Species Diversity Current Events | Species Diversity News | 8
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Expanding forests darken the outlook for butterflies, study shows
Changing environmental conditions in the Canadian Rockies are stifling the mating choices of butterflies in the region, say University of Alberta researchers. view more (2005-07-19)
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)
Limited climate tracking in European trees despite 10,000 years of postglacial warmth
The relative roles of environment and history as controls of large-scale species distributions is a crucial issue in biogeography and macroecology. In the forthcoming issue of Ecology Letters Svenning & Skov use bioclimatic modelling to show that among 55 native European tree species, 36 occupy less than 50% of their climatically suitable... view more... (2004-06-10)
Competition between species curbs selfishness?
Animals are in constant competition over procreative resources. The interests of the individual and the population are not necessarily one and the same; aggressive insects may fare well in the mating competition, but eventually the proliferation of aggressive genes will weaken the procreative efficiency of the species. view more (2004-12-20)
First Biodiversity Census of coral reef ecosystems in the NW Hawaiian Islands
As part of the international Census of Marine Life (CoML), a team of world renown scientists will embark on an expedition to explore coral reef biodiversity in the largest fully protected marine area in the world-the Northwestern Hawaiian Islands Marine National Monument. view more (2006-10-11)
Ancient DNA provides clues to the evolution of social behavior
A rare Patagonian rodent known as the colonial tuco-tuco fascinates biologists because it seems to defy all odds. This threatened species has so little genetic diversity that the slightest whiff of climate change or disease should have wiped it off the face of the earth long ago. view more (2006-04-21)
Long-term study shows effect of climate change on animal diversity
Two species of giraffe, several rhinos and five elephant relatives, along with multitudes of rodents, bush pigs, horses, antelope and apes, once inhabited what is now northern Pakistan. view more (2008-09-23)
UT Knoxville professor finds unexpected key to flowering plants' diversity
What began with an off-the-cuff curiosity eventually led Joe Williams to hang from the limbs of a tree 80 feet above the soil of northeastern Australia. view more (2008-07-29)
The prolific orphan trees in the Cameroon forests
The Ntumu (the Beti-Fang), live in the equatorial forest in southern Cameroon, in the north of Gabon and of Equatorial Guinea. They practice a semi-nomadic slash-and-burn form of agriculture. Their farming is highly diversified, mainly of food crops (such as cassava, plantain banana, sweet potato, yam and taro) but they also produce cash crops... view more... (2003-04-29)
New species discovered - Scientists call for woodland management rethink
Evasive research subjects view more (2005-04-19)
Ecosystems with many plant species produce more and survive threats better
Ecosystems containing many different plant species are not only more productive, they are better able to withstand and recover from climate extremes, pests and disease over long periods, according to a new study. view more (2006-06-01)
Multiple genes permit closely related fish species to mix and match their color vision
Vision, like other biological attributes, is shaped by evolution through environmental pressures and demands, and even closely-related species that are in other ways very similar might respond to their particular environments by interpreting the visual world slightly differently, using photoreceptors that are attuned to particular wavelengths of... view more... (2005-10-11)
All eukaryotic kinases share 1 common set of substrates
Kinase mediated phosphorylation is generally recognised as the major regulator of virtually all metabolic activities in eukaryotic cells including proliferation, gene expression, motility, vesicular transport and programmed cell death. view more (2007-08-22)
Russian Red Book - Moscow Is Not Inhabited Only By People
Ksenia Avilova, Senior Research Assistant, Faculty of Biology, Moscow State University, investigates the diversity and quantity of the plant and animal species inhabiting the capital of Russia. According to the latest data the number of higher plants in Moscow makes up 1250 species, including those exotic... view more... (2002-05-17)
Remote sheep population resists genetic drift
A whimsical attempt to establish a herd of mouflon for sport hunting on a remote island in the Indian Ocean 50 years ago has inadvertently created a laboratory for genetic researchers and led to a surprising discovery. view more (2007-03-12)
Folding wings - just the business for insect survival
Just like modern businesses, insects have had to diversify to survive, according to University of York scientist Peter Mayhew. The ability to fold their wings is one device they have adopted over the years as part of the struggle for survival, says Dr Mayhew. And folding wings have given the insects which adopted them - including bugs, beetles,... view more... (2002-05-01)
Ecologists say metabolism accounts for why natural selection favors only some species
Why are some species of plants and animals favored by natural selection? And why does natural selection not favor other species similarly? view more (2008-11-04)
Yeast missing sex genes undergo unexpected sexual reproduction
An emerging form of the pathogenic yeast Candida is able to complete a full sexual cycle in a test tube, even though it's missing the genes for reproduction. view more (2009-05-26)
Mass extinction's cause: 'Sick Earth'
What really caused the largest mass extinction in Earth's history? view more (2006-10-23)
New map of variation in maize genetics holds promise for developing new varieties
A new study of maize has identified thousands of diverse genes in genetically inaccessible portions of the genome. New techniques may allow breeders and researchers to use this genetic variation to identify desirable traits and create new varieties that were not easily possible before. view more (2009-11-20)
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