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Discipline Specific Core Concepts is Ecological Core Concepts -- Communities -- Spatial and temporal dynamics
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View Resource Aerial view of forest fire in pine forest in the Everglades National Park.

Fire is a natural factor that maintains the pinelands and other natural communities in South Florida. The frequency of these fires is influenced by large-scale climate cycles, particularly El Nino...

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View Resource An ant (Crematogaster opuntiae) visits an extrafloral nectary of a fishhook barrel cactus (Ferocactus wislizeni).

An ant (Crematogaster opuntiae) visits an extrafloral nectary of a fishhook barrel cactus (Ferocactus wislizeni). In many mutualistic species interactions, a suite of species in one guild exchanges...

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View Resource A mountain scene in Yukon, Alaska depicts how vegetation changes from the base to the top of the mountain due to differences in elevation and topograp

A mountain scene in Yukon, Alaska depicts how vegetation changes from the base to the top of the mountain due to differences in elevation and topography. The base of the mountain is vegetated by...

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View Resource The East Front of the Northern Rocky Mountains in Montana showing the transition between prairie and forest.

The East Front of the Northern Rocky Mountains in Montana shows the transition between prairie and forest. In this region, limber pine (Pinus flexilis) is an early successional tree. It facilitates...

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View Resource Elk (Cervus elaphus) search for food through snow in winter in the Rocky Mountains.

Elk (Cervus elaphus) and other ungulates in the Rocky Mountains of North America must cope with food shortages and severe weather during winter. The strength of density-dependence in these ungulate...

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