Unified Interior Regions

Region 4: Mississippi Basin

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Year Published: 2020

Low-level detection of SFD-causing Ophidiomyces on Burmese Pythons in southwest Florida, with confirmation of the pathogen on co-occurring native snakes

Snake fungal disease (SFD), or ophidiomycosis, is caused by the fungus Ophidiomyces ophiodiicola (Allender et al. 2015; Lorch et al. 2015). SFD is widespread across wild populations in the eastern United States (Lorch et al. 2016) and is known to infect more than 30 species of snake in North America and Europe (Lorch et al. 2016; Franklinos et al...

Glorioso, Brad; Bartoszek, Ian A.; Lorch, Jeffrey M.

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Year Published: 2020

Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers

Recursive movement patterns have been used to detect behavioral structure within individual movement trajectories in the context of foraging ecology, home-ranging behavior, and predator avoidance. Some animals exhibit movement recursions to locations that are tied to reproductive functions, including nests and dens; while existing literature...

Picardi, Simona; Smith, Brian; Boone, Matthew E.; Frederick, Peter C.; Cecere, Jacopo G.; Rubolini, Diego; Serra, Lorenzo; Pirrello, Simone; Borkhataria, Rena R.; Basille, Mathieu

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Year Published: 2020

Oases of the future? Evaluating springs as potential hydrologic refugia in drying climates

Springs in water-limited landscapes are biodiversity hotspots and keystone ecosystems, disproportionately influencing surrounding landscapes despite their often small areas. Some springs served as evolutionary refugia during previous climate drying, supporting relict species in isolated habitats. Understanding whether springs will provide...

Cartwright, Jennifer M.; Dwire, Kathleen A.; Freed, Zach; Hammer, Samantha J.; McLaughlin, Blair; Misztal, Louise W.; Schenk, Edward J.; Spencer, John R.; Springer, Abraham E.; Stevens, Lawrence E.

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Year Published: 2020

Combining physical and species‐based approaches improves refugia identification

Climate‐change refugia – locations likely to facilitate species persistence under climate change – are increasingly important components of conservation planning. Recent approaches for identifying refugia at broad scales include identifying regions that are projected to experience less severe changes (climatic exposure), that contain a diversity...

Michalak, Julia; Stralberg, Diana; Cartwright, Jennifer M.; Lawler, Joshua J.

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Year Published: 2020

Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks

Disturbance refugia – locations that experience less severe or frequent disturbances than the surrounding landscape – provide a framework to highlight not only where and why these biological legacies persist as adjacent areas change but also the value of those legacies in sustaining biodiversity. Recent studies of disturbance refugia in forest...

Krawchuk, Meg A.; Meigs, Garrett; Cartwright, Jennifer M.; Coop, Jonathan D.; Davis, Raymond J.; Holz, Andres; Kolden, Crystal A.; Meddens, Arjan J.H.

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Year Published: 2020

Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7

The U.S. Geological Survey, in cooperation with the U.S. Centers for Disease Control and Prevention and the Maine Center for Disease Control and Prevention, assessed the chemical characteristics and the occurrence, distribution, and oxidation state of inorganic arsenic in drinking water from selected domestic well-water supplies in Maine in 2001–2...

Culbertson, Charles W.; Caldwell, James M.; Schalk, Luther F.; Manassaram, Deana; Backer, Lorraine C.; Smith, Andrew E.
Culbertson, C.W., Caldwell, J.M., Schalk, L.F., Manassaram, D., Backer, L.C., and Smith, A.E., 2020, Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7: U.S. Geological Survey Data Series 1125, 11 p., https://doi.org/10.3133/ds1125.

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Year Published: 2020

Scaling responses of leaf nutrient stoichiometry to the lakeshore flooding duration gradient across different organizational levels

Most wetlands have been subject to changes in flooding regimes by climate change and human activities, resulting in widespread alteration of wetland plants at different organizational levels. However, scaling the responses of wetland plants to changes in flooding regimes is still challenging, because flooding could indirectly affect wetland plants...

Chen, Yasong; Stagg, Camille; Cai, Yongjiu; Lü, Xiaotao; Wang, Xiaolong; Shen, Ruichang; Lan, Zhichun

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Year Published: 2020

A tropical cyclone-induced ecological regime shift: Mangrove forest conversion to mudflat in Everglades National Park (Florida, USA)

The ecological effects of tropical cyclones on mangrove forests are diverse and highly location- and cyclone-dependent. Ecological resistance, resilience, and enhancement are terms that describe most mangrove forest responses to tropical cyclones. However, in the most extreme cases, tropical cyclones can trigger abrupt and irreversible ecological...

