Results 21 to 30 of about 221,946 (289)
Geographic range size and speciation in honeyeaters
BMC Ecology and Evolution, 2022 Background Darwin and others proposed that a species’ geographic range size positively influences speciation likelihood, with the relationship potentially dependent on the mode of speciation and other contributing factors, including geographic setting ...
Eleanor M. Hay +2 more
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Ability of Current Phylogenetic Clustering to Detect Speciation History
Frontiers in Ecology and Evolution, 2021 Phylogenetic diversity aims to quantify the evolutionary relatedness among the species comprising a community, using the phylogenetic tree as the metric of the evolutionary relationships.
Athanasios S. Kallimanis +4 more
doaj +1 more source
International Journal of Environmental Research and Public Health, 2018 Environmental contamination with arsenic (As) is a global environmental, agricultural and health issue due to the highly toxic and carcinogenic nature of As.
G. Abbas +8 more
semanticscholar +1 more source
Frequency-dependent selection predicts patterns of radiations and biodiversity. [PDF]
PLoS Computational Biology, 2010 Most empirical studies support a decline in speciation rates through time, although evidence for constant speciation rates also exists. Declining rates have been explained by invoking pre-existing niches, whereas constant rates have been attributed to ...
Carlos J Melián +4 more
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Contrasting signatures of genomic divergence during sympatric speciation
Nature, 2020 The transition from ‘well-marked varieties’ of a single species into ‘well-defined species’—especially in the absence of geographic barriers to gene flow (sympatric speciation)—has puzzled evolutionary biologists ever since Darwin1,2.
Andreas F. Kautt +12 more
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The importance of intrinsic postzygotic barriers throughout the speciation process
Philosophical Transactions of the Royal Society of London. Biological Sciences, 2020 Intrinsic postzygotic barriers can play an important and multifaceted role in speciation, but their contribution is often thought to be reserved to the final stages of the speciation process.
J. Coughlan, D. Matute
semanticscholar +1 more source
Divergent preference functions generate directional selection in a jumping spider
Scientific Reports, 2023 Sexual selection has long been thought to promote speciation, but this possibility still remains a topic of controversy. Many theoretical models have been developed to understand the relationship between sexual selection and speciation, but such ...
Leonardo Braga Castilho
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Concentrations of Essential Trace Metals in the Brain of Animal Species—A Comparative Study
Brain Sciences, 2020 The essential trace metals iron, zinc, and copper have a significant physiological role in healthy brain development and function. Especially zinc is important for neurogenesis, synaptogenesis, synaptic transmission and plasticity, and neurite outgrowth.
Chiara Alessia DeBenedictis +5 more
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Secondary sympatry caused by range expansion informs on the dynamics of microendemism in a biodiversity hotspot. [PDF]
PLoS ONE, 2012 Islands are bounded areas where high endemism is explained either by allopatric speciation through the fragmentation of the limited amount of space available, or by sympatric speciation and accumulation of daughter species.
Romain Nattier +6 more
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Colour polymorphism and conspicuousness do not increase speciation rates in Lacertids
Peer Community Journal, 2023 Conspicuous body colours and colour polymorphism have been hypothesized to increase rates of speciation. Conspicuous colours are evolutionary labile, and often involved in intraspecific sexual signalling and thus may provide a raw material from which ...
de Solan, Thomas +4 more
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