Ecosystems

Publications

Filter Total Items: 31,043
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Year Published: 2019

Assessment of polycyclic aromatic hydrocarbon concentrations in southern Lake Powell, Glen Canyon National Recreation Area, Arizona and Utah, 2016–17

Polycyclic aromatic hydrocarbon contamination related to boat use is one of the most important water-quality issues affecting Lake Powell. High concentrations of polycyclic aromatic hydrocarbons in water are common around marinas and other areas with extensive motorboat activity because of releases of uncombusted or partially combusted oil and...

Coes, Alissa L.; Paretti, Nicholas V.; Alvarez, David A.; Macy, Jamie P.
Coes, A.L., Paretti, N.V., Alvarez, D.A., and Macy, J.P., 2019, Assessment of polycyclic aromatic hydrocarbon concentrations in southern Lake Powell, Glen Canyon National Recreation Area, Arizona and Utah, 2016–17: U.S. Geological Survey Scientific Investigations Report 2019–5065, 26 p., https://doi.org/10.3133/sir20195065.

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Year Published: 2019

Wildland fire science at the U.S. Geological Survey—supporting wildland fire and land management across the United States postcard

The U.S. Geological Survey’s Wildland Fire Science Program produces information to identify the causes of wildfires, understand the impacts and benefits of both wildfires and prescribed fires, and help prevent and manage larger, catastrophic events. USGS fire scientists provide information and develop tools that are widely used by stakeholders to...

Steblein, Paul F.; Miller, Mark P.; Soileau, Suzanna C.
Attribution: Ecosystems
Steblein, P.F., Miller, M.P., and Soileau, S.C., 2019, Wildland fire science at the U.S. Geological Survey—Supporting wildland fire and land management across the United States: U.S. Geological Survey General Information Product 190 [postcard], 2 p., https://doi.org/10.3133/gip190.

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Year Published: 2019

Biocrust science and global change

Global environmental changes such as climate and land‐use change affect ecosystems worldwide, and this New Phytologist Virtual Issue brings together fundamental research questions and novel approaches associated with the study of biological soil crusts in the context of such shifts. In a changing world, organisms can display a limited set of...

Reed, Sasha C.; Delgado-Baquerizo, Manuel; Ferrenberg, Scott

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Year Published: 2019

Environmental DNA assays for invasive populations of the Black Carp, Mylopharyngodon piceus, in North America

The Black Carp, Mylopharyngodon piceus, is an increasingly widespread invasive species in North America that threatens freshwater mussel populations. We developed four qPCR assays for detecting environmental DNA (eDNA) from these Black Carp populations. Assays were designed to target four mitochondrial DNA loci and were based on 34 complete...

Guan, Xin; Monroe, E.M.; Bockrath, K.D.; Mize, Erica L.; Rees, C.B.; Lindsay, Denise L.; Baerwaldt, Kelly L.; Nico, Leo; Lance, Richard F.
Guan, X., Monroe, E.M., Bockrath, K.D., Mize, E.L., Rees, C.B., Lindsay, D.L., Baerwaldt, K.L., Nico, L.G., and Lance, R.F., 2019, Environmental DNA assays for invasive populations of the Black Carp, Mylopharyngodon piceus, in North America: Transactions of the American Fisheries Society, First Published, https://doi.org/10.1002/tafs.10195.

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Year Published: 2019

Diel feeding behavior in a partially migrant Mysis population: A benthic-pelagic comparison

Populations that exhibit partial migration include migrants and non-migrants. For benthic-pelagic organisms that exhibit partial diel vertical migration (PDVM), migrants and non-migrants spend different amounts of time in benthic and pelagic foraging arenas over a diel cycle. For example, mysids exhibit PDVM and can feed on benthic and pelagic...

O'Malley, Brian; Stockwell, Jason D.

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Year Published: 2019

Spatiotemporal variability in energetic condition of alewife and round goby in Lake Michigan

Pelagic-oriented alewife (Alosa pseudoharengus) and benthic-oriented round goby (Neogobius melanostomus) are two important prey fishes in the Laurentian Great Lakes. In 2015, we evaluated their seasonal total energy (TE) across nine Lake Michigan transects. Round goby contained at least 48% more kilojoules of TE than alewife of equal length during...

