Can We Make Wind Power Compatible with Wildlife?
This story is a case study on wind energy and bats in Hawaii that communicates the impact and value of USGS science to people and the environment.See the story
Mission Areas L2 Landing Page Tabs
Researchers sample water, soil or air to look for presence of Environmental DNA (eDNA), genetic material shed from living or once live organisms whose presence is difficult to detect under traditional sampling methods.
Implications of the circumpolar genetic structure of polar bears for their conservation in a rapidly warming Arctic
We provide an expansive analysis of polar bear (Ursus maritimus) circumpolar genetic variation during the last two decades of decline in their sea-ice habitat. We sought to evaluate whether their genetic diversity and structure have changed over this period of habitat decline, how their current genetic patterns compare with past patterns, and how...Peacock, Elizabeth; Sonsthagen, Sarah A.; Obbard, Martyn E.; Boltunov, Andrei N.; Regehr, Eric V.; Ovsyanikov, Nikita; Aars, Jon; Atkinson, Stephen N.; Sage, George K.; Hope, Andrew G.; Zeyl, Eve; Bachmann, Lutz; Ehrich, Dorothee; Scribner, Kim T.; Amstrup, Steven C.; Belikov, Stanislav; Born, Erik W.; Derocher, Andrew E.; Stirling, Ian; Taylor, Mitchell K.; Wiig, Øystein; Paetkau, David; Talbot, Sandra L.
Evaluating and ranking threats to the long-term persistence of polar bears
The polar bear (Ursus maritimus) was listed as a globally threatened species under the U.S. Endangered Species Act (ESA) in 2008, mostly due to the significant threat to their future population viability from rapidly declining Arctic sea ice. A core mandate of the ESA is the development of a recovery plan that identifies steps to maintain viable...Atwood, Todd C.; Marcot, Bruce G.; Douglas, David C.; Amstrup, Steven C.; Rode, Karyn D.; Durner, George M.; Bromaghin, Jeffrey F.
Anatomy of an eradication effort: Removing Hawaii's illegally introduced axis deer
In February 2011, a rancher in the rural southern part of Hawaii Island reported a large mammal on her land. Her call mobilized several agencies led by the Big Island Invasive Species Committee (BIISC), a partnership to prevent, detect, and control the establishment and spread of invasive species, to sit up and take notice. Agency biologists...Hess, Steven C.; Muise, Jake; Schipper, Jan
Fifty-sixth supplement to the American Ornithologists' Union: Check-list of North American Birds
This is the 15th supplement since publication of the 7th edition of the Check-list of North American Birds (American Ornithologists' Union [AOU] 1998). It summarizes decisions made between May 15, 2014, and April 15, 2015, by the AOU's Committee on Classification and Nomenclature - North and Middle America. The Committee has continued to operate...Chesser, R. Terry; Banks, Richard C.; Burns, Kevin J; Cicero, Carla; Dunn, Jon L.; Kratter, Andrew W.; Lovette, Irby J.; Navarro-Siguenza, Adolfo G.; Rasmussen, Pamela C.; Remsen, J V; Rising, James D.; Stotz, Douglas F.; Winker, Kevin
Microsatellite variation and rare alleles in a bottlenecked Hawaiian Islands endemic: implications for reintroductions
Conservation of genetic biodiversity in endangered wildlife populations is an important challenge to address since the loss of alleles and genetic drift may influence future adaptability. Reintroduction aims to re-establish species to restored or protected ecosystems; however, moving a subset of individuals may result in loss of gene variants...Reynolds, Michelle H.; Pearce, John M.; Lavretsky, Philip; Seixas, Pedro P.; Courtot, Karen
An assessment of arthropod prey resources at Nakula Natural Area Reserve, a potential site of reintroduction for Kiwikiu (Pseudonestor xanthophrys) and Maui `Alauahio (Parareomyza montana).
Hawaiian forest birds have declined dramatically since humans arrived in the archipelago. Birds from all foraging guilds have been affected but insectivorous species are currently at greatest risk of extinction. On the island of Maui, populations and ranges of the insectivorous kiwikiu (Maui parrotbill; Pseudonestor xanthophrys) and Maui ‘...Banko, Paul C.; Peck, Robert W.; Cappadonna, Justin; Steele, Claire; Leonard, David L.; Mounce, Hanna L.; Becker, Dusti; Swinnerton, Kirsty
Ants of the national park of American Samoa
American Samoa makes up the eastern end of the Samoan Archipelago. On the islands of Tutuila, Taʽū and Ofu, the National Park of American Samoa (NPSA) protects about 4,000 ha of coastal, mid-slope and ridge-top forest. While the ant fauna of the Samoan Archipelago is considered relatively well documented, much of NPSA has never been surveyed for...Banko, Paul C.; Peck, Robert W.
