Sentences with phrase «bumblebee species»

What got me musing about bees in mid-winter was an article in the Guardian recently that talked about an alarming 96 % drop in the numbers of four bumblebee species in the U.S. Like their honey bee cousins, Bombus — the genus name means «booming» in Latin — is a very important pollinator.

«Some bumblebee species have declined hugely.

For example in North America, several bumblebee species which used to be common have more or less disappeared from the entire continent.

«Protecting bumblebee species and habitats, restoring degraded ecosystems and promoting biodiversity - friendly agricultural practices will be essential to reverse the negative trends in European bumblebee populations,» said Ana Nieto, European Biodiversity Officer of IUCN and coordinator of the study.

Europe is still home to 68 different bumblebee species — of which according to IUCN 24 percent are now directly threatened with extinction and about half have clearly declining populations.

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Alan Boyle, NBC News Scientists say wild bumblebee species are being squeezed into extinction by climate change in North America and Europe — so much so that some of them might need help from us humans to find safe havens.

The N.C. Wildlife Resources Commission recently identified seven of the state's struggling bumblebee species as being among the animals and plants in greatest need of conservation under its Wildlife Action Plan.

With over 250 bumblebee species globally, these important insects perform the laborious task of pollinating flowers in both wild and agricultural settings.

Two research articles published in the journal Genome Biology present the first genome sequences and analyses of two key bumblebee species: the European buff - tailed bumblebee, Bombus terrestris, and the North American common eastern bumblebee, Bombus impatiens.

A key example is the decline of three bumblebee species in North America.

Of the 25 UK bumblebee species, two have become extinct and eight have declined substantially since 1940.

A two - year study of farms in West Sussex and Hampshire in the UK found that England's most common bumblebee species saw significant population growth where targeted, bee - friendly planting schemes were in place.

The study, published in the journal Behavioural Ecology and Sociobiology, combines mathematical modelling with an analysis of population changes in 221 bird and 43 bumblebee species worldwide.

Remove even one bumblebee species from an ecosystem and the impact is swift and clear: Their floral «sweethearts» produce significantly fewer seeds, a new study finds.

B. dahlbomii once ranged across thousands of kilometers of Patagonia, the cool, southernmost tip of South America, where it was the only bumblebee species.

These changes had direct implications for plant reproduction: Larkspurs produced about one - third fewer seeds when one of the bumblebee species was removed, compared to the larkspurs in the control groups.

That study showed how removing a bumblebee species disrupted floral fidelity, or specialization, among the remaining bees in the system, leading to less successful plant reproduction.

Many companies export bumblebee species, sending them around the world to pollinate crops such as the tomato.

«We can see this shift in who visits which plant even in pollinators that are not closely related to the bumblebee species that we remove from the system.»

Bird and bumblebee species that nest late in the year are suffering more from the destruction of habitats, new research suggests.

The absence of a single dominant bumblebee species from an ecosystem disrupts foraging patterns among a broad range of remaining pollinators in the system — from other bees to butterflies, beetles and more, field experiments show.

«We found that these wildflowers produce one - third fewer seeds in the absence of just one bumblebee species,» says Emory University ecologist Berry Brosi, who led the study.

Two bumblebee species have got 25 per cent shorter in 40 years, allowing them to feed from shorter flowers as warming makes deeper ones vanish

The study is the first to link exposure to thiamethoxam — one of the most commonly used neonicotinoid pesticides — to fewer fully developed eggs in queens from four wild bumblebee species that forage in farmland.

When they looked at the flowers visited by the alpine bumblebee species, they found that the bees» favorite flowers had not shifted to a shallower form, but were less prolific.

They resurveyed bumblebee species in the same alpine locations between 2012 and 2014 and measured their tongue lengths.

Rising temperatures in alpine habitats worldwide have resulted in declines in flowering among indigenous plants and contributed to dramatic declines in populations of several bumblebee species prevalent in those regions.

She and her colleagues have documented deep losses in North American native bumblebee species, and she's now studying whether pathogens spilling over from commercial bees are playing a role.

The rusty patched bumblebee, Bombus affinis, recently became the first U.S. bumblebee species to be placed on the endangered species list, but a Kansas State University entomologist says bumblebee endangerment is nothing to be bugged about.

Not exact matches

The Chicago Academy of Sciences / Peggy Notebaert Nature Museum is the lead partner coordinating regional efforts to conserve four different species, the monarch butterfly, smooth green snake, rusty patched bumblebee, and the regal fritillary butterfly.

We are also lead partners on two other species, the Monarch Butterfly and the Rusty Patched Bumblebee, and are currently working with Chicago Wilderness developing strategies to protect these species throughout the region.

She points out three species of bumblebee, each with a unique pattern of black and yellow stripes.

Deformed wing virus appeared in 36 percent of honeybees and 11 percent of the multiple species of bumblebees tested.

The United Kingdom has about 250 species of bees, of which one is the honeybee, 25 are bumblebees and the remainder are so - called solitary bees, which, because they do not provide honey and are not as picturesque as the hairy bumblebees, are mostly under the research radar.

«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.»

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

A species of bee from Europe that has stronger resistance to parasite infections than native bumblebees has spread across the UK, according to new research at Royal Holloway, University of London.

The arrival of tree bumblebees could be hugely beneficial to us by absorbing parasite pressure from our native species, as well as helping to pollinate wild plants and crops.»

Another study concluded that four species of American bumblebees have lost up to 87 percent of their habitat, slashing their ranks by 96 percent.

Losses were reported among four species of native bumblebee as well.

In the laboratory, Gegear and his students observed the behavior of foraging bees using arrays of paper flowers that mimicked the blooms of Mimulus lewisii (purple monkey flower), which is pollinated primarily by bumblebees, and a related species, Mimulus cardinalis (scarlet monkey flower), which is pollinated primarily by hummingbirds.

The study finds that the region's Swallowtail Butterfly, which can't be found anywhere else in the UK, is at risk — along with three quarters of bumblebee, grasshopper and moth species.

The ecologists used a species of nightshade plant (Solanum rostratum), which was buzz - pollinated with captive bumblebees of varying sizes.

For bumblebees specializing in just a few species, that meant there were too few flowers to go around.

This evolutionary ecologist, from the State University of New York at Old Westbury, and her colleagues measured tongue lengths of two species of bumblebees, Bombus balteatus and B. sylvicola, collected between 1966 and 1980 and again between 2012 and 2014.

Kerr and his colleagues analysed more than 420,000 records of bumblebee sightings and activity between 1901 and 2010, and covering 67 species — 31 in North America and 36 in Europe.

Across the steps of the pollination process, from patterns of bumblebee visits to plants, to picking up pollen, to seed production, the researchers saw a cascading effect of removing one bee species.

If a single, dominant species of bumblebee mainly visits an alpine sunflower, for instance, other pollinators — including other species of bumblebees — are less likely to visit alpine sunflowers.