Bunnell, David; Pothoven, Steven A.; Armenio, Patricia; Eaton, Lauren A.; Warner, David; Elgin, Ashley K.; Burlakova, Lyuba E.; Karatayev, Alexander Y.

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Year Published: 2019

Improving population estimates of threatened spectacled eiders: Correcting aerial counts for visibility bias

Listed as threatened under the Endangered Species Act in 1993, the Spectacled Eider (Somateria fischeri) population in western Alaska has since rebounded, prompting an assessment of their suitability for delisting. This assessment, however, is limited by aerial-based population estimates that are incompletely corrected for unobserved eiders....

Lewis, Tyler; Michael Swaim; Schmutz, Joel A.; Julian Fischer
Lewis TL, Swaim MA, Schmutz JA, Fischer JB (2019) Improving population estimates of threatened spectacled eiders: correcting aerial counts for visibility bias. Endang Species Res 39:191-206. https://doi.org/10.3354/esr00959

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Year Published: 2019

A phylogenomic supertree of birds

It has long been appreciated that analyses of genomic data (e.g., whole genome sequencing or sequence capture) have the potential to reveal the tree of life, but it remains challenging to move from sequence data to a clear understanding of evolutionary history, in part due to the computational challenges of phylogenetic estimation using genome-...

Kimball, Rebecca T; Oliveros, Carl H; Wang, Ning; White, Noor D; Barker, F. Keith; Field, Daniel J; Ksepka, Daniel T; Chesser, Terry; Moyle, Robert G; Braun, Michael J; Brumfield, Robb T; Faircloth, Brant C; Tilston-Smith, Brian; Braun, Edward L

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Year Published: 2019

First examination of diet items consumed by wild-caught black carp (Mylopharyngodon piceus) in the U.S.

Black carp (Mylopharyngodon piceus) were imported to the U.S. in the 1970s to control snails in aquaculture ponds and have since escaped from captivity. The increase in captures of wild fish has raised concerns of risk to native and imperiled unionid mussels given previous literature classified this species a molluscivore. We acquired black carp...

Poulton, Barry C.; Kroboth, Patrick; Aiken, George; Chapman, Duane C.; Bailey, J.; McMurray, Stephen E.; Faiman, John S.

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Year Published: 2019

Safety in numbers: Cost-effective endangered species management for viable populations

We develop a bioeconomic model to identify the cost-effective control of an invasive species (rain-bow trout) to achieve a population viability goal for an endangered species (humpback chub) in the Grand Canyon of the U.S. southwest. The population viability optimization problem is no-toriously difficult to solve due to a probabilistic restriction...

Donovan, Pierce; Bair, Lucas S.; Yackulic, Charles B.; Springborn, Michael R.

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Year Published: 2019

Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18

Executive SummaryThe Pahranagat roundtail chub (Gila robusta jordani; hereinafter “chub”) was federally listed as endangered in 1970 (U.S. Fish and Wildlife Service, 1970). In the decades following the listing, the chub has declined to extremely low numbers (Tuttle and others, 1990; Guadalupe, 2014). Loss of available habitat appears to be one of...

Martin, Barbara A.; Hayes, Brian S.; Harris, Alta C.
Martin, B.A., Hayes, B.S., and Harris, A.C., 2019, Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18: U.S. Geological Survey Open-File Report 2019–1075, 23 p., https://doi.org/10.3133/ofr20191075.

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Year Published: 2019

One Health: A perspective from wildlife and environmental health sectors

Loss of biodiversity, habitat fragmentation and pollution, and subsequent degradation of natural environments threaten the range of ecosystem services that support all life on this planet. These changes, among others, are also driving the emergence of infectious diseases, with negative health outcomes for humans, animals, and...

Sleeman, Jonathan M.; Richgels, Katherine L. D.; White, C. LeAnn; Stephen, C.