HOME >> BIOLOGY >> NEWS
USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey

tion. Understanding such cross-seasonal linkages may also help in detecting emerging threats to surf scoters in their northern breeding areas. To check out the travels of marked surf scoters in 2006, visit the maps at www.werc.usgs.gov/sattrack/. Susan Wainwright-De La Cruz will discuss cross-seasonal implications of mercury and selenium bioaccumulation by wintering surf scoters and the tracking effort through the 2005 nesting season. Susan Wainwright-De La Cruz, Session 40, Tuesday, Sep 26, 2006, 5:10 - 5:30 p.m.

Productivity of tundra swans breeding on the lower Alaska Peninsula:

The density of tundra swan (Cygnus columbianus columbianus) breeding pairs at Izembek National Wildlife Refuge (NWR) on the Lower Alaska Peninsula has decreased by nearly 75 percent over the past 25 years. Swans breeding in this area are unique because they are the most southwesterly breeding population of tundra swans and are the only known population of tundra swans to exhibit non-migratory behavior. Growing concerns about the status of swans breeding on the Alaska Peninsula, the unique behavior and characteristics of the Izembek population, and concerns regarding an increase in development and harvest pressure on or near Izembek NWR have prompted an assessment of past data. During the 20-year span of field studies, extensive aerial surveys of pairs and nests were conducted and the fate of over 500 nests and associated cygnets were monitored. We analyzed data collected between 1980 and 1987 to examine factors affecting nest, egg, and cygnet survival rates. We considered possible relationships between reproductive success and year, season date, cygnet age, neck collars, weather variables, nesting location, and brown bear densities. Nest survival rates for nests located in a portion of our study area known as the Cold Bay road system were considerably higher than for those in the remaining portion of our study ar
'"/>

Contact: Catherine Puckett
cpuckett@usgs.gov
352-264-3532
United States Geological Survey
25-Sep-2006


Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Related biology news :

1. World Wildlife Fund warns against iron dumping experiment near the Galapagos Islands
2. The Institute of Ecosystem Studies recognized by the Wildlife Society
3. Urban Wildlife Management book something to crow about
4. Scientists: Wildlife corridors benefit plant biodiversity, native plants
5. Wildlife Conservation Society joins Climate, Community & Biodiversity Alliance
6. Wildlife conservation and energy devt study seeks balance in Rockies
7. Wildlife researchers identify impacts of contamination in amphibians
8. Wildlife professor updates best available science on Florida panther
9. Injured whooping crane recovering at USGS Patuxent Wildlife Research Center
10. Climate change isolates Rocky Mountain butterflies
11. Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/7/2020)... ... January 06, 2020 , ... Myant Inc. , the pioneers in Textile ... bring to life its vision of a world where textile-based interfaces knitted into everyday ... digital sphere, and the physical IoT-enabled environment. The experience at Myant’s booth will challenge ...
(Date:12/30/2019)... ... 30, 2019 , ... Cure Now ? Instead of Palliative ... is the 6th leading cause of death in the United States. , ... other dementia. ,     These caregivers provided an estimated 18.5 billion hours of ...
(Date:12/21/2019)... ... ... The City of Tampa recently served as the host location of the ... Tampa welcomed these most-highly decorated USA heroes as the National Hockey League (NHL), The ... members. , The Medal of Honor, the USA military’s highest award for valor in ...
Breaking Biology News(10 mins):
(Date:12/18/2019)... , ... December 17, 2019 , ... ... its 31st FDA clearance for reprocessing Electrophysiology (EP) devices since the company’s inception ... Stryker Sustainability Solutions and SterilMed (a Johnson & Johnson company) have received 2 ...
(Date:12/18/2019)... ... 18, 2019 , ... Tune in to CNBC on Saturday, December 28th at ... listings for more information on this program. , With a look at Avatar ... complex system to increase the efficiency, safety and effectiveness of equipment, systems, and processes ...
(Date:12/6/2019)... ... December 06, 2019 , ... ... clearance for its latest CAPERE® Thrombectomy System for peripheral vascular, deep vein ... great benefits for first-in-line treatment for nonsurgical removal of soft emboli and ...
(Date:12/4/2019)... ... December 03, 2019 , ... ... today announced a partnership with the Recombinant Antibody Network (RAN), a consortium of ... San Francisco (UCSF) with a common goal to generate recombinant antibodies at a ...
Breaking Biology Technology:
Cached News: