Sentences with phrase «pollination by bees»

According to a 2011 report by the UN Environment Programme (UNEP), pollination by bees and other insects contributed about 153 billion euros ($ 204 billion), or 9.5 percent, of the total global value of food production.

From tomatoes to pumpkins, most fruit and vegetable crops rely on pollination by bees and other insect species — and the future of many of those species is uncertain.

Pollination by bees led to 39 % higher sales value than wind pollination and 54 % higher than selfing.

Previous studies have shown that pollination by bees yields firmer melons and cucumbers and higher sugar content in a few fruits.

Not exact matches

As Dave Hackenburg, who runs an industrial pollination services company in Pennsylvania, says, «If you start shortening lives of bees, just by a few days, young bees have to go to the field earlier, and the whole thing gets messed up.»

Some well - intentioned vegans overlook the use of honey because of the widely spread myth that honey and bee products are all - natural by - products of the necessary pollination of our food crops.

A promising study published last autumn by ecologists Sarah Greenleaf of the University of California at Davis and Claire Kremen of the University of California at Berkeley found that the presence of wild bees increases the efficiency of sunflower pollination fivefold.

They found that the factors that most greatly accelerated the formation of new species were life in extensive mountain ranges (like the Andes and New Guinea Highlands); the evolution of epiphytism (life in the trees); pollination by orchid bees, moths, or butterflies; and origin of pollinia (packages of hundreds to thousands of pollen grains dispersed as a unit).

Her current work examines which bee species are most vulnerable to human disturbance, and explores in more detail whether both rare native bees and efficient pollination services can be restored by increasing the diversity of flowering plants.

Instead, he was taken aback by the sixfold increase in the growth rate of crops that depend on domesticated bees for pollination.

Pollination by honey bees and wild bees helps prevent deformities and other problems in strawberries.

But those same chemical defenses can reduce the number of visits to the plant by pollinators such as bees, resulting in less pollination of individual plants and decreased growth.

One third of our food is dependent on the pollination of fruits, nuts and vegetables by bees and other insects.

«Pollination mystery unlocked by bee researchers.»

Honey bees carry out fundamentally vital roles in nature by providing essential ecosystem functions, including global pollination of crops and native plants.

More than 94 percent of flowering tropical plants and 75 percent of the world's leading food crops require pollination by animals such as bees, bats and hummingbirds.

In standard forms of pollination, bees collect pollen by simply brushing it off plants» anthers.

The shift from bee to hawkmoth pollination in some Petunia species after their divergence from P. inflata was accompanied by a mutation in MYB - FL that greatly increased the levels of a major class of UV - absorbing compounds in the flower.

The work re-ignites arguments to ban neonics, and certainly comparable studies are now need on other pollinator species given that honey bees are by no means the contributor to crop pollination.»

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.

Hive Culture presents diverse works by 18 contemporary artists who are preoccupied with the pivotal role that bees play in pollination, environmental health and our changing relationship to nature.

A good example is the pollination of plants by bees and birds and other species, a service which may be negatively affected by climate change.

In Mexico, where vanilla originated, the pollination is done by native bees, but Madagascar lacks these little helpers.

The second place prize went to YT AG, a system for monitoring the health of bee hives used by the commercial pollination industry that ambitiously includes hardware, software and a premium AI component.