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USGS Publications
Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS. Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.
Controls of the spatial variability of denitrification potential in nontidal floodplains of the Chesapeake Bay watershed, USA
Identifying floodplains with high rates of denitrification will help prioritize restoration projects for the removal of nitrogen. Currently, relationships of denitrification with hydrogeomorphic, physiographic, and climate (i.e., largescale) characteristics of floodplains are relatively unknown, even though these...
Korol, Alicia R.; Noe, Gregory; Ahn, Changwoo Evidence for widespread microbivory of endophytic bacteria in roots of vascularplants through oxidative degradation in root cell periplasmic spaces
In this chapter we present a hypothesis, and data supporting it, that vascular plants in diverse families possess symbiotic/endophytic bacteria that frequently vector on or within their seeds; seedlings degrade symbiotic bacteria within roots. Evidence of widespread microbivory was found in a survey for intracellular bacteria that we conducted...
White, James F.; Torres, Monica S.; Verma, Satish Kumar; Elmore, Matthew T.; Kowalski, Kurt P.; Kingsley, Kathryn L. Identification of conservation and restoration priority areas in the Danube River based on the multi-functionality of river-floodplain systems
Large river-floodplain systems are hotspots of biodiversity and ecosystem services but are also used for multiple human activities, making them one of the most threatened ecosystems worldwide. There is wide evidence that reconnecting river channels with their floodplains is an effective measure to increase...
Funk, Andrea; Martinez-Lopez, Javier; Borgwardt, Florian; Traunder, Daniel; Bagstad, Kenneth J.; Balbi, Stefano; Magrach, Ainhoa; Villa, Ferdinando; Hein, Thomas Modeling landowner interactions and development patterns at the urban fringe
Population growth and unrestricted development policies are driving low-density urbanization and fragmentation of peri-urban landscapes across North America. While private individuals own most undeveloped land, little is known about how their decision-making processes shape landscape-scale patterns of urbanization over time. We introduce a hybrid...
Koch, Jennifer; Dorning, Monica; Van Berkel, Derek B.; Beck, Scott M.; Sanchez, Georgina M; Shashidharan, Ashwin; Smart, Lindsey S.; Zhang, Qiang; Smith, Jordan W.; Meentemeyer, Ross K. Multi-element fingerprinting of waters to evaluate connectivity among depressional wetlands
Establishing the connectivity among depressional wetlands is important for their proper management, conservation and restoration. In this study, the concentrations of 38 elements in surface water and porewater of depressional wetlands were investigated to determine chemical and hydrological connectivity of three hydrological types:...
Yuan, Yuxiang; Zhu, Xiaoyan; Mushet, David M.; Otte, Marinus L. Decreased atmospheric nitrogen deposition in eastern North America: Predicted responses of forest ecosystems
Historical increases in emissions and atmospheric deposition of oxidized and reduced nitrogen (N) provided the impetus for extensive, global-scale research investigating the effects of excess N in terrestrial and aquatic ecosystems, with several regions within the Eastern Deciduous Forest of the United States found to be susceptible to negative...
Gilliam, Frank S.; Burns, Douglas A.; Driscoll, Charles T.; Frey, Serita D.; Lovett, Gary M.; Watmough, Shaun A. Using remote sensing to quantify ecosystem site potential community structure and deviation in the Great Basin, United States
The semi-arid Great Basin region in the Northwest U.S. is impacted by a suite of change agents including fire, grazing, and climate variability to which native vegetation can have low resilience and resistance. Assessing ecosystem condition in relation to these change agents is difficult due to a lack of a consistent and objective Site Potential (...
Rigge, Matthew B.; Homer, Collin G.; Wylie, Bruce K.; Gu, Yingxin; Shi, Hua; Xian, George Z.; Meyer, Debra K.; Bunde, Brett Movement ecology of reintroduced migratory Whooping Cranes
No abstract available.
Teitelbaum, Claire S.; Converse, Sarah J.; Fagan, William F.; Mueller, Thomas Reproduction and reproductive strategies relevant to management of Whooping Cranes ex situ
Due to the small population size (∼400 birds) and continuing threats to wild Whooping Cranes (Grus americana), an ex situ (captive) population is maintained to contribute to the recovery of the species. The goals of the captive breeding program are to provide opportunity for research and birds for reintroduction. However, reproduction...
Songsasen, Nucharin; Converse, Sarah J.; Brown, Megan Population dynamics of reintroduced Whooping Cranes
Because of the small size and restricted range of the Aransas-Wood Buffalo Population, reintroduction is a prominent element of the recovery effort to ensure persistence of Whooping Cranes (Grus americana). A fundamental objective of all Whooping Crane reintroduction efforts is the establishment of a self-sustaining population. Therefore...
Converse, Sarah J.; Servanty, Sabrina; Moore, Clinton T.; Runge, Michael C. Whooping Cranes past and present
The Whooping Crane (Grus americana), endemic to North America, is the rarest of all crane species. It is believed that in the early 1800s, the Whooping Crane was widespread in North America, though it was never very abundant. Whooping Crane numbers decreased precipitously as westward migration of Euro-American settlers converted ...
French, John B.; Converse, Sarah J.; Austin, Jane E. Reproductive failure in the Eastern Migratory Population: The interaction of research and management
The reintroduction of the Eastern Migratory Population of Whooping Cranes (Grus americana) has shown the most promise of any effort to date toward the establishment of a self-sustaining population. However, reproduction – including both nest success and chick survival – has been a major challenge. Here, we review the research and...
Converse, Sarah J.; Strobel, Bradley N.; Barzen, Jeb A.