Most Viewed Diversity Current Events | Diversity News
|
| Page
1 of
12 |
237 Results |
|
|
|
Sort By:
Relevance | Date |
Mean Population Size Increases with Diversity
A long-standing debate in ecology has been the effect of diversity on the temporal stability of biological systems. Ecological theory predicts that the stability of populations should decline as community diversity increases, in part, because population size is assumed to decline with community richness. In the February issue of Ecology Letters,... view more... (2003-01-28)
Study: Rain forest insects eat no more tree species than temperate counterparts
A study initiated by University of Minnesota plant biologist George Weiblen has confirmed what biologists since Darwin have suspected-that the vast number of tree species in rain forests accounts for the equally vast number of plant-eating species of insects. view more (2006-08-24)
Hermaphroditic plants have genetic advantage in areas where extinctions are frequent
In one of the first studies to empirically compare the reproductive success of hermaphrodites and male and female populations, biologists from the University of Oxford make use of the rare and extreme sexual diversity displayed in a species of European weed to test the hypothesis that hermaphrodites have been selected in regions with frequent... view more... (2006-02-22)
Why some people are more attractive than others
Researchers believe they have solved a mystery that has puzzled evolutionary scientists for years ... if 'good' genes spread through the population, why are individuals so different? view more (2007-03-28)
Meteor no longer prime suspect in great extinction
The greatest mass extinction in Earth's history also may have been one of the slowest, according to a study that casts further doubt on the extinction-by-meteor theory. view more (2007-10-25)
Biodiversity promotes evolutionary change
Evolutionary biologists at the University of East Anglia have discovered a new link between biodiversity and the evolution of new species. view more (2005-04-18)
Underdogs in the understory: Study suggests nature favors rarer trees
A study of seven tropical forests around the world has revealed that nature encourages biodiversity by favoring the growth of less common trees. view more (2006-01-30)
Fossil Patagonian plants show high insect feeding diversity 52 million years ago
South America has the most biodiversity of any major region today and according to an international team of researchers, that biodiversity began at least 52 million years ago. view more (2005-06-16)
Taking evolution's temperature: Researchers pinpoint the energy it takes to make a species
Writing this week in the Proceedings of the National Academy of Sciences, scientists say higher temperatures near the equator speed up the metabolisms of the inhabitants, fueling genetic changes that actually lead to the creation of new species. view more (2006-06-01)
Ecology Drives The Worldwide Distribution Of Human Diseases
Mounting evidence suggests that ecological and climatic conditions influence the emergence, spread, and recurrence of infectious diseases. Global climate change is likely to aggravate climate-sensitive diseases in unpredictable ways. Increasingly, public health programs aimed at preventing and controlling disease outbreaks are considering aspects... view more... (2004-06-09)
Scientists discover interplay between genes and viruses in tiny ocean plankton
New evidence from open-sea experiments shows there's a constant shuffling of genetic material going on among the ocean's tiny plankton. It happens via ocean-dwelling viruses, scientists report this week in the journal Science. view more (2006-03-27)
RNA splicing occurs in nerve-cell dendrites
Researchers at the University of Pennsylvania School of Medicine have discovered that nerve-cell dendrites have the capacity to splice messenger RNA (pre-mRNA), a process once believed to only take place in the nucleus of cells. view more (2005-11-08)
Chimpanzee study reveals genome variation hotspots
Researchers believe that dynamic regions of the human genome - "hotspots" in terms of duplications and deletions - are potentially involved in the rapid evolution of morphological and behavioral characteristics that are genetically determined. view more (2006-05-16)
Heterosis in populations in nature of a domesticated plant
Few studies quantify evolutionary processes in populations of domesticated plants in traditional farming systems. In February's Ecology Letters, Pujol, David and McKey show that these systems offer unusual opportunities for studying microevolution. view more (2005-02-08)
Deep-sea species' loss could lead to oceans' collapse, study suggests
The loss of deep-sea species poses a severe threat to the future of the oceans, suggests a new report publishing early online on December 27th and in the January 8th issue of Current Biology, a publication of Cell Press. view more (2007-12-28)
Scientists discover global pattern of big fish diversity in open oceans
A new study released in Science (via Science Express) on July 28th reveals a striking downward trend in the diversity of fish in the open ocean - the largest and least known part of our planet. view more (2005-07-29)
Organic nitrogen gives new clue to biodiversity
Scientists have found that organic nitrogen is more important for plant growth than previously thought and could contribute to maintaining diversity in grasslands. view more (2006-04-12)
New research finds surveys of larval-stage organisms effective for measuring marine biodiversity
There is a push to document the biodiversity of the world within 25 years. However, the magnitude of this challenge is not well known, especially when it comes to vast and often inaccessible marine environments. view more (2006-05-15)
New study explores patterns in species diversity and genetic diversity
As scientists, conservationists, and policy-makers wrestle with how to balance development with maintaining biodiversity, it's important to understand what controls patterns of biodiversity and how the biodiversity of a system will respond to different environmental scenarios. view more (2005-07-27)
Seeing the forest and the trees
With human emissions of carbon dioxide on the rise, there is growing interest in maintaining the Earth's natural mechanisms that absorb and store carbon. view more (2005-10-24)
|
|
| Page
1 of
12 |
237 Results |
|
|
|
Sort By:
Relevance | Date |
|
