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- Part A: A population of 100 Asian elephants exhibits logistic growth. If the carrying capacity is 500 elephants and theper capita growth rate is 0.1 individuals/(individuals × year), what is the maximum population growth rate forthe population? part b: Based on the above question, what is the maximum population growth rate for the population if we assumedthe elephants were undergoing exponential growth?The table below shows the size of species A and B populations that live on a small island near Philippine.a) State how the information in the table can be used to determine thatthe species B is the predator.b) Briefly explain TWO (2) possible ecological reasons, other than humanactivity, for the change in species A population between 1985 and 1990.c) Name TWO (2)limiting factors that keep the species B population sizefrom growing any larger.4. Looking at Figure 2.2, what type of age structure is observed during the month of December? What does this imply? 5. Considering Figure 2.2, in which month is the population rapidly increasing? rapidly decreasing? Discuss the environmental factors (i.e. availability of resources and conditions) that affected the population growth of the bee colony. 6. Based on the line graph in Figure 2.2, was carrying capacity reached? Support your answer.
- 7) The following data has been obtained from the coastal haddock (Melanogrammus aeglefinus) fishery of Maine. The fishing season was divided into 10 periods. Period Catch per Period 1 208 2 195 3 168 4 132 5 91 6 80 7 63 8 56 9 48 10 33 It was also recorded that five fishing trawlers were in operation during each period of the fishing season. Question: What was the size of the haddock population originally available to the fishery?1. The northern hairy-nosed wombat has experienced historical population declines, though population have stabilized recently due to conservation efforts. While studying them researchers noticed the following fluctuations in (effective) population size: Year 1: 100 individuals Year 2: 90 individuals Year 3: 50 individuals Year 4: 75 individuals Year 5: 90 individuals Year 6: 95 individuals A. Given this information what is the long-term effective population size of this particular population over the six years?1) How did the removal of sea otters affect the population of two other organisms? Please explain. (grey means they are no longer available in that ecosystem).
- b) Figure 7 shows population growth of Proboscis monkeys over time. 2.0E carrying capacity V 1.5- Monkey populations 1.아- 0.5- Time Figure 7 i) State the type of population growth. ii) Proboscis monkeys nomally live in groups in their natural habitat. What is the dispersion pattern for this monkey population? iii) Describe what happens to Proboscis monkey population at V. 12 iv) Give one (1) possible example of density-dependent factor that affects the Proboscis monkey population.1. Answer the following questionsa)How long will it take for a dolphin population to be reduced by 50% if the intrinsic rate of increase is -.04?b)In the last 70 years the blue whale population decreased from 340,280 to 4,727. What is the intrinsic rate of decrease (r)? c)If the current intrinsic rate of increase for blue whales is .1, how long will it take the current population of 4,727 to climb back to 340,280?One concept of conservation biology is known as minimum viablepopulation. Some species’ populations are so fragmented andsmall that they may have very little genetic variability left. Withminimal genetic variation in the population, there is little likelihoodthat a population can adapt to an environmental threat, such as anew disease. Florida panthers are at or below the minimum viablepopulation level (estimated population less than 80). 1)Do you think that it is practical to use limited resources toconserve a population like the Florida panther? 2)Why?
- Below is a table that shows the changes in a population of domesticated rabbits. What is the most likely explanation for why size of the rabbit population remained relatively constant from 1990-1992? Year 1986 1987 1988 1989 1990 1991 1992 Population 601 732 769 800 816 815 816 O a. The population suffered from a new disease O b. A new predator was introduced c. The rabbit's prey source was killed off due to hunting o d. The population reached its carrying capacity9. Which of the following increases the population of certain species? * immigration emigration water availability predation 10. In a population of 1145 rabbits, how many years would it take to double their size given that their growth rate is 13.8% annually? * 158 years 50 years 5 years O half year 11. Which of the following is TRUE about the growth rate of a population? * Growth rate is negative if natality exceeds mortality. Growth rate is positive if mortality exceeds natality. There is an increase in the growth rate if emigration occurs. O The higher the female population, the higher the growth rate.Organismsthat produce many offspring would best be characterized by which of thefollowing?a.A convex survivorship curveb.A concave survivorship curvec.A linear survivorship curved.A sigmoidal survivorship curvee.None of the choices apply