Popular Speciation News and Current Events

Popular Speciation News and Current Events, Speciation News Articles.
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Vertical measurements of air pollutants in urban Beijing
Scientists from CAS Institute of Atmospheric Physics use vertically resolved observation system based on the Beijing 325m Meteorological Tower to gain an in-depth understanding of the vertical evolution characteristics of air pollutants within urban boundary layer.They find that that the temperature inversion coupled by the interactions of different air masses elucidated the 'blue sky -- haze' co-existent phenomenon. (2018-03-02)

The blue whale genome reveals the animals' extraordinary evolutionary history
For the first time, scientists of the German Senckenberg Biodiversity and Climate Research Center, Goethe University and the University of Lund in Sweden have deciphered the complete genome of the blue whale and three other rorquals. Surprisingly, the genomes show that rorquals have been hybridizing during their evolutionary history. In addition, rorquals seem to have separated into different species in the absence of geographical barriers. This phenomenon, called sympatric speciation, is very rare in animals. The study has just been published in (2018-04-06)

Temperature drives biodiversity
Why is the diversity of animals and plants so unevenly distributed on our planet? An international research team headed by the University of Würzburg has provided new data on this core issue of ecology. They found biodiversity to be driven by temperature. (2016-12-22)

Genomic tools for species discovery inflate estimates of species numbers, U-Michigan biologists contend
Increasingly popular techniques that infer species boundaries in animals and plants solely by analyzing genetic differences are flawed and can lead to inflated diversity estimates, according to a new study from two University of Michigan evolutionary biologists. (2017-01-30)

Redefining 'species'
What is a species? Biologists -- and ornithologists in particular -- have been debating the best definition for a very long time. A new commentary published in The Auk: Ornithological Advances proposes a novel concept: that species can be defined based on the unique coadaptations between their two genomes, one in the nuclei of their cells and the other in their mitochondria. (2017-03-08)

Galapagos study finds that new species can develop in as little as 2 generations
A study of Darwin's finches, which live on the Galapagos Islands in the Pacific Ocean, has revealed direct genetic evidence that new species can arise in just two generations. (2017-11-23)

Diversity without limits
Now, researchers at Temple and Oakland universities have completed a new tree of prokaryotic life calibrated to time, assembled from 11,784 species of bacteria. The new tree explores grand patterns of evolutionary change that, surprisingly, has revealed remarkable similarities with that of eukaryotes, including animals, plants, and fungi. (2016-11-22)

Explaining differences in rates of evolution
Scientists look to fossils and evolutionary trees to help determine the rate of evolution -- albeit with conflicting results. A new model by ETH researchers has helped to resolve these contradictions. (2018-12-18)

Mutation in single rice gene cancels interspecific hybrid sterility
Scientists successfully employed mutagenesis to identify the gene that causes hybrid sterility in rice, which is a major reproductive barrier between species. (2018-02-12)

The Western Ghats of India revealed two new primitive species of earthworm
Having conducted a survey of the earthworms in the Western Ghats mountains, India, a team of four scientists discovered two species new to science. Both belong to a primitive family. They are described in the open access journal ZooKeys. (2017-08-18)

Green toads with multiple genomes have ancestors that are only distantly related
Dr. Matthias Stoeck from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) and researchers from the University of Lausanne (Switzerland) and the Helmholtz-Centre for Environmental Research (UFZ) have just published an extensive phylogenetic tree for the Eurasian green toads. This phylogenetic tree shows that polyploid species are hybrids and only descend from parental species with a very high degree of genetic divergence. (2018-02-20)

Corals and their microbiomes evolved together, new research shows
Corals and the microbes they host evolved together, new research shows, adding fresh insight to the fight to save the Earth's embattled coral reefs. (2018-11-22)

Elusive venomous mammal joins the genome club
An article published in GigaScience presents a draft genome of a small shrew-like animal, the venomous Hispaniolan solenodon. This unusual animal is one of the only extant venomous mammals, and it is the sole remaining branch of mammals that split from other insectivores at the time of the dinosaurs. The solenodon genome sequence revealed the answer to several evolutionary questions, such as whether the solenodon species indeed survived the meteor impact that killed the dinosaurs. (2018-03-16)

