Sentences with phrase «high human populations»

These parts might not have very high human populations, but they tend to live near the shores, and the local plants and animals can be affected by these rapid changes.

In parts of the tropics and sub-tropics, protected areas are under pressure from forces related to high human populations and rapid land use change.

On average 38 percent of suitable habitat has already been lost to agriculture in this region, where some of the highest human population densities occur in Africa.

Otter researcher Jim Estes of the University of California, Santa Cruz, says «the conclusion that protozoan - caused disease is elevated around areas of freshwater runoff and high human population density is solid.»

The most contaminated samples came from areas with the highest human population density, suggesting that cities were an important source of the lint.

The inefficient use of dogs - conveniently already in areas of high human population (take note, local - food advocates)- should make any good ecologist blush.

Once we got a phone call from a veterinary technician from the Government Veterinary Lab who was working with us concerning a rabid dog in one of the poorest areas with the highest human population density.

Mountain lions and bobcats rarely dwell near the ocean or in areas of high human population density, where sea otter infections are more common.»

Not exact matches

For example, in addition to having higher levels of genetic diversity, populations in Africa tend to have lower amounts of linkage disequilibrium than do populations outside Africa, partly because of the larger size of human populations in Africa over the course of human history and partly because the number of modern humans who left Africa to colonize the rest of the world appears to have been relatively low (Gabriel et al. 2002).

«In a country like India, with a high population density and a high level of poverty, virtually every ecological niche is occupied by some occupational or cultural human group for its sustenance.

(I'd left a public high school with a total population of 1,000 and would later step into an enormous human ant bed crawling with 4,600 students.)

The great issues of our time are moral: the uses of power; wealth and poverty; human rights; the moral quality and character of society; loss of the sense of the common good in tandem with the pampering of private interests; domestic violence; outrageous legal and medical costs in a system of maldistributed services; unprecedented developments in biotechnologies which portend good but risk evil; the violation of public trust by high elected officials and their appointees; the growing militarization of many societies; continued racism; the persistence of hunger and malnutrition; a still exploding population in societies hard put to increase jobs and resources; abortion; euthanasia; care for the environment; the claims of future generations.

Consider a partial list of developments since just World War II: a broad national decline in denominational loyalty, changes in ethnic identity as hyphenated Americans enter the third and subsequent generations after immigration, the great explosion in the number of competing secular colleges and universities, the professionalization of academic disciplines with concomitant professional formation of faculty members during graduate education, the dramatic rise in the percentage of the population who seek higher education, the sharp trend toward seeing education largely in vocational and economic terms, the rise in government regulation and financing, the great increase in the complexity and cost of higher education, the development of a more litigious society, the legal end of in loco parentis, an exponential and accelerating growth in human knowledge, and so on.

Is sustainable authentic development compatible with a high material standard of living as presently defined for all human population?

Black is the original or «normal» skin color for humans — lighter skin colors evolved in the last few tens of thousands of years as populations adapted to higher latitudes.

(1) to accept the ambiguity of such a high number of humans on the planet; (2) to stabilize that population as much as possible, and then (3) to find ways of allowing six to eleven billion people to live on the planet in ways that are ecologically wise.

This population still worshipped gods in high places and shrines; the gods were the baalim, who were responsible for the fertility of the rich land which they inhabited but were also the gods concerned with human fertility.

Using high school level science, explain to us how 4 breeding pair of humans, with 5 members sharing much of the same genetic material, can provide enough genetic diversity for the population to continue.

Charles Human managing director of property specialist HVS Hodges Ward Elliott presented a positive outlook for the capital, prompted by a population increase that is currently higher than that of either New York or Paris.

The second infection that's also been on the rise is Syphilis, particularly amongst populations that are at higher risk to contract Human Immunodeficiency Virus or HIV, such as young men who have sex with men or injection drug using adolescence.

In Africa alone, the continent with the highest fertility rate and lowest use of modern contraceptives, 26 countries will double their population by 2050, according to the U.N. «Fundamentally if you're looking at World Population Day, it is at heart a women's rights issue,» said Roger - Mark DeSouza director of population, environmental security and resilience at the non-partisan policy Wilson Center, based in Washington, D.C. World Population Day is meant to draw attention to the challenges we face with a human population that is constantly growing.

Explaining the rationale for the implementation of policies such as Free Senior High School Education and the restoration of Teacher and Nursing Training allowances despite enormous fiscal challenges, Vice President Bawumia said any nation that seeks to achieve holistic development must necessarily invest in its human capital, «and the President, Nana Addo Dankwa Akufo - Addo, is very committed to the education of every young person in Ghana, because an educated population is a prerequisite for growth.»

«Amazon floodplains and river channels — maintained by seasonal floods — promote nutrient cycling and high biological production, and support diverse biological communities as well as human populations with one of the highest per capita rates of fish consumption,» said Castello.

