"Population changes" refers to the fluctuations or variations in the number of people living in a specific area or region over a certain period of time. It indicates how the size of a population may increase or decrease due to factors like births, deaths, migration, or any other demographic shifts.
Full definition
As fish
populations change in response to these warmer waters, mother fur seals may have a harder time finding the food they need to nourish themselves and their pups.
More data will be needed to fill in the geographical gaps and study how mosquito
populations change over time and in response to specific control interventions.
In order to find the housing markets on the rise, we looked at data
on population change, housing unit change, median income change and median home value change.
Case studies provide lessons from three leading education improvement efforts that are tackling the problem of how to improve rural education in the face of challenges such
as population change and financial constraints.
The relationship
between population change and economic development is as yet rather poorly understood, the assertions of certain bold professionals to the contrary notwithstanding.
As
student populations change, state and local policies evolve and academic demands shift in focus, the report recommends that school districts regularly design new services and evaluate the effectiveness of existing ones.
Our dog
population changes daily, and we never know the type of dog we are getting until he or she arrives on our doorstep.
Currently some of the important ecological factors needed to
understand population change are not recorded on a regular or systematic basis.
Developing new and appropriate remote sensing indices of pertinent environmental factors is therefore important, if we are to do more than simple
measure population change.
But will the stress on the planet of producing food for the growing
human population change the way we view the ownership of domestic animals that serve only as companions?
Established homeowners may find that property values and coverage needs are changing as new opportunities and
population changes take place in the community.
Contrary to previous findings, the new results reveal that the rate
of population change has grown much more rapidly than the expansion of urban land.
However the ability to actually do so is limited because we can not accurately
predict population change, economic change, technological development, and other relevant characteristics of future human activity.
However, as the impacts of population on yield and food demand are highly complex, we do not include avoided land conversion emissions associated
with population change in the final emissions calculations for those solutions.
Senate, state Assembly and congressional lines are redrawn every 10 years to account
for population changes recorded by the census.
But the state's political districts must be redrawn this year to
reflect population changes identified in the 2010 census, and a proposal under consideration by the Legislature would put Mr. Grisanti in an all - Erie County district.
A 2014 study
by population change think tank International Longevity Centre estimates 1.5 million men will be living alone in England and Wales by 2030.
It pays special attention to the importance of migration for current and
future population changes across the continent, and to newly developed alternative indicators of population aging developed at IIASA.
Analyses of ancient DNA from prehistoric humans paint a picture of
dramatic population change in Europe from 45,000 to 7,000 years ago, according to a new study led by Howard Hughes Medical...
Israel decided to run in the district after Rep. Gary Ackerman's (D - Bayside) seat was eliminated due to redistricting, which shifts congressional lines in response to
population changes identified in the U.S. census.
Three hundred eighty - eight counties had net negative international migration, while the Census Bureau estimates that 308 counties had zero
net population change from international migration.
The US Census Bureau recently released its population estimates for each of the 50 states and Washington, DC, for 2016 and how
populations changed from July 1, 2015, to July 1, 2016.
By monitoring amphibian populations in the Chicago region, we will be able to
detect population changes before it is too late as well as assess the effects of management regimes on amphibians.
Rolf Ims and colleagues at the University of Tromsø trapped Norway lemmings and grey red - backed voles at 109 locations in north - east Norway to monitor
population changes before, during and after a lemming population outbreak.
The research is unique in linking
local population changes for multiple bird species to broad - scale climate changes, says Beatrice Van Horne, a wildlife researcher at the U.S. Forest Service in Arlington, Virginia: «Things that happen at a large scale are hard to see because local variance often confuses us.
But although both climate and
population change drive this, the population component has so far been overlooked, says Jones.
«In East Asia there are long established theories of how
Neolithic populations changed the landscape so profoundly that monsoons stopped penetrating so far inland,» explains Wright, also noting in his paper that evidence of human - driven ecological and climatic change has been documented in Europe, North America and New Zealand.
Linda Nazareth is the principal of Relentless Economics and senior fellow for economics and
population change at the Macdonald Laurier Institute.
Surveys need to be part of a club's long - range planning:
Because populations change over time, comprehensive surveys should be conducted about once a decade.
In late January, the state body in charge of redrawing political districts to
accommodate population change make some changes to the 16th Senate District, most notably eliminating Staviskyâ $ ™ s Beechhurst home and drawing it into the domain of Avella.
A single drought can change a population
Overall, about 30 % of the bacterial types found in the intestine showed dramatic
population changes after a course of ciprofloxacin.
In addition to showing the estimated
total population change in those areas between July 1, 2016 and July 1, 2017, the Census Bureau also included a breakdown of the components of that change, including net international migration, or the number of immigrants from other countries moving into a county minus the number of people leaving that county for another country.