You are analyzing observational data on interactions between populations oftwo species in a community colleceted over 24 years. Here are the data on a2-species graph.706050504040Number of Species B3023016342010657800Numbers = Observation year9101011121314151617181920001020304050607080Number of Species ASpecies A and Species B, respectively, arecommensalscompetitorsprey and predator

Commensals: Commensalism is a type of relationship where one species benefits while the other is…

You are analyzing observational data on interactions between populations of two species in a community colleceted over 24 years. Here are the data on a 2-species graph. 70 60 50 20 Number of Species B 20 20 7 6 5 4 3 2 1 8 -> 9 10 11 12 13 14 15 16 10 10 Numbers = Observation year 17 18 19 20 0 0 10 20 30 40 50 60 70 80 Number of Species A

You are analyzing observational data on interactions between populations of two species in a community colleceted over 24 years. Here are the data on a 2-species graph. 70 60 50 20 Number of Species B 20 20 7 6 5 4 3 2 1 8 -> 9 10 11 12 13 14 15 16 10 10 Numbers = Observation year 17 18 19 20 0 0 10 20 30 40 50 60 70 80 Number of Species A

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter19: Population And Community Ecology

Section: Chapter Questions

Problem 4RQ: Which of the following methods will provide information to an ecologist about both the size and...

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A student decides to use the mark-recapture technique to estimate thepopulation size of mosquitofish in a small pond near his home. In thefirst catch, he marked 45 individuals. Two weeks later, he captured 62individuals, of which 8 were marked. What is the estimated size of thepopulation based on these data?a. 134 c b. 349 c. 558 d. 1,016 e. 22,320
Plot survivorship curves for all three species illustrated in Table 1 on a single graph. Label the axes and provide a clear legend convert it and make use of legend, so for the first species it would be 6months=1unit, then for the second species 1yr=1unit, and the third species would be 50yrs=1unit
You have been researching the biodiversity of different species of lizards in the Florida Everglades. You select a one square acre plot of land and begin tagging and counting the different reptiles found in that area over 6 months. After 6 months of research, you collected the following data: Species Count Green Anole 16 Brown Anole 72 American Alligator 3 Burmese python 2 Corn Snake 9 Eastern Glass Lizard 8 Use the blanks below to answer the following questions: 1. What is the biodiversity index of the one acre lot observed? 2. If you collected the same information for a second square acre 10 miles away and determined that acre to have a biodiversity index of 0.37, would you consider the first area to be biologically diverse and why or why not? 3. What do you think is suppressing biodiversity in the first acre counted? a b c
Two species have the same initial population size of 48.00, as well as rates of b = 0.83 and d = 0.66. However, species A reproduces seasonally and species B reproduces relatively continuously. How much bigger would the population of species B be after five years as compared to species A?
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Researchers in Georgia collected survivorship data in populations of two plant species, elf orpine (Sedum smallii) and oneflower stitchwort (Minuartia uniflora). If the populations of each species started with 500 individuals, how many individuals would be present in each species after seven months? Find Number of elf orpine individuals at 7 months and Number of oneflower stitchworts individuals at 7 months? Month Elf orpine survivorship Oneflower stichwort survivorship 1 1.00 1.00 5 0.81 0.37 7 0.09 0.05 8 0.03 0.02 10 0.02 0.01 12 0.01 0.01 13 0.00 0.00
The northern hairy-nosed wombat has experienced historical population declines, though population have stabilized recently due to conservation efforts. While studying them researchers noticed the following fluctuations in (effective) population size: Year 1: 100 individuals Year 2: 90 individuals Year 3: 50 individuals Year 4: 75 individuals Year 5: 90 individuals Year 6: 95 individuals A. Given this information what is the long-term effective population size of this particular population over the six years? B. Assume that at the start of the study the researchers determined heterozygosity for this population to be 0.63 at microsatellite loci. What would you expect the heterozygosity to be at the end of the six years? (Answer part B)
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Which of the following is a conclusion drawn by the authors from the results of this study? Temperate marine invertebrate species are outcompeting endemic species which will soon become extinct in the surveyed areas. Tropical marine invertebrate species did replace temperate species from 1982 to 2021 in the surveyed areas. Tropical marine invertebrate species did not replace temperate species from 1982 to 2021 in the surveyed areas. The temperate marine invertebrate species density and richness will recover with sufficient monitoring and resources. Article Reference: Responses of intertidal invertebrates to rising sea surface temperatures in the southeastern Indian Ocean By: Fred E. Wells
Name two reasons that a large national park like Serengetior Yellowstone might not be adequate to effectivelyconserve a population of a threatened species. What solutionsexist to address these reasons?
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You want to estimate the population size of pink salmon in the upper pitt river and use a mark-recapture technique to do so. You mark 1313 individuals as they pass under the port mann bridge. two weeks later you recapture 2245 individuals in pitt lake of which 204 have marks on them. What is your estimate of the population size?