Ecosystems

Publications

Filter Total Items: 38,587
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Year Published: 2021

Quantifying Lake Ontario coregonine habitat use dynamic’s across space and time to inform assessment and restoration

No abstract available.

Weidel, Brian C.; Brown, Taylor; Connerton, Michael; Holden, Jeremy; Gorsky, Dimitry

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Year Published: 2021

Sampling design workflows and tools to support adaptive monitoring and management

On the Ground• Adaptive land management requires monitoring of resource conditions, which requires choices about where and when to monitor a landscape.• Designing a sampling design for a monitoring program can be broken down in to eight steps: identifying questions, defining objectives, selecting reporting units, deciding data collection methods,...

Stauffer, Nelson G.; Duniway, Michael C.; Karl, Jason W.; Nauman, Travis W.

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Year Published: 2021

Optimization of salt marsh management at the Rachel Carson National Wildlife Refuge, Maine, through use of structured decision making

Structured decision making is a systematic, transparent process for improving the quality of complex decisions by identifying measurable management objectives and feasible management actions; predicting the potential consequences of management actions relative to the stated objectives; and selecting a course of action that maximizes the total...

Neckles, Hilary A.; Lyons, James E.; Nagel, Jessica L.; Adamowicz, Susan C.; Mikula, Toni; O'Brien, Kathleen M.; Benvenuti, Bri; Kleinert, Ryan
Neckles, H.A., Lyons, J.E., Nagel, J.L., Adamowicz, S.C., Mikula, T., O’Brien, K.M., Benvenuti, B., and Kleinert, R., 2021, Optimization of salt marsh management at the Rachel Carson National Wildlife Refuge, Maine, through use of structured decision making: U.S. Geological Survey Open-File Report 2021–1080, 35 p., https://doi.org/10.3133/ofr20211080.

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Year Published: 2021

Schistosome infection in Senegal is associated with different spatial extents of risk and ecological drivers for Schistosoma haematobium and S. mansoni

Schistosome parasites infect more than 200 million people annually, mostly in sub-Saharan Africa, where people may be co-infected with more than one species of the parasite. Infection risk for any single species is determined, in part, by the distribution of its obligate intermediate host snail. As the World Health Organization reprioritizes snail...

Jones, Isabel J.; Sokolow, Susanne H.; Chamberlin, Andrew J; Lund, Andrea J; Jouanard, Nicolas; Bandagny, Lydie; Ndione, Raphaël; Senghor, Simon; Schacht, Anne-Marie; Riveau, Gilles; Hopkins, Skylar R.; Rohr, Jason R.; Remais, Justin V.; Lafferty, Kevin D.; Kuris, Armand M.; Wood, Chelsea L.; De Leo, Giulio A.

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Year Published: 2021

Shifting correlations among multiple aspects of weather complicate predicting future demography of a threatened species

Most studies of the ecological effects of climate change consider only a limited number of weather drivers that could affect populations, though we know that multiple weather drivers can simultaneously affect population growth rate. Multiple drivers could simultaneously increase/decrease one vital rate, or one may increase a vital rate while...

Louthan, Allison M; Walters, Jeffrey R.; Terando, Adam; Garcia, Victoria; Morris, William F

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Year Published: 2021

Culverts delay upstream and downstream migrations of river herring (Alosa spp.)

Alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) are iteroparous anadromous fish found throughout the East Coast of North America. The phenology of anadromous fish migrations is important for fitness, and the duration of spawning migrations has been compressed in recent years in response to climate change. Anthropogenic...

Alcott, Derrick; Goerig, Elsa; Castro-Santos, Theodore R.

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Year Published: 2021

miR133b microinjection during early development targets transcripts of sardiomyocyte ion channels and induces oil-like cardiotoxicity in zebrafish (Danio rerio) embryos

Previous studies have shown that altered expression of a family of small noncoding RNAs (microRNAs, or miRs) regulates the expression of downstream mRNAs and is associated with diseases and developmental disorders. miR133b is highly expressed in mammalian cardiac and skeletal muscle, and aberrant expression is associated with cardiac disorders and...

Greer, Justin Blaine; Magnuson, Jason T.; McGruer, Victoria; Qian, Le; Dasgupta, Subham; Volz, David C.; Schlenk, Daniel

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Year Published: 2021

Survival and spawning success of American shad (Alosa sapidissima) in varying temperatures and levels of glochidia infection

Temperature fluctuations and climate change impacts may substantially affect spawning success of fish, especially migratory species with a limited spawning window. Factors affecting American shad (Alosa sapidissima) spawning success and survival were investigated at different temperatures and periods (peak- and late-spawning periods) during the...

Bayse, Shannon M; Regish, Amy M.; McCormick, Stephen D.

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Year Published: 2021

Staggered-entry analysis of breeding phenology and occupancy dynamics of Arizona toads from historically occupied habitats of New Mexico, USA

For species with variable phenology, it is often challenging to produce reliable estimates of population dynamics or changes in occupancy. The Arizona Toad (Anaxyrus microscaphus) is a southwestern USA endemic that has been petitioned for legal protection, but status assessments are limited by a lack of information on population trends. Also,...

Forzley, MJ; Ryan, Mason J.; Latella, IM; Giermakowski, JT; Muths, Erin L.; Sigafus, Brent H.; Hossack, Blake R.

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Year Published: 2021

Effects of variable-density thinning on non-native understory plants in coniferous forests of the Pacific Northwest

Old-growth forests serve as critical habitat for many sensitive species, but management practices have diminished their prevalence, and former regions of old-growth are now dominated by second-growth stands lacking the structural heterogeneity, diversity, and species richness that these older forests possess. In western Washington state in...

Bekris, Yianna; Prevey, Janet; Brodie, Leslie C.; Harrington, Connie

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Year Published: 2021

Economic assessment of surface water in the Harney Basin, Oregon

Executive SummaryThe Harney Basin is a closed river basin in southeastern Oregon. Surface water in the basin is used for a variety of social, economic, and ecological benefits. While some surface water uses compete with one another, others are complementary or jointly produce multiple beneficial outcomes. The objective of this study is to conduct...

Bair, Lucas S.; Flyr, Matthew; Huber, Christopher
Bair, L.S., Flyr, M., and Huber, C., 2021, Economic assessment of surface water in the Harney Basin, Oregon: U.S. Geological Survey Open-File Report 2021-1087, 43 p., https://doi.org/10.3133/ofr20211087.

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Year Published: 2021

Survival and abundance of polar bears in Alaska’s Beaufort Sea, 2001–2016

The Arctic Ocean is undergoing rapid transformation toward a seasonally ice-free ecosystem. As ice-adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey base driven by food-web response to climate warming. Knowledge of polar bear response to environmental change is...

Bromaghin, Jeffrey F.; Douglas, David C.; Durner, George M.; Simac, Kristin S.; Atwood, Todd C.