Climate change and vulnerability of bull trout (Salvelinus confluentus) in a fire-prone landscape.
Linked atmospheric and wildfire changes will complicate future management of native coldwater fishes in fire-prone landscapes, and new approaches to management that incorporate uncertainty are needed to address this challenge. We used a Bayesian network (BN) approach to evaluate population vulnerability of bull trout (Salvelinus confluentus) in...Falke, Jeffrey A.; Flitcroft, Rebecca L; Dunham, Jason B.; McNyset, Kristina M.; Hessburg, Paul F.; Reeves, Gordon H.
Evaluating nurse plants for restoring native woody species to degraded subtropical woodlands
Harsh habitats dominated by invasive species are difficult to restore. Invasive grasses in arid environments slow succession toward more desired composition, yet grass removal exacerbates high light and temperature, making the use of “nurse plants” an appealing strategy. In this study of degraded subtropical woodlands dominated by...Yelenik, Stephanie G.; DiManno, Nicole; D’Antonio, Carla M.
Long-term growth-increment chronologies reveal diverse influences of climate forcing on freshwater and forest biota in the Pacific Northwest
Analyses of how organisms are likely to respond to a changing climate have focused largely on the direct effects of warming temperatures, though changes in other variables may also be important, particularly the amount and timing of precipitation. Here, we develop a network of eight growth-increment width chronologies for freshwater mussel species...Black, Bryan A.; Dunham, Jason B.; Blundon, Brett W.; Brim-Box, Jayne; Tepley, Alan J.
Moving from awareness to action: Advancing climate change vulnerability assessments and adaptation planning for Idaho and Montana National Forests
No abstract available.Kershner, Jessi; Torregrosa, Alicia; Woodward, Andrea
North Cascades National Park Service Complex
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators...Hoffman, Robert; Woodward, Andrea; Haggerty, Patricia K.; Jenkins, Kurt J.; Griffin, Paul C.; Adams, Michael J.; Hagar, Joan; Cummings, Tonnie; Duriscoe, Dan; Kopper, Karen; Riedel, Jon; Marin, Lelaina; Mauger, Guillaume S; Bumbaco, Karen; Littell, Jeremy S.
Dungeness crab - Scuba divers from the U.S. Geological Survey’s Western Fisheries Research Center, Washington Sea Grant, EPA and the Lower Elwha Klallam Tribe collected data and images from a long-term study of the Elwha River dam removals and the resulting effects on the nearshore ecosystem.
Location: Strait of Juan de Fuca, near the Elwha River
USGS scientists collect data for a landscape genetics study in the sagebrush of the Great Basin.
A female silky flycatcher with a mistletoe berry in her beak. These flycatchers are intimately tied to mistletoe. They build their beautiful cup nests (much like a large hummingbird nest) within the mistletoe, or nearby. The young hatch during February when the mistletoe may be in flower and supply a rich source of insect nutrients for growing young. The rest of the year, and especially during...
Coastal tailed frog male dorsal side, Brush Crk, OR
Adult Oregon spotted frog at Dilman Meadows, near Wickiup Reservoir, OR
Random Site: 3MS18 (L1) West Transect; Depth: 10.9 m (35.9 feet); Distance from river mouth: 2.3 Kilometers (1.4 Miles) west; Pre/Post Dam Removal: 3 year pre-dam removal; Lat/Long: 48.13957527,-123.59427175; Site Description: This transect is medium depth with substrate that varies from all fine sediment/sand/mud, some on top of bedrock, to areas of large boulders. Large brown seaweed is...
Permanent Site: J1 East Transect; Depth: 9.5 Meters (31.2 Feet); Distance from river mouth: 6.7 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 1 year pre-dam removal; Lat/Long: ; Site Description: This site is medium depth. Substrates is a gravel/cobble/sand mixture with an occasional boulder. Seaweed is abundant, especially three-ribbed kelp Cymathere triplicata (0:21, 1:06 seconds) and...
Permanent Site: J1 West Transect; Depth: 9.2 Meters (30.2 Feet); Distance from river mouth: 6.6 Kilometers (4.1 Miles) east; Pre/Post Dam Removal: 1 year pre-dam removal; Lat/Long: 48.13607725,-123.48002186; Site Description: This site is medium depth. Substrates is a gravel/cobble/sand mixture with an occasional boulder. Seaweed is abundant, especially three-ribbed kelp Cymathere triplicata (...