Ecology Quiz Review

How could a hurricane negatively impact the transfer of energy within a food web? Select all that apply.

• high winds could damage plant life such as trees and agriculture, that can weaken patterns of energy transfer from producer to consumer

• flooding could remove bacteria and contamination from the area, reducing diseases in plants and animals

• flooding can cause destruction to shelters of primary consumers, reducing population and a food source for organisms that prey on them

• flooding could bring in new fish, decreasing the transfer of energy from consumer to producer.

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How might a forest fire affect the energy transfer in a food web including white pine, deer, mice, hawks and squirrels? There is a decrease in the squirrel population and a decrease in the white pine population. Select all that apply

• decrease in white pine will increase the energy transfers from producer to consumer and deer population would remain stable

• decrease in the squirrel population would cause a decrease in the deer, hawk and white pine populations

• decrease in white pine would decrease the available food for deer causing deer to potentially leave the area

• consumer populations could lose their habitats, causing the populations to leave the area

• decrease in dquirrel population would decrease a food source for the hawk. Hawks would consume more mice, causing decline in mice population

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How can overfishing bass affect the transfer of energy in a food web?

• if bass population decreases, the trout would increase and sea cucumber would decrease. The energy transfers would change.

• if bass decrease, trout would remain unchanged, the energy transfer would stay the same.,

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In the 1800s, European rabbits were considered an invasive species in Australia. How would European rabbits affect the transfer of energy in Australia's ecosystems?

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Suppose lion's have been mainly hunting gazelle in the ecosystem. How would this impact the transfer of energy in the food web? Lions also feed on zebras and wildebeest.

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Hurricanes, floods, tornadoes, volcanoes, and wildfires are examples of ___. If a wildfire occurs within a forest, the loss of vegetation leads to ___. Also, some organisms relocate to new areas, which leads to ___ and a decrease in ____. All of these occurrences can affect the transfer of energy in a food web.

• population changes, overpopulation, ecosystem stability, primary succession

• natural disasters, loss of habitat, changes in population size,

  food sources

• natural disasters, overpopulation, changes in population size, primary succession

• population changes, loss of habitat, ecosystem stability, food sources

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