Results 21 to 30 of about 6,467,658 (289)

Genetic hitchhiking, mitonuclear coadaptation, and the origins of mt DNA barcode gaps

open access: yesEcology and Evolution, 2020
DNA barcoding based on mitochondrial (mt) nucleotide sequences is an enigma. Neutral models of mt evolution predict DNA barcoding cannot work for recently diverged taxa, and yet, mt DNA barcoding accurately delimits species for many bilaterian animals ...
Geoffrey E. Hill
doaj   +1 more source

The Role of Causal Processes in the Neutral and Nearly Neutral Theories [PDF]

open access: yes, 2007
In this paper, we will consider how the neutral and nearly neutral theories of molecular evolution differ from each other as a means for addressing causal processes associated with random drift and natural selection.
Michael R. Dietrich   +6 more
core   +1 more source

Latitudinal phytoplankton distribution and the neutral theory of biodiversity [PDF]

open access: yes, 2012
Aim Recent studies have suggested that global diatom distributions are not limited by dispersal, in the case of both extant species and fossil species, but rather that environmental filtering explains their spatial patterns.
Chust, Guillem   +8 more
core   +1 more source

Biogeographic Drivers of Evolutionary Radiations

open access: yesFrontiers in Ecology and Evolution, 2021
Some lineages radiate spectacularly when colonizing a region, but others do not. Large radiations are often attributed to species’ adaptation into niches, or to other drivers, such as biogeography including dispersal ability and spatial structure of the ...
Ran Tao, Lawren Sack, James Rosindell
doaj   +1 more source

The edge of neutral evolution in social dilemmas [PDF]

open access: yes, 2009
The functioning of animal as well as human societies fundamentally relies on cooperation. Yet, defection is often favorable for the selfish individual, and social dilemmas arise.
Reichenbach, Tobias   +2 more
core   +1 more source

Fine‐scale substrate heterogeneity in green roof plant communities: The constraint of size

open access: yesEcology and Evolution, 2019
Heterogeneity–diversity relationship (HDR) is commonly shown to be positive in accordance with classic niche processes. However, recent soil‐based studies have often found neutral and even negative HDRs. Some of the suggested reasons for this discrepancy
Amiel Vasl   +3 more
doaj   +1 more source

Structuring of Dragonfly Communities (Insecta: Odonata) in Eastern Amazon: Effects of Environmental and Spatial Factors in Preserved and Altered Streams

open access: yesInsects, 2019
The evaluation of the effects of environmental factors on natural communities has been one of the principal approaches in ecology; although, over the past decade, increasing importance has been given to spatial factors.
José Max Barbosa Oliveira-Junior   +1 more
doaj   +1 more source

Numerical solutions of neutral stochastic functional differential equations [PDF]

open access: yes, 2008
This paper examines the numerical solutions of neutral stochastic functional differential equations (NSFDEs) $d[x(t)-u(x_t)]=f(x_t)dt+g(x_t)dw(t)$, $t\geq 0$.
Wu, Fuke   +5 more
core   +3 more sources

Simulating Groundcover Community Assembly in a Frequently Burned Ecosystem Using a Simple Neutral Model

open access: yesFrontiers in Plant Science, 2019
Fire is a keystone process that drives patterns of biodiversity globally. In frequently burned fire-dependent ecosystems, surface fire regimes allow for the coexistence of high plant diversity at fine scales even where soils are uniform.
E. Louise Loudermilk   +9 more
doaj   +1 more source

Long-Term Stochasticity Combines With Short-Term Variability in Assembly Processes to Underlie Rice Paddy Sustainability

open access: yesFrontiers in Microbiology, 2020
Revealing temporal patterns of community assembly processes is important for understanding how microorganisms underlie the sustainability of agroecosystem.
Wenjing Liu   +8 more
doaj   +1 more source

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