Speciation researchers evolution chemical. Medical search. Frequent questions

Species delimitation directly affects interpretation of evolution and biogeography. (ubc.ca)
I am a diversity and speciation researcher with evolutionary genomics and biogeography expertise and a background in evolutionary ecology. (lu.se)

We welcome abstracts from trainees, educators, researchers, policymakers, and funders who wish to share concrete ideas and strategies to strengthen the genetics research community with transformative inclusive practices across all career levels. (genetics-gsa.org)
His research group studies the genetics, evolution, conservation, population biology and systematics of a diverse array of marine organisms. (stanford.edu)
We are interested in various aspects of the genetics of sex differences, including sexual selection and sexual conflict, the evolution of sexual dimorphism, and sex chromosome evolution. (lu.se)

Authentic speciation is a process whereby organisms diversify within the boundaries of their gene pools, and this can result in variants with specific ecological adaptability. (icr.org)
Just one year prior to this 2014 study, 1 the epigenetic basis of speciation was demonstrated in birds in which the progressive geographical spread and ecological patterns of adaptation for a newly introduced songbird species were characterized by differences in DNA methylation patterns, not variation in the actual DNA sequence. (icr.org)
In reality, researchers are now discovering that organisms can robustly adapt to different ecological niches without major changes in their DNA sequence. (icr.org)
Through this study, they unravel the secrets behind the ecological diversity of life we see today, including speciation . (freescience.info)
The concept of 'ecological speciation' is one general model that can explain speciation. (biorxiv.org)
In Cameroon, their speciation is probably the consequence of ecological isolation. (seattlestar.net)

Johnson-Freyd 1 Sasha Johnson-Freyd OEB 230: The Genomics of Speciation Professor Jim Mallet May 2, 2014 SPECIATION IN THE FIG - FIG WASP MUTUALISM Abstract: Fig plants (Ficus) are pollinated by an obligate mutualistic symbiont, the fig wasp (Agaonidae). (studyres.com)

Speciation is limited by the originally created gene pool with no new formation of genes. (icr.org)
This work is expanding our view of the evolution of gamete morphology and the genes involved. (stanford.edu)
Masters projects in this area consider both beneficial and harmful insects in Australian ecosystems, and how to keep out unwanted invertebrates (biosecurity).The Evolution and Behaviour Group examines the behaviour and evolution of land animals at several levels, from genes to populations. (edu.au)

Chemosensory speciation (chemosensory isolation) is the evolution of a population to become distinct species that is driven by chemical stimuli (i.e., chemical signals, recognition). (wikipedia.org)
In addition, basic work on the molecular evolution of reproductive isolation and its influence on patterns of speciation uses marine model systems such as sea urchins. (stanford.edu)
Post-mating and post-zygotic barriers on their own still result in wasted reproductive effort ( Butlin 1987 ) thus, pre-mating isolation is required to complete speciation and maximize fitness. (biorxiv.org)

Genome Biology and Evolution. (icr.org)
It encompasses developmental biology , organismal biology, molecular evolution , and experimental evolution . (freescience.info)

Indonesia is gearing up to host a series of highly anticipated life sciences conferences in indonesia 2023-2024, attracting professionals, researchers, and innovators from across the globe. (internationalconferencealerts.com)

Critical interpretations of fossil fungi combined with phylogenies of living species have the potential to reveal patterns of character evolution and to inform estimates of the geological timing of fungal radiations. (ubc.ca)

These chemical signals may create premating or other isolating behavioral barriers that prevent gene flow among subpopulations that eventually lead to two separate species. (wikipedia.org)
Dr Eyres' research will focus on the process of speciation and the evolution of barriers to interbreeding between groups of organisms. (royalsociety.org)
Thus, areas of secondary contact between recently diverged species are required to study the evolution of reproductive barriers due to reinforcement. (biorxiv.org)

2 In contrast, traditional Darwinian evolution alleges that random changes in the DNA itself generate new and useful variants that are then selected by the environment. (icr.org)
The fact that, in the tunnels, it had now switched to human blood, together with its other adaptations to life underground, suggested that evolution was happening at a remarkably rapid rate, and one that challenged orthodox Darwinian theory. (londonist.com)
some of the classic cases of Darwinian change in the fossil record, such as the evolution of the horse in North America, have had to be discarded or modified as a result of more detailed information. (able2know.org)

