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Fossil Reveals Transition From Carnivore To Herbivore

Fossil Reveals Transition From Carnivore To Herbivore

Brett Smith for redOrbit.com - Your Universe Online The fossil of a newly-discovered species called Eocasea martini is being described as a sort of missing link in the transition from carnivorous to herbivorous behavior in land animals....

Latest Herbivore Stories

Attracting Or Repelling Insects Using Different Scents
2014-04-01 15:48:26

University of Zurich Flowering plants attract pollinating insects with scent from their flowers and bright colors. If they have become infested with herbivores like caterpillars, they attract beneficial insects like parasitic wasps with the help of scent signals from their leaves. The wasps then lay their eggs in the caterpillars and kill the parasites. Floral and foliar scents can, however, mutually reduce their attractiveness. That's why flowering plants face a dilemma: should they use...

Microcosm Of Biodiversity In New Plant Species
2014-02-10 10:21:53

Pensoft Publishers Biologists working in the Andes mountains of Ecuador have described a new plant species, a wild relative of black pepper, that is in itself a mini biodiversity hotspot. The new species, Piper kelleyi, is the sole home of an estimated 40-50 insect species, most of which are entirely dependent on this plant species for survival. This discovery is part of a larger project which focuses on the influence of plant-produced chemical compounds on biodiversity. The study was...

Extracting Plant DNA From Grasshopper Guts Improves Understanding Of Plant-insect Interactions
2014-02-06 14:12:58

[ Watch the Video: Demonstration of Grasshopper Dissection ] American Journal of Botany Grasshoppers may be small, but the damages they are causing to the US agriculture industry are anything but. Every year, they feed on crops and on rangelands needed for raising livestock, costing landowners millions of dollars. Although they pose a major threat, grasshopper populations play a positive role in cycling nutrients from decomposing plant matter back into the soil. A new method to...

Acacia Plants Protected Against Pathogens By Ants
2014-01-16 10:19:05

Max Planck Institute for Chemical Ecology Researchers discover an additional level of this insect-plant symbiosis The biological term “symbiosis” refers to what economists and politicians usually call a win-win situation: a relationship between two partners which is beneficial to both. The mutualistic association between acacia plants and the ants that live on them is an excellent example: The plants provide food and accommodation in the form of food bodies and nectar as well as...

Smaller Islands Have Shorter Food Chains
2013-11-22 09:07:08

University of Helsinki That smaller islands will typically sustain fewer species than large ones is a widespread pattern in nature. Now a team of researchers shows that smaller area will mean not only fewer species, but also shorter food chains. This implies that plant and animal communities on small islands may work differently from those on large ones. Top predators the first to go Working across a set of 20 islands off the Finnish coast, a group of Finnish scientists found that a...

2013-11-19 23:33:35

The novel Natural Sciences Bibliographic Web Portal aims to provide comprehensive bibliographic information on the basic and applied life, earth and health sciences and has now published over 1 million references and 420 thousand tags. Scien.net has also included the new category Frugivorous, which contains scientific information on frugivores, which are animals that eat fruits, and on habitat which is the natural environment of a specific organism to get its food supplies and dietary...

Beetles Defeat Plant Defenses With Help From Microbes
2013-09-10 11:03:44

Penn State Some symbiotic bacteria living inside Colorado potato beetles can trick plants into reacting to a microbial attack rather than that of a chewing herbivore, according to a team of Penn State researchers who found that the beetles with bacteria were healthier and grew better. "For the last couple of decades, my lab has focused on induced defenses in plants," said Gary W. Felton, professor and head of entomology. "We had some clues that oral secretions of beetles suppressed...

How Plant Eating Dinosaurs Coexisted
2013-07-11 14:05:45

Lee Rannals for redOrbit.com - Your Universe Online A new study is helping answer a long-standing question about how large, plant-eating dinosaurs could have co-existed successfully over long periods of geological time. Dr. Jordan Mallon, a post-doctoral fellow at the Canadian Museum of Nature, measured and analyzed the characteristics of nearly 100 dinosaur skulls recovered from the Dinosaur Park Formation in Alberta. He published his results in the journal PLOS ONE. According to...

Plant Distress Signals Can Attract Enemies
2013-07-02 15:02:35

Frontiers Plants that emit an airborne distress signal in response to herbivory may actually attract more enemies, according to a new study published in the open-access journal Frontiers in Plant Science. A team of researchers from Switzerland found that the odor released by maize plants under attack by insects attract not only parasitic wasps, which prey on herbivorous insects, but also caterpillars of the Egyptian cotton leafworm moth Spodoptera littoralis, a species that feeds on...

Effects Of Predators On Carbon Cycle
2013-06-18 09:44:57

April Flowers for redOrbit.com - Your Universe Online The predator-prey relationship can affect the flow of carbon through an ecosystem, according to a new study from the Yale School of Forestry & Environmental Studies. The findings, published in Proceedings of the National Academy of Sciences, may offer a new way of looking at biodiversity management and carbon storage for climate change. The study examines the relationship between grasshoppers (herbivores) and spiders (predators)...