Diversity Current Events | Diversity News | 2
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Looking beyond biodiversity to explain community invasibility
Most existing experimental and theoretical studies suggest that diversity is an effective barrier to plant invasion. However, these studies may be limited in their generality, because they involve relatively small numbers of species or examine only short time periods. To evaluate how invasions are controlled in more realistic situations, Meiners,... view more... (2004-02-05)
Medicalising sex damages relationships
Overly medical approaches to sex ignore the social and interpersonal dynamics of relationships, argue researchers in this week's BMJ. The medicalisation of sex has resulted in surgery and drugs being used to enhance sexual pleasure, write Graham Hart and Kaye Wellings. Viagra (sildenafil citrate) has become the world's most popular drug ever, and... view more... (2002-04-10)
Bigger horns equal better genes
According to a team of international researchers, mature, male alpine ibex demonstrate a correlation between horn growth and genetic diversity. Past research studies have shown that greater genetic diversity correlates with a greater chance of survival. view more (2007-06-07)
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)
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)
Domestication of Capsicum annuum chile pepper provides insights into crop origin and evolution
Without the process of domestication, humans would still be hunters and gatherers, and modern civilization would look very different. view more (2009-06-22)
Exceptions prove rule of tropical importance in biodiversity
Even a group of shellfish that appear to violate the overarching pattern of global biodiversity actually follows the same biological rules as other marine organisms, confirming a general theory for the spread of life on Earth. view more (2007-11-08)
New study rebuts claims about Icelandic genetic heterogeneity
There has been some controversy in the media and within the scientific research community concerning whether Icelanders are genetically homogenous or heterogeneous relative to other European populations. Following an article published in Annals of Human Genetics in January 2003 by E. 'rnason, who concluded that Icelanders were one of the most... view more... (2003-08-19)
Direct link established between tropical tree and insect diversity
Higher tree species diversity leads directly to higher diversity of leaf-eating insects. view more (2006-07-19)
More silent spring...?
The evocative sounds of some of the world's most remote places - rare birdsong and human languages - are both under threat. New research from the University of East Anglia compares these threats for the first time. view more (2003-05-14)
Coffee cultivation good for diversity in agrarian settlements but not in forests
Coffee shrubs, both in themselves and because they are most often cultivated in the shade of large trees, can have a positive impact on plant and animal diversity in those parts of the landscape that are deforested and dominated by agriculture. view more (2009-02-19)
What makes life go at the tropics?
What causes tropical life to thrive: temperature, or sunlight? The answer is not necessarily "both." According to a study published online this week in PNAS Early Edition, the explosion of species at the tropics has much more to do with warmth than with light. view more (2008-05-28)
Too much water, fertilizer bad for plant diversity
Too much of multiple good things - water or nutrients, for example - may decrease the diversity of plant life in an ecosystem while increasing the productivity of a few species, a UC Irvine scientist has discovered. view more (2007-03-27)
UCSB researcher leads worldwide study on marine fossil diversity
It took a decade of painstaking study, the cooperation of hundreds of researchers, and a database of more than 200,000 fossil records, but John Alroy thinks he's disproved much of the conventional wisdom about the diversity of marine fossils and extinction rates. view more (2008-07-11)
Female mice can identify inbred males by their scent
Scientists at the University of Liverpool have found that female mice avoid mating with inbred males by 'sensing' the diversity of a protein type in their urine. view more (2008-04-21)
Global ocean sampling expedition
In three new metagenomic studies published online in the open-access journal PLoS Biology, Craig Venter and his team take advantage of the vast amount of microbial sequence data collected during their Sorcerer II Global Ocean Sampling (GOS) expedition to reveal an unprecedented level of genetic and protein diversity in marine microbes. view more (2007-03-14)
New research proves single origin of humans in Africa
New research published in the journal Nature (19 July) has proved the single origin of humans theory by combining studies of global genetic variations in humans with skull measurements across the world. view more (2007-07-19)
New global bird map suggests 'hotspots' not a simple key to conservation
The first full map of where the world's birds live reveals their diversity 'hotspots' and will help to focus conservation efforts, according to research published in Nature today (18 August). view more (2005-08-18)
Why are some groups of animals so diverse?
A new study of finger-sized Australian lizards sheds light on one of the most striking yet largely unexplained patterns in nature: why is it that some groups of animals have evolved into hundreds, even thousands of species, while other groups include only a few? view more (2007-09-20)
The Peopling of the Americas: Genetic ancestry influences health
At one time or another most of us wonder where we came from, where our parents or grandparents and their parents came from. view more (2009-08-17)
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