Results 31 to 40 of about 6,467,658 (289)

The Species-Area Relationship in the Late Ordovician: A Test Using Neutral Theory

open access: yesDiversity, 2013
The fundamental biodiversity number, θ, as proposed by Hubbell, should be positively correlated with province area. Because θ can be calculated from preserved relative abundance distributions, this correlation can be tested in the fossil record for ...
Steven M. Holland, Judith A. Sclafani
doaj   +1 more source

Nonequilibrium Neutral Theory for Hitchhikers [PDF]

open access: yesMolecular Biology and Evolution, 2018
Selective sweep is a phenomenon of reduced variation at presumably neutrally evolving sites (hitchhikers) in the genome that is caused by the spread of a selected allele at a linked focal site, and is widely used to test for action of positive selection.
Yoko, Satta   +2 more
openaire   +2 more sources

Multiple phase transitions in an agent-based evolutionary model with neutral fitness [PDF]

open access: yesRoyal Society Open Science, 2017
Null models are crucial for understanding evolutionary processes such as speciation and adaptive radiation. We analyse an agent-based null model, considering a case without selection—neutral evolution—in which organisms are defined only by phenotype ...
Dawn M. King   +2 more
doaj   +1 more source

Changes in G+C content of a neutrally evolving gene under a non-reversible dynamics measured by computer simulations based on experimental evolution data

open access: yesGenetics and Molecular Biology, 2004
To evaluate the effects of non-reversibility on compositional base changes and the distribution of branch lengths along a phylogeny, we extended, by means of computer simulations, our previous sequential PCR in vitro evolution experiment. In that study a
Adriana Brunstein   +3 more
doaj   +1 more source

Reconciling niches and neutrality in a subalpine temperate forest

open access: yesEcosphere, 2017
The Unified Neutral Theory of Biodiversity has been put forth to explain species coexistence in forests worldwide, but its assumption of species equivalence has been met with much debate.
Tucker J. Furniss   +2 more
doaj   +1 more source

Understanding evolutionary paradigm of knockdown resistance in mosquitoes by analyzing DNA sequence polymorphisms in voltage-gated sodium channel in Culex quinquefasciatus

open access: yesAll Results Journals: Biol, 2011
The Voltage Gated Sodium Channel (VGSC) is critical for binding of different insecticides and plays a key role in insecticide resistance. The insect sodium channel consists of four homologous domains (I to IV), each containing six transmembrane segments (
Indra Baruah
doaj   +2 more sources

Hungarian neutral vowels [PDF]

open access: yes, 2013
In Hungarian, stems containing only front unrounded (neutral) vowels fall into two groups: one group taking front suffixes, the other taking back suffixes in vowel harmony. The distinction is traditionally thought of as purely lexical.
Szeredi, Dániel, Blaho, Sylvia
core   +1 more source

Assessing the Hybrid Effects of Neutral and Niche Processes on Gut Microbiome Influenced by HIV Infection

open access: yesFrontiers in Microbiology, 2019
That both stochastic neutral and deterministic niche forces are in effect in shaping the community assembly and diversity maintenance is becoming an increasingly important consensus.
Guanshu Yin, Yao Xia
doaj   +1 more source

Does effective population size affect rates of molecular evolution: Mitochondrial data for host/parasite species pairs in bees suggests not

open access: yesEcology and Evolution, 2022
Adaptive evolutionary theory argues that organisms with larger effective population size (Ne) should have higher rates of adaptive evolution and therefore greater capacity to win evolutionary arm races.
Nahid Shokri Bousjein   +3 more
doaj   +1 more source

Adding energy gradients and long‐distance dispersal to a neutral model improves predictions of Madagascan bird diversity

open access: yesEcology and Evolution, 2016
Macroecological patterns are likely the result of both stochastically neutral mechanisms and deterministic differences between species. In Madagascar, the simplest stochastically neutral hypothesis – the mid‐domain effects (MDE) hypothesis – has already ...
Falko T. Buschke   +2 more
doaj   +1 more source

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