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Predicting the species diversity of large herbivores in nature reserves
The number of species of large herbivores that can live in a nature reserve can be easily calculated using just rainfall and soil fertility data. The Wageningen ecologist Dr Han Olff can use this to indicate on a worldwide basis where nature reserves that protect large mammals are needed. On a map of the world, the researcher from Wageningen... view more... (2002-02-19)
Genes from the father facilitate the formation of new species
The two closely related bird species, the collared flycatcher and the pied flycatcher, can reproduce with each other, but the females are more strongly attracted to a male of their own species. view more (2007-10-05)
Census of Marine Life: Making Ocean Life Count
Burgeoning marine life database tops 5 million records, 38,000 species Scientists add over 4 million new records, 13,000 species in 2004; Exponential growth of "information seaway" tops Census highlights view more (2004-11-23)
Lemurs' evolutionary history may shed light on our own
After swabbing the cheeks of more than 200 lemurs and related primates to collect their DNA, researchers at the Duke Institute for Genome Sciences & Policy (IGSP) and Duke Lemur Center now have a much clearer picture of their evolutionary family tree. view more (2008-02-26)
Our penchant for rarity could threaten conservation efforts
Rare plant and animal species are like rare stamps or coins: they are perceived to be inherently more valuable to people, whatever they look like. view more (2009-04-22)
Brighter future for giant panda?
Scientists at Cardiff University, using a novel method to estimate population, have found that there may be many more giant pandas remaining in the wild than previously thought. view more (2006-06-20)
Predicting species abundance in the face of habitat loss
Habitat loss poses the greatest threat to the survival of a species, and often precipitates the demise of top predators and wide-ranging animals, like the Siberian tiger and the orangutan. view more (2006-09-26)
New Keys to Keeping a Diverse Planet
Variation in plants and animals gives us a rich and robust assemblage of foods, medicines, industrial materials and recreation activities. But human activities are eliminating biological diversity at an unprecedented rate. view more (2007-09-27)
Mistaken identity? When a white marlin may not always be a white marlin
For years, anglers thinking they were catching the prized white marlin may have caught something quite different, raising concerns about the true remaining numbers of the threatened species, according to an article in the most recent issue of the scientific journal Bulletin of Marine Science. view more (2007-02-26)
Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view. In the experimental system, top predators... view more... (2004-05-04)
Why are there so many more species of insects? Because insects have been here longer
J. B. S. Haldane once famously quipped that "God is inordinately fond of beetles." Results of a study by Mark A. McPeek of Dartmouth College and Jonathan M. Brown of Grinnell College suggest that this fondness was expressed not by making so many, but rather by allowing them to persist for so long. view more (2007-04-04)
Regional warming-induced species shift in NW Mediterranean marine caves
The north-western Mediterranean Sea has a high biodiversity reflecting a mixture of temperate and subtropical species. But this basin already shows signs of large-scale warming. Marine cave communities with endemic and specialised species are particularly at risk since they are naturally fragmented and more sensitive to perturbations. In the... view more... (2003-04-08)
Smithsonian puts tropical Eastern-Pacific shore fishes online
A new bilingual online information system created by D. Ross Robertson, staff scientist at the Smithsonian Tropical Research Institute, and Coeus Knowledge Systems makes it possible for conservationists, sport fishers, tourists, researchers, students and resource managers to identify and generate publishable maps for 1,287 tropical eastern Pacific... view more... (2008-11-25)
New bacterial species found in human mouth
Scientists have discovered a new species of bacteria in the mouth. The finding could help scientists to understand tooth decay and gum disease and may lead to better treatments, according to research published in the August issue of the International Journal of Systematic and Evolutionary Microbiology. view more (2008-08-11)
Genome comparison of 12 fruit fly species
Researchers from the UAB Genomics, Bioinformatics and Evolution Group participated in an international research that has resulted in the completion of the genomes of ten new fruit fly species. The study also includes new data on the evolution of the twelve currently known species during the past sixty million years. view more (2007-11-16)
Climate scientists spotlight Arctic warming, plight of polar bears
A climate scientist at the University of Chicago and 30 of her colleagues from across North America and Europe are urging the U.S. Fish and Wildlife Service to list the polar bear as a threatened species because global warming is melting its sea-ice habitat. view more (2006-06-19)
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)
Seed banks preserve plant diversity
'Some seed gene banks contain more higher plant species per square meter than anywhere else on the planet', write Simon Linington and colleagues of the Millenium Seed Bank, Kew, in the October issue of Biologist. This helps to 'ensure plant diversity is available long term for use in development or habitat restoration', they explain. Although... view more... (2003-10-02)
Underestimation of frog numbers causes concern
Frogs are vanishing from all the world's ecosystems with unprecedented speed. It is thought that more than 100 species have died out since 1980 alone. view more (2007-10-31)
Alien predators are more dangerous than native predators
Introduced predators such as foxes and cats are twice as deadly as native predators to Australia's unique native animals, a new study has found. view more (2007-03-14)
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