Biology and Ecosystems

Filter Total Items: 2,154
Date published: January 13, 2020
Status: Active

Targeted management of a small number of catchments may help reduce nitrogen loading to Chesapeake Bay

Largest projected reductions associated with decreasing agricultural fertilizer application

Contacts: Matthew Miller
Date published: January 10, 2020
Status: Active

Consequences of forest connectivity from beech bark disease in Pictured Rocks National Lakeshore in the Upper Peninsula of Michigan

In this study, we are working with Pictured Rocks National Lakeshore (PIRO, or Park) in the Upper Peninsula of Michigan (Figure 1) to produce multiple geospatial layers of Park forest connectivity to reveal the effects of beech bark disease (BBD). There has been a 92% mortality rate of American beech (Fagus grandifolia) since BBD was first discovered in the Park in 2001. Park...

Date published: January 9, 2020
Status: Active

Type of Wetlands Affect How Much Nitrogen is Removed from the Bay’s Tidal Rivers

Issue: Wetlands are important for removing nitrogen from rivers entering the Chesapeake Bay. More information is needed on how much nitrogen wetlands can remove.

Contacts: Gregory Noe
Date published: January 6, 2020
Status: Completed

Assessing Mammalian Predator Control to Protect Endangered Birds at Haleakalā National Park

USGS researchers assessed trends in non-native mammalian predator trapping methods designed to protect endangered ʻuaʻu and nēnē at Haleakalā National Park, Hawaiʻi.

Date published: January 6, 2020
Status: Active

Goose Population Dynamics in the California Central Valley and Pacific Flyway

USGS scientists and partners are studying how growing goose populations in the California Central Valley wintering areas are affecting ducks and other waterfowl.

Date published: January 6, 2020

Comprehensive Sturgeon Research Project Blog - 2020

The USGS Comprehensive Sturgeon Research Project is a multi-year, interdisciplinary research study to determine factors leading to spawning and survival of the endangered pallid sturgeon and the closely related shovelnose sturgeon. 

Click here to see last year's blog

Date published: December 20, 2019
Status: Active

Expanding Distribution of Chronic Wasting Disease

Chronic wasting disease (CWD) has been detected in 26 US states and three Canadian provinces in free-ranging cervids and/or commercial captive cervid facilities. CWD has been detected in free-ranging cervids in 24 states and two provinces and in captive cervid facilities in 17 states and three provinces.

Contacts: Bryan Richards
Date published: December 16, 2019
Status: Active

California Seafloor Mapping Program

The California Seafloor Mapping Program (CSMP) is a cooperative program to create a comprehensive coastal/marine geologic and habitat base map series for all of California's State waters. The California Ocean Protection Council (COPC) authorized funds to establish the CSMP in 2007 and assembled a team of experts from state and federal agencies, academia, and private industry to develop the...