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Blackburnian warbler

Bay-breasted warbler

Myrtle warbler

Blackburnian warbler

Bay-breasted warbler

Myrtle warbler

Interpreting Graphics Examine the figure above. These three warbler species each feed on insects in spruce trees at the same time. However, each species tends to forage in a different area of the tree.

a. What ecological process is demonstrated by the feeding patterns of these species?

b. In some areas, there are five species of warblers that feed in spruce trees. Form a hypothesis about the feeding patterns of the other two species.

17. Analyzing Concepts Can two species that never come in contact with each other compete for the same resource? Explain your answer.

18. Analyzing Relationships Some plants are pollinated by only one pollinator. Explain why this situation might benefit the plant. How could this relationship be a danger to the plant species?

Making Inferences Explain why measuring the species evenness of a community is usually harder than measuring species richness.

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