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Year Published: 2019

Intensive sampling reveals underreported use of great-river tributaries by large-river fishes in Missouri

Large tributaries may help sustain large-river fish populations by mitigating fish-habitat losses within the highly modified great rivers of the Mississippi River basin. These tributaries are likely most beneficial for fish species specializing on non-degraded large-river habitat for some portion of their life histories. Few great-river...

Dunn, Corey G.; Brooke, Brandon L.; Hrabik, Robert A.; Paukert, Craig P.

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Year Published: 2019

Characterizing residence patterns of North Atlantic right whales in the southeastern U.S. with a multistate open robust design model

Effective conservation of endangered North Atlantic right whales (Eubalaena glacialis) requires information about their spatio-temporal distribution. Understanding temporal distribution is particularly important, because a portion of the population migrates between high latitude summer feeding grounds off the northeastern U.S. and Canadian...

Krystan, A.M.; Gowan, T.A.; Kendall, William L.; Martin, Julien; Ortega-Ortiz, J.G.; Jackson, K.B.; Knowlton, A.R.; Naessig, P.; Zani, M.; Schulte, D.W.; Taylor, C.R.

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Year Published: 2019

Modeling golden eagle‐vehicle collisions to design mitigation strategies

The incidental take of golden eagles (Aquila chrysaetos) as a result of wind energy development requires some form of compensatory mitigation. Although several options have been proposed, only one has been formerly accepted and implemented, and the lack of options can limit the permit process for wind facilities. We developed a model to estimate...

Lonsdorf, Eric V.; Sanders-Reed, Carol A.; Boal, Clint W.; Allison, Taber

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Year Published: 2019

Landscape structure and temporal dynamic effects on Wintering Mallard abundance and distributions in the Mississippi alluvial valley

Context Management of wintering waterfowl in North America requires adaptability because constant landscape and environmental change challenges existing management strategies regarding waterfowl habitat use at large spatial scales. Migratory waterfowl including mallards (Anas platyrhynchos) use the lower Mississippi Alluvial Valley (MAV) for...

Herbert, John A.; Chakraborty, Avishek; Naylor, Luke W.; Beattty, William S.; Krementz, David G.

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Year Published: 2019

Capture versus tagging impacts on chum salmon freshwater spawning migration travel times

The spawning migration travel times of chum salmon, Oncorhynchus keta (Walbaum), fitted with gastrically implanted radio tags vs external spaghetti tags were tested for a short [≈60 river km (rkm)] and long migration route (≈730 rkm) on the Koyukuk River, Alaska, USA. Using a novel application of statistical arrival curve models to infer travel...

Sethi, Suresh

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Year Published: 2019

Optimal treatment allocations in space and time for online control of anemerging infectious disease

A key component in controlling the spread of an epidemic is deciding where, when and to whom to apply an intervention. We develop a framework for using data to inform these decisions in realtime. We formalize a treatment allocation strategy as a sequence of functions, one per treatment period, that map up‐to‐date information on the spread of an...

Laber, Eric B.; Meyer, Nick J.; Reich, Brian J.; Pacifici, Krishna; Collazo, Jaime A.; Drake, John M.

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Year Published: 2019

Predicting species-habitat relationships: Does body size matter?

Context. Allometric scaling laws are foundational to structuring processes from cellular to ecosystem levels. The idea that allometric relationships underlie species characteristic selection scales, the spatial scales at which species respond to landscape features, has recently been investigated, however, supporting empirical evidence is scarce....

Stuber, E.F.; Gruber, L.; Fontaine, Joseph J.

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Year Published: 2019

Effects of landscape characteristics on annual survival of Lesser Prairie-Chickens

Agriculture and development have caused landscape change throughout the southwestern Great Plains in the range of the lesser prairie-chicken (Tympanuchus pallidicinctus). Landscape alteration within the lesser prairie-chicken range may contribute to range contraction and population losses through decreases in survival rates. Our objectives were to...

Robinson, Samantha G.; Haukos, David A.; Plumb, Reid T.; Kraft, John D.; Sullins, Daniel S.; Lautenbach, Joseph M.; Lautenbach, Jonathan D.; Sandercock, Brett K.; Christian A. Hagen; Bartuszevige, Anne M.; Rice, Mindy B.

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Year Published: 2019

Historical sediment mercury deposition for select South Dakota, USA, lakes: implications for watershed transport and flooding

PurposeSelect South Dakota, USA water bodies, including both natural lakes and man-made impoundments, were sampled and analyzed to assess mercury (Hg) dynamics and historical patterns of total Hg deposition.Materials and methodsSediment cores were collected from seven South Dakota lakes. Mercury concentrations and flux profiles were determined...

Squillace, Maria K.; Sieverding, Heidi L.; Betemariam, Hailemelekot H.; Urban, Noel R.; Penn, Michael R.; DeSutter, Thomas M.; Chipps, Steven R.; Stone, James J.

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Year Published: 2019

Are waterfowl food resources limited during spring migration? A bioenergetic assessment of playas in Nebraska's rainwater basin

Accurate bioenergetic carrying capacity estimates of wetlands on public and private lands, as well as those managed for crop production are important for managing waterfowl populations and habitats. Given the importance of wetlands in the Rainwater Basin region of Nebraska for spring migrating waterfowl, we quantified and compared seed and...

Schepker, Travis J.; LaGrange, Ted; Webb, Elisabeth B.

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Year Published: 2019

Synchrony — An emergent property of recreational fisheries

Recreational fisheries are traditionally managed at local scales, but more effective management could be achieved using a cross‐scale approach. To do this, we must first understand how local processes scale up to influence landscape patterns between anglers and resources. We highlight how population‐based synchrony methods, used in conjunction...

Pope, Kevin L.

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Year Published: 2019

Influences of spawning timing, water temperature, and climatic warming on early life history phenology in western Alaska sockeye salmon

We applied an empirical model to predict hatching and emergence timing for 25 western Alaska sockeye salmon (Oncorhynchus nerka) populations in four lake-nursery systems to explore current patterns and potential responses of early life history phenology to warming water temperatures. Given experienced temperature regimes during development, we...

Sparks, Morgan M.; Falke, Jeffrey A.; Quinn, Thomas P.; Adkison, Milo D.; Schindler, Daniel E.; Bartz, Krista K.; Young, Daniel B.; Westley, Peter A. H.