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Publications

This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.  

Filter Total Items: 41771

Influence of niche breadth and position on the historical biogeography of seafaring scincid lizards

Niche breadth and position can influence diversification among closely related species or populations, yet limited empirical data exist concerning the predictability of the outcomes. We explored the effects of these factors on the evolution of the Emoia atrocostata species group, an insular radiation of lizards in the western Pacific Ocean and Indo-Australasia composed of both endemic and widespre
Authors
Jonathan Q. Richmond, Hidetoshi Ota, L Lee Grismer, Robert N. Fisher

Western purple martin (Progne subis arboricola) occurrence on the Siuslaw National Forest, Summer 2019

The western subspecies of the purple martin (Progne subis arboricola) is currently listed as a “critically” sensitive species in four ecoregions of western Oregon: Coast Range, Klamath Mountains, West Cascades, and Willamette Valley (Oregon Department of Fish and Wildlife, 2019). Importantly distinct from the abundant and widespread eastern subspecies (Progne subis subis), the western subspecies i
Authors
Joan Hagar, Eric Branch

Evidence that watershed nutrient management practices effectively reduce estrogens in environmental waters

We evaluate the impacts of different nutrient management strategies on the potential for co-managing estrogens and nutrients in environmental waters of the Potomac watershed of the Chesapeake Bay. These potential co-management approaches represent agricultural and urban runoff, wastewater treatment plant effluent, and combined sewer overflow replacements. Twelve estrogenic compounds and their meta
Authors
Shuiwang Duan, Luke R. Iwanowicz, Katia Noguera-Oviedo, Sujay S. Kaushal, Erik Rosenfeld, Diana Aga, Sudhir Murthy

Forest restoration and fuels reduction: Convergent or divergent?

For over 20 years, forest fuel reduction has been the dominant management action in western US forests. These same actions have also been associated with the restoration of highly altered frequent-fire forests. Perhaps the vital element in the compatibility of these treatments is that both need to incorporate the salient characteristics that frequent fire produced—variability in vegetation structu
Authors
Scott L. Stephens, Mike A. Battaglia, Derek J. Churchill, Brandon M. Collins, Michelle Coppoletta, Chad M. Hoffman, Jamie M. Lydersen, Malcolm P. North, Russell A. Parsons, Scott M. Ritter, Jens Stevens

Exploring the potential value of satellite remote sensing to monitor chlorophyll-a for U.S. lakes and reservoirs

Assessment of chlorophyll-a, an algal pigment, typically measured by field and laboratory in situ analyses, is used to estimate algal abundance and trophic status in lakes and reservoirs. In situ-based monitoring programs can be expensive, may not be spatially, and temporally comprehensive and results may not be available in the timeframe needed to make some management decisions, but can be more a
Authors
Michael Papenfus, Blake Schaeffer, Amina Pollard, Keith Loftin

Infectious diseases in Yellowstone’s wolves

No abstract available.
Authors
Ellen E. Brandell, Emily S. Almberg, Paul C. Cross, Andrew P Dobson, Douglas W. Smith, Peter J. Hudson

USGS Illinois River Monitoring and Evaluation

No abstract available.
Authors
Travis J. Harrison, Kevin D. Hop, Enrika Hlavacek, Brent C. Knights

Council Monitoring and Assessment Program (CMAP): User guide for the Gulf Coast Monitoring and Assessment Portal

The Resources and Ecosystems Sustainability, Tourist Opportunities, and Revived Economies of the Gulf Coast States Act (RESTORE Act Final Rule at 31 C.F.R. Part 34) was signed into law on July 6, 2012. The RESTORE Act calls for a regional approach to restoring the long-term health of the valuable natural ecosystem and economy of the Gulf Coast region. The RESTORE Act dedicates 80 percent of civil
Authors
Kevin Suir, Hana R. Thurman, Anthony Kuczynski, Philip Quibodeaux, Sumani Chimmula, Jake Howell, Heidi Burkart, Nicholas Enwright, Kari Cretini, Mark McKelvy

Emoia atrocostata (mangrove skink)

No abstract available.
Authors
Robert Reed, Lea' R. Bonewell, Gordon H. Rodda

An evaluation of noninvasive sampling techniques for Malayan sun bears

Traditional mark–recapture studies to estimate abundance and trends of Malayan sun bear (Helarctos malayanus) populations are impeded by logistics of live-trapping wild individuals. The development of noninvasive sampling techniques for monitoring sun bear populations is therefore crucial for targeted conservation action. Sun bears have short fur, and conventional hair-snagging devices are ineffec
Authors
Thye Lim Tee, Wai Ling Lai, Terence Kok Ju Wei, Ooi Zhuan Shern, Frank T. van Manen, Stuart P. Sharp, Siew Te Wong, Jactty Chew, Shyamala Ratnayeke

Ecological risk assessment of environmental stress and bioactive chemicals to riverine fish populations: An individual-based model of smallmouth bass Micropterus dolomieu

Ecological risk assessments play an important role in environmental management and decision-making. Although empirical measurements of the effects of habitat changes and chemical exposure are often made at molecular and individual levels, environmental decision-making often requires the quantification of management-relevant, population-level outcomes. In this study, we generalized a modeling frame
Authors
Yan Li, Vicki S. Blazer, Luke R. Iwanowicz, Megan K. Schall, Kelly Smalling, Donald E. Tillitt, Tyler Wagner