sharks should choose to eat an albatross if they encounter one? Prey item: seal (energy = 60 Mcals, handling time = 5 minutes) Prey item: albatross (energy = 10 Mcals, handling time = 2 minutes)Discuss the pros and cons,in energetic terms,of (i) being a generalist as opposed to a specialist predator, and (ii) being a sit–and –wait predator as opposed to an active forager?According to optimal foraging theory a. individuals minimize energy intake per unit of time. b. energy content of a food item is the only determinant of a forager’s food choice. c. time taken to capture a food item is the only determinant of a forager’s food choice. d. a higher energy item might be less valuable than a lower energy item if it takes too much time to capture the larger item.
- Briefly interpret the graphs about Comparisons of prey toxicity and predator resistance from two localities?If the rate of some process is governed by the abundance of prey individuals, we say that it is prey-dependent. Give some examples of prey-dependent processes.Using the lynx–hare interaction, explain in words the equations of the Lotka–Volterra model for the change in the population sizes of prey and predators.
- What should decision makers at Camp Bow Wow to gain a competitive advantage over other area day camp/B&B for dogs? Provide an example.7.Optimal foraging theory suggests that ____________. A) when handling time is long relative to search time, predators should be generalists. B) specialized diets are rare in nature. C) new items are added to the diet only if their handling time is larger than average. D) when search time is long relative to handling time, predators should be generalists.Get SNR-dependent graphs of BER and interruption probabilities for each state by doing receiver diversity. Take the number of receivers as M= 1, 2 and 4. Take the SNR range from 0 dB to 30 dB.a-MRCb-EGCc-SCHint: Take 10 log_10〖(γ/γ_0)〗 as the SNR value for the interruption probability.
- Question 7 Optimal foraging theory suggests that ____________. Question 7 options: A) when handling time is long relative to search time, predators should be generalists. B) specialized diets are rare in nature. C) new items are added to the diet only if their handling time is larger than average. D) when search time is long relative to handling time, predators should be generalists.Which of the following is a cost of living in groups? a. Increased risk of disease transmission b. Reduced competition c. Decreased ability to detect predators d. Decreased visibility to predatorsWhat is the best explanation for a decrease in a population of wolves in an area? A. The amount of food decreases. B. The amount of space increases. C. The amount of food increases. D. The amount of competition decreases.