Sentences with phrase «migration rates up»
Then, CI and NI act in synergy and reach high critical migration rates up to 17 % for both isolating mechanisms.
http://journals.plos.org/ Not exact matches
European Eel The unsustainable harvest rates of European eel and diminished migration (because of dam construction around Europe) add up to a decline of at least 80 percent of the population since 1968.
In other words, dominant incompatibilities persist up to higher critical migration rates than codominant and recessive NI.
That migration rate is not fast enough to keep up with the current rate of movement of a given temperature zone, which has reached about 25 miles (40 kilometers) per decade in the period 1975 to 2005, Hanson and co-authors write in the current issue of the journal Proceedings of the National Academy of Sciences.
Exposure to boiling water increases the rate of BPA migration by up to fifty - five fold.7
Though anecdotal reports in California said teachers from disadvantaged schools fled when new positions opened up in other schools when class sizes were reduced, what the follow - up studies show is that after rising temporarily in all schools, teacher migration rates fell dramatically to much lower levels than before, most sharply in schools with large numbers of poor students.
While reasons for the declines are attributed to lower birth rates, outward migration from the city and the growth of charter schools, the board's Committee of the Whole, chaired by Steve Zimmer, has taken up the issue to make LA Unified schools more appealing to families.
But in this case, the country's migration west followed a rise in oil prices, fuelling a construction boom that helped drive up median incomes and drive down poverty rates.
Actually, there are scientists who have presented studies showing that TNR decreases colony size — i.e., showing that in - migration does not make up for the reduced reproductive rate.
Similar negative effects occur with worsening air pollution — higher levels of ground - level ozone smog and other pollutants that increase with warmer temperatures have been directly linked with increased rates of respiratory and cardiovascular disease — food production and safety — warmer temperatures and varying rainfall patterns mess up staple crop yields and aid the migration and breeding of pests that can devastate crops — flooding — as rising sea levels make coastal areas and densely - populated river deltas more susceptible to storm surges and flooding that result from severe weather — and wildfires, which can be ancillary to increased heat waves and are also responsible for poor air quality (not to mention burning people's homes and crops).
The length of the growing season in interior Alaska has increased 45 % over the last century7 and that trend is projected to continue.8 This could improve conditions for agriculture where moisture is adequate, but will reduce water storage and increase the risks of more extensive wildfire and insect outbreaks across much of Alaska.9, 10 Changes in dates of snowmelt and freeze - up would influence seasonal migration of birds and other animals, increase the likelihood and rate of northerly range expansion of native and non-native species, alter the habitats of both ecologically important and endangered species, and affect ocean currents.11
«The most important thing is that it shows that the rate of migration is lower than recent and anticipated warming,» said Dr. Oechel, «and it implies that if there's a continual trend at a rate similar to this, species won't be able to keep up with their new thermal zones as they move higher and higher.»
That migration rate is not fast enough to keep up with the current rate of movement of a given temperature zone, which has reached about 25 miles (40 kilometers) per decade in the period 1975 to 2005, Hanson and co-authors write in the current issue of the journal Proceedings of the National Academy of Sciences.
Given their Microsoft migration rates (that we will come to later) it may be some time before any pick up their first pins.
MANHEIMER: Yes; according to the 2000 census, the rate of interstate migration within the five - year period that led up to that census was 4.6 percent of those 60 and older.