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- Meta population models focus on the BIDE (birth, immigration, death, emigration) dynamics, colonization and extirpation. A) Explain how these relate to genetic bottlenecks and explain why meta population models have a hard time predicting such events? B) Why is the island biogeography model a strong example of meta population dynamics?In a survey conducted at the beginning of 2010, a hypothetical country with a total land area of 300,000 square kilometers had a population density of 362.6 per square kilometer. 1. What was the total population during the time of the survey? A. 827,578 B. 12,086,700 C. 108,780,000 D. 150,870,400 2. If the birth rate was 1.5%. how many individuals were born that year? A. 12,413,670 B. 1,631,700 C. 2,263,050 D. 18,300,500 3. If 545,000 individuals died on the same year, what was the death rate? A. 0.5% B. 3.6% C. 4.5% D. 6.58%Let us say that gene flow among the islands is uniform over the interval of study but varies across islands. Also, the islands have effective population sizes as indicated in the table, except you must enter your estimate for Ne for island A from problem 8. Ne m Island A ________ 0.59 Island B 112.6 0.46 Island C 517.9 0.02 9) Which island, based strictly on Ne, is most likely to experience fluctuations in allele frequencies due to random genetic drift? (A) island A (B) island B (C) island C 10) Which island, based on the combined evidence of Ne and m, is most likely to drift away from the allele frequencies of the other islands? (A) island A (B) island B (C) island C
- In a survey conducted at the beginning of 2018, a hypothetical country with a total land area of 500,500 square kilometers had a population density of 483.3 per square kilometer. 1. What was the total population during the survey? a. 96, 563,436 b. 182,086,700 c. 241,891,650 d. 350, 830,401 2. If the birth rate was 1.3%, how many individuals were born that year?* a. 2,683,450 b. 3,144,591 c. 11,320,505 d. 22,463,682 3. If 612,300 individuals died on the same year, what was the death rate?* a. 0.25% b. 0.5% c. 1.5% d. 2%Japan currently exhibits which of the following age-structures (population profiles)? A. the column population profile B. the inverted pyramid population profile C. the bulge population profile D. the pyramid population profile E. all of the aboveNatality, mortality, immigration, and emigration are all terms related to any population. a) Describe briefly what each term means. b) Explain briefly how each process effects a population. c) Which of the terms do not relate to a closed population? Explain why not. d) Brainstorm several examples of closed populations that occur naturally. Contrast these with examples of closed populations produced by human intervention or other activities.
- The distribution of a herd of deer is shown in Fig. 4.17. Using the values below for the dimensions shown in the figure, estimate the population size of the deer using the number of animals per transect calculated from: the count from transect A only; the mean count from transects A and B; the mean count from all three transects A, B and C. Total Area (A) = 1,600,000 m2 (160 ha). w = 75 m L = 700 m Area of transect = 2wLThere are two isolated populations (A and B) of an endangered plant species. Population A has had a constant size of 2,000 plants, and population B has had a constant size of 250 plants. We most expect to see more changes in the frequency of neutral alleles in population _______ due to _______.In a certain population of rabbits, 25 new rabbits are born and five move into the population from surrounding areas during a single year. However, 10 rabbits die, and five leave the population during the same time frame. What is the population change for that year? a. 30 b. No change c. 15 d. 25 e. 10
- A founder population of interesting creatures is established, and the average probability of identity by descent is calculated for each subsequent generation as follows: Generation F 1 0.05 2 0.0975 3 0.142625 4 0.2283625 a) What are the effective population sizes Ne for each Generation 1 through 4, relative to Generation 0 (the founder population)? b) What is the effective population size of Generation 4 relative to Generation 3? c) Is there any evidence for changes in population size after the founder event, and if so, at which generation did the size change in the number of breeding individuals occur?A population has 1000 juvenile individuals, 100 young adult individuals, and 10 older adult individuals. This population is likely…? Group of answer choices a, increasing b. decreasing c. stable d. no way to tellIf predicted genotypic frequencies do not match actual genotypic frequencies, what is true of the population? a It is changing. b It is in equilibrium. c The frequencies are unpredictable. d The sample population was too large.
