Sentences with phrase «adaptive radiation»

Most studies of adaptive radiation in animals focus on resource competition as the primary driver of trait divergence.

But this nice example of adaptive radiation — a single ancestor giving rise to an array of species all exploiting slightly different environmental niches — has been largely overlooked by biologists before now.

«The Hawaiian honeycreepers are a classic example of adaptive radiation in animals, second only to Darwin's finches,» she says.

Groups such as mammals and frogs are known to have rebounded rapidly after that event, diversifying into multiple new forms as they occupied newly available niches — a process evolutionary biologists called adaptive radiation.

In addition, the first conceptual paper on adaptive radiation therapy in Physics in Medicine and Biology, co-authored by Dr. Wong, was selected as one of the journal's 25 most important papers published in its 60 - year history.

The paper, titled: «The genomic substrate for adaptive radiation in African cichlid fish» is published in Nature.

Christopher Adams creates sculptures that play on biological concepts, specifically adaptive radiation, whereby a pioneering organism enters an untapped environment and then differen...

That is among the conclusions in a new study testing the importance of «first arrival» in controlling adaptive radiation of species, a hypothesis famously proposed for «Darwin's Finches,» birds from the Galapagos Islands that were first brought to scientific attention by Darwin.

«They provide us with an echo of real ecological processes, like adaptive radiations, when an organism rapidly diversifies due to a change in environment or to fill a new niche,» O'Dwyer said.

The fast and furious adaptive radiation of honeycreepers rivals that of finches on the Galápagos Islands, another case study in how natural selection marches at double time in the confines of isolated islands.

Paradoxically, because Lake Tanganyika is already considered the poster child for studies of evolutionary adaptive radiation — only not because of its eels.

The fanged frogs are special, McGuire says, because they appear to represent a virtually unexplored adaptive radiation with many species occurring at the same sites but adapted to occupy distinct ecological niches.

Fanged frogs present an even more exciting challenge, he says, because their diversification likely was influenced not only by the dynamic tectonics of Sulawesi, but also by adaptive radiation via ecological diversification.

«We wanted to understand the role of species colonization history in regulating the interaction between the rapidly - evolving bacterium Pseudomonas fluorescens SBW - 25 and competing species and how that affected P. fluorescens adaptive radiation in the ecosystem,» said Jiaqi Tan, a research scientist in Georgia Tech's School of Biological Sciences.

In future work Jiang hopes to study how the introduction of predators may combine with species competition to affect adaptive radiation.

This allowed the group led by Ole Seehausen (head of the Fish Ecology and Evolution department at Eawag and Professor of Aquatic Ecology at Bern University) to provide strong evidence for his theory that hybridization between divergent species, in conjunction with ecological opportunity, can facilitate rapid adaptive radiation.

«This is unique evidence of one of the most spectacular known examples of an incomplete adaptive radiation,» says Juan Francisco Ornelas, an evolutionary biologist at the Institute of Ecology in Xalapa, Mexico.

At the time this was probably rather useless genomic variation, but has now become incredibly beneficial millions of years later when the opportunity for major adaptive radiations arose, changing the way we think about evolutionary processes.»

Nature 2014, 513, 375 - 381 — Nature News & Views Cichlid fishes are famous for large, diverse and replicated adaptive radiations in the Great Lakes of East Africa.

This phenomenon, commonly called adaptive radiation, means that the original (homogeneous) species eventually divides into subspecies that can be very different in physical appearance - so - called phenotypic differences - because they have been selected for and adapted to different habitats or specific niches.

If the competing and diversifying species are very similar ecologically, we find a stronger effect of species colonization history on adaptive radiation.»

Christopher Adams creates sculptures that play on biological concepts, specifically adaptive radiation, whereby a pioneering organism enters an untapped environment and then differentia...

The genomic substrate for adaptive radiation in African cichlid fish.

Most studies of adaptive radiation in natural systems have focused on consumer - resource interactions and competition, but in this study, researchers show that enemies are a potent source of selection that helps to drive adaptive divergence among populations of gall midges on goldenrod plants.

The genus Christianity has been through an adaptive radiation into over 40,000 species of Christianity (Christianitus Cathilicus, Christianitus Lutheranus, etc.).

Together, the experiment and genetics show that adaptive radiation, at least in the vial, is due «to the most basic evolutionary processes: simple mutations and natural selection.»

The iconic Darwin's Finches on the Galapagos Islands are a classic example of adaptive radiation.

The findings, says Farrell, «show how moving into a new environment, where there's no competition, can free you for an explosive, adaptive radiation.»

New branches on the tree of life had sprouted, setting the stage for an explosive diversification of forms that evolutionary biologists call an adaptive radiation.

Like Charles Darwin's famous finches, which evolved a wide range of beak shapes and sizes to exploit the different foods available in the Galápagos Islands, these cichlids represent a textbook example of what biologists term an adaptive radiation — the phenomenon whereby one lineage spawns numerous species that evolve specializations to an array of ecological roles.

«This is characteristic of other «adaptive radiation» events of this kind, such as the famous «Cambrian explosion»,» said Dr Close.

These critters are hanging on by the skin of their adaptive radiations.

These findings support the role of competition in models of community assembly, speciation, and adaptive radiations.

The study is believed to be the first rigorous experimental test of the role colonization history plays in adaptive radiation.

Losos offers a comprehensive synthesis of research on the adaptive radiation of anoline lizards in the Caribbean.

Among his hypotheses was that the birds were successful in their adaptive radiation — the evolutionary diversification of morphological, physiological and behavior traits — because they were early colonizers of the islands.

Adaptive radiation has important implications for new ecosystems, particularly with organisms that evolve rapidly.

Adaptive radiations are most common when animals and plants arrive at previously uninhabited islands.

Examples of adaptive radiation can be found in: the Galapagos finches, Australia's marsupials, Hawaii's honeycreepers and fruit flies, Madagascar's carnivores and other mammals, New Zealand's birds and the prehistoric flying pterosaurs.

Adaptive radiation is the rapid speciation of one ancestral species to fill many empty ecological niches.

Darwin also found evidence for his theory in examples of convergent evolution, co-evolution and adaptive radiation.

The birds are a textbook example of adaptive radiation, in which a single ancestor responds to a selective pressure — in this case, food availability — by diversifying into several species.

(«Adaptive radiation» is biologists» term for a rapid differentiation into distinct species.)

Across the large lakes of this region, the hybrid population then diversified in a process known as «adaptive radiation» (evolution of multiple new species adapted to different ecological niches).

Like Darwin's finches, the cichlids are a dramatic example of adaptive radiation, the process by which multiple species «radiate» from an ancestral species through adaptation.

Prior to this I was a a post-doc in James Higham's lab at New York University investigating how the colourful face patterns of guenon primates were involved in the adaptive radiation of the tribe.

These results imply that predators are driving the evolution of phenotypic diversity in symbiotic defense traits in this system, and that divergence in defensive morphology may provide ecological opportunities that help to fuel the adaptive radiation of this genus of midges on goldenrods.

These Asteromyia gall midges are adaptively radiating into multiple genetically distinct lineages on the same host plant that vary in their gall forms, and it is the ecological selective drivers of this «adaptive radiation» that Heath et al. seek to uncover.