courtship 2 1

Tag: "courtship" at biology news

Electric fish conduct electric duets in aquatic courtship

...ectric signal] is a male advertisement call during courtship in this species," said Wong, noting that the males...displays and 11 specific pulse sequences common to courtship and mating. "Knowing the electrical and motor patterns during courtship allows for further explor...

A rarity among arachnids, whip spiders have a sociable family life

...tudies have focused mainly on the adult's dramatic courtship and fighting behaviors. Rayor believes that because young amblypygids slip easily into tight crevasses and their coloring matches their backgrounds, the social behavior of the youngsters has been missed in the wild. Rayor's research on two species ...

Microfluidic chip helps solve cellular mating puzzle

...them, called Fus3, appeared to be in charge of the courtship process, while the other was thought to be moonlighting away from its main job in another signaling pathway. "The role of the second type of MAPK was unclear," said Saurabh Paliwal, a doctoral student in Levchenko’s lab and lead author of the...

With fruit fly sex, researchers find mind-body connection

...the fruitless gene, active only in males, controls courtship and sexual receptivity by repressing female behavi...have found that a web of interacting genes control courtship and receptivity. McKeown wanted to settle the debate. McKeown suspected that multiple genes shape...

For crickets, parasitic flies can stop the music

...h as guppies, it is rare to observe obvious female courtship behaviors. Female crickets, by contrast, actually mount the males, so it is easy to know what they are choosing. Also, she said, the complete absence of parasitic flies in spring allows the researchers to examine the role of flies as a selective pres...

Fighting like a girl or boy determined by gene in fruit flies

...-bending fruit flies were first developed to study courtship in the Austrian lab of co-author Barry Dickson, di...emale flies with the male version. In Dickson's courtship studies, male fruit flies with the female fruitless gene were not acting like males, but it wasn't c...

Electric fish in Africa could be example of evolution in action

...h of signals, indicating, for example, aggression, courtship and fear. While the fish may be able to understand other species' impulses, said Arnegard, "They seem to only choose to mate with other fish having the same signature waveform as their own." Except for some, Arnegard has discovered. When he joined ...

Fly's courtship sheds light on the formation of innate behaviors

...sing mutations that perturb the stereotypical male courtship behavior of the fruit fly Drosophila melanogaster....d to have an additive effect on the success of the courtship behavior as a whole. Studying various mutants, the researchers were able to uncouple the later ste...

Female guppies risk their lives to avoid too much male attention

... of their time displaying to females. But if their courtship displays don't impress the females, males will attempt to sneak mating with them when they aren't looking," says Croft. Male guppies are brightly colored to attract female attention, while female guppies are a dull brown color. The researchers show...

Bird brains shrink from exposure to contaminants

...tive to reproductive hormones--song production and courtship behaviour--were most affected by DDT," said Iwaniuk. "Song production is extremely important in attracting a mate or to mark out a territory. "The issue is not that DDT is killing these robins but if they are growing up in this one area and then mo...

'Scent of a woman' tells male redback spiders to find a mate

...at these males need the extra fat for the extended courtship rituals preferred by females -- males are supposed to pluck and vibrate a female's web strings for up to eight hours -- and displeased females will flick males away or even off the web. The female, who produces a batch of 100 to 300 eggs every month...

Zebra finches remember songs dad sang

...cal behavior used in male-male interactions and in courtship of females, and in most songbird species, only the male sings." A young zebra finch will hear his father's song, remember and imitate it. At first, the bird's efforts are clumsy ?the songbird equivalent of a baby's first babbling syllables. But event...

'Banana-jawed' fossil mammal linked to rare sound-producing skill

...sed the chamber to produce sounds as part of their courtship or mating displays. According to DeBlieux, help in refining explanations behind this mammal's unusual jaw may come from studying dinosaur models. In particular, he said, a number of museums have built models of dinosaur sound-producing skeletal cavi...

Rutgers researchers scientifically link dancing ability to mate quality

Dance has long been recognized as a signal of courtship in many animal species, including humans. Better d...have suspected that dance so often plays a role in courtship because dance quality tracks with mate quality," said Lee Cronk, associate professor of anthropology...

Past experience of pheromones induces dominant courtship behavior in fruit flies

...archers were able to demonstrate that a male shows courtship dominance behavior over young males if he has been...ect was so strong that males carried on exhibiting courtship dominance behavior until they were five days old. The authors of the study note that similar findin...

Sudden change in social status triggers genetic response in male fish, study finds

...t males defend small territories that are used for courtship and breeding. However, dominance among male cichlids is reversible: If a subordinate successfully challenges a dominant male in a face-to-face confrontation, the dominant fish will lose his status and with it his vibrant coloring, black eyebar and th...

Single gene is genetic switch for fly sexual behavior

A male fly's sexual courtship of a female fly is a complicated business of tappi...he male form of Fruitless is critical for the male courtship ritual and males' preference for mating with females, as previous studies have shown. Now, Barry J....

Flies on speed offer insight into the roles of dopamine in sleep and arousal

...ctivity, and frenzied (but ultimately ineffective) courtship behavior are all characteristics of fruit flies on methamphetamine, the effects of which are known to act through the neurotransmitter dopamine. In the new work, the researchers showed that genetically engineered flies whose dopamine cells could be t...

Tufts researchers shine light on firefly mysteries

...tions, such as how much energy the males' "flashy" courtship displays require--an effort that will involve laboratory testing in tiny respirometry chambers to measure the carbon dioxide produced during flashing and resting. ...

Love's all in the brain: fMRI study shows strong, lateralized reward, not sex, drive

...tant reason ?to drive our forebears to focus their courtship energy on specific individuals, thereby conserving precious mating time and energy. Perhaps," she hypothesized, "even love-at-first-sight is a basic mammalian response that developed in other animals and our ancestors inherited in order to speed up t...

1 2