Ligand activation of the aryl hydrocarbon (AHR) has profound effects upon the immunological status of the gastrointestinal tract, establishing and maintaining signaling networks, which facilitate host-microbe homeostasis at the mucosal interface. However, the identity of the ligand(s) responsible for such AHR-mediated activation within the gut remains to be firmly established....
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microbiota-derived indoles’
TroyD. Hubbard, Iain A. Murray, William H. Bisson, Tejas S. Lahoti, Krishne
Ligand activation of the aryl hydrocarbon (AHR) has profound effects upon the immunological status of the gastrointestinal tract, establishing and maintaining signaling networks, which facilitate host-microbe homeostasis at the mucosal interface. However, the identity of the ligand(s) responsible for such AHR-mediated activation within the gut remains to be firmly established....
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indoles
Hubbard, T. D., Murray, I. A., Bisson, W. H., Lahoti, T. S., Gowda, K., Amin, S.
G
Winter climate is expected to change under future climate scenarios, yet the majority of winter ecology research is focused in cold-climate ecosystems. In many temperate systems, it is unclear how winter climate relates to biotic responses during the growing season. The objective of this study was to examine how winter...
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Zak r. ratajcZak,2 troy w. ocheLtree,3 katya a. hafich,4 aMber c. churchiLL,4,5
Sarah j. k. frey,6
Winter climate is expected to change under future climate scenarios, yet the majority of winter ecology research is focused in cold-climate ecosystems. In many temperate systems, it is unclear how winter climate relates to biotic responses during the growing season. The objective of this study was to examine how winter...
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Laura M. Ladwig, Zak R. Ratajczak, Troy W. Ocheltree
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
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USA
A Argerich
1
,
S L Johnson
2
, S D Sebestyen
3
, C C Rhoades
4
, E Greathouse
1
, J D
The terrestrial biosphere sequesters up to a
third of annual anthropogenic carbon dioxide emissions,
offsetting a substantial portion of greenhouse
gas forcing of the climate system. Although a number
of factors are responsible for this terrestrial carbon
sink, atmospheric nitrogen deposition contributes by
enhancing tree productivity and promoting carbon
storage...
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and D). Potential cellulase activity
was measured as glucose release from carboxymethyl-cellulase
To examine whether stream nitrogen concentrations in forested reference catchments have
changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr
of data collected from 22 catchments at seven USDA Forest Service Experimental Forests.
Trends in stream nitrogen presented high spatial variability both...
Full Text:
). Most
of the ammonium values were below detection at Fernow
and Hubbard Brook (figure 1(d)). Catchments
Ecosystems are shaped by processes occurring and interacting over multiple
temporal and spatial scales. Theory suggests such complexity can be simplified by focusing on
processes sharing the same scale as the pattern of interest. This scale-dependent approach to
studying communities has been challenged by multiscale meta-ecosystem theory, which
recognizes that...
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in
rocky intertidal habitats
Menge, B. A., Gouhier, T. C., Hacker, S. D., Chan, F., & Nielsen, K. J
In the future, Earth will be warmer, precipitation events will be more extreme, global mean sea level will rise, and many arid and semiarid regions will be drier. Human modifications of landscapes will also occur at an accelerated rate as developed areas increase in size and population density. We now...
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surface to future climatic and land
use changes: A review of methods and research needs
Pelletier, J. D