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Ecological Core Concepts -- Applied ecology -- Management

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View Resource A herd of alpine ibex (Capra ibex) struggling to move through deep snow.

A herd of alpine ibex (Capra ibex) struggles through deep snow. A recent study examined 45 years of census data for a population of alpine ibex in Gran Paradiso National Park in northwestern Italy....

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View Resource A male Klug's clearwing butterfly (Dircenna klugii klugii) foraging on a coffee flower (Coffea arabica) in Finca Irlanda, Soconusco region, Chiapas

A male Klug’s clearwing butterfly (Dircenna klugii klugii) foraging on a coffee flower (Coffea arabica) in the Soconusco region of Chiapas, Mexico. Shade-grown coffee certification programs...

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View Resource A mosaic of fields and forests in the Willamette Basin, Oregon, USA.

Different land uses have created a varied landscape in the Willamette Basin of Oregon that supports a rich array of species as well as an array of economic activities. Researchers have recently...

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View Resource Aerial view of the upper Willamette River, Oregon.

Aerial view of the upper Willamette River, Oregon. Although some off-channel features and riparian forest remain, particularly in upper reaches as illustrated here, overall the Willamette River has...

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View Resource Agapostemon sweat bee

As global food demand increases, farmers are increasingly relying on single, managed bee species (often honey bees) to pollinate their crops. However, honey bees are not the best pollinators for all...

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View Resource An African elephant (Loxodonta africana) in a savannah ecosystem within Kruger National Park, South Africa.

African elephants (Loxodonta Africana) have an important impact on that ecosystem type, influencing its structure, function, and composition. In Kruger National Park, South Africa, park scientists,...

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View Resource Biodiversity Responses across a Gradient of Human Influence

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,...

View Resource Ecological Impacts of High Deer Densities

This Figure Set explores the complexity of forest ecosystems with particular emphasis on the effects of expanding white-tailed deer (Odocoileus virginianus) populations on trees, birds, and people....

View Resource Exploring the population dynamics of wintering bald eagles through long-term data

ISSUES: DATA SET Exploring the population dynamics of wintering bald eagles through long-term data THE ECOLOGICAL QUESTION: How does a bald eagle population change over time at a winter...

View Resource Heavily browsed willows (Salix spp.) on the floodplain of East Blacktail Creek, in Yellowstone National Park, Wyoming, during peak spring runoff.

The floodplain lacks young willows (Salix spp.) and is dominated largely by upland grasses and herbaceous dicots. Bank and channel erosion are prominent. Willows decreased in stature and abundance...

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