According to research, obese folks have
a less diverse population of gut bacteria relative to normal weight folks.
Often, these animals are deliberately inbred;
a less diverse population of animals means that data obtained from experiments with these animals will be less noisy and easier to interpret, so fewer animals are needed for meaningful results.
«The findings indicate women with PCOS tend to have
less diverse populations of gut bacteria, a trend which appears to be linked to elevated testosterone levels,» said Varykina Thackray, PhD, senior author of the study and associate professor in the Department of Reproductive Medicine at UC San Diego School of Medicine.
Previous studies focused on
less diverse populations.
Not exact matches
They compared fecal samples, loaded with gut microbiome members, from three groups: Amazonian hunter - gatherers and Andean farmers, both living in Peru, and an industrialized
population in the U.S.. Each group possessed distinct microbiomes with varying types of bacteria, but the American
population stood out for having both different and
less diverse critters.
Less genetically diverse populations are less able to adapt to changes, such as disease or the changes to their habitat brought about by global warm
Less genetically
diverse populations are
less able to adapt to changes, such as disease or the changes to their habitat brought about by global warm
less able to adapt to changes, such as disease or the changes to their habitat brought about by global warming.
John Beddington, professor of
population biology at Imperial College, London, says that if fishing continues at today's levels, marine ecosystems will be radically altered, becoming
less biologically
diverse.
The authors, from 13 institutes on four continents, reasoned that if humans were suffering from malaria when they left the African continent, it should be evident in the genetic makeup of parasite
populations in different parts of the world; the theory predicts that parasites farther away from Africa should be
less diverse, just as is the case in humans.
Many scientists believe that disease - causing mutations are easier to find in genetically homogenous
populations, such as Iceland's, whose genomes have
less «noise» than those of more
diverse societies.
While isolated colonies of laboratory animals are susceptible to becoming
less genetically
diverse, Brekke et al.'s findings suggest that diversity is maintained across many different
populations.
According to expert at one point in time, our endemic birds had lost much of their
population then rose back in numbers, meaning that in the actual the gene pool is
less diverse that it used to be, creating a genetic bottle neck.
If they interbreed with the wild fish it can result in a
less genetically
diverse, and therefore
less robust,
population.
«More diversity is probably better than
less, because a
diverse ecosystem is generally more resilient — and diversity in the Western gut is significantly lower than in other,
less - industrialized
populations,» writes Pollan.
Just as some traits (even metabolic traits) run in families so too will they run in
populations, especially within rather small isolated tribal ones (they are
less diverse).
As the grades advance, the student
population becomes
less diverse.
Thirty - two percent of the student
population qualifies for free or reduced - price lunch.45 The median family with children earns $ 102,000, around $ 14,000
less than in Montgomery County.46 However, Anne Arundel County is much
less racially
diverse.
It found that the teacher work force has gotten
less ethnically and racially
diverse, and more female, compared with student
populations.
Not only are American teachers
less diverse than the student
population they serve, but the teaching profession is also
less diverse than the working - age
population in the United States.
In other cases where overall performance is at least average, several states with narrower - than - average achievement gaps serve student
populations that are
less diverse compared to the make - up of the student
population nationally.
With a
population of
less than 1,500 residents, it is known for being small, but also as a
diverse community.
In addition, membership in credit unions has become much
less restrictive, making them available to a larger and more
diverse population.
Researchers are finding that when delicate bacterial
populations in microbiomes are reduced or
less diverse, the risk of disease rises.
«Strategies to maintain adequate diets need to focus on the most vulnerable countries and
populations, and thought must be given to reducing vulnerability to nutrient deficiencies through supporting more
diverse and nutritious diets, enriching the nutritional content of staple crops, and breeding crops
less sensitive to these CO2 effects,» Dr Myers said.
It is a world with continuously increasing global
population, at a rate lower than A2, intermediate levels of economic development, and
less rapid and more
diverse technological change than in the B1 and A1 storylines.
With a
population of
less than 1,500 residents, it is known for being small, but also as a
diverse community.
Research on meditation in
diverse populations of adults has accumulated sufficiently to provide convincing high - level evidence for reproducible benefits of meditation in mental health and pain management.69 — 71 In addition, data suggest that greater levels of mindfulness in adulthood may mitigate some of the negative health effects of adverse childhood experiences.72 The literature in children and youth, however, is
less developed and, although suggestive of benefit, is just beginning to emerge.73 — 76 To provide the highest level of available evidence regarding the specific effect (s) attributable to meditation instruction for children and youth, conclusions in this report are based on findings from RCTs with active control conditions.
The study
population is mixed and is trending to
less diverse as the economy continues to falter among working families.