Using the data shown in Table 1, Provide two explanations as to why the densities of the beetles may be different in each habitat in no more than 100 words.
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Using the data shown in Table 1, Provide two explanations as to why the densities of the beetles may be different in each habitat in no more than 100 words.
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- Below is a cohort life table for a population of unicorn shrimp. For individuals of age 2, the survival rate is ________ and survivorship is ________. A. 0.3; 0.5 B. 0.4; 0.5 C. 0.5, 0.6 D. 0.5; 0.3 E. 0.6; 0.5The per capita growth rate of a population where dispersal is not a factor is expressed as (a) i + e (b) b d (c) dN/dt (d) rN(K N) (e) (K N) KIn a particular population of Paramecium species, 30 Paramecia were found in 4 mL of sample pond water. At another location, 85 Paramecia were found in 40 mL of sample pond water. What is the change in density of the Paramecium species? Express your answer rounded to two decimal places.
- Figure 5. This figure shows the number of individuals of three tree species (Blue Pine, Black Oak, and Rusty Cactus) on a woodlot in eastern Ontario, Canada. For each statement, select TRUE if it is consistent, or FALSE if it is not consistent with the information presented above. In 1980, the deaths and emigration of Blue Pine must have been much greater than the births and immigration of Blue Pine. options: True FalseDate Juncos previously banded (r) Captured, already banded (r) Captured, new individual Total number captured on that date (s) Estimated population size (N) 11-Jan 39 14 9 16 - Jan 48 4 7 23 - Jan 55 2 8 30 - Jan 63 8 2 6 - Feb 65 6 5 Complete the table by following the Mark Recapture Formula.A large population of 100,000 bugs lives inside of building. A smaller population of 1,000 cockroaches colonized an eating area in the construction site. Each generation, approximately one migrant enters the construction site population. What do you expect FST (or FIM) is between the SR2 and construction site populations?
- 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?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 o spring• Each o spring 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 o spring• Each o spring 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.Which of the following populations would be growing? a) Geometric rate (1) = 0.63 b) Exponential growth rate (r) = 0.63 c) Net reproductive rate (R0) = 0.63 d) All of the above populations are growing
- 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.Miss l is bored in the summer, so she wants to estimate the population of weeds on her property. The property measures 20 m x 20 m. She randomly places ten 1 m x 1 m quadrats on her property as shown in the diagram below. What is the estimated population size?In April, a population of frogs in a local ravine had a population of 42, which was increased in May by 263 tadpoles. Pesticide runoff killed 26 tadpoles, and predators consumed 8 frogs. In July construction workers began clearing the ravine and ran over 12 frogs. Calculate the population growth rate of the frogs in the ravine from April to August.