The population density of a particular insect species was determined to be 15,000 adults per hectare in the summer of 1996, 21,000 adults per hectare in the summer of 1997, and 29,400 adults per hectare in the summer of 1998. Based on these population estimates, what is your estimate of λ, the annual rate of geometric growth?

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#Question id: 12334

#Section 1: Ecology

If a meteor impact or volcanic eruption injected a lot of dust into the atmosphere and reduced the sunlight reaching Earth's surface by 70% for one year, all of the following marine communities most likely would be greatly affected except

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#Question id: 12333

#Section 1: Ecology

Coral animals

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#Question id: 12332

#Section 1: Ecology

With a few exceptions, most of the food chains studied by ecologists have a maximum of how many links?

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#Question id: 12331

#Section 1: Ecology

The species richness of a community refers to the

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#Question id: 12329

#Section 1: Ecology

In a tide pool, 15 species of invertebrates were reduced to eight after one species was removed. The species removed was likely a(n)

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#Question id: 12328

#Section 1: Ecology

The dominant species in a community is