The researchers carried out X-ray absorption spectroscopy at beamline BM30 (FAME), which enabled in-situ quantification of the chemical and redox state of arsenic trapped in the rocks and minerals. (esrf.fr)
Traditionally for these methods, samples have been collected in specially prepared "Summa type" canisters and transported to a laboratory for analysis by gas chromatography mass spectrometry (GC-MS). GC-MS allows for speciation and quantification of many HAPs and non-HAPs within the sample at ppm to ppb levels, but in many cases, the customer must wait weeks for a result. (thermofisher.com)

Frontiers in Ecology and Evolution. (ucmerced.edu)
Our research is primarily focused on the ecology and evolution of animal flight. (lu.se)
Our research lies at the interface of development, ecology, and evolution. (lu.se)

From these analyses, the researchers found that epigenetics correlated well with increased diversity among species while CNVs, based on actual DNA sequences, did not. (icr.org)

Researchers in 1999 identified the species of mosquito now living in the tube network as Culex pipiens . (londonist.com)
In 1999, researcher Radim Srám, sometimes spelled Radim Šrám, published his article "Impact of Air Pollution on Reproductive Health" in the journal Environmental Health Perspectives. (asu.edu)

For example, two populations that are not spatially isolated, yet form a species complex with several monophyletic types may require specific chemical identification for proper intraspecific communication and mate selection. (wikipedia.org)
Moreover this 'speciation' was so fast it might even imply that populations of mosquitoes living on different tube lines, and separated from each other by the action of trains, might themselves evolve into separate species. (londonist.com)

Evolution of host support for two ancient bacterial symbionts with differentially degraded genomes in a leafhopper host. (ucmerced.edu)
I also propose future areas of research exploring the role of other symbionts in the evolution and speciation of the fig-fig wasp mutualism. (studyres.com)

Most of the chemical arguments in support of creation over evolution have stressed the biochemical perspective as it relates to the origin of life. (icr.org)
The researchers compared a 340-base mitochondrial DNA sequence among the 20 species, which revealed that each lake held a monophyletic collection: a single origin, each lake colonized just one time. (seattlestar.net)

The molecular, host plant and geographic data in this study provide a baseline for future comparative analyses of butterflies, the researchers note. (nature.com)
In studies attempting to determine the molecular basis for beak variability in finches, researchers have found that very similar developmental genetic pathways among species can produce markedly different beak shapes. (icr.org)

This is the essence of evolution - natural selection favoring traits that ease survival to reproduce. (seattlestar.net)

It's becoming evident that both genetic variability and epigenetic mechanisms are built into the genome as adaptive systems of variation that allow for robust speciation to occur within the boundaries of created kinds. (icr.org)

In these networks, we study plant and insect trait evolution, and the role of trait diversification for gene flow and local adaptation. (lu.se)

BECC researchers study how direct and indirect human impacts on the climate and ecosystems influence biodiversity and ecosystem functioning from local to global scales, and how knowledge about these dynamics may inform mitigation and adaptation decisions in the face of such changes. (lu.se)

Steve's first science book for non-scientists The Evolution Explosion explored how human accelerate evolutionary change in the species around us. (stanford.edu)
Last year, for example, researchers published the genome of one such species, Sphingobium chlorophenolicum , which had been discovered in pentachlorophenol-laced soil in Minnesota in 1985. (spectrevision.net)
A chemical compound synthesized through the diversion of products of major metabolic pathways for use in defense by prey species. (web.id)
Currently, my main research activities include studies of mating-system and floral evolution in the neotropical vine Dalechampia, and studies of the role of species interactions in structuring the spatial and temporal dynamics of communities. (lu.se)
In this case, the comparative analysis of a total of 100 samples with different species, growth modes, and processing methods was carried out by nuclear magnetic resonance (1H-NMR) spectroscopy and chemical pattern recognition analysis. (bvsalud.org)

What is the history of speciation and evolution in this mutualism, and what adaptive pressures affect divergence? (studyres.com)

The expansion and evolution of chemosensory systems are especially evident in the insect lineage due to their life history. (wikipedia.org)

The host-dependent organisms harbor sensory adaptations that allow them to appropriately process complex mixtures of chemical cues. (wikipedia.org)
While it was once thought that this process was strictly facilitated by DNA sequence variability, Darwin's classic example of speciation in finches now includes a surprisingly strong epigenetic component as well. (icr.org)
This research will fill an important gap in understanding the process of speciation, with implications for how we understand the evolution of emerging diseases and crop pests. (royalsociety.org)
These analyses provide the backbone of evolutionary studies aiming to study the speciation process, population demographics or gene family evolution. (fccn.pt)
Deeply ingrained in everything from simple compound identification to process and regulatory monitoring, FTIR covers a wide range of chemical applications, especially for polymers and organic compounds. (thermofisher.com)

