Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10351
Acris blanchardi (Blanchard's Cricket Frog), Predation Acris blanchardi (Blanchard's Cricket Frog), Predation
Invertebrates are well-known predators of amphibians with many documented cases of spiders preying upon anurans (reviewed in Toledo 2005. Herpetol. Rev. 36:395–400). Wolf spiders are known to feed on a variety of frogs, including those in the genus Acris (Blackburn et al. 2002. Herpetol. Rev. 33:299). Although typically terrestrial, wolf spiders have been found feeding on arboreal frogs...
Authors
Brittany R. Maldonado, Brad Glorioso, Raymond P. Kidder
Low-level detection of SFD-causing Ophidiomyces on Burmese Pythons in southwest Florida, with confirmation of the pathogen on co-occurring native snakes 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. 2017). No known phylogenetic or...
Authors
Brad Glorioso, Ian A. Bartoszek, Jeffrey M. Lorch
Source switching maintains dissolved organic matter chemostasis across discharge levels in a large temperate river network Source switching maintains dissolved organic matter chemostasis across discharge levels in a large temperate river network
Dissolved organic matter (DOM) helps regulate aquatic ecosystem structure and function. In small streams, DOM concentrations are controlled by transport of terrestrial materials to waterways, and are thus highly variable. As rivers become larger, the River Continuum Concept hypothesizes that internal primary production is an increasingly important DOM source, but direct evidence is...
Authors
J.D. Hosen, K.S. Aho, Jennifer H. Fair, E.D. Kyzivat, S. Matt, Jonathan Morrison, A. Stubbins, L.C. Weber, B. Yoon, P.A. Raymond
Analysis of movement recursions to detect reproductive events and estimate their fate in central place foragers 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 recognizes that, no method is currently...
Authors
Simona Picardi, Brian Smith, Matthew E. Boone, Peter C. Frederick, Jacopo G. Cecere, Diego Rubolini, Lorenzo Serra, Simone Pirrello, Rena R. Borkhataria, Mathieu Basille
Oases of the future? Evaluating springs as potential hydrologic refugia in drying climates 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 hydrologic refugia from future climate change is...
Authors
Jennifer M. Cartwright, Kathleen A. Dwire, Zach Freed, Samantha J. Hammer, Blair McLaughlin, Louise W. Misztal, Edward J. Schenk, John R. Spencer, Abraham E. Springer, Lawrence E. Stevens
Combining physical and species‐based approaches improves refugia identification 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 of physical and topographic features...
Authors
Julia Michalak, Diana Stralberg, Jennifer M. Cartwright, Joshua J. Lawler
Disturbance refugia within mosaics of forest fire, drought, and insect outbreaks 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 ecosystems have focused primarily on fire...
Authors
Meg A. Krawchuk, Garrett Meigs, Jennifer M. Cartwright, Jonathan D. Coop, Raymond J. Davis, Andres Holz, Crystal A. Kolden, Arjan J.H. Meddens
Trends in oyster populations in the northeastern Gulf of Mexico: An assessment of river discharge and fishing effects over time and space Trends in oyster populations in the northeastern Gulf of Mexico: An assessment of river discharge and fishing effects over time and space
Within the Big Bend region of the northeastern Gulf of Mexico, one of the least developed coastlines in the continental USA, intertidal and subtidal populations of eastern oyster Crassostrea virginica (hereafter referred to as “oyster”) are a critical ecosystem and important economic constituent. We assessed trends in intertidal oyster populations, river discharge, and commercial fishing...
Authors
J. F Moore, W. E Pine, P. C Frederick, Sarah Becker, Marcos Moreno, Michael Dodrill, Matthew Boone, L Sturmer, Simeon Yurek
Methods of collection and quality assessment of arsenic data in well-water supplies in Maine, 2001–2 and 2006–7 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 and 2006–7. The data collected provide...
Authors
Charles W. Culbertson, James M. Caldwell, Luther Schalk, Deana Manassaram, Lorraine C. Backer, Andrew E. Smith
Scaling responses of leaf nutrient stoichiometry to the lakeshore flooding duration gradient across different organizational levels 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 through affecting environment factors (e...
Authors
Yasong Chen, Camille Stagg, Yongjiu Cai, Xiaotao Lü, Xiaolong Wang, Ruichang Shen, Zhichun Lan
A tropical cyclone-induced ecological regime shift: Mangrove forest conversion to mudflat in Everglades National Park (Florida, USA) 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 transformations (i.e., ecological regime...
Authors
Michael Osland, Laura Feher, Gordon Anderson, William Vervaeke, Ken Krauss, Kevin R.T. Whelan, Karen S. Balentine, G. Tiling-Range, Thomas J. Smith, Donald Cahoon
Developmental ecomorphology of the epibranchial organ of the silver carp, Hypophthalmichthys molitrix 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 and in so doing occupy increased niche...
Authors
Karly E. Cohen, Amy E. George, Duane Chapman, John H. Chick, L. Patricia Hernandez