Sentences with phrase «affect population growth»

Specifically, given the theoretical and empirical relation between energy - use and population growth rates, we ask how the availability of energy is likely to affect population growth through 2050.

His specific research interests include: processes that cause population abundances to fluctuate over time; predicting the extinction risk of rare species; patterns of individual growth in fluctuating environments and how they affect population growth rates; and the effects of current - driven dispersal on marine fish species.

(For a look at how improved health care and medical technologies are affecting population growth worldwide, see our infographic «More Life, Less Death.»)

Not exact matches

Areas that have seen the most population growth in the last decade and a half are also the most affected by drought.

There was no discussion of how an ageing population will affect labour force growth, or productivity growth.

While the assumptions about the future unemployment rate may be affected by policy, the fact is that slower U.S. population growth, coupled with an aging population, place substantial limits on labor force growth, which will leave U.S. GDP growth almost entirely dependent on changes in productivity.

There was no discussion of the need for increased savings and investment to increase productivity growth or how an ageing population will affect savings in the economy.

The weed species and biomass were similar in the two systems; however, with timely removal they did not form large populations or affect the growth of the strawberries.

«The population growth is affecting the infrastructure, sectors and the environments, but it has been established by study that «if they plan the family very well, it can curb or control the growth of the population and we can reduce Nigeria's population,» Fayehun said.

While there has been some growth, downtown Albany's residential population also affected the business, Metzger said.

The State of the World Population 2009 report says that population levels will affect countries» abilities to adapt to the immediate effects of climate change, although the longer - term influence of population growth on climate change will depend on future economic, technological and consumption trends.

However, because of population growth, the numbers of people affected increased substantially.

Fifteen percent of the affected populations at two sites bore brown - black growths, some of them raised and almost scablike.

In predicting how climate will affect irrigated crop yields in the future, the researchers also consider factors such as population and economic growth, as well as competing demands for water from various socioeconomic sectors, which are themselves projected to change as the climate warms.

1989 (left): For more than 24 years, endocrinologists Jaime Guevara - Aguirre (top left) and Arlan Rosenbloom (top right) have tracked a population of Ecuadorians with a rare genetic defect affecting the body's response to growth hormone.

To simulate such highly variable conditions and how they affect the probability of finches fledging from a fly - infested nest and thus population growth, the researchers used data from five years — 2008, 2009, 2010, 2012 and 2013.

While it was beyond the scope of this report, analysis of population growth also takes into account how rapid urbanization would change the face of human settlements and affect their ability to adapt to climate change.

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

It is used to treat Adult Growth Hormone Disorder (AGHD), a real medical condition that is affecting over 50 % of today's American population, and a physician's prescription is required to take HGH.

Those with celiac disease, the most well - known gluten - sensitivity condition, suffer with inflammation and damage to the lining of the small intestine resulting in diarrhea, malabsorption and nutritional deficiencies.28, 29 Gluten troubles have been linked to failure to thrive in infants and delayed growth in older children.30 Research reveals that non-celiac gluten sensitivity, or immune reactions to gluten, may affect as many as 90 million Americans.28 Kenneth Fine, MD, director of the Intestinal Health Institute in Dallas, Texas believes 60 - 70 percent of the population possesses the genes that make a person susceptible to developing gluten sensitivity.31

The negative effects seem to lie in the capacity of some foods / nutrients to stimulate proliferative pathways that in turn stimulate development of acne — suspect foods include those with a high glycaemic load and milk.11, 43, 44 Other evidence comes from several studies reporting that the prevalence of acne varies significantly between different populations and is substantially lower in non-Westernized populations that follow traditional diets, 45 a common factor among these traditional diets being a low glycaemic load.46 Various studies have provided evidence that high - glycaemic - load diets are implicated in the aetiology of acne through their capacity to stimulate insulin, androgen bioavailability and insulin - like growth factor - 1 (IGF - 1) activity, whereas the beneficial effects of low - glycaemic - load diets, apart from weight and blood glucose levels, also include improved skin quality.44 The clinical and experimental evidence does in fact suggest ways in which insulin can increase androgen production and affect via induction of steroidogenic enzymes, 47 the secretion by the pituitary gland of gonadotropin - releasing hormone and the production of sex hormone - binding globulin.48 Insulin is also able to reduce serum levels of IGF - binding protein - 1 increasing the effect of IGF - 1.49 These insulin - mediated actions can therefore influence diverse factors that underlie the development of acne such as:

However, it's unclear how much the area's rapid growth in population and new housing starts will affect mortgage affordability going forward.

