Ecosystems

Publications

Filter Total Items: 32,407
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Year Published: 2020

Movements and habitat use of loons for assessment of conservation buffer zones in the Arctic Coastal Plain of northern Alaska

Oil and gas development in the Arctic Coastal Plain, Alaska, may pose threats to wildlife. Management guidelines within the National Petroleum Reserve-Alaska dictate buffer zones for coastal wildlife habitat and for breeding and foraging sites of yellow-billed loons (YBLOs; Gavia adamsii), a species of conservation concern. However, few data...

Poessel, Sharon; Uher-Koch, Brian D.; Pearce, John M.; Schmutz, Joel A.; Katzner, Todd E.; Douglas, David C.; von Biela, Vanessa R.; Harrison, Autumn-Lynne

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Year Published: 2020

Monitoring chemical contaminants in the Gulf of Maine, using sediments and mussels (Mytilus edulis): An evaluation

The objective of this paper is to determine whether contaminant data on mussels and sediments can be used interchangeably, or not, when assessing the degree of anthropogenic contamination of a water body. To obtain adequate coverage of the entire Gulf of Maine, Bay of Fundy sediment samples were collected, analyzed and combined with similar data...

Elskus, Adria; LeBlanc, Lawrence A; Latimer, James S; Page, David; Harding, Gareth; Wells, Peter G

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Year Published: 2020

Black oystercatcher (Haematopus bachmani) population size, use of marine reserve complexes, and spatial distribution in Oregon

The Black Oystercatcher is a large shorebird found along the west coast of North America. Because of their small global population size, low reproductive rate, and dependence on rocky intertidal habitats, they are considered a “species of high conservation concern” and may act as an indicator of intertidal ecosystem health. In 2015, the Audubon...

Liebezeit, Joe; O'Connor, Amelia; Lyons, James; Shannon, Courtney; Stephensen, Shawn; Elliott-Smith, Elise

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Year Published: 2020

Does Lake Erie still have sufficient oxythermal habitat for cisco Coregonus artedi?

In Lake Erie, cisco Coregonus artedi once supported one of the most valuable freshwater fisheries on earth, yet overfishing caused their eventual extirpation from the lake. With warming lake temperatures, some have questioned whether Lake Erie still contains suitable oxythermal conditions for cisco. Using published oxythermal thresholds for cisco...

Schmitt, Joseph; Christoper S. Vandergoot; O'Malley, Brian P.; Kraus, Richard

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Year Published: 2020

Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods

Carbon stock trends of the knees of Taxodium distichum likely vary across climate gradients of the southeastern United States and contribute an unknown quantity of “teal” carbon to inland freshwater wetlands. Knee metrics (e.g., density, height, biomass) were measured in mixed T. distichum swamps across the Mississippi River Alluvial Valley (MRAV...

Middleton, Beth A.

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Year Published: 2020

Waterfowl occurrence and residence time as indicators of H5 and H7 avian influenza in North American Poultry

Avian influenza (AI) affects wild aquatic birds and poses hazards to human health, food security, and wildlife conservation globally. Accordingly, there is a recognized need for new methods and tools to help quantify the dynamic interaction between wild bird hosts and commercial poultry. Using satellite-marked waterfowl, we applied Bayesian joint...

Humphreys, John M.; Ramey, Andy; Douglas, David C.; Mullinax, Jennifer M.; Soos, Catherine; Link, Paul T.; Walther, Patrick; Prosser, Diann J.

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Year Published: 2020

A review of Cattail (Typha) invasion in North American wetlands

OverviewCattail (Typha) is an iconic emergent wetland plant found worldwide. By producing an abundance of wind-dispersed seeds, cattail can colonize wetlands across great distances, and its rapid growth rate, large size, and aggressive expansion result in dense stands in a variety of aquatic ecosystems such as marshes, ponds, lakes, and riparian...

Bansal, Sheel; Tangen, Brian; Lishawa, Shane; Newman, Sue; Wilcox, Douglas
Bansal, S., Tangen, B., Lishawa, S., Newman, S., and Wilcox, D., 2020, A review of Cattail (Typha) invasion in North American wetlands: U.S. Geological Survey Fact Sheet 2019-3076, 6 p., https://doi.org/10.3133/fs20193076.

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Year Published: 2020

Spatial and temporal trends in Potomac River fish abundance linked to species traits

Analysis of species abundance trends can inform an understanding of the underlying mechanisms. We evaluated spatial and temporal trends in fish species abundance in the non-tidal Potomac River (USA) from a dataset comprising 2841 seine-hauls with > 250,000 individual fish records across 10 sites and 43 years (1975-2017). The dataset contained...

Hitt, Nathaniel P.; Rogers, Karli; Kelly, Zachary; Henesy, Josh; Mullican, John E.

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Year Published: 2020

Timing, frequency, and duration of incubation recesses in dabbling ducks

Nest attendance is an important determinant of avian reproductive success, and identifying factors that influence the frequency and duration of incubation recesses furthers our understanding of how incubating birds balance their needs with those of their offspring. We characterized the frequency and timing (start time, end time, and duration) of...

Croston, Rebecca; Hartman, C. Alex; Herzog, Mark P.; Casazza, Michael L.; Feldheim, Cliff L.; Ackerman, Joshua T.
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Year Published: 2020

Forest vegetation change and its impacts on soil water following 47 years of managed wildfire

Managed wildfire is an increasingly relevant management option to restore variability in vegetation structure within fire-suppressed montane forests in western North America. Managed wildfire often reduces tree cover and density, potentially leading to increases in soil moisture availability, water storage in soils and groundwater, and streamflow...

Stevens, Jens; Boisramé, Gabrielle F. S.; Rakhmatulina, Ekaterina; Thompson, Sally E.; Collins, Brandon M.; Stephens, Scott L.

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Year Published: 2020

Genes in space: What Mojave desert tortoise genetics can tell us about landscape connectivity

Habitat loss and fragmentation in the Mojave Desert have been increasing, which can create barriers to movement and gene flow leading to decreased populations of native species. Disturbance and degradation of Mojave desert tortoise habitat includes linear features (e.g. highways, railways, and a network of dirt roads), urbanized areas, and their...

Dutcher, Kirsten E; Vandergast, Amy G.; Esque, Todd C.; Mitelberg, Anna; Matocq, Marjorie D; Heaton, Jill S.; Nussear, Ken E

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Year Published: 2020

Sensitivity of warm water fishes and rainbow trout to selected contaminants

Guidelines for developing water quality standards allow U.S. states to exclude toxicity data for the family Salmonidae (trout and salmon) when deriving guidelines for warm-water habitats. This practice reflects the belief that standards based on salmonid data may be overprotective of toxic effects on other fish taxa. In acute tests with six...

Besser, John M.; Dorman, Rebecca A.; Ivey, Chris D.; Cleveland, Danielle; Steevens, Jeffery