Betsy Hartley

Wildlife

Displaying 1 - 6 of 6 resources

Hidden world of stream biodiversity revealed through water sampling for environmental DNA

Jul 23, 2019
For the first time, researchers have used a novel genomics-based method to detect the simultaneous presence of hundreds of organisms in a stream.

By Chris Branam | News Story

Extreme draining of Oregon reservoir aids young salmon and eliminates invasive fish

May 21, 2019
Low-cost, extreme draining of Fall Creek Reservoir aided downstream migration of juvenile chinook salmon – and led to the gradual disappearance of two species of predatory invasive fish in the artificial lake.

By Chris Branam | News Story

Young frogs that were stressed as tadpoles move less on land, putting their survival at risk

May 2, 2019
New Oregon State University research shows that juvenile northern red-legged frogs that have experienced climate-related stress as tadpoles are less likely to move on land, putting their survival at risk.

By Chris Branam | News Story

New scat study provides clues to puzzling existence of Humboldt martens in Oregon Dunes

May 1, 2019
Researchers are chipping away at solving a biological mystery on the central Oregon coast: the existence of an isolated population of a small but fierce forest predator that makes its home in the Oregon Dunes National Recreation Area.

By Chris Branam | News Story

Climate change negatively affects waterbirds in the American West

Mar 15, 2019
New research shows that recent climate change is having profound effects on wetlands across the American West – affecting birds that use these wetlands for breeding, migration and wintering.  

By Chris Branam | News Story

Slime proves valuable in developing method for counting salmon in Alaska

Jan 2, 2019
Scientists have published a novel method for counting Pacific salmon – analyzing DNA from the slime the fish leave behind in their spawning streams.

By Chris Branam | News Story