Describe how each of the limiting factors in the simulation affected population growth and carrying capacity(migration, predation, food, disease, and pollution).
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- Population size increases whena. the sum of birth rate and death rate exceeds the sum ofimmigration and emigration.b. the sum of birth rate and immigration exceeds the sum of deathrate and emigration.Figure 37.20 Opportunistic and Equilibrium Species:A Summary.• High reproduction rate• Many ospring• Each ospring receives littleparental care• Low survival rate for juveniles• Early reproductive maturity• Type III survivorship curve:Opportunistic life history Equilibrium life history• Low reproduction rate• Few ospring• Each ospring receivesextensive parental care• High survival rate for juveniles• Late reproductive maturity• Type I survivorship curve:AgeSurvivorsAgeSurvivors764 UNIT SEVEN The Ecology of Lifehoe2420X_ch37_748-765.indd 764 12/15/16 11:45 PMc. the sum of birth rate and emigration exceeds the sum of death rateand immigration.d. the sum of death rate and immigration exceeds the sum of birthrate and emigration.Deer Population on an Island 120 100 96 80 78 60 6아 40 36 20 TO 1 2 3 4 5 6 7 8 9 10 11 12 Number of Months Dear population 1-During which months was the growth of the deer population exponential? | 2-Give one possible reason why the population decreased after 5 months 3-What is the approximate carrying capacity of the island? 4-Explain "carrying capacity" 5-What type of density independent factors may cause the population to decrease (name 2)? 6-What type of density dependent factors may cause the population to decrease (name 2)? 7-Overall, do deer populations seem to exhibit exponential or logistic growth? Explain why Number of DeerPredator Prey on Isle Royale 3000 60 2500 50 2000 40 Number of 1500 30 Moose - Number of Wolves 1000 20 500 10 0+ 1950 1960 1970 1980 1990 2000 2010 Years 1. What is the greatest moose population? What year did that occur? What was the wolf population when the moose population the greatest? 2. What would happen to the wolf population if the moose population decreases? 3. What would happen to the moose population if the wolves were removed from Isle Royale? 4. Describe the pattern between the wolf (predator) population in relation to the moose (prey) population. 5. Identify a factor, other than moose population, that has influenced the wolf population in Isle Royale. 6. Identify two factors, other than the wolf population, that may influence the moose population. Moose Wolves
- 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. DRAW IT Each female of a particular fish species produces millions of eggs per year. Draw and label the mostlikely survivorship curve for this species, and explainyour choice.ity of 5000 trout. However, va 0 6. It has been estimated that for the Antarctic fin whale, r = 0.08, M = 400,000, and P = 70,000 in 1976. Model this population. Then, revise the model to consider harvesting the whales as a percentage of rM. Give various values for this percentage that lead to extinction and other values that lead to in- creases in the population. Estimate the maximum sustainable yield, or the percentage of rM that gives a constant population in the long term (Zill 2013). roto of 1500 m²/day clearing the
- Assuming that a population is not near the carrying capacity of its environment, what is likely to occur if the number of pre-reproductive and reproductive members of a population is greater than the number of postreproductive members? Othe population density will increase the population growth rate will decrease Cthe population will remain at the same densityA 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?Direction: Analyze the situation and tell what limiting factor is being described. Choose in the box below the type of limiting factors. Mortality Natality Emigration Immigration Situation Limiting Factor 1. Every year, there's an increase in the population of migratory birds in Candava. Pampanga. 2. The increase of the population of frogs during rainy days. 3. Russian population decline due to Covid-19 effect. 4. Decrease in the population of birds when they move to another place due to unfavorable weather conditions. 5. The population in the Philippines increases due to teenage pregnancy.
- ESTIMATING POPULATION SIZE USING THE LINCOLN INDEX 1. A biologist wants to estimate the size of a population of turtles on an island. He captures 20 turtles on his first visit, and marks their backs with red paint. Two weeks later he returns to the island and captures 25 turtles. Five of these 25 turtles have red paint on their backs. Using the Lincoln index equation, calculate the estimated population 2. Overfishing in Antarctica has resulted in a steep decline in Patagonian toothfish. Fishery scientists are monitoring the population size to see if it is recovering by using the mark-release-recapture method and the Lincoln index equation. On their initial visit, the scientists caught and marked 100 specimens. When they returned on a second visit, they captured a total of 70 Patagonian toothfish. If the scientists estimated the population size was 700, how many of the recaptured toothfish were marked? Show all working.Use the following information to answer the next question. Predator-prey population cycles prey predator Time Сорy Look Up Share... In the above graph, the points A, B, C, and D represent the following events, in random oraer. 1. Reduction in predator population 2. Reduction in prey population 3. Increase in predator population 4. Increase in prey population The correct order for listing the events represented by A, B, C, and D is » and NumberWhich statments are correct? Question 25 options: Species diversity tends to increase with evapostranspiration Species diversity tends to increase with when parasitism is low Species diversity tends to increase with island area Species diversity tends to be higher when disturbance frequency is low Species diversity tends to increase with decreasing latitude