Herbivores Current Events | Herbivores News
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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)
Winning by a neck — Giraffes avoid competing with shorter browsers
The giraffe's elongated neck has long been used in textbooks as an illustration of evolution by natural selection, but this common example has received very little experimental attention. view more (2006-12-26)
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)
Plant Communication: Sagebrush Engage in Self-Recognition and Warn of Danger
"To thine own self be true" may take on a new meaning-not with people or animal behavior but with plant behavior. view more (2009-06-22)
Big vegetarian mammals can play a critical role in maintaining healthy ecosystems, study finds
Removing large herbivorous mammals from the African savanna can cause a dramatic shift in the relative abundance of species throughout the food chain. view more (2007-01-17)
Rabbits to the rescue of the reef
While rabbits continue to ravage Australia's native landscapes, rabbit fish may help save large areas of the Great Barrier Reef from destruction. view more (2008-03-19)
New light shed on the enigma of salt intake and hypertension
A high salt intake has been implicated in cardiovascular disease risk for 5000 years. But salt-sensitive hypertension still remains an enigma. view more (2009-05-04)
Genetic differences in clover make one type toxic
That clover necklace you make for your child could well be a ring of poison. That's because some clovers have evolved genes that help the plant produce cyanide - to protect itself against little herbivores, such as snails, slugs and voles, that eat clover. view more (2007-10-02)
Climate change opens new avenue for spread of invasive plants
Plants that range northward because of climate change may be better at defending themselves against local enemies than native plants. view more (2008-11-20)
Understanding natural crop defenses
Ever since insects developed a taste for vegetation, plants have faced the same dilemma: use limited resources to out-compete their neighbors for light to grow, or, invest directly in defense against hungry insects. view more (2009-03-02)
Why Sloths Do Not Sleep Upside Down
Several mammal species other than ruminants and camels have a multi-chambered forestomach - kangaroos, hippos, colobus monkeys, peccaries, sloths - but they do not ruminate. As studies on the digestive physiology of these species are largely missing, it is generally assumed that their forestomach functions in the same way as that of ruminants,... view more... (2004-04-07)
Tiptoe through the tulips
Scientists have discovered that plant leaves activate defence mechanisms against plant eating insects within twenty seconds of an insect walking across them. Dr Alan Bown will be presenting the results of his footsteps research at the Society for Experimental Biology conference on Tuesday 9 April. view more (2002-04-04)
Ozone depletes oil seed rape productivity
High ozone conditions cause a 30% decrease in yield and an increase in the concentration of a group of toxic compounds within oilseed rape plants. view more (2009-06-29)
New crops needed for new climate
Global food security in a changing climate depends on the nutritional value and yield of staple food crops. Researchers at Monash University in Victoria, Australia have found an increase in toxic compounds, a decrease in protein content and a decreased yield in plants grown under high CO2 and drought conditions. view more (2009-06-29)
Wolves, moose and biodiversity: An unexpected connection
Moose eat plants; wolves kill moose. What difference does this classic predator-prey interaction make to biodiversity? view more (2009-11-02)
Crossing paths in plants
On Monday 31 March ecologists will meet with molecular biologists at the University of Southampton for the most novel and broad-ranging scientific session of its kind. They will present findings in Session C5/P3 which show that the biochemical pathways which influence a plant's response to stimuli such as attack, disease or other stresses are not... view more... (2003-03-26)
UCF student's research with Disney giraffes may help conserve several species
University of Central Florida doctoral student Jennifer Fewster is studying giraffe excrement at Disney's Animal Kingdom Lodge in Lake Buena Vista in an effort to figure out what the animals eat in the wild and to improve the nutrition of those in captivity. view more (2007-01-30)
Male flower parts responsible for potent grapevine perfume: UBC research
University of British Columbia scientists have traced the fragrant scent of grapevine flowers to pollen grains stored in the anthers, contrary to common perception that petals alone produce perfume. view more (2009-04-07)
Why Plants Talk To Insects - New Research from Imperial At Chelsea Flower Show (22-25 May)
Why talking to insects is so important to a plant's well-being is the theme of an unusual display at this year's Chelsea Flower show (22-25 May). The display, jointly staged by Imperial College at Wye and the ICI subsidiary, Quest International, will show how plants use scent and colour to attract helpful insects and to repel unwelcome herbivores.... view more... (2001-05-02)
Diversity of plant-eating fishes may be key to recovery of coral reefs
For endangered coral reefs, not all plant-eating fish are created equal. A report scheduled to be published this week in the early edition of the journal Proceedings of the National Academy of Sciences suggests that maintaining the proper balance of herbivorous fishes may be critical to restoring coral reefs, which are declining dramatically... view more... (2008-10-09)
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