ESTIMATING POPULATION SIZE USING THE LINCOLN INDEX1. 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 population2. 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. MATHS SKILLS 4.1ESTIMATING POPULATION SIZE USING THE LINCOLN INDEXThe Lincoln index is one of a number of mathematicalequations that can use the mark-release-recapture datato estimate the population size.The Lincoln index uses the following formula andsymbols:N=xn₁ X n₂m₂whereN = estimate of population sizen₁ = number of individuals captured in first samplen₂ = number of individuals (both marked andunmarked) captured in second samplem₂ = number of marked individuals recaptured insecond sample CONTINUEDWorked exampleThe mark-release-recapture method was performed ondog whelks found a rocky shore.The results were:n₁ = number of dog whelks captured and marked on thefirst visit: 120n₂ = number of dog whelks (both marked and unmarked)captured on the second visit: 200m₂ = number of recaptured dog whelks that weremarked: 40Use the Lincoln index equation to estimate the totalpopulation size of dog whelks, N.N =n₁ x n₂m₂200 × 12040= 600Questions1A biologist wants to estimate the size of apopulation of turtles on an island. He captures20 turtles on his first visit, and marks their backswith red paint. Two weeks later he returns to theisland and captures 25 turtles. Five of these 25turtles have red paint on their backs. Using theLincoln index equation, calculate the estimatedpopulation size.2Overfishing in Antarctica has resulted in asteep decline in Patagonian toothfish. Fisheryscientists are monitoring the population sizeto see if it is recovering by using the mark-release-recapture method and the Lincoln indexequation.On their initial visit, the scientists caught andmarked 100 specimens. When they returnedon a second visit, they captured a total of 70Patagonian toothfish. If the scientists estimatedthe population size was 700, how many of therecaptured toothfish were marked?

Lincoln index It refers to an equation that is used to estimate the population size through the…

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?

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?

