Sentences with phrase «wild bee species»

On average, only 2 % of wild bee species were responsible for 80 % of the pollination visits witnessed by researchers around the world, according to a study published Tuesday in the journal Nature Communications.

Steve Frank, associate professor of entomology at NC State University, tested 15 species of the most common wild bee species that exist in Southern cities to identify the highest temperatures each could withstand.

The research, which was just published in the journal Microbial Ecology, shows for the first time that multiple flower and wild bee species share several of the same types of bacteria.

«Flowers critical link to bacteria transmission in wild bees: Research shows for the first time that multiple flower and wild bee species share several of the same types of bacteria.»

A recent study published in the journal Science found that in a span of 120 years, Illinois lost half its wild bee species, largely because of diminished numbers of wild flowering plants.

Leaf - cutter bees and alkali bees pollinate alfalfa, the blue orchard bee pollinates fruit trees (especially almonds), wild bee species Osmia aglaia and O. bruneri pollinate raspberries and blackberries, and O. ribifloris is effective at tending to blueberries.

Researchers at the University of York mapped population data for 62 wild bee species sprinkled across the United Kingdom along with neonicotinoid treatment in local oilseed rape (Brassica napus) fields over 18 years.

Not exact matches

Of the hundred principal crops that make up most of the world's food supply, only 15 percent are pollinated by domestic bees (mostly honey bees, bumble bees and alfalfa leafcutter bees), while at least 80 percent are pollinated by wild bees and other wildlife (as there are an estimated 25 000 bee species, the total number of pollinators probably exceeds 40 000 species).

He was also a visiting research fellow at the University of São Paulo in Brazil, visiting in 1998 to study pollinator ecology, which included different species of bees and hoverflies, and again in 2003 to study wild bee ecology.

More than 10,000 years ago, somewhere in the Andean foothills between Argentina and Bolivia, two wild legume species mixed, probably with the help of some pollinating bees.

Greenleaf and Kremen counted 33 species of wild bee in the sunflower fields of Central Valley in California.

«Climate change has had a notable impact upon the distribution of many wild bees, with several species such as the newly - arrived Tree Bumblebee migrating north in the past 20 years as the climate has started to warm,» says the report, titled «The Decline of England's Bees.&rabees, with several species such as the newly - arrived Tree Bumblebee migrating north in the past 20 years as the climate has started to warm,» says the report, titled «The Decline of England's Bees.&raBees.»

After decades of a massive and uncontrollable continent - wide wild breeding experiment, the African - Italian hybrid has morphed into a totally new bee unlike either parent species.

In response, USDA Chief Scientist Catherine Woteki told GAO that it would be «physically and fiscally impossible» to track the roughly 4000 North American species of wild and native bees But she said it would be «informative» to monitor a smaller number of «sentinel species,» each of which could serve as a proxy for multiple bee species.

More than 900 species of wild bees are found in France, but many of them — such as bumblebees — are in decline.

An independent experiment in boosting almond yields has mixed the wild blue orchard bee species with rented honeybees in California fields, says Theresa Pitts - Singer of the Department of Agriculture's Bee Biology and Systematics Laboratory in Logan, Utah.

Orchid bees were best at dealing with 35 % solutions, which is exactly the sugar concentration of nectar that the animals collect in the wild, whereas lapping species, such as honeybees, prefer more syrupy nectar, with a sugar concentration of around 55 %, Borrell reports online this week in Biology Letters.

Could wild native bee species ease our dependence on honeybees by lessening their workload?

As colony collapse disorder and other maladies continue to devastate honeybee populations, researchers are turning their attention to alternative pollinators — the thousands of native bee species throughout the country — and are looking for ways to make croplands more attractive to these wild bees.

Their study, reported in the Proceedings of the National Academy of Sciences, found that N. bombi was present in the U.S. as early as 1980, well before several species of wild bumble bees started to go missing across the country.

The scientists point out that, in the wild (where there are no magnetic wingmen), the females» preference for local males» vibrations could be an early sign of speciation in the red mason bees: If the females of one subspecies stop mating with the other subspecies entirely, the two lineages may eventually become incompatible and diverge into two separate species.

Scientists have become increasingly concerned about threats to bees in recent years, with the International Union for Conservation of Nature stating in March that 10 % of Europe's native wild species could soon face extinction.

Indeed, we found that spillover has allowed C. bombi to invade several wild bumble bee species near greenhouses.

If any thing else urbanization probably increases the cat population by a little along with huge increases n pollution, traffic, buildings, boys with bee bee guns, pesticides, Urbanization also has the nasty side effect of decreasing natural resources for all species of wild life including birds.

Populations of wild bees and other pollinating species, including butterflies and moths, birds and bats, are being pushed to extinction at startling rates.

Stresses that have been associated with CCD include declining genetic honey bee variation (which does not explain CCD cases among wild bees and bumblebees), the invasion of exotic species, climate change and — which we reported on two days ago — a decline in flower biodiversity, mainly due to the rise of monoculture cropland.

Farmers growing crops from apples to zucchini have long relied on wild pollinators — including various bee species, birds and bats — to fertilize plants and increase yields.