Mercury (Hg) is a globally distributed environmental
contaminant with a variety of deleterious effects
in fish, wildlife, and humans. Breeding songbirds may be
useful sentinels for Hg across diverse habitats because they
can be effectively sampled, have well-defined and small
territories, and can integrate pollutant exposure over time
and space....
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of mercury in terrestrial habitats of eastern
North America
Allyson K. Jackson • DavidC. Evers
Mercury (Hg) is a globally distributed environmental
contaminant with a variety of deleterious effects
in fish, wildlife, and humans. Breeding songbirds may be
useful sentinels for Hg across diverse habitats because they
can be effectively sampled, have well-defined and small
territories, and can integrate pollutant exposure over time
and space....
Full Text:
), estuarine wetland (E) or upland forest (U)
c Cont is whether the site has a known point-source
Mercury (Hg) is a globally distributed environmental
contaminant with a variety of deleterious effects
in fish, wildlife, and humans. Breeding songbirds may be
useful sentinels for Hg across diverse habitats because they
can be effectively sampled, have well-defined and small
territories, and can integrate pollutant exposure over time
and space....
Full Text:
), Estuarine wetlands (E), and Upland forests (U)
c Contaminated (CONT) sites have a known history of point
A new functional gene database, FOAM (Functional
Ontology Assignments for Metagenomes), was developed
to screen environmental metagenomic sequence
datasets. FOAM provides a new functional
ontology dedicated to classify gene functions relevant
to environmental microorganisms based on Hidden
Markov Models (HMMs). Sets of aligned protein
sequences (i.e. ‘profiles’) were tailored to...
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Metagenomes): a Hidden
Markov Model (HMM) database with environmental focus
Prestat, E., David, M. M
Early Holocene summer warmth drove dramatic Greenland ice sheet (GIS) retreat. Subsequent
insolation-driven cooling caused GIS margin readvance to late Holocene maxima, from which ice margins
are now retreating. We use ¹⁰Be surface exposure ages from four locations between 69.4°N and 61.2°N to
date when in the early Holocene south...
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extent
Anders E. Carlson1, Kelsey Winsor2, David J. Ullman1, Edward J. Brook1, Dylan H. Rood3,4,
Yarrow
Emerging application areas such as air pollution in megacities, wind energy, urban security, and operation of unmanned aerial vehicles have intensified scientific and societal interest in mountain meteorology. To address scientific needs and help improve the prediction of mountain weather, the U.S. Department of Defense has funded a research effort—the...
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. Felton,
a. graCHev, n. gunawardena, C. Hang, C. m. HoCut, g. HuynH, m. e. Jeglum, d. JenSen,
v
Research in warm-climate biomes has shown
that invasion by symbiotic dinitrogen (N₂)-fixing plants can
transform ecosystems in ways analogous to the transformations
observed as a consequence of anthropogenic, atmospheric
nitrogen (N) deposition: declines in biodiversity, soil
acidification, and alterations to carbon and nutrient cycling,
including increased N losses through nitrate...
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BD,
Körner C
Fig. S1. The global distribution of Alnus and Lupinus (dashed lines indicate
Research in warm-climate biomes has shown
that invasion by symbiotic dinitrogen (N₂)-fixing plants can
transform ecosystems in ways analogous to the transformations
observed as a consequence of anthropogenic, atmospheric
nitrogen (N) deposition: declines in biodiversity, soil
acidification, and alterations to carbon and nutrient cycling,
including increased N losses through nitrate...
Full Text:
·
Borgthor Magnusson · David D. Myrold · Sasha C. Reed · Bjarni D. Sigurdsson ·
Christian Körner
Received