A comparative analysis reveals weak relationships between ecological factors and beta diversity of stream insect metacommunities at two spatial levels. [PDF]
, 2015 The hypotheses that beta diversity should increase with decreasing latitude and increase with spatial extent of a region have rarely been tested based on a comparative analysis of multiple datasets, and no such study has focused on stream insects.
Al-Shami, Salman A. +30 more
core +6 more sources
Local factors determine plant community structure on closely neighbored islands. [PDF]
PLoS ONE, 2011 Despite the recent popularity of the metacommunity concept, ecologists have not evaluated the applicability of different metacommunity frameworks to insular organisms.
Jianbo Lu, Lin Jiang, Lin Yu, Que Sun
doaj +1 more source
Physical and biological controls on fine sediment transport and storage in rivers [PDF]
, 2018 Excess fine sediment, comprising particles
Casas-Mulet, R. +10 more
core +3 more sources
Temporal community change in stream ecosystems varies by assemblage across US climates
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem properties are temporally dynamic. Temporal variability has been shown to decrease with increasing levels of biological organization (i.e. from population to community and ecosystem levels).
Megan C. Malish +6 more
wiley +1 more source
Lake regionalization and diatom metacommunity structuring in tropical South America
Ecology and Evolution, 2018 Lakes and their topological distribution across Earth's surface impose ecological and evolutionary constraints on aquatic metacommunities. In this study, we group similar lake ecosystems as metacommunity units influencing diatom community structure.
Xavier Benito +4 more
doaj +1 more source
Effect of local and regional factors on the structure of the fish communities associated with aquatic macrophyte stands in oxbow lakes on the Amazon floodplain [PDF]
Anais da Academia Brasileira de CiênciasThe Amazon floodplain is home to an extremely high diversity of fish, with lakes playing an important role in the establishment of this biological richness.
RONALDO S. DA SILVA +6 more
doaj +1 more source
On traits matching and the modular organization of food web and occurrence networks
Journal of Animal Ecology, EarlyView.What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas +5 more
wiley +1 more source
Coexistence of specialist and generalist species is shaped by dispersal and environmental factors [PDF]
, 2014 Disentangling the mechanisms mediating the coexistence of habitat specialists and generalists has been a long-standing subject of investigation. However, the roles of species traits and environmental and spatial factors have not been assessed in a ...
Büchi, Lucie, Vuilleumier, Séverine
core +1 more source
Dirichlet multinomial mixtures: generative models for microbial metagenomics [PDF]
, 2012 We introduce Dirichlet multinomial mixtures (DMM) for the probabilistic modelling of microbial metagenomics data. This data can be represented as a frequency matrix giving the number of times each taxa is observed in each sample.
Harris, Keith +2 more
core +4 more sources
Predator identity influences metacommunity assembly [PDF]
Journal of Animal Ecology, 2016 Summary Predation is among the most important biotic factors influencing natural communities, yet we have a rather rudimentary understanding of its role in modulating metacommunity assembly. We experimentally examined the effects of two different predators (a generalist and a specialist) on metacommunity assembly, using protist microcosm ...
Nicole K, Johnston +2 more
openaire +2 more sources