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How do ecologists estimate
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- Why might an ecologist be interested in studying population dynamics?Which of the following questions fall under the category of population ecology? What factors influence the survival rate of a deer population? How does the introduction of a new predator affect the species in an ecosystem? How does sunlight affect the photosynthesis rate of a single tree? How does food availability affect the growth rate of a mouse population?Which of the following methods will provide information to an ecologist about both the size and density of a population? a. mark and recapture b. mark and release c. quadrat d. life table
- What are three ways an ecologist might capture an animal? one way an ecologist might sample a plant population in order to estimate numbers of plants?How does the study of population ecology help us understand why some populations grow, some remain stable, and others decline? a.) Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades? b.) What is carrying capacity? Do you think carrying capacity applies to people as well as to other organisms? Why or why not?Mark Recapture can be written as M N = R Define each term. Use this equation to answer the following question. Show your work. A biologist for Mosaic fertilizer company catches 26 Florida scrub jays as part of their monthly environmental monitoring. Each bird is given a band. The next month, they catch 32 birds. 13 of the birds have bands. What is the estimated population size of the birds in that area?
- How does the study of population ecology help us understand why some populations grow, some remain stable, and others decline?What is the estimated CARRYING CAPACITY of the population represented in the graph? * 600 ...... 500 роp 400 size 300 200 B. 100 TIME 385 О 290 575 О з30What defines the carrying capacity of a population? Choose All That Apply the maximum number of individuals a particular habitat can support an indicator of the functional requirements that individuals in a population need for growth and reproduction a reflection of the environmental resources that are needed to support a population
- Describe how ecologists measure population size and densityWhat is the relationship between population density and available resources? exponentially proportional There is no relationship. directly proportional inversely proportionalYou are a population ecologist studying animals in a national park, and park managers are asking for advice on how to focus their limited conservation funds. How would you rate the following three species, from most vulnerable (and thus most in need of conservation attention) to least vulnerable? Give reasons for your choices. • A bird that is a generalist in its use of habitats and resources • A salamander endemic to the park that lives in highelevation forest • A fish that specializes on a few types of invertebrate prey and has a large population size