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Small forested watershed weathers effects of climate change better than a nearby urban watershed in Northern Virginia, USA
South Fork Quantico Creek (SFQ; 19.8 square kilometre (km2), forested) and Fourmile Run (4MR; 32.4-km2, urban) are small watersheds in northern Virginia, United States. Precipitation and streamflow data for both watersheds were examined from water year (WY) 1952 through 2022. Temporal changes in hydrologic metrics were identified by calculating trends in annual precipitation, annual peak flow, mea
Authors
Aaron J. Porter, Karen C Rice
Integrative phylogenetic, phylogeographic and morphological characterisation of the Unio crassus species complex reveals cryptic diversity with important conservation implications
The global decline of freshwater mussels and their crucial ecological services highlight the need to understand their phylogeny, phylogeography and patterns of genetic diversity to guide conservation efforts. Such knowledge is urgently needed for Unio crassus, a highly imperilled species originally widespread throughout Europe and southwest Asia. Recent studies have resurrected several species fro
Authors
Manuel Lopes-Lima, Juergen Geist, Sarah Egg, Luboš Beran, Ani Bikashvili, Bert Van Bocxlaer, Arthur E. Bogan, Ivan N. Bolotov, O. A. Chelpanovskaya, Karel Douda, Vasco Fernandes, André Gomes-dos-Santos, Duarte V. Gonçalves, Mustafa E. Gürlek, Nathan Johnson, Ioannis Karaouzas, Ümit Kebapçı, Alexander V. Kondakov, Ralph Kuehn, Jasna Lajtner, Levan Mumladze, Karl-Otto Nagel, Eike Neubert, Martin Österling, John M. Pfeiffer, Vincent Prié, Nicoletta Riccardi, Jerzy Sell, Lea D. Schneider, Spase Shumka, Ioan Sirbu, Grita Skujienė, Chase H. Smith, Ronaldo Sousa, Katharina Stöckl, Jouni Taskinen, Amílcar Teixeira, Milcho Todorov, Teodora Trichkova, Maria Urbanska, Santtu Välilä, Simone Varandas, Joana Veríssimo, Ilya V. Vikhrev, G. Woschitz, Katarzyna Zając, Tadeusz Zając, David T. Zanatta, Alexandra Zieritz, Stamatis Zogaris, Elsa Froufe
Rising water temperature in rivers: Ecological impacts and future resilience
Rising water temperatures in rivers due to climate change are already having observable impacts on river ecosystems. Warming water has both direct and indirect impacts on aquatic life, and further aggravates pervasive issues such as eutrophication, pollution, and the spread of disease. Animals can survive higher temperatures through physiological and/or genetic acclimation, behavioral and phenolog
Authors
Matthew F. Johnson, Lindsey K. Albertson, Adam C. Algar, Stephen J. Dugdale, Patrick Edwards, Judy England, Christopher Gibbins, So Kazama, Daisuke Komori, Andrew Maccoll, Eric Arthur Scholl, Robert Wilby, Fabio de Oliveira Roque, Paul F. Wood
Writing SMART objectives for natural resource and environmental management
In natural resource and environmental management, well-written objectives are critical for effective decision-making and the achievement of desired outcomes. This article aims to improve practitioners' ability to identify and write SMART (Specific, Measurable, Achievable, Relevant, Time-bound) objectives for natural resource and environmental management.We differentiate between research and manage
Authors
Caleb A. Aldridge, Michael E. Colvin
Potential use of poultry farms by wild waterfowl in California's Central Valley varies across space, times of day, and species: implications for influenza transmission risk
Interactions between wildlife and livestock can lead to cross-species disease transmission, which incurs economic costs and threatens wildlife conservation. Wild waterfowl are natural hosts of avian influenza viruses (AIVs), are often abundant near poultry farms, and have been linked to outbreaks of AIVs in poultry. Interspecific and seasonal variation in waterfowl movement and habitat use means t
Authors
Claire S. Teitelbaum, Michael L. Casazza, Cory T. Overton, Jeffery D. Sullivan, Elliott Matchett, Fiona McDuie, Austen Lorenz, Josh T. Ackerman, Susan E. W. De La Cruz, Diann Prosser
Exploring landscape and geologic controls on spatial patterning of streambank groundwater discharge in a mixed land use watershed
