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Scientists have discovered that predators like American kestrels can take the place of pesticides.
Installing nest boxes in agricultural fields may increase numbers of American kestrels.
A young American kestrel that was born in a nest box perches in a field of blueberry bushes.
Nest box preparation begins in winter, here in February, in time for adult kestrels to lay eggs.
Next step: transporting the nest box and its pole to an agricultural field.
Researchers install a nest box in a field of blueberry bushes in Michigan.
The Arecibo Observatory in Puerto Rico.
Scientists have found underground water reservoirs that can mitigate drought effects.
NSF Eel River CZO researchers drill a borehole to monitor forest groundwater.
An Eel River CZO study site is covered with sensors to monitor water flow.
Scientist Daniella Rempe studies how water flow is linked with ecological and geophysical processes.
Researchers at the Eel River CZO site study bedrock as a source of water during the dry season.
Looking far beneath tree roots brought the discovery of a hidden "well" of water.
The National Science Foundation invests in fundamental, basic research in science and engineering.
As some tree species shift northward, it's the tale of the spruce vs. the hare in northern Alaska.
These Alaska spruce trees and deciduous shrubs show evidence of heavy browsing by snowshoe hares.
Spruce seedling at the NSF Bonanza Creek LTER site that's been severely browsed by snowshoe hares.
A researcher examines white spruce trees killed by hare-browsing in northern Alaska.
Snowshoe hares dig for mineral-laden soils to eat; they use soils to deactivate tannins in forage.
Snowshoe hares also browse on willow trees, here in early spring along Alaska's Dietrich River.