S. Fair results 19
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Temperature, water travel time, and dissolved organic matter structure river microbial communities in a large temperate watershedNARA Subscribed
There is growing evidence that the composition of river microbial communities gradually transitions from terrestrial taxa in headwaters to unique planktonic and biofilm taxa downstream. Yet, little is known about fundamental controls on this community transition across scales in river networks. We hypothesized that community composition is controlled by flow‐weighted travel time of water, in combination with temperature and di...
A global assessment of environmental and climate influences on wetland macroinvertebrate community structure and functionNARA Subscribed
Estimating organisms' responses to environmental variables and taxon associations across broad spatial scales is vital for predicting their responses to climate change. Macroinvertebrates play a major role in wetland processes, but studies simultaneously exploring both community structure and community trait responses to environmental gradients are still lacking. We compiled a global dataset (six continents) from 756 depressio...
Prolonging survival in good health is a fundamental societal goal. However, the leading determinants of disability-free survival in healthy older people have not been well established. Data from ASPREE, a bi-national placebo-controlled trial of aspirin with 4.7 years median follow-up, was analysed. At enrolment, participants were healthy and without prior cardiovascular events, dementia or persistent physical disability. Disab...
An intense precipitation event causes a temperate forested drainage network to shift from N 2 O source to sinkNARA Subscribed
Nitrous oxide (N 2 O) evasion from streams and rivers is a significant, yet highly uncertain, flux in nitrogen cycle models. Most global estimates of lotic N 2 O emission assume that evasion rates are proportional to inorganic nitrogen inputs to a stream or river. However, many field studies do not detect relationships between lotic N 2 O evasion and dissolved nitrogen concentration, highlighting the need for better understand...
Streams and rivers are significant sources of carbon dioxide (CO 2 ) and methane (CH 4 ) to the atmosphere. However, the magnitudes of these fluxes are uncertain, in part, because dissolved greenhouse gases (GHGs) can exhibit high spatiotemporal variability. Concentration‐discharge ( C ‐ Q ) relationships are commonly used to describe temporal variability stemming from hydrologic controls on solute production and transport. Th...
Enhancement of primary production during drought in a temperate watershed is greater in larger rivers than headwater streamsNARA Subscribed
Drought is common in rivers, yet how this disturbance regulates metabolic activity across network scales is largely unknown. Drought often lowers gross primary production (GPP) and ecosystem respiration (ER) in small headwaters but by contrast can enhance GPP and cause algal blooms in downstream estuaries. We estimated ecosystem metabolism across a nested network of 13 reaches from headwaters to the main stem of the Connecticu...
Blood mercury concentrations in common bottlenose dolphins from the Indian River Lagoon, Florida: Patterns of social distributionNARA Subscribed
Social network analysis has been shown to be effective in studying the social structure of cetacean populations. Common bottlenose dolphins ( Tursiops truncatus ) inhabiting the Indian River Lagoon ( IRL ), Florida, have among the highest concentrations of total mercury ( TH g) in blood reported worldwide. The purpose of this study was to examine the relationship between TH g concentrations in IRL dolphins and their social aff...
Antiretroviral drugs induce oxidative stress and neuronal damage in the central nervous systemNARA Subscribed
HIV-associated neurocognitive disorder (HAND), characterized by a wide spectrum of behavioral, cognitive, and motor dysfunctions, continues to affect approximately 50 % of HIV(+) patients despite the success of combination antiretroviral drug therapy (cART) in the periphery. Of note, potential toxicity of antiretroviral drugs in the central nervous system (CNS) remains remarkably underexplored and may contribute to the persist...
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