Edwin Pos
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View article: Generalized Maximum Entropy: When and Why you need it
Generalized Maximum Entropy: When and Why you need it Open
The classical Maximum-Entropy Principle (MEP) based on Shannon entropy is widely used to construct least-biased probability distributions from partial information. However, the Shore-Johnson axioms that single out the Shannon functional hi…
View article: Evaluating Empirical Dynamic Modeling for forecasting: The role of variation among time series replicates
Evaluating Empirical Dynamic Modeling for forecasting: The role of variation among time series replicates Open
View article: Functional composition of the Amazonian tree flora and forests
Functional composition of the Amazonian tree flora and forests Open
Plants cope with the environment by displaying large phenotypic variation. Two spectra of global plant form and function have been identified: a size spectrum from small to tall species with increasing stem tissue density, leaf size, and s…
View article: Robustness and limitations of maximum entropy in plant community assembly
Robustness and limitations of maximum entropy in plant community assembly Open
An in-depth understanding of local plant community assembly is critical to direct conservation efforts to promising areas and increase the efficiency of management strategies. This, however, remains elusive due to the sheer complexity of e…
View article: The Biodiversity and Climate Variability Experiment (BioCliVE): Quantifying the role of biodiversity in buffering ecosystems against climatic variability
The Biodiversity and Climate Variability Experiment (BioCliVE): Quantifying the role of biodiversity in buffering ecosystems against climatic variability Open
Extreme climate events such as floods and droughts are becoming increasingly frequent and intense across the world. Future climate scenarios predict both an increase in individual extreme events, as well as chronic changes in climatic seas…
View article: Solving the SLoSS debate: Scale-dependent effects of habitat fragmentation on biodiversity loss
Solving the SLoSS debate: Scale-dependent effects of habitat fragmentation on biodiversity loss Open
Should what is left of nature be contained in a Single Large or Several Small (SLoSS) areas? This question of what would minimize the impact severity of habitat destruction on biodiversity loss is much debated, mainly because studies gener…
View article: Nothing lasts forever: Dominant species decline under rapid environmental change in global grasslands
Nothing lasts forever: Dominant species decline under rapid environmental change in global grasslands Open
Dominance often indicates one or a few species being best suited for resource capture and retention in a given environment. Press perturbations that change availability of limiting resources can restructure competitive hierarchies, allowin…
View article: Unraveling Amazon tree community assembly using Maximum Information Entropy: a quantitative analysis of tropical forest ecology
Unraveling Amazon tree community assembly using Maximum Information Entropy: a quantitative analysis of tropical forest ecology Open
View article: The Amazon Epiphyte Network: A First Glimpse Into Continental-Scale Patterns of Amazonian Vascular Epiphyte Assemblages
The Amazon Epiphyte Network: A First Glimpse Into Continental-Scale Patterns of Amazonian Vascular Epiphyte Assemblages Open
Epiphytes are still an understudied plant group in Amazonia. The aim of this study was to identify distributional patterns and conservation priorities for vascular epiphyte assemblages (VEA) across Amazonia. We compiled the largest Amazoni…
View article: <i>Unraveling Amazon tree community assembly using Maximum Information Entropy</i>: a quantitative analysis of tropical forest ecology
<i>Unraveling Amazon tree community assembly using Maximum Information Entropy</i>: a quantitative analysis of tropical forest ecology Open
In a time of rapid global change, the question of what determines patterns in species abundance distribution remains a priority for understanding the complex dynamics of ecosystems. The constrained maximization of information entropy provi…
View article: Author Correction: General destabilizing effects of eutrophication on grassland productivity at multiple spatial scales
Author Correction: General destabilizing effects of eutrophication on grassland productivity at multiple spatial scales Open
View article: General destabilizing effects of eutrophication on grassland productivity at multiple spatial scales
General destabilizing effects of eutrophication on grassland productivity at multiple spatial scales Open
View article: Biased-corrected richness estimates for the Amazonian tree flora
Biased-corrected richness estimates for the Amazonian tree flora Open
Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended …
View article: Scaling issues of neutral theory reveal violations of ecological equivalence for dominant Amazonian tree species
Scaling issues of neutral theory reveal violations of ecological equivalence for dominant Amazonian tree species Open
Neutral models are often used as null models, testing the relative importance of niche versus neutral processes in shaping diversity. Most versions, however, focus only on regional scale predictions and neglect local level contributions. R…
View article: Rolling the Dice or Struggling for Survival: Cheating in life's casino
Rolling the Dice or Struggling for Survival: Cheating in life's casino Open
At every scale of life, from microscopic bacteria to the towering giants of Amazonian trees we see a similar pattern of diversity where not every individual gets to be equally abundant. Rather, there is a pattern in which common species ar…
View article: Estimating and interpreting migration of Amazonian forests using spatially implicit and semi‐explicit neutral models
Estimating and interpreting migration of Amazonian forests using spatially implicit and semi‐explicit neutral models Open
With many sophisticated methods available for estimating migration, ecologists face the difficult decision of choosing for their specific line of work. Here we test and compare several methods, performing sanity and robustness tests, apply…
View article: Estimating species richness in hyper‐diverse large tree communities
Estimating species richness in hyper‐diverse large tree communities Open
Species richness estimation is one of the most widely used analyses carried out by ecologists, and nonparametric estimators are probably the most used techniques to carry out such estimations. We tested the assumptions and results of nonpa…