Concept explainers
Videos
Introduction: Mark-recapture technique is used to estimate the
Answer to Problem 1TY
Correct answer: The estimated population size as per the data given will be 348.75 (that is 349). The formula for calculating marked recapture technique was used to calculate the estimated population size. Hence, the correct answer is option b.
Explanation of Solution
Reason for correct answer:
According to this formula, estimated population size can be calculated with marked recapture technique. The student in the first catch was able to mark 45 individuals. In his second capture after 2 week, he was able to capture 62 individuals. Out of 62 individuals, 8 were marked. By substituting the data in the formula, the estimated population size can be obtained:
Option b is given as “349”.
According to the data provided, the estimated population size of mosquito fish would be 349. Hence, the correct answer is option b.
Reasons for the incorrect answer:
Option a. is given as, “134”.
According to the data provided and the formula for calculating the estimated population size, the average population size of mosquito fish cannot be 134. The correct population size is 349. Hence option a. is incorrect.
Option c. is given as “558”.
According to the formula for calculating the estimated population size of mosquito fish and the data provided, the estimated population size cannot be 558. Hence, option c. is incorrect.
Option d. is given as, “1016”.
The estimated population size of the mosquito fish cannot be 1016 according to the data provided and calculations done. Hence, option d. is incorrect.
Option e. is given as; “22320”.
According to the formula for calculating the estimated population size of mosquito fish and the data provided, the estimated population size cannot be 22,320. Hence, option e. is incorrect.
Hence, the options a., c., d., and e. are incorrect.
The average estimated size of mosquito fish population based on the data provided is 349.
Want to see more full solutions like this?
Chapter 56 Solutions
Biology
- In an effort to measure the size of a bluegill population in a pond, you set 10 traps for bluegills. You catch and mark 40 with a tag on the tail fin and then release them. A week later you return to the pond and set 10 traps and you catch 40 more, of which 8 have a tag on the tail fin. What is the best estimate of the bluegill population in the pond?arrow_forwardYou have been tasked to estimate the number of pigeons along a lakeside in western Texas. To accomplish your assigned task, you capture 37 pigeons and mark them with PIT tags. You return to the site one week later and resample the population by capturing 52 pigeons. Of the 52, 30 are marked from your first sample. How many pigeons are in the population?arrow_forwardYou are contracted by the City of Ottawa to estimate the size of the population of small mouth bass in Dow's Lake. Using nets, you capture, mark, and release 48 bass. You return to Dow's Lake two weeks later and use the same techniques to sample more bass. This time, you capture 37 bass, 16 of which you had previously captured (marked ones). What is the estimated size of the population of small mouth bass in Dow's Lake?arrow_forward
- a) Estimate the population density of slugs in this study site.arrow_forwardUsing grey squirrels as an example, describe a population that would be of interest to a researcher. How would your approach to squirrels differ if you were going to measure tail length on a sample vs doing a census? Using white tailed deer as an example, describe a population that would be of interest to a researcher in Central Illinois. What variable might be of interest?arrow_forwardA large conservation agency in Austria is interested in the status of the endangered newt species, Triturus austriacus, and wants you to estimate population sizes. Describe at least two methods based on genetic markers such as microsatellites which could be used to estimate effective population size (NE). Compare their relative advantages and disadvantages.arrow_forward
- The neighborhood of a lake has a population of snails, which come out onto the sidewalk when the sprinklers come on, and the rest of the time they hide in the vegetation. If you catch 20, and mark them and, then, a week later, after they have had a chance to disperse into the population, you catch 15, and 6 have marks on them, what is the estimated size of the population?arrow_forwardThe mark-recapture method is used to estimate the population size of mountain yellow-legged frogs in the San Gabriel Mountains of southern California. 100 frogs are captured and marked. A week later, 50 frogs are captured, and 10 of them are marked. The total population size isarrow_forwardYou are contracted by the City of Ottawa to estimate the size of the population of small mouth bass in Dow's Lake. Using nets, you capture, mark, and release 48 bass. You return to Dow's Lake two weeks later and use the same techniques to sample more bass. This time, you capture 39 bass, 18 of which you had previously captured (marked ones). What is the estimated size of the population of small mouth bass in Dow's Lake? Round your answer to the closest whole value. You can round up or down if your answer is exactly between two values (i.e. 0.5).arrow_forward
- You have been put in charge of managing a population of the endangered pink fairy armadillo. The population is currently 500 (N=500). What kinds of information would need to have to determine how big the population will be in 10 years? What environmental influences might influence the accuracy of your prediction?arrow_forwardYou want to estimate the population size of giant squid. You go out a catch 10 giant squid and put radio collars on them. A month later you go out and capture 20 squid. Two of the squid have radio collars. What is the best estimate of the squid population size? Group of answer choices a. 100 b. 10 c. 200 d. 28 e. 500arrow_forwardThis figure plots the breeding populations of fur seals as they recovered from uncontrolled hunting. Based on this graph, what is the approximate carrying capacity of the fur seal's breeding habitat? 10 a) about 1,000 seals b) about 5,000 seals 6. c) about 10,000 seals 1915 1925 1935 1945 Year Data from K. W. Kenyon et al., A population study of the Alaska fur-seal herd, Federal Government Series: Special Scientific Report-Wildlife 12 (1954). © 2018 Pearson Education, Inc. Breeding male fur seals (thousands)arrow_forward
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education