Case Studies In Health Information Management

3rd Edition

ISBN:9781337676908

Author:SCHNERING

Publisher:SCHNERING

Chapter7: Healthcare Statistics And Research Methods

Section: Chapter Questions

Problem 7.3.5C

See similar textbooks

Similar questions

Hardy Weinburg Equilibrium Practice Problems Equilibrium Worksheet PROBLEM #1. Equilibrium Questions Static Equilibrium Problems Equilibrium Chemistry Chemical Questions rdy Weinberg Equilibrium Practice Problem You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Using that 36%, calculate the following: a) The frequency of the "aa" genotype. b) The frequency of the "a" allele. c) The frequency of the "A" allele. d) The frequencies of the genotypes "AA" and "Aa." e) The frequencies of the two possible phenotypes if "A" is completely dominant over "a."
Exercise 4: Population Genetics 1. How do the genotype frequencies (or number of kittens) among the parents compare to with those of their kittens (2nd generation)? 2. Compare your results to those of another lab group and explain what you see here. Why do you think this is the case? Exer How the l pres A re ac N th 20 3. Is this population in Hardy-Weinberg Equilibrium? What does that tell you about this population in relation to the 4 conditions needed for equilibrium? Exercise 4.2 Evolving Populations In this part of the exercise, we will use the toothpicks to illustrate the effects of natural selection in our population of cats. In our small town, people don't usually set out food for the cats who live there, because they are fairly unobservant and didn't notice all those solid black cats hiding in the shadows. But now, with the mutation creating white spots on some of the cats, people are noticing these cats and leaving food out. Let's assume that only the cat who's seen actually…
I need help understanding how to calculate using the Hardy Weinberg Equilibrium. Please see the attached. Thank you!
Please help me with these ungraded practice problems. I am a bit confused. Draw the plots using google sheets or excel and please include pictures of the plots and directions on how you plotted it. Equation 3 and 4 are attached as images. Equation (3) is density independent because the population growth that takes place between time t and time t +1 does not depend on the population density N. That is, it is density independent because there is no N term on the right hand side of Equation (3). In contrast, one possible discrete time mathematical model that includes density dependence (equation 4) is where K is the carrying capacity (expressed in units of population density). Note that when Nt= K, the whole term in the exponent equals zero. Since e0 = 1, this means that the ratio Nt+1/Nt does not change from one year to the next when Nt = K. 1a) Draw a plot of the ratio of population densities in Eq. (3) as a function of N if you set if r = 0.05. 1b) Draw a plot of the ratio of…
PLEASE HELP! Question: In Benicia High’s school garden the carrying capacity for blue belly lizards is 300. If the current population size is 280 and the rmax is calculated to be 0.42. How many lizards will be in the population after 1 year? (show work)
bartleby SEARCH https://www.bartleby.com/questio... ASK AN EXPERT Science >> Biology » The logistic model incorporates carrying capacity to make the moc Question exponential The logistic model incorporates carrying capacity to make the model random density-dependent LIVE TUTORING density-independent Transcribed Image Text: The logistic model incorporates carrying capacity to make the model exponentia dependent random density-independent Type here to search HA
Task 3 The German national team scored the following numbers of goals in 50 randomly selected international matches Number of goals per match 1 2 3 4 18 22 5 3 2 Number of matches with this result In the following, assume that the goal numbers collected come from a simple random sample of the population of all international matches of the German national team. come from. 1. Determine the 95% confidence interval for the expected value of the number of goals in all international matches. 2. The standard deviation of goals per match in the population of all international matches is now given as o = 1, 0. How large must the sample size be so that the 95% confidence interval for u is not wider than 0.5 goals?
In what ways did you find the population simulator helpful/not helpful? Give two reasons.
Kudu Scenario Kudu are an antelope species found in easterm and southerm Africa. Male kuou have dramatically spiraled homs, which makes them a target of trophy hunters. Begin by setting up the following parameters: k= 100, r= 0.26, N, = 10. Use the gear icon to adjust the min & max values of N, and k to 2 and 200, respectively. Set the max value oft to 50. 25. At what time ("T value) do kudu populations reach their carrying capacity, given these parameters? 28. What happens to the growth rate of a kudu population as it gets closer and closer to its carrying сарacity? 27. What sorts of environmental changes might cause k to increase in this environment? What might cause k to decrease? 28. Trophy hunters move into the area, leading to an increased death rate, which decreases the growth rate rto 0.13. Exolain how this change will impact the population growth patten. [Hint Look at when the population now reaches its carrying capacity, given this decrease in r. Compare your original curve…
Survival (%) 100- 80- 60- 40- 20- 0-t T 2.1 ( T T T - 1.9 2 2.2 2.3 2.4 2.5 2.6 2.7 Log SVL (mm) Martin Wikelski and L. Michael Romero (Body size, performance and fitness in Galápagos marine iguanas, Integrative and Comparative Biology 43 [2003]:376-86) measured the snout-to-vent (anus) length of Galápagos marine iguanas and observed the percent survival of different-sized animals, all of the same age. The graph above shows the log snout-vent length (SVL, a measure of overall body size) plotted against the percent survival of these different size classes for males (dashed line) and females (solid line). Based on the figure above what type of selection for body size appears to be occurring in female marine iguanas? (A) balancing selection (B) disruptive selection C) stabilizing selection (D) directional selection (E) sexual selection
11.0 G. fortis 10.0- 1978 1976 9.0F 8.0 8.0 9.0 10.0 11.0 Midparent bill depth (mm) Geospiza is a genus of finches that inhabit the Galapagos Islands. In 1976, finches were grouped together based on the average depth of their bills. The data from the first generation of grouped finches are plotted on the X-axis. The bill depths of the offspring from each group are plotted on the Y-axis. In 1978, the experiment was repeated after a drought on the Galapagos Islands. The red line represents the data from 1976 and the blue line represents the data from 1978. The slope of both the red line is 0.90 and the slope of the blue line is 0.90. Was there any change in the heritability of the bill depth trait after the drought? Explain your reasoning. Offspring bill depth (mm)
Hardy-Weinberg Practice Problems: You need to list equations used and provide steps of problem solving. Providing answer itself is not enough for full grade. 1. You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 36%. Calculate the frequency of the heterozygous genotype, homozygous dominant genotype and homozygous recessive genotype. 2. You have sampled a population in which you know that the percentage of the homozygous recessive genotype (aa) is 49%. What is the frequency of the recessive allele, and the frequency of the dominant allele? What is the frequency of heterozygous genotype? 3. Within a population of butterflies, the color brown allele (B) is dominant over the color white allele (b). And, 16% of all butterflies are white. Given this simple information, calculate the percentage of butterflies in the population that are heterozygous, and the frequency of homozygous dominant individuals. 4. Sickle-cell anemia is a…