Preferential groundwater discharge features along stream corridors are ecologically important at local and stream network scales, yet we lack quantification of the multiscale controls on the spatial patterning of groundwater discharge. Here we identify physical attributes that best explain variation in the presence and lateral extent of preferential groundwater discharges along two 5th order strea
Authors
Kevin E. Jackson, Eric M. Moore, Ashley M. Helton, Adam B. Haynes, Janet R. Barclay, Martin Briggs
Prokaryotic microbial ecology as an ecosurveillance tool for eukaryotic pathogen colonisation: Meiothermus and Naegleria fowleri
Naegleria fowleri has been detected in drinking water distribution systems (DWDS) in Australia, Pakistan and the United States and is the causative agent of the highly fatal disease primary amoebic meningoencephalitis. Previous small scale field studies have shown that Meiothermus may be a potential biomarker for N. fowleri. However, correlations between predictive biomarkers in small sample sizes
Authors
Natalia Malinowski, Matthew J. Morgan, Jason Wylie, Tom Walsh, Sergio Domingos, Suzanne Metcalfe, Anna H. Kaksonen, Elliott Barnhart, Rebecca C. Mueller, Brent M. Peyton, Geoffrey J. Puzon
Extent and duration of cold-water areas associated with side channels and tributaries of the lower Yakima River, Washington, September 2018–20
Previous work on the lower Yakima River, Washington (downstream from Union Gap), has identified several cold-water areas that could be thermal refuges for migrating salmonids. These cold-water areas are characterized by small tributaries that are typically cooler than the main-stem river during summer months (June–August). Twenty-seven temperature sensors were deployed along the lower 90 miles of
Authors
Richard W. Sheibley, Marcella Appel, Rachel Little, James R. Foreman
A comprehensive assessment of submarine landslides and mass wasting processes offshore southern California
It is critical to characterize submarine landslide hazards near dense coastal populations, especially in areas with active faults, which can trigger slope failure, subsequent tsunamis, and damage seabed infrastructure during earthquake shaking. Offshore southern California, numerous marine geophysical surveys have been conducted over the past decade, and high-resolution bathymetric and subsurface
Authors
M. Walton, James E. Conrad, Antoinette Gabrielle Papesh, Daniel S. Brothers, Jared W. Kluesner, Mary McGann, Peter Dartnell
Streamflow, base flow, and precipitation trends and simulated effects of Rush Springs aquifer groundwater withdrawals on base flows upgradient from Fort Cobb Reservoir, western Oklahoma
To better understand the relation between groundwater use in the Rush Springs aquifer and inflows to the Fort Cobb Reservoir, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation, used a previously published numerical groundwater-flow model and historical streamflow records to evaluate four scenarios to investigate how changing groundwater withdrawals could affect base flows i
Authors
A.R. Trevisan, L.G. Labriola, J.H. Ellis
Molecular sexing of birds using quantitative PCR (qPCR) of sex-linked genes and logistic regression models
The ability to sex individuals is an important component of many behavioural and ecological investigations and provides information for demographic models used in conservation and species management. However, many birds are difficult to sex using morphological characters or traditional molecular sexing methods. In this study, we developed probabilistic models for sexing birds using quantitative PC
Authors
Eleni Leto Petrou, Laura Celeste Scott, Cherie Marie Mckeeman, Andrew M. Ramey
Low flows from drought and water use reduced total dissolved solids fluxes in the Lower Colorado River Basin between 1976 to 2008
Study area:We evaluated the Virgin, Verde, Salt, and Gila Rivers in the Lower Colorado River Basin. The watersheds have extents in Arizona, Utah, New Mexico, US and Sonora, MX.Study focus:We calculated trends in total dissolved solids (TDS) concentrations and fluxes with the Weighted Regressions on Time, Discharge and Season model. The modeling framework leverages daily streamflow and discrete wat
Authors
Annie L. Putman, Hannah Erin Mcilwain, Christine Rumsey, Thomas M. Marston