Sentences with phrase «sex pheromones in»

Alex Bender - «Quantification of Vasotocin Release in Response to Sex Pheromones in Roughskin Newts» (Advisors: P. Dickinson and R. Thompson)

Megan Massa: Rapid Effects of Testosterone on Responsiveness to Sex Pheromones in Male Carassius auratus

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

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.

«I was certain that it would be a small molecule, like sex pheromones in sea anemones or something along those lines.

Not exact matches

They discovered that pheromones secreted by the male mouse activate these neurons which, in turn, transmit this signal to another population of neurons (gonadotropin - releasing hormone neurons) to drive attraction to the opposite sex.

They did this by disabling an enzyme in «a» cells that usually destroys the «same - sex» pheromone.

«Right about five o'clock in the afternoon — we call it the rush hour — the beetles climb to the top of the trees and release a sex pheromone that travels on the wind.

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.

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

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.

Many previous studies have examined the role that sex - specific pheromones or semiochemicals play in the evolution of a spider's reproduction cycle.

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.

In essence, the question is which came first, a new species or its sex pheromone?

RS also turns up in the male sex pheromones of another species of wasp, N. giraulti, whereas RR appears to be unique.

Maures et al. (p. 541, published online 29 November) explored why the presence of abundant mating - competent males causes a decrease in the life span of nematodes of the opposite sex and found that a secreted substance, possibly a pheromone, reproduced the effect of the males when transferred in the culture medium.

In moths, females emit a species - specific sex pheromone, consisting of a blend of biochemically related components, to which males are attracted.

In Adelaide, Professor Mike Tyler is exploring the possibility of using pheromones (e.g., sex - attractant chemicals) to help in toad - trappinIn Adelaide, Professor Mike Tyler is exploring the possibility of using pheromones (e.g., sex - attractant chemicals) to help in toad - trappinin toad - trapping.

In contrast, the Drosophila sex pheromone cVA is detected by both sexes and elicits dimorphic behavior by routing the signal via different third order neuronal circuits deep in the brains of males and females [19In contrast, the Drosophila sex pheromone cVA is detected by both sexes and elicits dimorphic behavior by routing the signal via different third order neuronal circuits deep in the brains of males and females [19in the brains of males and females [19].

But rather than changes in doublesex itself, these studies revealed changes in downstream targets of dsx, via changes to specific DNA sequences to which DSX protein binds in the cis - regulatory regions of the bric - a-brac and desatF genes and affecting sex differences in abdominal pigmentation and pheromone production.

Mice of both sexes appear capable of detecting this pheromone, suggesting the differential response is due to modifications in the downstream neural circuitry [4].

In silk moths, this is achieved by only males expressing the receptor BmOR - 1 in their antenna, which detects the female - specific sex pheromone bombykol [18In silk moths, this is achieved by only males expressing the receptor BmOR - 1 in their antenna, which detects the female - specific sex pheromone bombykol [18in their antenna, which detects the female - specific sex pheromone bombykol [18].

Thus diversity in receptor expression can explain differences in odor sensitivity, but does not appear to dictate whether sex pheromones are differentially detected by males or females.

Before then, they assumed that B. germanica didn't need a volatile sex pheromone because the cockroaches live in close quarters where males could easily find females, Schal says.

However the contraceptive pill tampers with this cycle, so your smell receptors aren't as responsive to the male (or female) pheromone, and may reduce your interest in sex.

When a dog sniffs the faeces and the anal regions of another dog it is finding out important information via the pheromones in the scent, including the other dog's sex and sexual status.

His specialty is explaining scientific studies for lay audiences, including recent stories about riverless urban areas in the Great Lakes Basin, the impact of climate change on rare plants and the use of sex pheromones to combat the invasive sea lamprey.