New cryptic bird species discovered
Through persistent detective work and advances in genetic sequencing technology, Louisiana State University Museum of Natural Science researchers have discovered a new species of bird on Borneo -- the Cream-eyed Bulbul, or Pycnonotus pseudosimplex. Their discovery was published recently in the scientific journal, the Bulletin of the British Ornithologists' Club. (2019-03-27)

The first endemic Baltic Sea fish species received its name
Researchers at the University of Helsinki discovered and named a new endemic fish species in the Baltic Sea, the 'Baltic flounder,' Platichthys solemdali. (2018-07-11)

Origin of human genus may have occurred by chance
An often cited claim that humans, who are smarter and more technologically advanced than their ancestors, originated in response to climate change is challenged in a new report by a Center for the Advanced Study of Human Paleobiology researcher at George Washington University. (2017-08-04)

Two species of ravens nevermore? New research finds evidence of 'speciation reversal'
A new study almost 20 years in the making provides some of the strongest evidence yet of the 'speciation reversal' phenomenon -- where two distinct lineages hybridize and eventually merge into one -- in two lineages of common ravens. (2018-03-02)

DNA analyses show a dynamic coevolutionary relationship between birds and their feather mites
A genetic study uncovers that birds maintain a dynamic coevolutionary relationship with their feather mites. The study has involved the participation of the Estación Biológica de Doñana from the CSIC, and its results have just been published in the journal Molecular Ecology. (2019-01-17)

How the world's fastest muscle created four unique bird species
When the male bearded manakin snaps its wings at lightning speed, it's more than part of an elaborate, acrobatic mating ritual. The tiny muscle doing the heavy lifting is also the reason this exotic bird has evolved into four distinct species, according to new research published in the journal eLife by Wake Forest University biologist Matthew Fuxjager. (2018-10-30)

Family of rodents may explain how some groups of animals become so diverse
FSU Professor of Biological Science Scott Steppan and his former postdoctoral researcher John Schenk, now at Georgia Southern University, developed a new model that shows how geography can play a major role in how families of animals evolve and result in many species. (2018-10-03)

The evolution of 'true frogs' defies long-held expectations of science
New research from the University of Kansas appearing in Royal Society Biology Letters shows, in contrast to expectations, 'the rapid global range expansion of true frogs was not associated with increased net-diversification.' (2017-09-13)

Size matters -- To livebearer fish, big fins are a big deal
In a new paper, biologists from the University of California, Riverside, studied the evolution of 40 molly and Limia species, and concluded dorsal fin displays arose first for males to compete with other males, only later being used in courtship displays to females. These changes in fin function went hand in hand with enlargement of the male dorsal fin. The fins reached extreme sizes in a few species and appear to be associated with rapid evolution, especially in mollies. (2019-01-17)

For horned lizard, horns alone do not make the species
Counting the horns of California's horned lizard, or coast horned lizard, is one way to try to distinguish separate species, but a new study shows that to be unreliable. UC Berkeley and USGS biologists considered genetic, morphological and ecological data to separate the species into three, ranging from Baja to Northern California. (2009-07-21)

For flickers, looks can be deceiving
Despite the obvious visual differences between the Red-shafted Flicker of the west and the Yellow-shafted Flicker of the east, scientists have never before found genetic differences between them. A new study from The Auk: Ornithological Advances uses data from thousands of regions across the genome to distinguish these birds molecularly for the first time. (2018-06-06)

Ancient horse fossils hint factors driving evolution different than thought
A new study analyzing the evolution of horses suggests that patterns of migration and changes in environment drive the development of new traits, countering a theory called rapid phenotypic evolution that proposes the opposite -- that is, that development of traits is what allows a species to take over new niches. (2017-02-09)

Barn swallows may indeed have evolved alongside humans
The evolution of barn swallows, a bird ubiquitous to bridges and sheds around the world, might be even more closely tied to humans than previously thought, according to new study from the University of Colorado Boulder. (2018-11-01)

