It is believed that this technique could explain why the many seemingly
isolated populations of estuarine crocodile have not split into divergent species.
Before joining LDF, she conducted and published research on antipredator behaviors in island
isolated populations of California quail.
Another is population viability analysis, which uses computer models to project trends in a range of conditions affecting
isolated populations of a species and calculates the probability of long - time survival.
But I would never try to convince anyone that I know what the myriad geographically
isolated populations of paleolithic humans composed for their various diets.
After that year, the researchers may continue to work on any stem cell lines (
the isolated populations of stem cells) that they have established.
The genomes of both the Vindija and Altai Neanderthals provide evidence that Neanderthals lived in small and
isolated populations of no more than about 3,000 individuals per region.
Konstanz evolutionary biologists working with Prof. Axel Meyer have now described parallel evolution of two closely related, but geographically
isolated populations of cichlid fish in Nicaraguan crater lakes.
So how do
you isolate a population of cow - sized reptiles?
She works to
isolate populations of these cells, discover how the body regulates them, and understand how they can be used to treat disease.
The second was an Amazonian group from
an isolated population of indigenous Amerindians.
In some situations, like war, it may be good to have
an isolated population of young males.
By 35,000 years ago, H. sapiens appears to have had the planet to itself, with the possible exception of
an isolated population of H. floresiensis — the «hobbit» people of Southeast Asia — and another newly discovered hominid species in China.
An isolated population of honeybees, the Cape bees, living in South Africa has evolved a strategy to reproduce without males.
A different research group recently found that the Osiris gene cluster is under strong selection in
an isolated population of the fly D. yakuba that has just begun adapting to a diet of poison - laden noni, another clue that learning more about these genes may be crucial for understanding OA resistance and this compelling model of ecological adaptation.
TVT remained in
an isolated population of dogs for most of its history, then something happened that allowed it to move into other dog populations and spread around the world3.
In a punctuationist model of speciation in Homo, the anatomical and cognitive adaptations unique H. sapiens would have evolved together in a small,
isolated population of its parent species (currently thought to be H. heidelbergensis).
A coalition of environmental groups are suing the U.S. Fish and Wildlife Service (FWS) for not listing
an isolated population of Greater Sage Grouse on the CA - NV border as endangered.
A coalition of environmental groups are suing the U.S. Fish and Wildlife Service (FWS) for not listing
an isolated population of Greater...
Not exact matches
«Since the late 80s... the number
of people who say they feel
isolated has doubled if not trebled, according to
population surveys in Europe, the US and Australia.»
The decision to
isolate high - risk offenders system follows a government report which highlighted the dangers
of leaving religious extremist prisoners as part
of the general prison
population.
As described in this 2015 YouTube video (embedded below), a low social credit score is meant to
isolate unruly citizens from the rest
of the
population and deny them access to state services and benefits via travel bans, increased prices for day - to - day products, higher bank interests, and others.
Denied the support
of the
population, insurgents can be
isolated and defeated.
Change can also occur due to accidental loss
of alleles (genetic drift) in small
isolated populations.
The effort that is expended in segregating,
isolating, and discriminating large segments
of the
population would be better spent dealing with things like decent education, housing and medical care for ALL.
For the most part the persecution seems to have taken the form
of the enmity
of the surrounding
population finding vent in
isolated cases
of violence.
So, this isn't a problem that is
isolated to a small subsection
of our
population but is probably something ingrained within our psyche.
The inclusion
of isolated population segments into the dominant economy created permanent disruptions in the moral economy
of rural life — social upheavals that generated potential recruits for sectarian movements.
Economic expansion in this core was associated with two other dominant trends: growth in
population (the so - called demographic transition, which both facilitated, and was facilitated by, industrialization) and the geographic inclusion
of previously
isolated, local, and ethnic sectors
of the
population into the commercial and industrial labor force.
A telling characteristic
of the great problems which haunt the world (our relation to nature, world
population issues, the call for justice) is that these problems can not be
isolated from one another.
The state is one
of the most
isolated population centers on earth, located 2,390 miles from the U.S. mainland and 3,850 from Japan.
See Appendix A. 1 for more information * There are a number
of broad Australian comparative disadvantages such as high labour costs, a dispersed and geographically
isolated market and small
population which impact the MTP sector.
Those neighborhoods have only become more challenged in the last few decades as the
population that remains has become more
isolated from the rest
of Chicago.
The Andromeda Galaxy is easily visible to the naked eye in a moderately dark sky, though such a sky is available only in smaller towns and
isolated areas reasonably far from
population centers and sources
of light pollution.
In contrast, some languages with large
populations of speakers, such as Mandarin, Hindi, and Arabic, are relatively
isolated in these networks.
This massive environmental change is believed to have created
population bottlenecks in the various species that existed at the time; this in turn accelerated differentiation
of the
isolated human
populations, eventually leading to the extinction
of all the other human species except for the branch that became modern humans.
As this resource becomes less permanent due to warming, wolverine
populations may become physically and genetically
isolated — leading to decline
of the species
The authors examine the concept and importance
of maintaining connectivity (ability
of wildlife
populations to move among landscapes between habitat «islands» such as mountain tops, forest fragments and
isolated wetlands) and corridor ecology.
Let's say that a species migrates out
of Africa into Europe around 400,000 years ago and becomes reproductively
isolated from its ancestral
population for the next 320,000 years.
The search for the gene began in Finland, whose
isolated population has often been studied for its elevated rate
of rare genetic diseases.
The natural world was a continuum, he concluded, with
isolated populations perpetually in the process
of becoming species in their own right.
According to the late Harvard University biologist Ernst W. Mayr, the greatest evolutionary theorist since Charles Darwin, «species are groups
of actually or potentially interbreeding natural
populations which are reproductively
isolated from other such groups.»
When you
isolate one segment
of a
population, you often get extreme behavior.
«We were really surprised to see that the levels
of resistance
of the individual
isolates were considerably lower than the
population as a whole,» explains Collins, who published his results recently in Nature.
Then there's Pailin's tragic history as the last stronghold
of the Khmer Rouge, which left the
population shattered,
isolated, uneducated, suspicious, and devastatingly poor.
Infectious disease experts say the outbreak underscores one lesson
of the Ebola epidemic
of 2 years ago: As cities burgeon and
populations become more mobile, once -
isolated diseases are increasingly likely to reach cities, where they can race out
of control.
«Unlike most terrestrial species,
populations of whales within oceans are not
isolated by geographic barriers.
The lynx's conservation strategy consists
of connecting
isolated populations through ecological corridors, but the information provided through local and regional
population viability models for short and longer time periods also helps.
With the aim
of studying the history and genetic diversity
of the species, analysis was conducted on the genomes
of another ten Iberian lynxes from Doñana and Sierra Morena, the only two surviving
populations on the Iberian Peninsula, which have been
isolated from each other for decades.
Specifically, Toni Gabaldón's group at the Centre for Genomic Regulation in Barcelona has compared the Iberian lynx genome with those
of other species, attempting to identify genes that have lost their function because they have remained
isolated and the existence
of a small
population of specimens
of this species.
An iconic example
of the Ice Age megafauna
of North America, the mammoth went extinct soon after humans arrived on the continent — except for
isolated populations.