Manatee Diets

Determining manatee diets HSWRI researchers performed the first isotope analysis of Florida manatees as a baseline to determine wild manatee diets. Manatees feed on a variety of plants in fresh, estuarine and marine habitats, but it’s difficult to determine...

Elephant Seals

The double migration of elephant seals HSWRI researchers discovered that adult northern elephant seals, who both breed and molt on California’s Channel Islands, go to sea twice each year during which they range widely in the northern Pacific Ocean. Using new...

California Sea Lions

Effects of El Niño on California sea lions Prior to the 1983 El Niño, California sea lion populations in the Channel Islands were recovering from the low numbers that resulted from indiscriminate killing which had continued through the 1930s. HSWRI researchers...

Beluga Whales

Beluga whale response to oil drilling Belugas depend upon sound for many important biological functions such as foraging, navigation and communication. The territory of beluga whales overlaps the rich oil deposits in the arctic continental shelf. Oil exploration,...

Mono Lake Birds

Birds of Mono Lake Mono Lake is a key resting point for millions of migratory birds where they feed on brine shrimp.  Owens River water was diverted to the Los Angeles aqueduct in 1941. By 1982 the lake was reduced to 70% of 1941 levels, and by 1990 it was reduced to...

Killer Whale Antarctica

First killer whale calls recorded in Antarctica HSWRI researchers recorded for the first time killer whale calls in the Antarctic at McMurdo Station in January 1980. These killer whale calls were compared to other researchers’ recordings from Newfoundland to...