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454 Pyrosequencing and Sanger sequencing of tropical mycorrhizal fungi provide similar results but reveal substantial methodological biases.
It was found that most pyrosequencing singletons were artifactual and contained a strongly elevated proportion of insertions compared with natural intra- and interspecific variation, which influenced the richness and community composition as recovered by pyro sequencing. Expand
Soil resources and topography shape local tree community structure in tropical forests
- C. Baldeck, K. Harms, +16 authors J. Dalling
- Geography, Medicine
- Proceedings of the Royal Society B: Biological…
- 22 February 2013
For the majority of sites, adding soil resource variables to topography nearly doubled the inferred role of habitat filtering, accounting for variation in compositional structure that would previously have been attributable to dispersal. Expand
A general framework for the distance–decay of similarity in ecological communities
A general framework to describe how the distance–decay relationship is influenced by population aggregation and the landscape-scale species-abundance distribution is developed and it is shown that rare species have a weak influence on distance-decay curves, and that overall similarity and rates of decay are primarily influenced by species abundances and population aggregation respectively. Expand
Testing metabolic ecology theory for allometric scaling of tree size, growth and mortality in tropical forests.
There are no universal scaling relationships of growth or mortality with size among trees in tropical forests, and a set of alternative predictions were developed that retained some assumptions of metabolic ecology while also considering how availability of a key limiting resource, light, changes with tree size. Expand
Rate of tree carbon accumulation increases continuously with tree size
A global analysis of 403 tropical and temperate tree species shows that for most species mass growth rate increases continuously with tree size, which means large, old trees do not act simply as senescent carbon reservoirs but actively fix large amounts of carbon compared to smaller trees. Expand
Relationships among net primary productivity, nutrients and climate in tropical rain forest: a pan-tropical analysis.
- C. Cleveland, A. Townsend, +15 authors W. Wieder
- Environmental Science, Medicine
- Ecology letters
- 1 September 2011
A meta-analysis of carbon-nutrient-climate relationships in 113 sites across the tropical forest biome showed that mean annual temperature was the strongest predictor of aboveground NPP (ANPP) across all tropical forests, but this relationship was driven by distinct temperature differences between upland and lowland forests. Expand
CTFS-ForestGEO: a worldwide network monitoring forests in an era of global change.
- K. Anderson-Teixeira, S. Davies, +105 authors J. Zimmerman
- Business, Environmental Science
- Global change biology
- 1 February 2015
The broad suite of measurements made at CTFS-ForestGEO sites makes it possible to investigate the complex ways in which global change is impacting forest dynamics, and continued monitoring will provide vital contributions to understanding worldwide forest diversity and dynamics in an era of global change. Expand
The variation of tree beta diversity across a global network of forest plots
Comparisons of tree beta diversity across regions should quantify not only overall variation in species composition but also its components, because different components of beta diversity have different determinants. Expand
Comparing tropical forest tree size distributions with the predictions of metabolic ecology and equilibrium models.
This work uses demographic equilibrium theory to derive analytic predictions for tree size distributions corresponding to different growth and mortality functions and tests these predictions using data from 14 large-scale tropical forest plots encompassing censuses of 473 ha and > 2 million trees. Expand
Scale-dependent relationships between tree species richness and ecosystem function in forests
This work focuses on forests, which represent a majority of global biomass, productivity and biodiversity, and investigates the relationship between species richness and ecosystem function as measured by productivity or biomass. Expand