Sentences with word «leafcutter»

The word "leafcutter" refers to an animal or insect that cuts and collects pieces of leaves for various purposes such as building nests or feeding. Full definition
Now, a team of roboticists has managed to emulate the cooperation strategy of leafcutter ants with computer simulations of small, four - wheeled robots.
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).
The researchers also discovered another kind of bee, Megachile rotundata, an alfalfa leafcutter, was using pieces of polyethylene - based plastic bags to construct its brood cells.
A University of Arizona research team first studied this ant species because of its ability to farm not just fungi, like leafcutter ants do, but other crops as well.
The robots mimic leafcutter ants, which are masters of organization and cooperation.
Researchers working on the Ribeirão Preto campus of the University of São Paulo (USP) in Brazil have discovered that a bacterium found in the microbiota associated with leafcutter ant species Atta sexdens rubropilosa produces the so - called «trail pheromones,» i.e, the aromatic chemical compounds used by the ants to lay a trail to their nest.
NOW AND THEN A pupa of a modern leafcutter Megachile bee female (left) has the same basic look as a Megachile male (right, CT scan) that is at least 23,000 years old, having been preserved in the La Brea Tar Pits.
The first leafcutter bees from the Pleistocene epoch have turned up in the La Brea Tar Pits in Los Angeles.
Sulfluramid is an organofluorine which has been used against leafcutter ants in Brazil and cockroaches in the US, but has not yet been registered as a wasp poison.
In Atta leafcutter ants, the negative effect of the seminal fluid of other males was negated by secretion from the queen sperm - storage organ, suggesting that queens may control ejaculate competition after sperm storage.
On the ground, a river of tiny green leaves moved up the path, carried by industrious leafcutter ants.
See monkeys, crocodiles, tiny bats sleeping beneath leaves, lizards, and some amazing insects like leafcutter ants!
The kids run six to eight different insect hotels, hosting mason and leafcutter bees to populate their gardens and be shared with other schools.
We know, for example, that birds alter calls to be heard over city noise and leafcutter ants adapt to elevated temperatures in an urban heat island.
«The leaves carried to their nests by these leafcutters actually serve as a substrate for the cultivation of Leucoagaricus gongylophorous, the fungal species on which they feed.
The leafcutters help roots to penetrate to great depth by softening the soil and depositing organic matter beneath the surface of the ground.
Drawing inspiration from the leafcutters, Eliseo Ferrante, a roboticist at the University of Leuven in Belgium, and colleagues designed robots whose objective was to gather cylindrical blocks — the analog of leaves — at the top of a ramp and return them to a «nest» area at the bottom.
Within this framework, each robot could be programmed to mimic the roles of the leafcutters: Droppers followed the light to the top of the ramp, picked up blocks, and dropped them back down the slope; collectors stayed at the bottom of the ramp to pick up the blocks and carry them back to the nest; and generalists both collected blocks from the top of the ramp and carried them all the way back to the nest.
Also presented are possible alternative approaches to tackling infections, such as phages (viruses that kill bacteria) sourcing new antibiotic leads from oceans, soils and host - associated microbiomes in humans, komodo dragons and leafcutter ants.

Phrases with «leafcutter»

a b c d e f g h i j k l m n o p q r s t u v w x y z