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Life science discipline (subject) is Ecology
Results 306 - 310 of 400
View Resource A leaf shows damage caused by necrosis (cell death) and chlorosis (insufficient chlorophyll production) due to a pathogenic fungus.

A leaf shows damage caused by necrosis (cell death) and chlorosis (insufficient chlorophyll production) due to a pathogenic fungus. Such damage reduces the photosynthetic area available to the plant....

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View Resource A sockeye salmon (Oncorhynchus nerka) in a small breeding stream in southwestern Alaska.

A sockeye salmon (Oncorhynchus nerka) in a small breeding stream in southwestern Alaska. Adult sockeye lay their eggs in the gravel of streams, rivers, or along the beaches of lakes in late summer...

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View Resource An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki).

An Antarctic starfish (Odontaster validus) climbs over an Antarctic scallop (Adamisium colbecki) in the coastal Ross Sea. Antarctic starfish are omnivores with a wide range of potential prey and an...

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View Resource A grey tree frog (Hyla versicolor).

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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http://www.esajournals.org/doi/abs/10.1890/02-5298
View Resource Pacific trillium (Trillium ovatum) flowering in the Siskiyou Mountains of Oregon.

Pacific trillium (Trillium ovatum) flowering in the Siskiyou Mountains of Oregon. Cascading effects of forest fragmentation include reduced recruitment of Pacific trillium as a result of positive...

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http://www.esajournals.org/doi/abs/10.1890/02-5111
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