ESA EcoEd Digital Library (beta)
The Bearded Vulture (Gypaetus barbatus) is a threatened species. Many conservation programs aim to increase population size by improving survival and reproduction; however, density dependence may...
This is a photographic case study on the Yellow-rumped Warbler. This bird is unusual among warblers in its ability to eat Bayberry seeds. This ability give is a winter food source that minimizes...
This is the resource folder for a photographic case study on the Yellow-rumped Warbler. This bird is unusual among warblers in its ability to eat Bayberry seeds. This ability give is a winter food...
The Chilean Mockingbird (Mimus thenca) serves as the primary vector for transmission of mistletoe (Tristerix aphyllus) to its cactus host (Echinopsis chilensis) in Chile. A small proportion of the...
Floral nectar is offered by plants to animals as a reward for pollination. Nectar is usually clear and contains sugar and trace amounts of amino acids. Colored nectar also occurs, but is less common....
A community of wildflowers growing in a restored prairie in southwestern Wisconsin. The community pictured was open to foraging by meadow voles (Microtus pennsylvanicus), resulting in vegetation...
Habitat space is a limiting resource for coral-dwelling gobies. The species pictured, Gobiodon histrio, coexists with an ecologically similar species in the same genus, Gobiodon erythrospilus, by...
In this Experiment, students examine the relationships between demographic factors (economic, social, etc.) and environmental quality. Students observe and collect data on the differences in...
A female green orchid bee (Euglossa viridissima) gathers floral resins from a Clusia lanceolata plant to use in brood cell construction. A resin mass is visible on the hind leg. Almost 200 species of...
A female parasitoid wasp (Euplemus vuilletti) feeds on its host, a beetle larva (Callosobruchus maculatus), by puncturing the beetle's cuticle with its ovipositor. The wasp creates a feeding tube to...
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