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Herbivore in Biological News

Rabbits to the rescue of the reef

... in a salvage operation when it becomes necessary. In Australia these herbivore fish populations are still in fairly good shape, but around the world as ... Micronesia and French Polynesia there are reports of serious declines in herbivore numbers of up to 90 per cent. By killing them, we may be unwittingly ...

Animal and plant communication at the ESA Annual Meeting

... need to assume that it has an adaptive value, or that it has anything to do with prey." Specialists are better at avoiding predators Insect herbivore species often specialize on the host plants that they eat, evolving adaptations to use a plant's unique set of resources. However, specialization ...

New discovery suggests trees evolved camouflage defense against long extinct predator

... of humans New Zealand had no native land mammals, but was home to moa, giant flightless birds, closely related to the modern ostrich and the top herbivore predator in the food chain. However moa were hunted to extinction 750 years ago. The Araliaceae tree has several defences which the team suggest ...

Diversity of plant-eating fishes may be key to recovery of coral reefs

... mixes of herbivorous species, we might see more rapid recovery of the reefs." Believed to be the first study to demonstrate the importance of herbivore diversity in enhancing the growth of coral reefs, the research was conducted at the National Undersea Research Center in Key Largo, Florida. It was ...

Emerging field of neuroecology is showcased in December issue of the Biological Bulletin

... MBL, WOODS HOLE, MA A plant laces its leaves with a noxious chemical, forcing a hungry herbivore to choose between starving, eating a potentially toxic item, or moving on. A newt secretes a potent neurotoxin to defend against predators, ...

Parasites' impact goes beyond host to affect ecosystem

... Hampshire, looks at parasitism by the trematode Cryptocotyle lingua in Littorina littorea, a snail known as the common periwinkle and the dominant herbivore in the intertidal zone. "We wanted to find out what was this parasite’s impact on the community," says Byers, who advised Wood during the research, ...

Why do insects like to eat some plants more than others?

... issue of The American Naturalist, Tom E. X. Miller, Andrew J. Tyre, and Svata M. Louda (all of the University of Nebraska, Lincoln) examined herbivore dynamics, specifically why plants aren't all eaten at the same rate. Plant-insect ecologists typically attribute the differences to variation in ...

Batfish to the rescue!

... GBR reefs may be closely tied to the fate of mangroves and their suitability for batfish recruitment." Batfishes may be one of the last intact herbivore populations capable of reversing serious weed overgrowth of inshore coral reefs, he adds. The reef has already all-but lost one major group of ...

Plants tell caterpillars when it's safe to forage

... in a new study in the open access journal PLoS Biology, Kaori Shiojiri, Rika Ozawa, and Junji Takabayashi show that plant signals can indeed regulate herbivore behavior. When the larvae of beet armyworms ( Spodoptera exigua ) feed on corn, the plant releases volatile compounds that act as a magnet for ...

Tyrannosaur survivorship -- tough times for teens

... quarry. It is the best evidence that exists to suggest that tyrannosaurids may have been gregarious, or pack, animals. The almost complete lack of herbivore bones from the excavation suggests that this was probably not a predator trap. Recognizing the importance of the site, Currie led an expedition in ...

Invasive exotic plants helped by natural enemies

... times to make room for their own domesticated and feral herbivores from the old world," said Parker. He also noted that this radical shift in herbivore composition may favor exotic plants over natives. Recent research, including a paper authored by Parker in Ecology Letters last year, suggests ...
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