Osland, Michael; Feher, Laura; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R.T.; Balentine, Karen S.; Tiling-Range, G.; Smith, Thomas J.; Cahoon, Donald

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Year Published: 2020

Developmental ecomorphology of the epibranchial organ of the silver carp, Hypophthalmichthys molitrix

Silver carp regularly consume and digest particles of food as small as 5 μm. This ability drives their efficient consumption of phytoplankton and because they feed low on the food chain they have an important place in aquaculture worldwide. In North America, where they are considered invasive, silver carp deplete food resources for native species...

Cohen, Karly E.; George, Amy E.; Chapman, Duane C.; Chick, John H.; Hernandez, L. Patricia

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Year Published: 2020

Sediments and the sea floor of the continental shelves and coastal waters of the United States—About the usSEABED integrated sea-floor-characterization database, built with the dbSEABED processing system

Since the second half of the 20th century, there has been an increase in scientific interest, research effort, and information gathered on the geologic sedimentary character of the continental margins of the United States. Data and information from thousands of sources have increased our scientific understanding of the character of the margin...

Buczkowski, Brian J.; Reid, Jane A.; Jenkins, Chris J.
Attribution: Coasts, Data, Tools, and Technology, Geology, Mapping, Remote Sensing, and Geospatial Data, Minerals, Oceans, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 3: Great Lakes, Region 4: Mississippi Basin, Region 6: Arkansas-Rio Grande-Texas-Gulf, Region 8: Lower Colorado Basin, Region 9: Columbia-Pacific Northwest, Region 10: California-Great Basin, Region 11: Alaska, Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands), United States of America, Deep Sea Exploration, Mapping and Characterization
Buczkowski, B.J., Reid, J.A., and Jenkins, C.J., 2020, Sediments and the sea floor of the continental shelves and coastal waters of the United States—About the usSEABED integrated sea-floor-characterization database, built with the dbSEABED processing system: U.S. Geological Survey Open-File Report 2020–1046, 14 p., https://doi.org/10.3133/ofr20201046.

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Year Published: 2020

Estimating the effect of winter cover crops on nitrogen leaching using cost-share enrollment data, satellite remote sensing, and Soil and Water Assessment Tool (SWAT) modeling

This study employed a novel combination of data (winter cover crop cost-share enrollment records, satellite remote sensing of wintertime vegetation, and results of Soil and Water Assessment Tool (SWAT) water quality simulations) to estimate the environmental performance of winter cover crops (WCC) at the watershed scale, from 2008 through 2017,...

Hively, W. Dean; Lee, Sangchul; Sadeghi, Ali M.; McCarty, Gregory W.; Lamb, Brian T.; Soroka, Alexander M.; Keppler, Jason; Yeo, In-Young; Moglen, Glenn E.

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Year Published: 2020

Joint seasonality in geographic and ecological spaces, illustrated with a partially migratory bird

As most species live in seasonal environments, considering varying conditions is essential to understand species dynamics in both geographic and ecological spaces. Both resident and migratory species need to contend with seasonality and balance settling in favorable areas with tracking favorable environmental conditions during the year. We present...

Basille, Mathieu; Watling, James I.; Romanach, Stephanie; Borkhataria, Rena R.

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USGS
November 21, 1996

The gasoline additive MTBE (methyl tert-butyl ether) was detected in some urban stormwater samples collected in 16 cities and metropolitan areas by the U.S. Geological Survey, but all detections of MTBE were less than the lower limit of the U.S. Environmental Protection Agency’s draft lifetime health advisory for drinking water.

USGS
September 4, 1996

The 350 employees of the U.S. Geological Survey’s Mid-Continent Mapping Center, U.S. Department of the Interior, received Vice President Al Gore’s Hammer Award in Rolla on September 4. The Mid-Continent Mapping Center employees were honored for their team-based approach to streamlining operations and making them more responsive to customers.

USGS
March 25, 1996

A minor earthquake with a preliminary estimated magnitude of 3.5 occurred in Clarke County, Mississippi, at 8:15 local time (9:15 EST) on March 25, according to the U.S. Geological Survey.