Sentences with word «sympatric»

«I think it's probably one of the best, and only, examples of sympatric speciation in birds,» says Robert Zink of the University of Minnesota, Twin Cities.

This indicates that there are likely pre-mating barriers to heterospecific mating; previous research in my lab has indicated that the face patterns exhibited by guenons are likely contributing to maintaining species boundaries and have been under selective pressures to diversify (i.e. there is evidence of character displacement in sympatric species groups).

Evolutionary biologists have long argued about whether it's possible for a new species to arise in a population that isn't separated by geographic barriers, such as an ocean or a mountain range — a process called sympatric speciation.

Channel Islands slender salamanders are broadly sympatric with black - bellied slender salamanders (B. nigriventris) on Santa Cruz Island, where both species tend to occupy similar habitats (Campbell, 1931b; Schoenherr et al., 1999).

Bevins, S.N., et al., «Three Pathogens in Sympatric Populations of Pumas, Bobcats, and Domestic Cats: Implications for Infectious Disease Transmission.»

But evidence for sympatric speciation is growing, from mole rats in Israel to palms on Lord Howe Island, Australia, and apple maggots evolved from hawthorn maggots in North America, leading some evolutionary biologists to think it could be surprisingly common.»

Ari S. Friedlaender et al (2014)-- Feeding performance by sympatric blue whales exploiting a common prey resource A major focus in macroecology is to understand the mechanisms that drive differences in habitat, morphology, and behavior in closely related species.

Thus, frequent interaction with humans and reduced predation are likely the most important factors that distinguish the study population from sympatric commensal house mouse populations [16].

Scientists call the research a convincing example of how species can develop within overlapping ranges — a process known as sympatric speciation.

The Jehol birds faced competition with pterosaurs, and occupied sympatric habitats with nonavian theropods, some of which consumed birds.

The East African cichlid fishes of Lake Malawi are ideal for investigating behavioral adaptation to environment, as within genera, fine - scale niche partitioning has resulted in sympatric sister species that live in definable microhabitats with distinct selection pressures.

Shah, N. F. Foraging Strategies in the Two Sympatric Mangabey Species (Cercocebus agilis and Lophocebus albigena) PhD thesis, Stony Brook Univ. (2003).

Along the road to recovery, Adam gets both high as a kite and down and dirty with sympatric young ladies.

One must assume that it is because the film is sympatric toward the Jews.

Infection prevalence differed among sympatric felids, with a significantly lower prevalence for managed feral cats (17 %) than mountain lions, bobcats, or unmanaged feral cats subsisting on wild prey (73 - 81 %).

Dietary overlap between sympatric dingoes and feral cats at a semiarid rangeland site in Western Australia

Most harbour porpoises found dead on the north - east coast of Scotland show signs of attack by sympatric bottlenose dolphins, but the reason (s) for these violent interactions remain (s) unclear.

But a number of recent theoretical studies have suggested that so - called sympatric speciation can occur, in which different populations originate in one geographical area, but do not interbreed.

Or they can evolve to mate in different places, for example on two different types of fruit, as in the example given above for sympatric speciation.

This contrasts with virtually no human handling at all in sympatric commensal house mouse populations.

The species of wheat that we in the West use for bread only developed in the last few thousand years as a result of two episodes of sympatric speciation (different to selective breeding, but an agent of evolution none the less) and the various Shiraz, Char.donnay and Pinot Noir gra.pes we enjoy today, in the form of wine, were all developed and perfected in the last 100 years or so.

Denning ecology in sympatric populations of skunks (Spilogale gracilis and Mephitis mephitis) in west - central Texas.

A population refered to B. nigriventris is sympatric with this species on Santa Cruz Island.

This phenomenon, called sympatric speciation, is very rare in animals.

1 Word - just what is it about allopatric or sympatric speciation that necessitates the extinction of the stem species?

Because neither allopatric nor sympatric speciation require the extinction of the parent species.

Genetic tests also indicated a lack of breeding between the two killer whale types highlighting the distinctness of the sympatric Bigg's and resident killer whales on a local scale.

There are three main ideas concerning the emergence of new species (Modes of Speciation), each based on the degree to which populations undergoing this process are geographically isolated from one another (allopatric speciation, sympatric speciation, parapatric speciation).

Sympatric speciation occurs when new species emerge without separation, such as the 13 species of Galapagos finch or Africa's cichlid fish.

Additionally, assortative mating has been proposed as a mechanism for hybrid and sympatric speciation.

Especially in marine environments, sympatric speciation might be common; our results raise questions about how genetic divergence can be established.

Given that fossils from multiple hominin species, including P. boisei, H. erectus spp., H. habilis and H. rudolfensis, have all been discovered at Koobi Fora and attributed to the period of maximal lake coverage (∼ 1.8 — 1.9 Ma), it may be possible that these hominins were sympatric and in competition [48].

«Exploitation of the same habitat, but key differences at important times of the year, suggests that competition between a single species works to preserve the different phenotypes we observed - whilst simultaneously creating the potential for so - called sympatric speciation, i.e. the potential for a new species to form without geographic isolation,» says Hawley.

In the case of sympatric speciation, members of a species continue to live side by side, but still separate into different species.