Interpretation of trait evolution using phylogenetic analysis. (ukzn.ac.za)

Particular areas of focus are the study of how life begins and carries on to the next generation, and how basic mechanisms of reproduction and development are disrupted by harmful chemicals and pollution in our environment as well as by genetic disorders. (edu.au)
In the article, Srám analyzes the effects of exposure to air pollution, which can include harmful chemicals, on fetal growth and development. (asu.edu)

Epigenetic changes involve the addition of chemical tags in an organism's genome without actually changing the genetic code. (icr.org)
In this current effort, the researchers studied two different factors in the genome. (icr.org)

For example, by examining the coevolution of camouflage in prey animals, biologists can gain insights into predator-prey dynamics and understand how certain adaptations enhance survival rates, leading to speciation. (freescience.info)

The newly appointed Research Fellows will be working on a wide and diverse range of research projects spanning the mathematical, physical, chemical and biological sciences. (royalsociety.org)

Through this scientific discipline, biologists gain insights into the intricate mechanisms driving evolution and its impact on our world. (freescience.info)

In this review, I discuss research on speciation and divergence in the fig-fig wasp mutualism, finding that the mutualism has a complex evolutionary history not well described by strict-sense coevolution. (studyres.com)
In this paper, I review past and current research on the history of speciation in figs (genus Ficus) and their mutualistic symbiotic pollinators, the fig wasps (family Agaonidae). (studyres.com)

The team, which included a researcher at the National Centre for Biological Sciences in Bengaluru, created a new phylogenetic tree of butterflies representing 92% of all genera. (nature.com)

University of Otago researchers are the recipients of an inaugural Marsden Fund Council Award worth $3 million to investigate genetic predisposition to metabolic diseases like diabetes and gout among Pacific people. (otago.ac.nz)

In vivo, a complex of chemical signals and pheromones are commonly perceived together instead of as chemical isolates. (wikipedia.org)
Regardless of the relationship (symbiont, commensal, or parasitic), host recognition is determined by deciphering the surrounding chemical cocktails for specific signals that excite their sensory receptors. (wikipedia.org)
The smell was also highly unpleasant - except to the mosquitoes, of course, who would have been drawn by this as well as by the body warmth and other chemical signals given off by the huddled masses. (londonist.com)
Although long recognized as potentially critical, specific functions of dissolved chemical signals in fertilization are unknown, especially under natural environmental conditions. (biologists.com)

Michael Dawson 's co-authored study contributes to the future ban of chemical sunscreen from the Island nation of Palau, an effort to protect their coral reefs. (ucmerced.edu)
QM/MM methods allow the study of chemical reactions in large systems with great accuracy. (fccn.pt)
The work within this study aimed to investigate and compare the effects of compound enzyme extraction (CE), ultrasonic chemical extraction (UC) and combined fermentation extraction (CF) on the physicochemical properties, microstructure, and functional properties of soluble dietary fiber (SDF) extracted from blue honeysuckle berries. (bvsalud.org)

These combined assaults disrupt the chemical and electrical pathways of the body until all systems cascade toward death. (motherjones.com)

For the vast majority of biologists, evolution is nothing more than natural selection," he wrote in 2007. (blogspot.com)

Principal investigators, Professors Tony Merriman and Lisa Matisoo-Smith and Dr Anna Gosling from Otago join Associate Professor Frank Camacho from the University of Guam and Dr Paul Pumuye of the University of Papua New Guinea and their team of researchers in the project. (otago.ac.nz)
They are one of two large interdisciplinary projects to receive the inaugural Marsden Fund Council Awards with the Marsden Fund (Te Pūtea Rangahau a Marsden) allocating a further $19 million to University of Otago researchers for another 31 projects. (otago.ac.nz)
It's hoped that the jab - which has been developed by researchers at the University of Oxford - can help turn the tide against a disease that has killed millions of babies and infants worldwide. (thenakedscientists.com)
The current superstar of this view, known as neutral evolution, is Michael Lynch, a geneticist at the University of Arizona. (blogspot.com)

Chemical communication between sperm and egg is a key factor mediating sexual reproduction. (biologists.com)
Chemical characterization by nuclear magnetic resonance spectroscopy indicated that the free amino acid L-tryptophan was the natural sperm attractant in H. rufescens . (biologists.com)

