Sentences with phrase «change in population»

That year many schools went through a dramatic change in population as schools returned to primarily serving neighborhood students.

But that doesn't account for changes in the population.

Overall, 30 % of the bacterial types showed dramatic changes in their population.

Rather, the differences among these scenarios are due to different assumptions about changes in population, rate of adoption of new technologies, economic growth, and other factors.

Changes in elementary and secondary school enrollment are largely reflective of demographic changes in the population.

The evolution of these species is governed by a variety of factors that are difficult to predict, including changes in population, energy use, energy sources and emissions.

In some cases, the counts agreed with known changes in a population.

Such a drastic change in population has been a major source of concern in the online community.

Its survival has improved as winters have become warmer... in other words, climate - driven selection has led to an evolutionary change in the population.

Two wheeler insurance is advisable as the uncertainties on roads are increasing with robust change in population and number of vehicles on road.

The reason why Montana car insurance rates vary between zip codes is because of changes in population densities, unemployment data, poverty statistics, median income levels, crime rates, the percentage of uninsured drivers on the roads, and other factors that affect car insurance rates from one zip code to the next.

This project includes a component to measure biodiversity success, such as changes in the population of Cerulean Warbler and Gorgeted Wood - quail.

• By presenting certain data only in aggregate form, AAFRC's reports do not take into account significant changes in population and individual taxes.

Labour's shadow communities secretary, John Denham, said: «The fund helped areas which saw rapid changes in population from migration.

Although he carefully denied (as social scientists do) that he was making predictions, he wrote that «we may expect these gradual changes in population composition to encourage many, or most, of the following developments.»

Some experiments were considered quirky by 19th century standards, but the work provided data supporting Darwin's notions about trait variability in a population and how natural selection drives changes in populations over time.

Rises may also reflect changes in the population of students tested more than particular school improvement strategies.

Hertel and doctoral student Uris Baldos developed a combination of economic models — one that captures the main drivers of crop supply and demand and another that assesses food security based on caloric consumption — to predict how global food security from 2006 to 2050 could be affected by changes in population, income, bioenergy, agricultural productivity and climate.

Economic damages of tropical storms and hurricanes in the US, as above, but normalized to take into account changes in population and wealth.

As a result, understanding changes in population size for social species — several of which, such as African wild dogs and southern resident killer whales, are endangered — requires understanding of what goes on within groups and how individuals fare when they strike out on their own.

Students brainstorm changes to local wildlife populations and use historical bird species data to track changes in populations over time.

It's easy for politicians to ignore how rapid changes in population can cause localised pressure on services, and that employers can drive down wages when the workforce expands rapidly.

Attendees gained insight on changes in population and demographics, foreign investments and consumer trends from industry insiders.

The analysis uncovered major changes in population growth; with the exception of wolves, all species experienced a drop in population growth rates immediately following the collapse, and three species — wild boar, moose, and brown bears — exhibited significant reductions in population growth throughout the decade following the collapse, with declines evident in 85 % or more of the study regions.

First, we illustrate the historically unique scale of current changes in population growth, poverty alleviation, and urbanization and present projections of these phenomena into the future.

Changes in these populations affect others.

Such changes in populations of certain animal groups can upset the balance of food webs.

For insects, it could take only a couple of years to see a desired change in the population at large, while slower - reproducing organisms would require much longer.

Population growth is a factor, but the largest plausible changes in population expected this century make little difference to the total; we have two far more urgent problems reflected in these numbers:

SSP5 assumes a world with rapid economic growth as opposed to relatively small changes in population (van Vuuren and Carter 2014).

And the whales are beginning to feed at various depths as well as along the sea floor, a shift that may have to do with changes in the population densities of their prey.

Dakin found that changes in the population seen in their shelter required matching changes in the organization.

Macroevolution posed a problem to Darwin because his principle of descent with modification predicts gradual transitions between small - scale adaptive changes in populations and these larger - scale phenomena, yet there is little evidence for such transitions in nature.

When AAFRC announces charitable giving according to its «use» categories, it does so in aggregate form, without acknowledging changes in population or the amount of taxes paid.

Of course, quick changes in population can have an effect of queues in doctor's surgeries and at hospitals — but the fact is that our health service would be in dire straits if EU nationals weren't treating our sick and frail every day.

«This week immigration figures revealed that one in nine people living in Britain was born overseas, highlighting a significant change in population make - up under Labour.»

«Still, the greatest strength of our model is how the queries being used to describe influenza trends are changing over time as search patterns change in the population or the model occasional underperforms due to false - positive queries.»

Demographers habitually take the long view, because subtle changes in population trends may take 50 years or more to register statistically.

«There was a sudden change in the population of Britain,» says Reich.

When European Americans arrived in the area 150 years ago, the subsequent growth and change in population severely affected the ecosystems.

The paper maps passenger pigeon genetic data to a published genome from the Rock dove, Columba livia, and uses these data to infer changes in their population size through time.

To determine the length of time required for the two states to interconvert we purified populations V+S + and V − S + cells and examined the extent to which the original distribution was re-established and observed significant changes in both populations within 24 h of plating (Figure 7B).

In Russia are living different people from different places, therefore change in population is evident.

6) Changes in population interrelate to production output of technology due to economies of scale.

Projections are derived using calculations that replicate plausible future changes in a population as a result of fertility, mortality and migration.