Frigid polar oceans, not balmy coral reefs, are species-formation hot spots
Tropical oceans teem with the dazzle and flash of colorful reef fishes and contain far more species than the cold ocean waters found at high latitudes. This well-known 'latitudinal diversity gradient' is one of the most famous patterns in biology, and scientists have puzzled over its causes for more than 200 years. (2018-07-04)

Dinosaur frills and horns did not evolve for species recognition
The elaborate frills and horns of a group of dinosaurs including Triceratops and Styracosaurus did not evolve to help species recognise each other, according to researchers at Queen Mary University of London. (2018-03-20)

U-M howler monkey study examines mechanisms of new species formation
A new University of Michigan study of interbreeding between two species of howler monkeys in Mexico is yielding insights into the forces that drive the evolution of new species. (2018-12-22)

How new species arise in the sea
How can a species split into several new species if they still live close to each other and are able to interbreed? Using a group of Caribbean reef fishes as a model system, a team of scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Smithsonian Tropical Research Institute has found that natural selection can couple the evolution of genes for vision and color pattern. The team has published its findings today in the international journal Nature Ecology and Evolution. (2019-03-04)

Ecologists receive mixed news from fossil record
In a paper to appear in the May issue of American Naturalist, University of Chicago paleontologists explore how the ecological information provided by fossil assemblages is determined by their process of accumulation. (2010-04-02)

Scientists reveal the evolutionary history of the angiosperm flora of China
The research team led by Dr. CHEN Zhiduan from the Institute of Botany, Chinese Academy of Sciences (CAS), in collaboration with other researchers have investigated the spatial and temporal divergence patterns of 92 percent of the angiosperm flora in China. (2018-01-31)

Do bacteria ever go extinct? New research says yes, bigtime
Bacteria go extinct at substantial rates, although appear to avoid the mass extinctions that have hit larger forms of life on Earth, according to new research from the University of British Columbia (UBC), Caltech, and Lawrence Berkeley National Laboratory. The finding, published today in Nature Ecology and Evolution, contradicts widely held scientific thinking that microbe taxa, because of their very large populations, rarely die off. (2018-07-30)

Environmentally-inspired 'niche' features impact species evolution
Tokyo, Japan - Researchers from Tokyo Metropolitan University have shown that the environment-driven evolution of a unique ovipositor in the female fruit fly Drosophila suzukii may have caused coevolution of the male genitalia; new features were found to cause mechanical incompatibility during reproduction with similar species, impeding crossbreeding and isolating the species. The dual role of the female genitalia was found to trigger coevolution and speciation, a generic pathway which may apply to many other organisms. (2018-11-10)

Biologists unlock 'black box' to underground world
A BYU biologist is part of a team of researchers that has unlocked the (2013-01-02)

Study tracks genomic changes that reinforce darter speciation
When they share habitat, orangethroat and rainbow darters tend to avoid one another, even though they are closely related and can produce 'hybrid' offspring. A new study offers an analysis of the genomic changes that occur when these fish hybridize, offering insight into the gradual accumulation of incompatible traits that likely drives them to diverge. (2019-11-25)

Hybrid chickadees found deficient at learning and memory
Scientists at Lehigh University and Franklin & Marshall College have found that hybrid chickadees have marked deficiencies in learning and memory compared to their pure species parents, a possible selective disadvantage. The study, published today in Evolution, is the first to identify deficiencies in learning and memory in a hybrid of any species. (2018-03-26)

Well established theories on patterns in evolution might be wrong
How do the large-scale patterns we observe in evolution arise? A new paper in the journal Evolution by researchers at Uppsala University and University of Leeds argues that many of them are a type of statistical artefact caused by our unavoidably recent viewpoint looking back into the past. As a result, it might not be possible to draw any conclusions about what caused the enormous changes in diversity we see through time. (2018-09-27)

Hamlet fish sheds light on evolution of marine species
To evolve or not to evolve? That is the question scientists at the University of East Anglia are closer to answering following a groundbreaking new study into the colorful hamlet fish. (2010-04-22)

Warming temperatures can reduce marine diversity but increase freshwater species
In contrast to previous research, scientists have found that habitat warming can reduce the diversity of species in marine environments, but increase speciation in freshwater habitats. (2016-10-04)

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