Tag: "immigration" at biology news
Studies Suggest Cold Can Protect Valuable Papers
...you want to preserve forposterity? Ancestors' U.S. immigration
papers? Old letters? The family tree? TheDeclaration of Independence? The Magna Carta? Now, a University of North Carolina at Chapel Hill scientist says histeam's research suggests the best way is to keep them not only dry, but alsocool. A bo...
Building detailed map of human DNA will take more time and resources than previously thought, says Hutch researcher
...isease genes. Since Iceland essentially has had no immigration
since the Vikings landed in theninth century, geneticists widely presumed the DNA of its inhabitants would berelatively undisturbed, free of the genetic "static" commonly seen in moreculturally diverse populations. With less background noise, it was ...
Scientists fear loss of colobus monkey heralds beginning of 'extinction spasm' of many West African species
... also called for steps to reduce or even eliminate immigration
into areas near parks and forest reserves. "Such...ct it can be quite counterproductive by attracting immigration
into the area, increasing populations and thus, pressure on the forest resources. Even in our own co...
Korean Americans at risk for high blood pressure
...et and lifestyle changes that occur as a result of immigration
can contribute to the high prevalence of cardiovas...surance. Due to their relatively short history of immigration
in the United States, many Korean Americans are not well-integrated into the health care system, and...
Study illustrates diversification, speciation in biological "islands"
...ee, of Caribbean lizards to estimate the number of immigration
and speciation events on the islands. "The phylogeny is indispensable," Losos said. "Only with the understanding of evolutionary relationships of the species can we address these sorts of questions. The critical step was the work done in Allan La...
Most eastern North American reserves too small
...ges of at least 1,000 square miles by establishing immigration
corridors and buffer zones....
AAAS speakers report worldwide 'epidemic' of obesity
... in the United States, and discussed the impact of immigration
on Mayan children. While Maya-American children are taller and have longer legs than their Guatemalan counterparts, "an alarming number of Maya-American children exhibit weight problems," said Bogin, who noted that 42 percent of Maya-American childre...
Forest fragmentation and birds
...sink populations can be rescued from extinction by immigration
from the source populations, if the birds disperse accordingly across a given region. Hence, evaluation of trends at a local scale may not reflect their tendency to disperse to other areas and reproduce in other locations. Importantly, however, the...
Amazonian devastation: Common sense quantified to predict disaster
...at current policy initiatives designed to increase immigration
and dramatically expand highway and infrastructure networks in the Brazilian Amazon will have important impacts on deforestation activity. Deforestation will be greatest in relatively seasonal, south-easterly areas of the basin, which are most access...
Emory School of Medicine teams with deCODE Genetics to study link between genes and disease
... British Isles beginning in the ninth century, and immigration
has been very limited since that time. The study of genealogy is a national Icelandic pastime, and family lineages are well characterized and recorded. deCODE employs nearly 600 people at its headquarters facility in Reykjavik, as well as 150 peopl...
Rare form of gene discourages alcohol dependence among Jews
...rivals' alcohol intake and dependency levels after immigration
may reflect "acculturation to Israeli drinking patterns," Hasin proposes. "However," she adds, "other explanations, including a tendency to drink less as we age, cannot be ruled out."...
Down by the river
...owing new plants to grow. Scientists call this an immigration
process. In contrast to extinction processes such...reme disturbances, and environmental stresses, the immigration
process sets the stage for new life. Community composition is driven by immigration. Areas distur...
UNC ecologists find floodplains particularly vulnerable to invasion by exotic plant species
...en space and distributed seeds, which allowed easy immigration
of exotic species. "As flood frequency decreased ...ce as flooding decreases so that opportunities for immigration
and germination are fewer." One central question in ecology is the significance of biological diver...
Europes population has developed new tendency to shrink, Science study reports
...e no immigration. "In reality we expect continued immigration
into Europe, but here we wanted to identify these two mechanisms which we think are new and important insights into the nature of population dynamics. To sharpen the focus on them, we had to eliminate other effects like migration in the calculations,...
Immigration and Travel Issues for Foreign Scientists and Technology Workers
...m., AAAS, the science society, will bring together immigration
professionals to consider the issues of travel for...? What documentation is required under new federal immigration
laws? How do foreign-born employees transition from temporary to permanent work-authorized U.S. stat...
Scientists find gene that protects against potato blight
... more than a million people and sparking a wave of immigration
that had worldwide social consequences. More than 150 years later, Ireland's population has yet to return to pre-famine levels. Prior to the 1990s, chemical fungicides were available in the United States and effectively held the disease at bay. But n...
Research on relative species abundance provides new theoretical foundation
...o shows how Fisher's distribution changes when the immigration
of species into an ecological community is restricted. This is a famous unsolved problem in the Theory of Island Biogeography published by renowned biologists E. O. Wilson and Robert MacArthur 36 years ago. For the past half century, the field of eco...
Mark your calendar for the American Anthropological Association meeting in Chicago Nov. 19-23
...holarly sessions to discuss a range of topics from immigration
and migration, indigenous people, genetics and human variation, globalization and violence, African snakes and how they make you feel, Muslims's fears in the USA, death penalty as a violation of human rights and the plight of American Indians in pris...
New study finds evolutionary diversification in Hawaiian spiders
...ent from the way communities are assembled through immigration
on a large continent. "The Hawaiian Islands are often considered to be so unusual and remote that what happens there cannot be applied to other places," said Gillespie, professor of insect biology, director of the Essig Museum of Entomology at UC...