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Latest seed dispersal Stories

bats and light pollution
2014-03-11 10:22:41

Wiley These new findings were reported by scientists from the German Leibniz Institute for Zoo and Wildlife Research Berlin (IZW). The study – published in the British Ecological Society's Journal of Applied Ecology – is the first to show that seed-dispersing bats avoid feeding in light-polluted areas. Working in Costa Rica with Sowell's short-tailed bats (Carollia sowelli), Daniel Lewanzik from the IZW gave the bats a simple choice. He divided a flight cage into two compartments....

aerial view of a conservation corridor experiment
2014-02-26 07:56:50

David Tenenbaum, University of Wisconsin-Madison MADISON, Wis. — Field ecologists go to great lengths to get data: radio collars and automatic video cameras are only two of their creative techniques for documenting the natural world. So when a group of ecologists set out to see how wind moves seeds through isolated patches of habitat carved into a longleaf pine plantation in South Carolina, they twisted colored yarn to create mock seeds that would drift with the wind much like native...

Cycads Evolved To Grow In Groves With Seed Dispersal By Large Frugivores
2013-08-21 06:22:43

April Flowers for redOrbit.com - Your Universe Online Before the age of dinosaurs, the ancient cycad lineage existed. Cycads also co-existed more recently with large herbivorous mammals, such as the Ice Age megafauna that only went extinct a few tens of thousands of years ago. Modern cycads have large, heavy seeds with a fleshy outer coat, suggesting they rely on large bodied fruit-eating animals to disperse their seeds. However, little evidence has been found that modern larger-bodied...

Meat Hunting Changes The Vegetation Of African Rainforests
2013-03-20 16:33:06

Lee Rannals for redOrbit.com - Your Universe Online Researchers from Lund University in Sweden wrote in the journal Proceedings of the Royal Society B that the hunting of animals like primates in these rainforests can cause a reduction in the dispersal of seeds. “Hunting has a dramatic effect on the composition and structure of the forest, just as logging does, but without felling any trees,” said Ola Olsson, a professor in Lund´s Department of Biology. The team...

Rodents Do Their Part To Help Save Tropical Trees
2012-07-17 06:07:04

[ Watch the Video ] redOrbit Staff & Wire Reports - Your Universe Online There's no honor among thieves when it comes to rodent robbers – which turns out to be a good thing for tropical trees that depend on animals to spread their seeds, according to recent research. Big seeds produced by many tropical trees were probably once ingested and then defecated whole by huge mammals called gomphotheres that dispersed the seeds over large distances. But gomphotheres were...

2011-12-10 02:11:01

New findings by Virginie Stevens (CNRS), Jean Clobert (CNRS), Michel Baguette (Muséum National d'Histoire Naturelle) and colleagues show that interactions between dispersal and life-histories are complex, but general patterns emerge. The study was published as open access paper in the journal Ecology Letters. As dispersal plays a key role in gene flow among populations, its evolutionary dynamics under environmental changes is particularly important. The inter-dependency of...

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2011-07-29 09:30:41

Nutmeg-loving toucans wearing GPS transmitters recently helped a team of scientists at the Smithsonian Tropical Research Institute in Panama address an age-old problem in plant ecology: accurately estimating seed dispersal. The tracking data revealed what scientists have long suspected: toucans are excellent seed dispersers, particularly in the morning. Also, for the first time, the data enabled researchers to create a map of the relative patterns and distances that toucans distribute the...

2011-05-18 16:54:07

Maintaining the world's threatened animal and plant species may rest with something as simple as knowing how far a bird can fly before it must answer nature's call. Birds disperse seeds as they travel, but deforestation can mean those seeds might land where they can't sprout and grow, according to a University of Florida researcher who co-wrote a study in last month's issue of Ecology that looks at how tropical birds disperse plant seeds in Brazil's Amazon rainforest. If birds spread plant...

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2011-03-24 13:46:55

Temperature increases resulting from climate change in the Southwest will likely eliminate Joshua trees from 90 percent of their current range in 60 to 90 years, according to a new study led by U.S. Geological Survey ecologist Ken Cole. The research team used models of future climate, an analysis of the climatic tolerances of the species in its current range, and the fossil record to project the future distribution of Joshua trees. The study concludes that the species could be restricted to...

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2011-01-24 08:25:24

Global warming is already affecting the earth in a variety of ways that demand our attention. Now, research carried out at the Hebrew University of Jerusalem indicates that many tree species might become extinct due to climate change if no action is taken in time. According to the research, trees which disperse their seeds by wind, such as pines and maples, will be unable to spread at a pace that can cope with expected climate changes. The research, which focused on the ecological...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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