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Theory of oscillations may explain biological mysteries
New mathematical studies of the interactions between oscillating biological populations may shed light on some of the toughest questions in ecology, including the number and types of species in an ecosystem, according to an article in the December 2006 issue of BioScience. view more (2006-12-04)
Diversity in the deep blue seas
Nature magazine has published an article by Xabier Irigoien, a researcher at AZTI, the Basque Fisheries and Marine Technological Research Centre. The article provides data on the diversity of marine life at the bottom of the sea - particularly amongst algae. Species diversity Most research carried out on the diversity of species has been with land... view more... (2004-06-28)
Predators: an overlooked player in plant-pollinator relationships
Biologists have long recognized that predators can help to shape ecological communities -- wolves promote the growth of young trees through predation on moose, otters keep kelp forests thriving by preying on sea urchins, etc. Yet we have seldom considered the consequences of predation on animals that help plants reproduce. Predation on pollinators... view more... (2003-08-13)
Arctic oil: A boon for nest predators
A new study by the Wildlife Conservation Society, U.S. Fish and Wildlife Service, and other groups reveals how oil development in the Artic is impacting some bird populations by providing "subsidized housing" to predators, which nest and den around drilling infrastructure and supplement their diets with garbage - and nesting birds. view more (2009-09-09)
Loss of top predators causing surge in smaller predators, ecosystem collapse
The catastrophic decline around the world of "apex" predators such as wolves, cougars, lions or sharks has led to a huge increase in smaller "mesopredators" that are causing major economic and ecological disruptions, a new study concludes. view more (2009-10-02)
Duck-billed dinosaurs outgrew predators to survive
With long limbs and a soft body, the duck-billed hadrosaur had few defenses against predators such as tyrannosaurs. But new research on the bones of this plant-eating dinosaur suggests that it had at least one advantage: It grew to adulthood much faster than its predators, giving it superiority in size. view more (2008-08-06)
Predators do more than kill prey
The direct effect predators have on their prey is to kill them. The evolutionary changes that can result from this direct effect include prey that are younger at maturity and that produce more offspring. view more (2008-01-18)
Sea slug mixes chemical defense before firing at predators
When threatened by predators, sea slugs defend themselves by ejecting a potent inky secretion into the water consisting of hydrogen peroxide, ammonia and several types of acids. view more (2005-12-19)
Chicken-hearted tyrants
Two titans fighting a bloody battle - that often turns fatal for both of them. This is how big predatory dinosaurs like Tyrannosaurus are often depicted while hunting down their supposed prey: even larger herbivorous dinosaurs. view more (2009-08-07)
Evolution can occur in less than 10 years
How fast can evolution take place? In just a few years, according to a new study on guppies led by UC Riverside's Swanne Gordon, a graduate student in biology. view more (2009-06-11)
Aphids make 'chemical weapons' to fight off killer ladybirds
Cabbage aphids have developed an internal chemical defence system which enables them to disable attacking predators by setting off a mustard oil 'bomb'. view more (2007-07-11)
Hareless: Yellowstone's rabbits have vanished, study says
A new study by the Bronx Zoo-based Wildlife Conservation Society found that jack rabbits living in the Greater Yellowstone Ecosystem have apparently hopped into oblivion. view more (2008-02-15)
'Plant-eating predator to fight superweed is not magic bullet'
Plans to introduce plant-eating predators to fight a superweed spreading throughout Britain should not be seen as a 'magic bullet', says a world expert on Japanese knotweed at the University of Leicester. view more (2008-10-15)
Controlling algal blooms
Diatoms, highly successful photosynthetic plankton responsible for 40% of the net primary production in the oceans, undergo seasonal population explosions called phytoplankton blooms that attract billions of krill, copepods, and other grazing predators. view more (2006-02-21)
Yale researchers find key 'conductor' of nature's synchronicity
Synchronicity in nature is seen in beating hearts, the flashing of fireflies' lights, the ebb and flow of infectious disease-and the simultaneous rise and fall of populations across vast reaches of space. view more (2009-07-23)
Predators drive the lemming cycle in Greenland
A recent study conducted in eastern Greenland and published in the October 31 issue of the Science magazine provides new understanding of the dynamics of arctic lemming populations. Olivier Gilg and Ilkka Hanski from the University of Helsinki, Finland, and Beno'®t Sittler from the University of Freiburg, Germany, combined long-term field... view more... (2003-10-29)
Study reveals predation-evolution link
The fossil record seems to indicate that the diversity of marine creatures increased and decreased over hundreds of millions of years in step with predator-prey encounters, Virginia Tech geoscientists report in the Proceedings of the National Academy of Science. view more (2007-09-11)
Research cautions to catch-and-release in less than 4 minutes
Recreational fishing that involves catch-and-release may seem like just good fun, and that released fish go on to live happily ever after, but a recent study at the University of Illinois shows that improper handling techniques by anglers can increase the likelihood of released fish being caught by predators. view more (2007-09-28)
A venomous tale: Vipers shape lizards' tail-shedding abilities
University of Michigan ecologists and their colleagues have answered a question that has puzzled biologists for more than a century: What is the main factor that determines a lizard's ability to shed its tail when predators attack? view more (2009-03-26)
Creeping crinoids! Sea lilies crawl to escape predators, new video shows
With their long stalks and feathery arms, marine animals known as sea lilies look a lot like their garden-variety namesakes. view more (2005-10-17)
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