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Filter Total Items: 177548

Lake trout colonization of artificial reefs: Who’s interested, and how long does it take? Lake trout colonization of artificial reefs: Who’s interested, and how long does it take?

Restoring self-sustaining lake trout (Salvelinus namaycush) populations has been a major management objective for decades across the species’ native range. Reproduction has been observed but recruitment has been limited in many areas of the Laurentian Great Lakes. Reef restoration and construction have been proposed to increase recruitment, leading to the construction of experimental...
Authors
Matthew H. Futia, Tyler Reid Funnell, Ji He, J. Ellen Marsden, Thomas R Binder

Estimating submersed aquatic vegetation biomass using a hierarchical Bayesian model of ordinal measurements and structural zeros Estimating submersed aquatic vegetation biomass using a hierarchical Bayesian model of ordinal measurements and structural zeros

This study explores the prediction of a continuous target variable that is primarily measured as an ordinal outcome. Interest in such prediction may occur given data from double- or two-phase sampling designs, where an auxiliary variable is measured at all sampling units and a target and predictor variable, X, at a subset of those units. This study focuses on the case where X is...
Authors
Julie Sherman, Katie St Clair, Brian R. Gray, Danelle M. Larson

Root biomass and productivity in coastal swamp forests of Louisiana (USA) Root biomass and productivity in coastal swamp forests of Louisiana (USA)

Coastal swamp forests (CSF) occupy approximately 225,000 ha in Southeastern Louisiana (USA), and across a large percentage of this area, CSF are subjected to sediment starvation, salinity intrusion, and chronic submergence. We assessed root biomass and productivity in nine CSF in Louisiana, and found that root biomass ranged from 420.8 g m−2 to 1712.2 g m−2 to a soil depth of 30 cm. Root...
Authors
Ken W. Krauss, Jorge A. Villa, Blair A. Miller, Eric J. Ward, Andrew S. From, Gregory B. Noe

Testing characteristic magnitude distributions in modern PSHA models Testing characteristic magnitude distributions in modern PSHA models

The characteristic magnitude distribution hypothesis predicts a higher rate of large earthquakes than a Gutenberg–Richter extrapolation of the small‐earthquake rate would imply. Characteristic magnitude distributions have been commonly applied to faults in probabilistic seismic hazard analysis (PSHA), and in modern models they can emerge from the way short‐term seismicity constraints are...
Authors
Morgan T. Page, Kevin Ross Milner, Edward H. Field

Accounting for temporal variation and correlation in environmental DNA sampling can improve ecological inferences Accounting for temporal variation and correlation in environmental DNA sampling can improve ecological inferences

Environmental DNA (eDNA) concentration varies through space and time, and measurements collected close together are often correlated. Ignoring this dependence can inflate the rate of incorrect ecological inferences (Type I error rate). Although spatial correlation in eDNA has received considerable attention, temporal correlation has been less well studied. Statistical models and study...
Authors
Ben C. Augustine, Patrick R. Hutchins, Margaret E. Hunter, Christopher M. Merkes, David S. Pilliod, Stephen Frank Spear, Caitlin E. Beaver, Scott D. George, Devin Nicole Jones-Slobodian, Adam J. Sepulveda

Regional characterization of coal resources in the Gulf Coast Coal Region—In support of coal as a potential source for critical minerals and rare earth elements Regional characterization of coal resources in the Gulf Coast Coal Region—In support of coal as a potential source for critical minerals and rare earth elements

There is increasing interest in extracting critical minerals (CM), including rare earth elements (REE), from coals in the United States to address the overreliance on imported REE. The Gulf Coast and the Fort Union regions are the two major lignite-bearing regions within the United States. Recent REE and CM studies of the lignite in these regions have indicated that the coals may be a...
Authors
Peter D. Warwick, Robert C. Reedy, Bridget R. Scanlon

