News articles tagged with 'population'
Study of wolves will help scientists predict climate effects on endangered animals
— 2 Dec 2011 10:32 | EnvironmentScientists studying populations of grey wolves in the USA's Yellowstone National Park have developed a way to predict how changes in the environment will impact on the animals' number,…
Through evolution, cavefish have lost sleep
— 9 Apr 2011 11:40 | BiologyCave life is known to favor the evolution of a variety of traits, including blindness and loss of eyes, loss of pigmentation, and changes in metabolism and feeding behaviour. Now researchers…
Climate change is making our environment 'bluer'
— 6 Apr 2011 18:49 | EnvironmentThe 'colour' of our environment is becoming 'bluer,' a change that could have important implications for animals' risk of becoming extinct, ecologists have found. In a major study involving…
World's reef fishes tussling with human overpopulation
— 6 Apr 2011 17:46 | EnvironmentIn an unprecedented collaborative analysis published in the journal PLoS Biology, scientists from 49 nations demonstrated that the ability of reef fish systems to produce goods and…
Leatherback sea turtle nests increasing in Florida
— 6 Apr 2011 17:37 | BiologyThe number of endangered leatherback sea turtle nests at 68 beaches in Florida has increased by 10.2 percent a year since 1979, according to a new Duke University-led study published…
Migrants from Mexico have increased risk of depression and anxiety disorders
— 6 Apr 2011 16:31 | HealthPeople who migrate to the United States from Mexico have a significantly higher risk of developing depressive or anxiety disorders than family members of migrants who remain in Mexico,…
NIH study finds genetic clues to major cause of kidney disease worldwide
— 6 Apr 2011 15:58 | HealthFor the first time, researchers have found five regions in the human genome that increase susceptibility to immunoglobulin A (IgA) nephropathy, a major cause of kidney failure worldwide…
Effects of pneumococcal vaccination program on pneumococcal carriage and invasive disease
— 6 Apr 2011 15:31 | HealthUsing a cross-sectional study, Stefan Flasche and colleagues investigated the effects of the UK pneumococcal vaccination program on serotype-specific carriage and invasive pneumococcal…
The Population Bomb: How we survived it
— 2 Apr 2011 11:07 | HealthWorld population will reach 7 billion this year, prompting new concerns about whether the world will soon face a major population crisis…
When food is scarce, hungry female spiders alter mating preferences
— 2 Apr 2011 10:55 | BiologyNew research from the University of Cincinnati provides food for thought. The research examined how short-term and long-term hunger affected mate selection and aggression in female…