Tag: "richness" at biology news

Scientists: Collapse of coastal ecosystems tied to past overfishing

...mit restoration. Recognition and study of the past richness of coastal ecosystems highlights the extraordinary magnitude of economic resources that are retrievable and is a first step toward rebuilding the systems to their past glory, they say. If we want to restore these ecosystems, we have to understa...

Of gallflies, bees, mosquitoes, and butterflies: researchers to discuss insects

... Ideas E. Go towards the light: butterfly species richness increases following ponderosa pine restoration. Ec...ee densities, which has helped to increase species richness and abundance in the understory areas of the forests. Sampling done in the restoration zones showed...

A major scientific survey finds more species than in the entire Mediterranean at Lifou, Loyalty Islands

... an exhaustive quantified inventory of the species richness of a whole site. An international network of 120 taxonomists is being coordinated by the MNHN to study this wealth of fauna. Many more years of investigation will be needed before these samples can yield all the information they hold. The results fro...

Meeting ecological and societal needs for freshwater

...nthly temperature along with reductions in species richness have been observed in the downstream waters of some dams in the western states. All these changes have ripple effects throughout ecosystems. For example, since they are filter feeders that remove many of the pollutants found in water, a decline in ...

Small research big on Illinois campus

... and smell, Sligar said. We want to draw from the richness of the biological landscape to provide starting materials that can be linked with microfluidic devices on patterned structures and tailored for highly specific sensor applications. The UIs emphasis on nanotechnology is also reflected in other ways, s...

Black raspberries a potentially powerful agent in fight against colon cancer

... health advantage may be their richness in compounds such as anthocyanins, which give berries their almost-black pigment; phenols, such as ellagic, coumaric and ferulic acid; calcium; and vitamins such as A, C, E and folic acid. A...

Rainforest wildlife surprisingly sensitive to landscape changes

...ant and animal species; drastically alters species richness and abundance; and disrupts ecological processes, as well as creating opportunities for non-native species invasions, altering forest carbon storage and increasing vulnerability to fire. A surprising number of wildlife species are extremely sensiti...

Lakeshore development affects birds

...ife. They looked at abundance (numbers of birds), richness (numbers of species) and diversity (a measure of how evenly distributed among species the birds in a given community are). In contrast, using these traditional measures, they found no differences in bird communities around developed and undeveloped ...

Ecology and conservation of fragmented tropical forests

... butterflies showed fragmentation affected species richness and diversity for all study groups, and also affected important ecological processes, but some of these effects were unexpected. For example, tree communities in small isolated fragments turned out to be richer in than those in larger connected ones....

City birds prefer rich neighbors

... the bird population has a slightly higher species richness (number of species) and greater abundance (number of birds in general) in urban Phoenix than in the surrounding Sonoran Desert, but the real surprise comes in a recent study that shows that the city birds can be truly discriminating about where they ...

USGS to map richness of aquatic life in the Great Lakes

... identify and map unprotected areas of substantial richness in aquatic animalspecies, and to determine how fre...and urban expansion. "Restoring and preserving the richness of species--the biodiversity--of the lands and waters ofthe region is an important activity because ...

To thin or not to thin

...evalent in thinned stands contributed to a greater richness of moth populations. "Taken together, these studies suggest that thinning may have positive results for plants and animals if the methods used protect shrubs, hardwoods, large trees, and old trees," Tappeiner said. Pat Muir, a professor of botany a...

Down by the river

...e number of exotic species decreased. But species richness -- the variety of species -- for native and exotics also decreased. According to the researchers these results may be a combination of fewer seeds and less disturbances, leading to fewer opportunities for exotics to invade the upland sites. Brown a...

Rutgers explorer describes sea floor hot springs as teeming with valuable minerals and microbes

...id. "We are only beginning to discover the immense richness and diversity of sea floor resources." The public will have an opportunity to view Rona's undersea work in a giant-screen film to be released later this year, entitled "Volcanoes of the Deep Sea," produced by the Stephen Low Company and Rutgers Univ...

The dollars and sense of protecting the ocean

... that can help protect, and possibly restore ocean richness and marine biodiversity. Hence, there seem to be clear ecological advantages to MPA establishment, but what are the economic pro's and con's? Until now, there has been little coordinated effort to explore economic questions related to the creation of...

SRS research highlights from the Red-Cockaded Woodpecker Symposium

...nducted to determine the effect on general species richness and abundance of the restoration efforts for red-c...veys showed a higher overall abundance and species richness of butterflies, reptiles, mammals, and birds. The red-cockaded woodpecker and other species of conse...

Genebanks: Preserving genetic diversity for Earths future

...and plant population, but in order to preserve the richness of biological diversity, alternatives such as gene...y is not easy to do, but necessary to preserve the richness of the planet's genetic diversity....

New age for Mungo Man, new human history

... this strange land, especially with the rights and richness of their descendants. "Indeed it is those descendants, in the person of the three traditional tribal groups of the Willandra region (the Barkandji, the Mutthi Mutthi and the Nyampaa) who facilitated and cooperated closely with this project. This repr...

Tourism leaders and conservation organizations to devise Caribbean conservation action plan

...ends on protecting the natural beauty and cultural richness of destinations. One of the most geographically complex regions of the world, the Caribbean is a biodiversity hotspot. The Earth's 25 biodiversity hotspots combined make up just 1.4 percent of the planet's surface, yet harbor over 60 percent of all ...

Three Gorges Dam is an opportunity for ecoscience

...ues that because of the dam's size, the biological richness of the area, and the possibility of doing thorough before-and-after surveys and studies, the Three Gorges Dam Project would allow the best opportunity to date to study habitat fragmentation, in process and on a full landscape scale. At issue is exp...

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