Sentences with phrase «female pheromone»

The males that were exposed to female urine for two months lost the neurons that responded to the female pheromone.

Male cockroaches can «see» the spatial distribution of female pheromones to locate a sexual mate, according to researchers from Hokkaido University and the University of Konstanz.

In the lab, male and female mice are kept in separate cages, so females are chronically exposed to female pheromones in their own urine and that of their cage - mates.

In nature, they would likely never be so chronically exposed to female pheromones that they would lose the ability to detect them.

To find out whether sex hormones affect the number of neurons devoted to detecting female pheromones, the researchers removed the testes from male mice and the ovaries from females.

Then the team allowed unaltered males to choose between scent trails of altered males, large and small females, unaltered males, and she - males (unaltered males that naturally emit small amounts of female pheromones).

The researchers played a dirty trick on some male fruit flies, housing them with other males that had been genetically altered to exude female pheromones, or scent molecules.

Not exact matches

Males and females exchange hormones called «pheromones» and these are the cause of the chemical attraction between them.

I would personally add some celery here for some texture, and to enhance the female response to male pheromones.

Researchers have tried lamprey - specific poisons to control their numbers, but more out - of - the - box ideas include using artificial lamprey pheromones to lure them to their doom, and designing a birth control drug that would only affect female lampreys.

After the insects invaded North America in the early 20th century, farmers discovered that pheromone - laced traps could tempt males away from females and from maize crops that the moths infest.

After conducting a range of different experiments, the researchers discovered that some of the chemicals left behind by the females, called sex pheromones, were largely responsible for keeping the males awake.

We're able to sense even tiny quantities of a female fruit fly pheromone, meaning one can ruin your wine no matter how quickly you remove it from your glass

Male wasps normally seek out females by sniffing for their pheromones, signaling chemicals that they produce.

But the flowers that Gaskett studies, called tongue orchids, can produce a molecule that precisely mimics the pheromone made by the females of the species Lissopimpla excelsa, commonly known as dupe wasps.

With its odor - sensitive antennae, the moth senses a target smell — in this case, female silkworm sex pheromones — and walks toward it along the trackball, driving the robotic car.

Normally, fruit fly females decide whether or not to mate within 15 minutes of a male courting them by dancing, singing (with their wings), and releasing pheromones.

In the lab, and in field experiments, female brown rats readily enter trap boxes baited with the male brown rat's sex pheromone.

Using microelectrodes, the researchers recorded the electrical activity of pheromone - sensitive interneurons in male American cockroaches that relay signals of female - producing sex pheromones in the antennal lobe (functional homolog to the mammalian olfactory bulb) to higher - order centers.

The strong scent of this pheromone — also called oil of wintergreen and found consumer goods including Listerine mouthwash and chewing gum — wards off other potential mates, helping to ensure that no other males fertilize the female's eggs.

A similar discovery in fruit flies, reported in an earlier independent study, which shows that a particular sex pheromone enhances female sexual behaviors and male aggression via separate neural circuits between the sexes, suggests that a sexually distinct circuit may be a universal strategy for converting male pheromone information into appropriate behavioral output.

Ever since a pheromone secreted by a female moth that attracts the opposite sex was identified in 1959, scientists have pinned down numerous chemicals that affect behavior in a wide variety of animal species, from insects to mammals to humans.

Different species have different pheromone receptors, and so the ability to most accurately smell females of the same species prevents attraction to other females.

In its study, the research group used a male pheromone, secreted from the tear gland, called ESP1 that has been shown to enhance sexual behaviors in female mice, while promoting aggression in males exposed to ESP1 in conjunction with unfamiliar male urine.

How does a male moth find the right type of female for mating when there are two similar types luring him with their pheromones?

The experiment, Dulac adds, implies that the neuronal circuits for «male» behavior exist in the brains of female mice and that the animals» VNO, by sensing pheromones, controls which sexual behavior repertoire is expressed.

Artificial illumination also misleads female cabbage moths into skimping on production of their usual sex pheromone lure.

Pheromones have also been used successfully for pest control purposes: the female attractant is employed as bait to lure males into pheromone traps.

The sexual attractant used by female silkworm moths, bombykol, was the first pheromone to be identified and its effect on males proven (this occurred in the late 1950s).

Female insects emit sex pheromones in order to attract potential mating partners.

«The novel pheromone activates two different circuits: one is involved in courtship and mating of males and females, the other one in aggregation,» Markus Knaden, who led the studies, explains.

«Mice have an organ in their nose called the vomeronasal organ, or VNO, that together with the brain detects the pheromones that male and female mice secrete,» Catherine Dulac explains.

Yet the female sex pheromone?

The newest measure involves hijacking a sex pheromone that male lampreys use to attract females.

According to lead author of the study, Dr Marinus De Jager of Stellenbosch University: «Since the discovery that the floral scent of these remarkable orchids mimics female sex pheromones, many of these compounds have been made in the laboratory.

Females can detect pheromones at distances of at least 2 kilometers and are lured to traps expecting a sexual encounter, while males are left with fewer mates.

Many orchids are masters of sexual deception, tricking male insects into pollinating their flowers by producing chemicals that precisely mimic female insects» sex pheromones.

The scientists found that altered males and large females were equally attractive to unaltered males and that their pheromone blends were identical, the team reports in The Journal of Experimental Biology.

Sex pheromones wafting from a female's skin drive males crazy, but how they work has long been a mystery.

A specific kind of neuron found only in male mice and that detects a pheromone in female urine has been identified by researchers at Washington University School of Medicine in St. Louis.

But these are usually volatile pheromones that disperse quickly, and it has remained unclear what exactly stimulates a female to be attracted to a specific male.

In this case, the differences between males and females was due not to innate factors — as you might expect for a pheromone - sensing system — but instead to different sensory experiences.»

Pheromones released by females draw the attention of male mice and trigger courtship and mating behavior.

Previous investigations focused on the chemicals as sexual attractants — studying a male pheromone's effect on female mood and behavior, for example.

It seemed that in order for males to evolve new pheromones, the female insects would need some preexisting adaptation that would cause them to prefer the new chemical blend.

If N. vitripennis females ultimately come to prefer the RS - RR pheromone blend, they must eventually start associating it with males of their own species and evolve a way to recognize it.

Researchers have found that female false garden mantises (Pseudomantis albofimbriata, pictured) that were fed just a quarter of what others got actually produced more pheromones than well - fed females — and attracted almost twice the number of males.

Female fruit flies produce a pheromone to attract males.

And in glasses of Pinot Blanc that had been tainted by female fruit flies or trace amounts of pheromone, the tasters found the taste «somewhat unpleasant» when as little as 1 nanogram of the pheromone was present (doi.org/10.1101/206375).

A male and female moth of the European Corn Borer Ostrinia nubilalis: understanding the pheromone communication in this insect may contribute to a better pest control.