Casual observers are unlikely to notice an obvious drop in monarch numbers this spring, in part because of the natural variability in
population size from year to year.
Nest counts are the main source of demographic data for sea turtles, but it's hard to estimate
population size from these counts.
Nest counts are the main source of demographic data for sea turtles, but it's hard to estimate
population size from these counts.
«You see a rapid increase in
population size from about 18,000 years ago, just as the climate began warming up after the last Ice Age,» says lead author Rebecca Dew.
Not exact matches
The forecasts derive
from purely non-athletic data:
population size, income per capita, climate, political structure.
The
size of the private prison
population grew 90 percent
from 1999 — 2014, according to the Bureau of Justice Statistics.
(Washington, D.C.: Committee on Education and the Workforce, February, 13, 2002), http://archives.republicans.edlabor.house.gov/archive/hearings/107th/eer/enronthree21302/kruse.htm Another study comparing a matched sample of ESOP versus non-ESOP firms in with similar industries and workforce
sizes among closely held companies, again, using
population data on all available US DOL data followed the ESOP firms before and after their adoption of the ESOP
from 1988 to 1998 along with the matched firms and found that 20 % of the ESOP firms had a defined benefit plan before adopting their ESOP, and 10 years later, after adopting their ESOP, they had defined benefit plans five times more than non-ESOP firms), 33.3 % of ESOP firms had a 401 (k) plan before adopting their ESOP with 52.4 % 10 years later (five times more than non-ESOP firms), and 35.7 % of ESOP firms had a deferred profit - sharing plan before adopting their ESOP with 51.2 % 10 years later (five times more than non-ESOP firms).
Acsenda follows a quarterly system and enjoys small class
sizes with a diverse international student
population from over -LSB-...]
«We lost some momentum toward the end of 2013
from disappointing job growth and limited inventory, but we ended with a year that was close to normal given the
size of our
population,» said Lawrence Yun, NAR chief economist.
The geographic areas that CFs serve vary in
size from entire states or regions of a state (e.g. Southeastern Texas) to major metropolitan cities like New York City to rural counties with
populations less than 2,500.
Comparing the
sizes of the believer
population and the
sizes of the atheist
population, I pray that the atheist women cease and desist
from abortions.
Kennedy: «I'm disappointed with the addition of the 63rd Senate seat, besides adding to the cost of government, it was put in a place that has no impact on western New York and quite frankly has no impact on the
population shift in New York state and if there was going to be an additional seat added that despite the fact that I disagree with you that the Constitution was in fact violated and you say that it was not violated — the fact that this additional seat adding to the cost and
size of government was added to a place in the Capital Region rather than a place where distinctly the
population grew down in New York City I believe was based upon the fact that had an additional district been added in the city where the
population shift had come
from it would have included that seat being an additional minority seat and that is why it was put up in the Capital Region and rather than in the New York City area.
Rikers has come under scrutiny
from federal law enforcement over the treatment of inmates as well as the
size of the inmate
population there.
The mayor's plan aims to reduce the city's inmate
population to 5,000 detainees
from its current
size of about 9,400.
The
size of the House of Commons remained at 658, there were still «pocket boroughs» and the electorate only increased
from 478,000 to 813,000 out of a total
population of 24 million.
The figures were calculated
from a UK national figure of # 29 million a year and are based on the
population size and child poverty rate within each local authority area.
Each jurisdiction requesting or requiring homeless assistance
from the state will be asked to design a strategic plan we call the Continuum of Care, which assesses the
size and needs of each sub group within the homeless
population and identifies exactly what they need.
Tell me why we must have three senators
from every state of the federation, isn't that just based on some defined federal character principle and not
population size or merit?
From health care to clean water, Hockfield noted, «The way we are currently providing ourselves with all the necessities of life is insufficient to meet the challenges of that
size population.»
TruePrime - mediated circulating tumor DNA amplification specifically selects the larger, more cancer - specific DNA fragment -
size population from human plasma.
The invariance likely results
from either a recent selective sweep, a recent origin for modern Homo sapiens, recurrent male
population bottlenecks, or historically small effective male
population sizes.
In 2012, research by FFI and partners led to the species being formally designated as critically endangered due to its small
population size and threats
from hunting and habitat loss.
Led by postdoctoral researcher Dr Violeta Simon - Porcar, they measured the plant's genome
size and surveyed 30
populations of monkeyflowers
from Shetland and across the United Kingdom.
