Results 31 to 40 of about 143,176 (215)

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 ...
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Cobalt toxicity in anaerobic granular sludge: influence of chemical speciation [PDF]

, 2008
The influence of cobalt speciation on the toxicity of cobalt to methylotrophic methanogenesis in anaerobic granular sludge was investigated. The cobalt speciation was studied with three different media that contained varying concentrations of complexing ...
Hullebusch, E.D., van, Fermoso, F.G., Baldo-Urrutia, A.M., Bartacek, J., Lens, P.N.L.   +4 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, Philippe Grandcolas, Marianne Elias, Laure Desutter-Grandcolas, Hervé Jourdan, Arnaud Couloux, Tony Robillard   +6 more
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Simultaneous Determination of U-Pb Age and Trace Elements of Zircon by Laser Ablation Sector Field Inductively Coupled Plasma-Mass Spectrometry

Yankuang ceshi
Laser 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, Dongyang SUN, Mingyue HU, Jihai YUAN, Chenzi FAN, Xiuchun ZHAN   +5 more
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Searching for learning-dependent changes in the antennal lobe: simultaneous recording of neural activity and aversive olfactory learning in honeybees

Frontiers in Behavioral Neuroscience, 2010
Plasticity in the honeybee brain has been studied using the appetitive olfactory conditioning of the proboscis extension reflex, in which a bee learns the association between an odor and a sucrose reward.
Edith Roussel, Edith Roussel, Jean-Christophe Sandoz, Jean-Christophe Sandoz, Jean-Christophe Sandoz, Martin Giurfa, Martin Giurfa   +6 more
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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, Andrea Raab, Ellen Ducie, Shauna Howley, Joerg Feldmann, Andreas Martin Grabrucker   +5 more
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Multilocus phylogeography and ecological niche modeling suggest speciation with gene flow between the two Bamboo Partridges

Avian Research, 2021
Background Understanding how species diversify is a long-standing question in biology. The allopatric speciation model is a classic hypothesis to explain the speciation process. This model supposes that there is no gene flow during the divergence process
Pengcheng Wang, Chiafen Yeh, Jiang Chang, Hongyan Yao, Yiqiang Fu, Chengte Yao, Xiao Wang, Shouhsien Li, Zhengwang Zhang   +8 more
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Estimating parameters of speciation models based on refined summaries of the joint site-frequency spectrum [PDF]

, 2011
Understanding the processes and conditions under which populations diverge to give rise to distinct species is a central question in evolutionary biology.
Rose, Laura E., Peter Pfaffelhuber, Pfaffelhuber, P., Naduvilezhath, L., Laura E Rose, Thomas Städler, Laura E. Rose, Rose, L., Aurélien Tellier, Metzler, D., Haubold, Bernhard, Stephan, Wolfgang, Bernhard Haubold, Tellier, A., Lisha Naduvilezhath, Städler, T., Pfaffelhuber, Peter, Naduvilezhath, Lisha, Tellier, Aurélien, Haubold, B., Stephan, W., Städler, Thomas, Metzler, Dirk, Wolfgang Stephan, Dirk Metzler   +24 more
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Pleistocene speciation is not refuge speciation [PDF]

Journal of Biogeography, 2014
AbstractA number of researchers working on the origin of extant Neotropical biodiversity implicitly and without appropriate proofs assume that Pleistocene speciation should necessarily follow the rules of the refuge hypothesis. A recent example is provided by a study of Neotropical butterflies. Although the analysis showed that these groups experienced
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