Sentences with phrase «of adaptive radiation»

One of many branches of the major explosion of adaptive radiation that occurred in the wake of the Permian extinction event.

Darwin's finches are a classical example of an adaptive radiation.

The process of adaptive radiation, in which one ancestral lineage adaptively diversifies into multiple ecologically distinct species, may underlie much of the diversity of organisms on earth.

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.

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.

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.

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

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

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

Not exact matches

Colonisation routes, habitat shifts, disruption of populations by volcanism, dispersal by massive landslides, and other relevant aspects for adaptive and non-adaptive radiation, are largely discussed and confronted with previously published data referring to other groups of beetles or to other biological organisms (spiders, bush crickets, plants, etc.).

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.

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.

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

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

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

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.

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

«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.

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.

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

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

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.

That's what prompted the researchers to use a multi-scale, multi-physics approach, employing two different codes: ZEUS - MP, which has the radiation transport required to evaporate the halo, and CASTRO, which was developed at Berkeley Lab and has the adaptive mesh refinement needed to resolve the collision of the ejected metal with the halo.

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.

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).

«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.

Adaptive evolution of cytochrome c oxidase: infrastructure for a carnivorous plant radiation.

Adaptive evolution of cytochrome c oxidase: infrastructure for a carnivorous plant radiation Jobson, R. W., R. Nielsen, L. Laakkonen, M. Wikström et al. 2004.

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.»

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.

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.

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.

This enemy - driven phenotypic divergence in a diversifying lineage illustrates the potential importance of consumer - resource and symbiotic species interactions in 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.

There could be three evolutionary processes could explain this adaptive radiation of hominins: 1) the occupation of novel niches for species living in a highly productive but spatially constrained region when there are deep fresh water lakes in the EARS [46] and 2) the lakes themselves creating spatial structure producing population isolation and vicariance and 3) repeated periods of increased resource availability stimulated adaptation and radiation followed by periods of environmental stress when the lakes rapidly dried up imposing strong selection pressures [28].

The most comprehensive comparative analysis of anole lizards sheds new light on their status as an adaptive radiation

With a new analysis of two such adaptive radiations in the fossil record, researchers have discovered that these diversifications proceeded head - first.

Intentionally or not, Cordy Ryman's use of the biological term «adaptive radiation» suggests the rhythmic relationship between his radiating patterns of paint and materials and their underlying, obdurate physicality.