White-breasted nuthatches and Downy woodpeckers both eat insects that hide in the furrows of bark in hardwood trees. The Downy woodpecker searches for insects by hunting from the bottom of the tree trunk to the top, whereas the white-breasted nuthatch searches from the top of the trunk down. These hunting behaviors best illustrate which of the following ecological concepts?

Community ecology is a branch of ecology that studies the factors that affect biodiversity and community structure. It examines the interactions between organisms in a habitat, including the distribution, structure, abundance, and interactions between coexisting populations.  Community ecology seeks to answer questions such as: How does the depth of a lake affect the complexity of the community living within it? Why do some places have more species than others? Is there competition in nature?   Community ecology focuses on interactions between populations as determined by specific... Show more

Community ecology is a branch of ecology that studies the factors that affect biodiversity and community structure. It examines the interactions between organisms in a habitat, including the distribution, structure, abundance, and interactions between coexisting populations. 

Community ecology seeks to answer questions such as:
How does the depth of a lake affect the complexity of the community living within it?
Why do some places have more species than others?
Is there competition in nature?  

Community ecology focuses on interactions between populations as determined by specific genotypic and phenotypic characteristics. These interactions include predation, herbivory, parasitism, detritivory, mutualism, and commensalism. 
Community ecology has a long history of studying the stability of ecological systems. Species interactions underlie ecosystem functions such as nutrient cycling and influence ecosystem structure.

Related Test: Basic Biology Practice Test: Population Ecology

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