Scientists catalogue shark and ray distribution in Florida lagoon

Many elasmobranch species, which include sharks, skates, and rays, use estuaries as nurseries, for birthing, and as foraging grounds. Florida's Indian River Lagoon is one of 28 estuaries designated as an "estuary of national ...

Research shows that soil calcium limits forest songbirds

Acid rain and subsequent calcium depletion of forest soils in eastern North America may be limiting forest songbird populations, according to a researcher in Penn State's College of Agricultural Sciences.

Study finds indications for recovery after ecosystem pollution

Environmental damage caused by human activity can reduce the number of plant and animal species dramatically. At the same time, very little is known about how biodiversity recovers after ecosystem pollution is curtailed and ...

Manatee deaths lead to lawsuit from conservation groups

Conservation groups sued the federal government Tuesday over last year's record manatee deaths, saying the government failed to follow the law by designating protected habitat for the marine mammals.

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