These facilities ranged across everything from oil & gas through refineries, chemicals, minerals and pharmaceuticals, plus a few food, transport and infrastructure projects. (psybertron.org)
Introduction information in the context of environmental releases, and mitigation of occupational risks--to argue for the The growth of nanotechnologies in industry sectors use of decision-analytic tools in lieu of formal risk ranging from pharmaceuticals and chemicals to assessment to help regulatory bodies. (cdc.gov)

Herein, ultrasound-assisted emulsification microextraction (USAEME) and dispersive liquid-liquid microextraction (DLLME) methods based on applying low-density organic solvents have been critically compared for the speciation of inorganic selenium, Se(IV) (selenite) and Se(VI) (selenate) in environmental water samples by gas chromatography-flame ionization detection (GC-FID). (who.int)

Evolutionists believe they have found a nearly complete fossil sequence for the evolution of modern whales from a land-based mammal called Pakicetus (52 mya, Fig. 2), but there are many problems (Table 1). (tasc-creationscience.org)

The insects feed mainly on grasses and legumes, two geographically widespread plant families that lack potent defensive chemicals. (nature.com)
and chemical signalling in insects. (edu.au)

The absence of fossil evidence for intermediary stages between major transitions in organic design, indeed our inability, even in our imagination, to construct functional intermediates in many cases, has been a persistent and nagging problem for gradualistic accounts of evolution. (able2know.org)
The rate at which all the heterotrophs in an ecosystem incorporate organic material into new biomass, which can be equated to chemical energy. (web.id)

Researchers report a 3D scan of the oldest vertebrate fossil brain yet discovered - in the head of a 319 million year old ray-finned fish. (theness.com)
Despite the bright promise that paleontology provides a means of 'seeing' evolution, it has presented some nasty difficulties for evolutionists, the most notorious of which is the presence of 'gaps' in the fossil record. (able2know.org)

The researchers probed the genomes for sequence subtleties that reflect artificial selection (selective breeding) behind the "genetically improved" status of the fish. (seattlestar.net)

The authors boldly demonstrate their capacity to survey both the biological evolution and widely varied human cultures' uses of cannabis. (ucpress.edu)

Developmental Effects of Endocrine-Disrupting Chemicals in Wildlife and Humans, was published in 1993 in Environmental Health Perspectives. (asu.edu)

The latest kerfuffle in evolution is over a recent article published in The Guardian by Stephen Buranyi, Do we need a new theory of evolution? . (blogspot.com)
Recent speciation of leaf-cutting ants has resulted voracious herbivores which are agricultural pests widely distributed throughout the Americas. (fapesp.br)

What story can we tell about the speciation events in the history of this mutualism? (studyres.com)

The development of the Neighborhood Looking Glass will be a significant benefit to neighborhood effects researchers, harnessing the largely untapped potential of street image data to capture built environment characteristics with potential impact on health. (utah.edu)
The term endocrine disruptor was coined in the article to describe the chemical pollutants that target the development and function of the endocrine system. (asu.edu)
Cannabis: Evolution and Ethnobotany is a comprehensive, interdisciplinary exploration of the natural origins and early evolution of this famous plant, highlighting its historic role in the development of human societies. (ucpress.edu)

The GIFT population has experienced intense artificial selection," wrote a team of researchers from China and Singapore who sequenced the genomes of 47 "tilapia individuals," published in Nature in 2015 . (seattlestar.net)
Stage M1 (BioGET, UM2): Dynamiques de population d'espèces végétales protégées en milieux méditerranéens anthropisés. (cnrs.fr)

ICR researchers are such stewards of science and are grateful for your ongoing gifts that allow them to continue ground-breaking work in these important fields. (icr.org)
This blind acceptance […] has led to a lot of sloppy thinking, and is probably the primary reason why evolution is viewed as a soft science by much of society. (blogspot.com)
This is the basic story of evolution, as recounted in countless textbooks and pop-science bestsellers. (blogspot.com)

This year has also seen many Otago researchers receive their first Marsden Fund awards, either a Fast Start early-career award, or a standard award as an established researcher. (otago.ac.nz)
A PI may nominate maximum 2 researchers per year. (lu.se)

A Principal Investigator (PI) in BECC is a permanently employed researcher at LU or UGOT (as researcher, associate senior lecturer, lecturer, or Professor). (lu.se)

They have summed up their current understanding of the evolution of pentachlorophenol-feeding with a diagram, which I've reprinted below. (spectrevision.net)
To become a PI, a researcher must be nominated by a current BECC PI to the BECC Board. (lu.se)

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