Results 21 to 30 of about 142,936 (307)
Frontiers in Neuroscience, 2019 Brain metal homeostasis is altered in neurodegenerative diseases and the concentration, the localization and/or the chemical speciation of the elements can be modified compared to healthy individuals.
Asuncion Carmona +13 more
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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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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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In search of the Goldilocks zone for hybrid speciation II: hard times for hybrid speciation? [PDF]
, 2023 Hybridization opens a unique window for observing speciation mechanisms and is a potential engine of speciation. One controversially discussed outcome of hybridization is homoploid hybrid speciation by reciprocal sorting, where a hybrid population ...
Vedanth Sriram +5 more
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Genome-wide tests for introgression between cactophilic Drosophila implicate a role of inversions during speciation [PDF]
, 2015 K.L. was funded by a junior research fellowship from the National Environmental Research Council, UK (NE/I020288/1, NBAF659).Models of speciation-with-gene-flow have shown that the reduction in recombination between alternative chromosome arrangements ...
Etges, William J +9 more
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, 2023 Studies of plants have been instrumental for revealing how new species originate. For several decades, botanical research has complemented and, in some cases, challenged concepts on speciation developed via the study of other organisms while also ...
Dan G. Bock +19 more
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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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Migration and speciation [PDF]
Nature, 2000 Although migration is a common behaviour, the effects of this annual two-way event on the speciation process are poorly understood, even though birds, which are commonly migratory b played a critical role in the development of speciation theory1,2. Here I propose that new developments3,4 in the theory of sympatric speciation — a process whereby new ...
openaire +2 more sources
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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Yankuang ceshiLaser ablation sector field inductively coupled plasma-mass spectrometry (LA-SF-ICP-MS) is widely applied in U-Pb dating of zircon due to its remarkable sensitivity.
Linghao ZHAO +5 more
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