The value of electronic tagging and tracking studies for understanding fish–hypoxia interactions The value of electronic tagging and tracking studies for understanding fish–hypoxia interactions

Objective Hypoxia (i.e., low dissolved oxygen availability) is a natural phenomenon but can also be induced by human activities (e.g., nutrient enrichment from runoff). Given that dissolved oxygen is essential for aquatic life, periods of hypoxia tend to have negative consequences (e.g., sublethal disturbances, mortality) for most fishes. Extensive laboratory research has documented...
Authors
Steven J. Cooke, Robert J. Lennox, Knut Wiik Vollset, Myra Thapar, Claudia Junge, Kim Birnie-Gauvin, Petter Lundberg, Gaute Velle, Lotte S. Dahlmo, Morgan L. Piczak, R. Dean Grubbs, Caleb T. Hasler, Jessica A. Robichaud, Richard Kraus

Modeling localized deer removal strategies for managing chronic wasting disease Modeling localized deer removal strategies for managing chronic wasting disease

We used a published individual-based model to evaluate localized deer removal strategies for managing chronic wasting disease (CWD) in a free-ranging white-tailed deer population in central Michigan, USA. We simulated fine-scale (23.3 km2) deer culling using ring, land parcel-based, and habitat quality-based removal methods. Ring culling consisted of highly concentrated culling in a...
Authors
Noelle E. Thompson, Daniel J. O’Brien, Daniel P. Walsh, Chad M. Stewart, Earl G. Krom, Gary J. Roloff

Ecological transformations of coastal wetlands of the conterminous United States in response to contemporaneous sea-level rise Ecological transformations of coastal wetlands of the conterminous United States in response to contemporaneous sea-level rise

Coastal wetlands are among the most important ecosystems on the planet but are increasingly imperiled by accelerating sea-level rise (SLR). In the past, biogeomorphic feedbacks have allowed coastal wetlands to adjust vertically and persist through periods of accelerated SLR. Recent rates of SLR are faster than any in recent geologic history, making the fate of coastal wetlands highly...
Authors
Justine Annaliese Neville, Katya E. Kovalenko, Gregg A. Snedden, Michael J. Osland, Karen M. Thorne, Laura C. Feher, Michelle C. Moorman, Jena A. Moon, Ken W. Krauss, James B. Grace, Tiffany C. Lane, Colt R. Sanspree, Donald R. Cahoon, Glenn R. Guntenspergen

Climate-adaptive urban planning: Quantitative assessment of drought impacts and practical strategies for climate-resilient urban green spaces Climate-adaptive urban planning: Quantitative assessment of drought impacts and practical strategies for climate-resilient urban green spaces

Urban green spaces (UGSs) are vital for enhancing a city’s resilience and livability; however, their functionality is increasingly jeopardized by drought, particularly in water-scarce regions. This study evaluates drought impact on UGSs in Metropolitan Adelaide, Australia, a representative semi-arid urban system, using satellite-derived Normalized Difference Vegetation Index (NDVI) time...
Authors
Sattar Chavoshi Borujeni, Alfredo Huete, Biswajeet Pradhan, Hamideh Nouri, Neda Abbasi, Pamela L Nagler

PFAS exposure suppresses leaf litter decomposition in a stream ecosystem PFAS exposure suppresses leaf litter decomposition in a stream ecosystem

Decomposition of organic matter is critical to the biogeochemical cycling of carbon and nutrients in all ecosystems. In streams, decomposition can be influenced by anthropogenic impacts, including contaminants. Per- and polyfluoroalkyl substances (PFAS) are resistant to degradation and widespread in freshwater ecosystems, yet little is known about their influence on organic matter...
Authors
Alison M. Zachritz, Abagael N. Pruitt, Therese M. Reisch, Daniele A. Miranda, Brittany G. Perrotta, Laura E. Hubbard, Christopher James Kotalik, Dana W. Kolpin, David M. Walters, Jennifer L. Tank, Gary A. Lamberti
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