José Castela

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The decomposition of plant litter is one of the most important ecosystem processes in the biosphere and is particularly sensitive to climate warming. Aquatic ecosystems are well suited to studying warming effects on decomposition because the otherwise confounding influence of moisture is constant. By using a latitudinal temperature gradient in an(More)
Biomonitoring programs to access the ecological integrity of freshwaters tend to rely exclusively on structural parameters. Here we evaluated stream ecological integrity using (a) benthic macroinvertebrate derived metrics and a biotic index as measures of structural integrity and (b) oak litter decomposition and associated fungal sporulation rates as(More)
Objective: To determine the incidence of active tuberculosis (TB) in a cohort of health care workers (HCWs). Methods: Descriptive study of active TB cases identified in an occupational health screening of 6,112 HCWs between 2005 and 2010. Cases of active TB were defined as those in which Mycobacterium tuberculosis was identified by direct microscopy or(More)
Small forest streams and their riparian vegetation are closely linked ecosystems. Stream consumers obtain most of their energy from leaf litter provided by the terrestrial vegetation. Thus, understanding the relationship between riparian vegetation, aquatic communities and litter decomposition may help explaining the variability in aquatic communities and(More)
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