Deaths
from war have also been on a steady slide relative to the
size of the
population: War killed about 2 percent of people in the 17th century, but only 0.7 percent in the 20th century.
Indeed, if land managers in Africa were as well funded as Yellowstone National Park, at around $ 4,100 per square kilometer, they could afford to manage the average unfenced lion
population at around two - thirds its potential
size, a step up
from the current status quo.
They extrapolated the overall
size of the island's
population from the number of orangutan nests observed throughout the species» range in Borneo.
If such
populations are prevented
from emigrating, the
populations might again increase in
size, but then some other limiting factor manifests itself.
To estimate changes in the
size of the orangutan
population over time, Voigt, along with Serge Wich
from Liverpool John Moores University in the UK and their colleagues representing 38 international institutions, compiled field surveys conducted
from 1999 to 2015.
Population movement within Greater Montreal (
from suburbs to city centre, city centre to suburbs, and between suburbs) impacts local
population size, but the age structure in the central city does not seem to be affected.
DNA samples taken
from grizzly bear hair may help resolve a bitter dispute over the
size of the bear
population in and around Wyoming's Yellowstone National Park.
Most estimates of historic whale
population size have been extrapolated
from old whaling figures, but this method is often very inaccurate, argues marine biologist Steve Palumbi of Stanford University's Hopkins Marine Station in California, US.
This explains the decline in the hatchery
population's average egg
size from 0.27 grams in 1988 to 0.20 grams in 2001, they say.
The sterilizations are «not to control the coyote
population size... it's purely to keep their DNA
from being passed to a red wolf offspring,» says ecologist Eric Gese of Utah State University, Logan, a lead author of the new study and a member of the panel overseeing red wolf recovery efforts.
«We have often underestimated the pristine
population size of marine species,» agrees oceanographer Craig Smith
from the University of Hawaii in Manoa.
The problem is the strong momentum
from past high birth rates, which would sustain
population size even under Bradshaw and Brook's extreme scenarios.
As for how many people the planet can sustain, the first such estimate came
from microbiologist Anton van Leeuwenhoek who calculated roughly 13.4 billion people back in 1679, based on the
population density of his native Holland and its
size relative to the rest of the globe.
Using only the DNA
from sloughed - off cells floating in the ocean, scientists have been able to determine the
population size and genetic properties of one of the world's largest and most mysterious animals: the whale shark.
If lots of plants
from one species grow in the same place, fungi quickly cut their
population down to
size, levelling the playing field to give rarer species a fighting chance.
«Our study suggests that the cumulative survival
from hatchling to maturity, which may take 30 years, combined with present - day climate effects on mature females, has a greater influence on annual nesting
population size than does the exclusive impact of survival during the first year of life as hatchlings,» Saba said.
Dr John Beier, co-author of the research
from the University of Miami, said: «The presence or absence of Prosopis juliflora in villages has a significant influence on the
size of the mosquito
population in general, on their species composition, on the sugar feeding status and, the age structure of female
populations.
They tested multiple variables, analyzing how island
size, distance
from the mainland, maximum sea depth between the mainland and the islands, and latitude relate to body
size in the treeshrew
populations.
In order to determine treeshrew body
size from populations on the Malay Peninsula and 13 offshore islands, the researchers measured 260 specimens collected over the past 122 years and housed in six natural history museums in Europe and North America.
Support comes
from data on a range of organisms, which show an inverse relationship between mutation rate and ancient
population size.
A new study
from The Condor: Ornithological Applications provides the first direct estimates of the
population size and annual survival of young birds in Oahu's Laysan Albatross
population, giving important new insights into the demographics of these «prebreeders.»
Rather than searching for and counting each individual nest, researchers recorded how many oystercatchers they observed within suitable nesting habitat and then modeled the
size of the breeding
population from this data.
The
size of the study and the use of nationwide registry data of unselected
populations from Denmark and Sweden allowed adequately powered analyses that are likely generalizable,» the authors write.
Estimates of the
population size at its nadir range
from 30,000 to 200,000.
«We do not have at the present time an analysis to tell us what would be an appropriate
size of the
population of chimpanzees that would need to be kept on hand should the need arise
from some sort of new pandemic for their use,» said Collins.
The paper reviews
population sizes and trends over time, if known, for each group, ranging
from millions of ringed seals to fewer than a hundred beluga whales in Northern Canada's Ungava Bay.
«The assumption
from past research has been that cities of all
sizes will eventually decline in density, with greater amounts of urban expansion than
population growth.