A grey tree frog (Hyla versicolor). Amphibian species are declining globally, and pesticides may play a role, but their concentrations are often low in nature. Carbaryl is a common pesticide that can...
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This experiment illustrates how ecological theory can help conserve native species in a
fragmented landscape. It is germane to units on biogeography, human impacts on
ecosystems, landscape...
To investigate how species, communities, and habitats change over the rural-urban (or pristine to human-dominated) gradient students conduct a series of biological inventories, field measurements,...
Juvenile loggerhead sea turtle (Caretta caretta) in a plastic pail in South Carolina. Loggerheads are an endangered species, populations of which are declining in part due to human interference with...
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Photo of a hatchling loggerhead sea turtle (Caretta caretta) on a beach in South Carolina. Female loggerheads lay their eggs on land and juveniles, such as the one pictured here, migrate from the...
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Photo of a hatchling loggerhead sea turtle (Caretta caretta) entering the surf on a beach in South Carolina. After hatching, juvenile sea turtles are guided to the ocean by celestial light...
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Example of artificial lighting along a beach. Artificial lights inhibit the reproduction of loggerhead sea turtles (Caretta caretta) in two ways. First, adult females tend to avoid laying their eggs...
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Image of a loggerhead sea turtle (Caretta caretta) hatchery in South Carolina. Nests are placed in an area where they are protected in varying degrees from natural or anthropogenic hazards. Efforts...
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These Landsat images show Kenya’s Masai Mara Reserve on December 4, 1994, a year with normal rainfall, and November 27, 2009, a year when the rains failed and a severe drought overtook the land. The...
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