They are currently undertaking a study that aims to explore differences in intestinal bacterial populations among epileptic dogs and healthy housemates, and evaluate how antiepileptic drugs affect the growth rates of intestinal bacteria.

Interestingly, the most recent 3500 years of prehistory was a time of Native American population growth and sociopolitical changes, perhaps increased human - induced fire, as well as a period of climatic instability [41,42], both of which could have affected contemporary levels of mtDNA diversity.

These fragments are then transplanted to Molasses Reef and other affected reefs to spur growth of healthy corals and restore the breeding population.

Note that any net change in biomass (whether trees, or cows or even humans) does affect atmospheric CO2, but the direct impact of human population growth is tiny even though our indirect effects have been huge.

IPCC commentary notes that even a metre of sea level rise (plus population growth over the intervening period) are likely to affect between 200 and 450 million people in the Asia Pacific region alone.

This question arises when we see our world as a connected system and how the exercise of consumption or unfettered population growth affects other parts of the system (e.g. your mention of human confiscation of up to 40 % of solar input to photosynthesis must surely be putting extreme pressure on other species).

To ease global food crisis, rice with submergence tolerance is needed: -2007 Bangladesh Tista / Jamuna Rivers flooded million hectares up to 3 weeks; cyclone Nargis flooded 1.75 M Irawaddy - grain supply affected by population growth, diversion of grain to biofuels and to livestock as more people eat meat - funding contraints on R&D - crippled developing world extension systems

In the Northeast, «Communities are affected by heat waves, more extreme precipitation events, and coastal flooding due to sea level rise and storm surge,» for example, while in the Southeast and Caribbean, «Decreased water availability, exacerbated by population growth and land - use change, causes increased competition for water.

This must include all anthropogenic affects including changes in agriculture and economic growth with growing populations.

It is therefore essential to understand how energy use patterns affect the growth and structure of the global human population [1].

This paper finds that under a wide range of assumptions about future growth in wealth and population, and about the effects of human - caused climate change, in every case there is far greater potential to affect future losses by focusing attention on the societal conditions that generate vulnerability to losses.

Underlying factors affecting forest conversion include population growth, agricultural development, land tenure, governance of land - use changes, changing markets, technological improvements, and active policy interventions.

The developed world will be affected, but the developing world will be hurt even more, by increasing aridity, greater temperatures and faster population growth.

This new study suggests that stable effective governance, sustained economic growth and reduced population growth are essential if conflict and forced displacement of people are to be reduced in Africa, which will be severally affected by climate change.

Their sources include church records, commissions of inquiries into glacier disasters, taxes on farms affected by glaciers, town records, population records, illustrations and lithographs, observations by travellers and scientists, scientific papers, historic articles on glaciers from contemporary sources in English, French, German and Italian, correlation with wine and grain harvest dates, alpine clubs, mountaineers and tree line / plant growth records amongst other sources.

Including samples from different biological - growth populations in one RCS run could bias the resultant chronologies thus affecting interpretation of climate made from the resulting chronologies., HOwever, opportunities to test the data for the existence of different populations are limited.,,

Including samples from different «biological growth» populations in one RCS run could bias the resulting chronologies (e.g. TRW in Figure 8C) thus affecting interpretations of climate made from resulting chronologies.

Future fire regimes will be less affected by global warming than by other global changes, in particular population growth, because over 95 % of ignitions are due to humans.

Helama et al. (2004a, 2005) have shown that such a major increase in population density could affect the empirically determined growth curves used in normal RCS standardization.

Aggregate population growth, as well as redistribution of the population across larger US regions, strongly affects outcomes whereas smaller - scale spatial patterns of population change have smaller effects.

Sea ice is melting, which is opening up the Northwest Passage and other routes to shipping, and as the tundra also warms, the Arctic becomes more accessible to development and human population growth, which will affect the people who already live there, particularly indigenous populations.

US experience is also that even when judicial sentencing discretion is severely restricted, the growth of the prison population can still be affected by a variety of factors.

At a macro level, purchasing power is affected by population growth, income growth, credit expansion and investor inflows.