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Describe the difference between population density and dispersion
Why do you think the population is located this way?
Step by step
Solved in 2 steps
- You are an ecologist studyiìng movement behavior of a bird population. You attach radio-transmitters to each member of several different populations of the bird, allowing you to measure precisely how many birds emigrate from each of the populations each year. You gather the following data: Bird population size 712 Total number of birds emigrating per year 163 27 244 68 71 20 642 186 12 389 93 Does emigration represent a density-dependent process in this population? Explain your answer briefly. Enter your answer hereIf you graphed the population size over time of a population experiencing logistic growth, what would it look like? a curved line that then levels off at K O a straight line continuing higher and higher O a curved line that then levels off at r O a curved line continuing higher and higherBy now, you must have already learned a lot about POPULATION DYNAMICS. How will you know that the population size increased/decreased? What are the indicators for the increase/decrease? What factors are known to be responsible for the increase/decrease? Give as many as you can think of.
- A population of 100 Asian elephants exhibits logistic growth. If the carrying capacity is 500 elephants and theper capita growth rate is 0.1 individuals/(individuals × year), what is the maximum population growth rate forthe population?In the logistic model of population growth what are N and K and what happens if N>K and explain why. Ho w is the population growth affected if N=K?A population of tamarisk leaf beetles breeds only in the spring and dies in a pulse at the end of the fall, with one time step per year. Beetles were introduced to the Albuquerque bosque with an initial size of 30 individuals and a finite rate of increase = 1.8. What was the population size five years later? Note: You need to first figure out which equation to use for this problem. O 10 beetles O 54 beetles 500 beetles O 564 beetles O 243,092 beetles
- How are the maps included here meaningful to the I-P*A*T equation? IPAT Equation: Impact = Population x Affluence x TechnologyWhen the of in = do + aN how do we the effects of "a" in this model? Choose at least one correct answer the negative effects of density on per capita birth rates B the density dependent per capita death rate the density independent per capita death rate the density independent growth rate the negative effects of density on per capita death rates E. Dinerent species feed on the nectar from flowers. One interesting example is the case in which bees and moths use the same food resources, but bees gather nectar by day while moths gather nectar by night. This pattern is a good example of: 125 Choose at least one correct answer A commensalism B. niche partitioning C competitive exclusion D intraspecific competition mutualismExplain how to estimate the per capita rate of increase in a population. How would you estimate intrinsic rate of increase?