Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Joshua N. Collins"'
Publikováno v:
San Francisco Estuary and Watershed Science, Vol 1, Iss 1 (2003)
Present concentrations of mercury in large portions of San Francisco Bay (Bay), the Sacramento-San Joaquin Delta (Delta), and the Sacramento and San Joaquin rivers are high enough to warrant concern for the health of humans and wildlife. Large scale
Externí odkaz:
https://doaj.org/article/df6fcf9e1a78461d84e7db153aa37125
Autor:
John C. Callaway, Michael C. Vasey, Martha Sutula, V. Thomas Parker, A. Elizabeth Fetscher, Joshua N. Collins, Walter G. Nelson
Publikováno v:
Wetlands. 30:833-846
Monitoring wetlands at the ecoregion level provides information beyond the site scale and can inform regional prioritization of management and restoration projects. Our study was a component of the United States Environmental Protection Agency’s 20
Autor:
A. Elizabeth Fetscher, Martha Sutula, Cristina Grosso, Joshua N. Collins, Ross Clark, J. Letitia Grenier, Adam Wiskind, Eric D. Stein
Publikováno v:
Wetlands. 29:648-665
Wetland rapid assessment has become popular in a variety of applications. Because rapid assessments rely on observable field indicators as surrogates for direct measures of condition, they must be validated against independent data. Here we present a
Publikováno v:
Journal of the American Water Resources Association. 42:157-175
Wetland rapid assessment methods (RAMs) can provide a cost effective, scientifically defensible estimate of wetland and riparian condition for use in ambient and project monitoring in resource man- agement and regulatory programs. Those who have chos
Publikováno v:
Journal of Coastal Research. 204:970-979
Friedrichs and Perry (2001) have hypothesized that exogenous sedimentation is a vital part of a feedback system (with tidal height, marsh elevation and local vegetation) that keeps the marsh surface in equilibrium with sea level. This study investiga
Autor:
Mark E. Conrad, Joshua N. Collins, B. Lynn Ingram, Frances Malamud-Roam, Scott Starratt, Roger Byrne
Publikováno v:
Quaternary Research. 55:66-76
Analysis of diatoms, pollen, and the carbon-isotopic composition of a sediment core from a brackish marsh in the northern part of the San Francisco Estuary has provided a paleosalinity record that covers the past 3000 yr. Changes in marsh composition
Autor:
Theodore C. Foin, Robert E. Gill, Joshua N. Collins, Steven D. Culberson, E. Jacqueline Garcia
Publikováno v:
Landscape and Urban Planning. 38:229-243
The California clapper rail ( Rallus longirostris obsoletus ), a Federal- and State-listed endangered marsh bird, has a geographic range restricted to one of the most heavily-urbanized estuaries in the world. The rail population has long been in a st
Publikováno v:
Hydrobiologia. 234:15-24
Fourteen samples of sago pondweed (Potamogeton pectinatus L.) and associated invertebrates were collected every two weeks over a single season of plant growth in a large monospecific pondweed-bed located in Coyote Hills Marsh (Alameda Co., California
Publikováno v:
Davis, Jay A; Yee, Donald; Collins, Joshua N.; Schwarzbach, Steven E.; & Luoma, Samuel N. (2003). Potential for Increased Mercury Accumulation in the Estuary Food Web. San Francisco Estuary and Watershed Science, 1(1). Retrieved from: http://www.escholarship.org/uc/item/9fm1z1zb
San Francisco Estuary and Watershed Science, Vol 1, Iss 1 (2003)
San Francisco Estuary and Watershed Science, Vol 1, Iss 1 (2003)
https://doi.org/10.15447/sfews.2003v1iss1art4 Present concentrations of mercury in large portions of San Francisco Bay (Bay), the Sacramento-San Joaquin Delta (Delta), and the Sacramento and San Joaquin rivers are high enough to warrant concern for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7632aef1bbf33cac306f41c92b504bf
http://www.escholarship.org/uc/item/9fm1z1zb
http://www.escholarship.org/uc/item/9fm1z1zb
Publikováno v:
Estuarine, Coastal and Shelf Science. 20:331-347
Differences in macroinvertebrate community structure and composition were examined from April 1980 to March 1981 in three potholes that had been ditched for mosquito control and three natural (i.e. unditched) potholes, which are located in a San Fran