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Ecology Current Events | Ecology News | 9
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Predetermined winners and losers in the Ice Age extinction game
The Quaternary ice ages caused severe decimation of the European tree flora. Of the diverse pre-Ice Age tree flora only a minority of the genera are still widespread in Europe. Most of the remainder have been lost altogether from the European flora and now only occurs in Asia and/or North America, although some persist as relicts in southern... view more... (2003-07-02)
Declining sharks
The transformation of terrestrial and coastal ecosystems by humans is well known, but only recently have the impacts of anthropogenic forces in the open ocean been recognized. In particular, intense exploitation by industrial fisheries is rapidly changing oceanic ecosystems by drastically reducing populations of many marine species. For most... view more... (2004-02-05)
Ecological replacement of native red squirrels by invasive greys driven by disease
The traditional explanation for the replacement of the native red squirrel by the introduced grey over much of the United Kingdom is that the grey out-competes the red for food resources. A new study published in the March issue of Ecology Letters demonstrates that a virus introduced with the grey may also be a crucial component. The research team... view more... (2003-03-11)
'Alien' jaws help moray eels feed
Moray eels have a unique way of feeding reminiscent of a science fiction thriller, researchers at UC Davis have discovered. After seizing prey in its jaws, a second set of jaws located in the moray's throat reaches forward into the mouth, grabs the food and carries it back to the esophagus for swallowing. view more (2007-09-06)
Biodiversity conservation - no guarantee for shortcuts
New research from scientists at the University of Sheffield published in the November issue of Ecology Letters has cast doubts on the widely held `rule of thumb` that the conservation of a country`s biodiversity can be guaranteed by focusing on protecting its threatened and endemic species. In a report published this week, Aletta Bonn, Ana... view more... (2002-10-30)
Lifeline for vultures from breeding centre plan
Conservationists say six major breeding centres will be needed, for three species of vultures, if they are to be saved from extinction in the Indian subcontinent. view more (2004-09-29)
Primates harvest bee nests in Ugandan reserve
In the first study of native African honeybees and honey-making stingless bees in the same habitat, humans and chimpanzees are the primary bee nest predators. view more (2006-02-28)
Sheep that shed light on personality differences
The team led by Denis Reale, a professor in the Department of Biological Sciences at UQAM and Canada Research Chair in Behavioural Ecology, recently completed a study showing the link between personality, survival and reproductive success in male bighorn sheep. view more (2009-09-16)
Saving our bees
Most of the world's plant species rely on animals to transfer their pollen to other plants. The undisputed queen of these animal pollinators is the bee, made up of about 30,000 species worldwide, whose daily flights aid in the reproduction of more than half of the world's flowering plants. view more (2008-08-04)
Iowa State professor's research shows Midwest forests losing diversity, complexity
Forests in the nation's Upper Midwest have changed greatly since the time of the early settlers. And more changes may be coming. view more (2007-10-17)
Study shows parasites outweigh predators
In a study of free-living and parasitic species in three estuaries on the Pacific coast of California and Baja California, a team of researchers from the University of California, Santa Barbara, the United States Geological Survey, and Princeton University has determined that parasite biomass in those habitats exceeds that of top predators, in... view more... (2008-07-24)
Habitat loss and reserve network selection
What is the minimum combination of areas needed to protect at least one population of every species in a region? - This is a problem commonly addressed when aiming at cost-effective reserve networks. However, because the stress on reserve cost, the properties of the reserve-network for species persistence are often overlooked, typically resulting... view more... (2003-07-02)
Grazer diversity counteracts plant diversity effects on ecosystem functioning in seagrass beds
Several influential experiments have shown that high plant diversity enhances ecosystem productivity, animal diversity, and invasion resistance. Yet theory predicts that plant and herbivore diversity, which often co vary in nature, should have countervailing effects on ecosystem properties. In the July issue of Ecology Letters, Duffy, Canuel, and... view more... (2003-07-02)
Scientists unravel feeding habits of flying reptiles
Scientists at the University of Sheffield, collaborating with colleagues at the Universities of Portsmouth and Reading, have taken a step back in time and provided a new insight into the lifestyle of a prehistoric flying reptile. view more (2007-07-24)
Insurgental Biological Warfare Against Gipsy Moth
Specialists of the Institute of Taxonomy and Ecology of Animals (Siberian Branch, Russian Academy of Sciences) investigate peculiarities of struggle against Asian populations of Gipsy moth - one of the most widespread and economically significant forest pests. The methods applied in the North America and Europe do not work with Asian populations... view more... (2005-04-29)
Symbiotic fungi promote invasion into diverse plant communities (Rudgers et al.)
Populations of several European passerines that winter south of the Sahara have undergone a marked decline. The causes of negative population trends are largely unknown, but ecological conditions during winter in Africa may have carry-over effects during northward spring migration and reproduction. In the January issue of Ecology Letters, Saino,... view more... (2003-12-10)
Ecosystem consequences of a single, genetically based plant trait
Climate is often touted as the most important regulator of decomposition and nutrient cycling processes in forest ecosystems, however, in the forthcoming issue of Ecology Letters, Schweitzer and her research team from Northern Arizona University and the University of Wisconsin, USA, demonstrate that plant genes can have strong effects on the... view more... (2004-02-05)
New host species for avian influenza identified
In a new study published online in the open-access journal PLoS Pathogens, Dr. Vincent J. Munster, of Erasmus Medical Center, Rotterdam, and colleagues identify new host species for avian influenza A virus (H5N1) and provide important information on the distinctions between the ecology and epidemiology of various global strains of the virus. view more (2007-05-11)
Human reproductive rates follow biological scaling rules
In nations with high per capita energy consumption, women have fewer children. This phenomenon is an unexpected consequence of the biological scaling relationship between metabolism and reproductive rate: larger species of mammals have higher metabolism but lower birth rates. In the April 2003 issue of Ecology Letters, Moses and Brown show that... view more... (2003-04-08)
Herbivory discovered in a spider
There are approximately 40,000 species of spiders in the world, all of which have been thought to be strict predators that feed on insects or other animals. Now, scientists have found that a small Central American jumping spider has a uniquely different diet: the species Bagheera kiplingi feeds predominantly on plant food. view more (2009-10-13)
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