A high percentage of the human population is infected with the herpes simplex virus and carries the virus in a latent state.

An apparently new Variant of human serum albumin, albumin Naskapi, has been found in high frequency in the Naskapi Indians of Quebec and, in lower frequency, in other North American Indians.The family and population data of the albumin are consistent with its inheritance as a simple autosomal trait Controlled by a gene designated Al Naskapi.

Although considered one of the most successful predators on Earth due to the high kill - rate their cooperative hunting achieves, African wild dog populations are declining due to pressures including habitat loss and human - wildlife conflict.

The first government - funded human genomics research study performed on African soil — aimed at unlocking the unique genetic character of southern African populations — has revealed a high level of genetic diversity.

Instead, intensification — producing more yield per unit of existing farmland — using advanced farming technologies and high - yielding varieties of crops offers a more promising route to feeding a larger and more prosperous human population.

Under this scenario, the new study finds that 4 percent of the South Asian population would experience deadly wet - bulb temperatures exceeding 35 ° C. Approximately 75 percent of the population would experience humid temperatures higher than 31 ° C, which are dangerous for most humans, but rarely reached right now, Pal and colleagues report.

Although the reason why these conditions would spur early technological developments will require further study, the researchers theorize that higher, more concentrated human populations are more likely to develop new ideas.

The land mask colours indicate human habitation, with lighter colours marking areas with high population density.

Skin color varies among human populations and is thought to be under selection, with light skin maximizing vitamin D production at higher latitudes and dark skin providing UV protection in equatorial zones.

While the effects of human activity on the seal population can be detrimental — for example through a high rate of fishing bycatch mortality as observed on Lake Saimaa — a novel conservation method can help the seal population to cope with climate change.

Some populations migrate 2,500 km each autumn from Svalbard to Scotland, yet in the run up to migration they fly for only a few minutes each day — short bursts of flight that perhaps mirror the modern high - intensity training (HIT) regimes human athletes use to boost maximal aerobic capacity.

Their end goal is to identify specific populations of neurons in the fruit fly brain that are necessary for emotion primitives — and whether these functions are conserved in higher organisms, such as mice or even humans.

With the current human population growth, these plants can not sustain such high levels of collection and habitat loss.»

He found higher rates of nest predation in small woodlots near human communities because these areas had higher populations of raccoons (Procyon lotor) and squirrels (Sciurus spp.) and few, if any, large predators, such as cougars and bobcats (Lynx rufus).

With its small population, high costs, and continued dependence on human intervention, the California condor would probably not make Possingham's priority list.

Then again, modern humans may have formed more widespread alliances merely because their population density was higher.

And while human populations are largely adapted to local climates, researchers point to «an increase in mortality risk observed at both high and low temperatures in populations in temperate and cold climates... and tropical and subtropical areas.»

If the migration from Indonesia to Madagascar was «a limited event» which brought only a small number of colonizers in a few voyages, then why does the human population of the island have such a high diversity of maternal and paternal lineages with Indonesian origin?

If that climate scenario is combined with habitat restoration efforts, particularly those aimed at connecting habitats that have been fragmented by human activity, the average population has a much higher probability of survival — about 50 %.

This species faces a high risk of extinction due to its isolation and tiny population size — it could potentially become the first ape species to be wiped out by human activity.

«Clinicians should use as many data points as available to identify and document the presence of malnutrition... A standardized diagnostic approach will also inform the prediction of the human and financial responsibilities and costs associated with the prevention and treatment of undernutrition in this vulnerable population, and help to further ensure the provision of high - quality, cost - effective nutrition care,» the statement reads.

This is consistent with recent findings that AMY2B copy number is highest in modern dog populations originating from geographic regions with prehistoric agrarian societies, and lowest from regions where humans did not rely on agriculture for subsistence34 and supports the claim that the expansion occurred after initial domestication (possibly after the migration of dingoes to Australia 3,500 — 5,000 years ago) 34.

River deltas, low - lying landforms that host critical and diverse ecosystems as well as high concentrations of human population, face an uncertain future.

The model suggests that outbreaks are more likely in urban areas with higher human and mosquito population densities, in years with longer growing seasons, when infected travelers arrive early in the growing season, and when tiger mosquitos have fewer non-human hosts that result in wasted bites.

In 2005, deCODE identified a genetic variant that correlates with higher recombination rate, the first genetic variant ever demonstrated to be under positive evolutionary selection in human populations in real time.

The genetic markers on high - density SNP arrays are carefully chosen to capture (or «tag») most common haplotypes in human populations.

The ability to manage mosquito population growth and associated arboviral transmission to humans requires early recognition of conditions that facilitate high mosquito population density and human biting behavior.