Determine the population growth rates based on a population size of 50, 100, 200, 350, 480, 500, 525, and 600 bats. Include up to three decimal places in your answers.
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Population Growth
R and K Selection
R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.
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- A population of bats exhibits logistic growth. The carrying capacity is 600 bats and the maximum per capita Growth rate (rmax) is 0.20. The population size was determined periodically. Determine the population growth rates based on a population size of 50, 100, 200, 350, 480, 500, 525, and 600 bats. Include up to three decimal places in your answers. Show all work! üüüüüüüü rmax N (K-N)/K Population growth rate a. 0.20 b. 0.20 c. 0.20 d. 0.20 e. 0.20 f. 0.20 g. 0.20 h. 0.20 b. Describe the relationship between population size and growth rate. üüIt is estimated that approximately 20,000 grizzly bears live in Western Canada, Yukon, and Northwest Territories. Currently, there are 146 grizzly bears remaining in Jasper National Park in an area of 7500 km2. Calculate the density of the grizzly bear population in Jasper Park. Express your answer as a value rounded to two decimal places. Units = grizzly bears/km2Analyze the graphs below. Which growth model (exponential or logis- tic) would apply to a population of squirrels arriving on a new island? Assume the squirrels have no way to leave. Answer the following questions: 1. Which growth model (exponential or logistic) fits the squirrel scenario? 2. Why did you choose this growth model? (think about the difference between the 2 types) Exponential Growth Logistic Growth Carrying capacity Time Time
- Write a generalized model for exponential population growth. Define your terms. Then, draw a plot showing an example, being sure to label your axes. Write a formula that extends the preceding model to incorporate carrying capacity, producing sigmoidal population growth. Define your terms. Then, draw a plot showing an example, being sure to label your axes.Draw a graph with a growth curve for a population that starts at 10 individuals and experiences exponential growth. Draw a second graph with a growth curve for a population that starts with 10 individuals and undergoes logistic growth. The second graph should have a carrying capacity of 100 individuals. Please give a proper written explanation for the graphs.A few plant-eating salamanders manage to float on a log to a large island in the Pacific that did not have any other salamander species previously. The salamanders find the island has abundant plants for food and no predators. On average, a salamander has four offspring per year and lives for one year. Refer to the equation for the logistic growth model if you were modeling salamnder population growth with this logistic growth equation, during the first few years, a) N<K b) N=K c) N>K d) there is no relationship between N and K
- It is estimated that approximately 20,000 grizzly bears live in Western Canada, Yukon, and Northwest Territories. Currently, there are 198 grizzly bears remaining in Jasper National Park in an area of 9500 km2. Calculate the density of the grizzly bear population in Jasper Park. Express your answer as a value rounded to two decimal places. Answer grizzly bears/km2The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the intrinsic rate of increase of this population? nx bx 678 1 102 31 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 1.89 0.053 O 1.32 0.51Year (Y) Population Size (N) 1910 30 1920 125 1930 350 1940 1200 1950 Graph the data from the table above into the answer box. Use the information from the graph to complete the following questions. Answer: 1. Considering ONLY the information you were given in the introductory paragraph regarding reindeer reproductive habits and predation, would you predict that the population growth curve would be logistic or exponential? Support your answer. Answer: 2. Describe the growth pattern that existed from 1910 to 1950. Si ɔport y ur answer. Answer: 3. Provide a possible hypothesis explaining the changes in ɔopuli ion be ween 1940 and 1950. Answer: 4. Using the information you have been given about caribou populations, state two factors that have limited the size of the caribou population. For each, indicate vhether it is a density-dependent or density-independent factor. Answer:
- A population of 30 endangered palm frogs has been introduced into a new region, that has unlimited resources. These frogs breed continuously. You have been asked to calculate what the population size is likely to be in 20 years time, assuming an intrinsic rate of increase of 0.041. Report your result as an integerA population of grey squirrels started with one pair and grows logistically with annual r = 1 and K = 42. Use the logistic growth equation to predict the population size 14 years after the first pair arrived.The moose population in Northern Alberta is estimated to be around 11, 800. During the year, there were 5054 births, 4567 deaths, 25 immigrations and 52 emigrations. Calculate the per capita growth rate. Express your answer as a value between 0 and 1 rounded to two decimal places. If the population is decreasing indicate this with a negative sign.