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Patuxent Wildlife Research Center
Results: 571

#	Item
51	Patuxent Wildlife Research Center Population Change and Abundance of Black Ducks and Mallards in Eastern North America The Challenge: Over the last half of the 20th century, the breeding range of American black duck (Ana Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2012-12-19 14:58:55 Zoology Fauna of Europe Mallard American Black Duck Hunting Anas Ducks Ornithology
52	Patuxent Wildlife Research Center Energy Extraction in the Marcellus Shale and Environmental Quality The Challenge: Water resource quality is a primary concern relative to natural gas extraction from the Marcellus Shale. Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2014-04-10 07:40:34 Wetland Marcellus Formation United States Geological Survey Science Geology Aquatic ecology Geography of the United States
53	Patuxent Wildlife Research Center Making decisions for headwater stream conservation at the watershed scale The Challenge: Headwater stream ecosystems are important to natural resource managers not only because of th Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2014-12-16 09:31:37 Rivers Water streams Earth Sustainability Hydrology Conservation biology Adaptive management Drainage basin River source Water Environment Fluvial landforms
54	Patuxent Wildlife Research Center Hurricane Sandy Impacts on Coastal Wetland Resilience in the Northeast United States The Challenge: The high winds and storm surge associated with Hurricane Sandy impacted coastal wetlan Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2014-01-29 15:12:21 Wetland Fluid dynamics Tropical cyclone Meteorology Atmospheric sciences Aquatic ecology
55	Patuxent Wildlife Research Center Endocrine Active Effects on Turtle Embryonic Development The Challenge: Emerging contaminants may be in part responsible for recent endocrine disruption observed in fish in the Chesapeak Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2015-01-15 08:05:17 Endocrine disruptor Endocrinology Hatchling Poikilotherm Reproductive system Turtle Red-eared slider Egg Reptile Zoology Reproduction Biology
56	Patuxent Wildlife Research Center Avian Egg Injection Studies for Assessing Adverse Outcomes Associated with Exposure to Flame Retardants The Challenge: The use of flame retardants (FRs) as additives in a variety of cons Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2015-01-13 10:16:48 Persistent organic pollutants Organic chemistry Decabromodiphenyl ether Endocrine disruptors Tetrabromobisphenol A Diphenyl ether Bisphenol A Flame United States Geological Survey Flame retardants Organobromides Chemistry
57	Patuxent Wildlife Research Center Multigenerational and egg injection studies for endocrine disruptive chemicals in birds The Challenge: Wildlife are exposed throughout their lives to low levels of natural and synthetic Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2015-01-16 13:46:53 Medicine Hormone Trenbolone Hexabromocyclododecane Endocrine system Endocrinology Biology Endocrine disruptor
58	Patuxent Wildlife Research Center Making decisions for headwater stream conservation at the watershed scale The Challenge: Headwater stream ecosystems are important to natural resource managers not only because of th Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2014-12-16 09:31:37 Rivers Water streams Earth Sustainability Hydrology Conservation biology Adaptive management Drainage basin River source Water Environment Fluvial landforms
59	Patuxent Wildlife Research Center Response of Migrating Birds to Hurricane Sandy The Challenge: Each autumn, millions of landbirds migrate from breeding areas in the U.S. and Canada to more southerly wintering areas. Be Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2015-01-26 15:19:10 Ornithology Dendroica Biology Bird Blackpoll Warbler Zoology Bird flight Bird migration
60	Patuxent Wildlife Research Center Response of Migrating Birds to Hurricane Sandy The Challenge: Each autumn, millions of landbirds migrate from breeding areas in the U.S. and Canada to more southerly wintering areas. Be Add to Reading List Source URL: www.pwrc.usgs.gov Language: English - Date: 2015-01-26 15:19:10 Ornithology Dendroica Biology Bird Blackpoll Warbler Zoology Bird flight Bird migration

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