Journal ArticleDOI
Niches versus neutrality: uncovering the drivers of diversity in a species-rich community.
TLDR
This work provides the first empirical evidence that a niche-neutral model can explain niche space occupancy pattern in a natural species-rich community and suggests this class of model may be a useful hypothesis for the generation and maintenance of species diversity in other size-structured communities.Abstract:
Ecological models suggest that high diversity can be generated by purely niche-based, purely neutral or by a mixture of niche-based and neutral ecological processes. Here, we compare the degree to which four contrasting hypotheses for coexistence, ranging from niche-based to neutral, explain species richness along a body mass niche axis. We derive predictions from these hypotheses and confront them with species body-mass patterns in a highly sampled marine phytoplankton community. We find that these patterns are consistent only with a mechanism that combines niche and neutral processes, such as the emergent neutrality mechanism. In this work, we provide the first empirical evidence that a niche-neutral model can explain niche space occupancy pattern in a natural species-rich community. We suggest this class of model may be a useful hypothesis for the generation and maintenance of species diversity in other size-structured communities.read more
Citations
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Journal ArticleDOI
Distribution and coexistence patterns of phytoplankton in subtropical shallow lakes and the role of niche-based and spatial processes
Karine F. Ribeiro,Cacinele Mariana da Rocha,Dilton de Castro,Lúcia Ribeiro Rodrigues,Luciane Oliveira Crossetti +4 more
TL;DR: In this paper, the roles of niche-based and spatial processes on phytoplankton communities of nine lakes in southern Brazil (spatial distance covered of 220 km) were evaluated.
Dissertation
Extrapolating insect biodiversity across spatial scales
TL;DR: This paper used simulated species assemblages to evaluate 29 abundance-based metrics of β-diversity against a set of desirable and "personality" properties, and identified a trade-off between robustness in the face of undersampling and sensitivity to turnover in rare species.
Journal ArticleDOI
Effects of simulated nitrogen deposition on the species networks of inner Mongolia grassland
TL;DR: In this paper, the authors present and compare species networks based on replicated experimental plant communities under different nitrogen addition rates and frequencies, and reveal variability in species networks and species combination stability under elevated nitrogen, which may help us understand changes in temperate ecosystems in the face of anthropogenic nitrogen enrichment.
Posted ContentDOI
Aboveground and belowground arthropod communities experience different relative influences of stochastic and deterministic assembly processes following disturbance
Scott Ferrenberg,Scott Ferrenberg,Alexander S. Martinez,Alexander S. Martinez,Akasha M. Faist +4 more
TL;DR: This study highlights the need to understand more fully the evolutionary drivers of infectious disease in response to infectious disease outbreaks in the wild.
Journal ArticleDOI
Interspecific synchrony is related to body-length similarity in a fish community under prolonged drought conditions
Barbbara da Silva Rocha,Emili García-Berthou,José Luís Costa Novaes,Luis Mauricio Bini,Marcus Vinicius Cianciaruso +4 more
TL;DR: In this article, the authors investigated interspecific synchrony patterns in a fish community under prolonged drought conditions, using a trait-based approach, and found a significant level of community-wide synchrony, with important implications for community stability during periods of prolonged drought.
References
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Book
Generalized Additive Models: An Introduction with R, Second Edition
TL;DR: In this article, a simple linear model is proposed to describe the geometry of linear models, and a general linear model specification in R is presented. But the theory of linear model theory is not discussed.
Book
The Unified Neutral Theory of Biodiversity and Biogeography
TL;DR: A study of the issue indicates that it is not a serious problem for neutral theory, and there is sometimes a difference between some of the simulation-based results of Hubbell and the analytical results of Volkov et al. (2003).
Journal ArticleDOI
Mechanisms of Maintenance of Species Diversity
TL;DR: Stabilizing mechanisms are essential for species coexistence and include traditional mechanisms such as resource partitioning and frequency-dependent predation, as well as mechanisms that depend on fluctuations in population densities and environmental factors in space and time.
Journal ArticleDOI
The Competitive Exclusion Principle
TL;DR: By emphasizing the very aspects that might result in their denial of them were they less plain the authors can keep the principle explicitly present in their minds untit they see if its implications are, or are noty as unpleasant as their subconscious might suppose.
Journal ArticleDOI
The Paradox of the Plankton
TL;DR: The problem that is presented by the phytoplankton is essentially how it is possible for a number of species to coexist in a relatively isotropic or unstructured environment all competing for the same sorts of materials.