Navigation Links
Peacock love songs lure eavesdropping females from afar
Date:12/20/2012

Durham, NC Deep in the scrublands of Keoladeo National Park in northwest India, one thing was hard for biologist Jessica Yorzinski to ignore: It wasn't the heat. It wasn't the jackals. It was the squawks of peacocks in the throes of passion.

From behind the trees in the distance, she could hear a loud two-part whoop, the distinctive call that male peacocks make right before mating.

During the peacock courtship dance, a male announces that he's ready to make his move by dashing towards the object of his affection and emitting a singular squawk before mounting his mate.

"Peacocks have a number of different courtship calls, but this is the only one specifically associated with the moment before copulation, a time when the female is finally right in front of the male. It's called the hoot-dash display," said Duke University researcher Jessica Yorzinski.

The amorous peacock's signature hoot poses a puzzle for scientists.

For one, he's already got the girl.

"By that point she's already right there, checking him out. You'd think that he might not need another signal at such a late stage in the courtship process," Yorzinski said.

What's more, the calls could alert potential predators that an easy meal is near. Wild peacocks make quick snacks for jackals, tigers and hawks in their native habitat in South Asia.

"In a sense, they're advertizing that they're distracted and vulnerable. It would be wise for a predator to capitalize on that," Yorzinski said.

Intrigued, Yorzinski recorded the loud carrying-on of males in mid-conquest. Then she played the calls to free-ranging females in India and videotaped their reactions.

At each site, a loudspeaker played copulation calls on one day and silent controls on another day.

The result: the recorded love sounds made by amorous peacocks in the throes of passion drew eavesdropping females from afar. Females approached and spent
'/>"/>

Contact: Robin Ann Smith
ras10@duke.edu
919-668-4544
National Evolutionary Synthesis Center (NESCent)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Computer viruses could take a lesson from showy peacocks
2. Birds that live with varying weather sing more versatile songs
3. Team discovers reason that male moths can keep finding females
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Peacock love songs lure eavesdropping females from afar
(Date:9/15/2014)... of wild, domesticated, and domesticated-wild hybridized populations ... found that within 5 to 11 generations, ... wild populations that hybridized with domesticated populations. ... provides evidence that natural selection, over time, ... experience as a result of increased genetic ...
(Date:9/15/2014)... unprecedented evolution experiment scientists from GEOMAR Helmholtz Centre ... of Sea Fisheries have demonstrated for the first ... of the world,s oceans, Emiliania huxleyi , ... water temperatures. In their study, the researchers found ... adaptations to these two aspects of climate change ...
(Date:9/15/2014)... subsequent rapid decrease in the water level of Lake ... kilometres of new, fertile land in eastern Finland. A ... has studied the role that the decrease in water ... humans. After dramatic shifts in the waterways, human life ... to a new, innovative culture. This stemmed from an ...
Breaking Biology News(10 mins):Small algae with great potential 2Small algae with great potential 3The creation of the Vuoksi River preceded a significant cultural shift 2
... Fla. --- The BP Deepwater Horizon oil spill temporarily worsened ... but there may be cause for optimism, according to a ... Proceedings of the National Academy of Sciences found ... 30 feet from the shoreline and this plant die off ...
... 12th International Coral Reef Symposium (ICRS 2012), the world,s ... years, will begin Monday, July 9, in Cairns, Queensland, ... who are in attendance, and accessibility to this information ... online media portal to journalists worldwide. In addition to ...
... manage to react to their environment is not yet ... El-Mashtoly from the RUB Department of Biophysics, led by ... the molecular interactions during aerotaxis of Bacillus subtilis ... the oxygen concentration in the environment. The research team ...
Cached Biology News:BP Deepwater Horizon oil spill exacerbated existing environmental problems in Louisiana marshes 2BP Deepwater Horizon oil spill exacerbated existing environmental problems in Louisiana marshes 3Topics to be discussed during July International Coral Reef Symposium 2Topics to be discussed during July International Coral Reef Symposium 3Topics to be discussed during July International Coral Reef Symposium 4Topics to be discussed during July International Coral Reef Symposium 5How bacteria change movement direction in response to oxygen: Molecular interactions unravelled 2
(Date:9/15/2014)... , Sept. 15, 2014 Zymo Research ... transport solution for safe ambient temperature storage and ... testing. Importantly, the infectivity of agents in such samples ... the integrity of the viral nucleic acids for ... recent Ebola epidemic in West Africa ...
(Date:9/15/2014)... (PRWEB) September 15, 2014 Applied ... implantable silicones for the medical device and critical ... gel for the implantable medical device market. ... crosslink technology delivering a silicone gel with improved ... Dual Matrix technology consists of two crosslinked networks ...
(Date:9/15/2014)... , Sept. 15, 2014  The second annual ... celebrated October 12-18. A joint initiative of the ... member companies , IPAW is designed to: ... , Recognize the contributions of plasma donors in saving ... plasma protein therapies and rare diseases ...
(Date:9/14/2014)... when it comes to survival strategies. They often create ... for example during treatment with antibiotics. A biofilm is ... slime capsule consisting of sugar chains and "curli". ... the first time created a detailed three-dimensional image of ... the bacterial cell wall, a crucial step in the ...
Breaking Biology Technology:Safe storage and transport of Ebola, Mers-CoV, and other viruses: Groundbreaking viral inactivation solution capable of preserving nucleic acids 2Safe storage and transport of Ebola, Mers-CoV, and other viruses: Groundbreaking viral inactivation solution capable of preserving nucleic acids 3Applied Silicone Launches Silicone Gel System with Dual Matrix Technology 2International Plasma Awareness Week To Celebrate Donors And Spotlight Rare Diseases 2International Plasma Awareness Week To Celebrate Donors And Spotlight Rare Diseases 3New insights in survival strategies of bacteria 2
... 7 LifeCell Corporation,(Nasdaq: LIFC ), today announced ... to the final settlement of a claim that arose ... expected to reduce,diluted net income per share by approximately ... 2008, since the Company,s 2007,financial statements were not yet ...
... Calif., Feb. 7 Avicena Group, Inc.,(OTC Bulletin ... nervous system therapeutics for neurodegenerative,disorders, announced today that ... will present an overview of the company,s,ongoing clinical ... & Investor,Conference to be held February 11-13, 2008 ...
... Inc., a,biotechnology company focused on the development of ... announced today,that its co-founder and CEO Mitchell P. ... from the American College of Critical Care,Medicine during ... of Critical,Care Medicine held February 2-6 in Honolulu, ...
Cached Biology Technology:LifeCell Corporation Revises Full Year 2007 Preliminary Results and Schedules Fourth Quarter 2007 Financial Results Conference Call; February 27, 2008 at 10:00 a.m. Eastern 2Avicena Group to Present at 10th Annual BIO CEO & Investor Conference 2Avicena Group to Present at 10th Annual BIO CEO & Investor Conference 3Logical Therapeutics Co-Founder and CEO Honored with a Distinguished Investigator Award from the American College of Critical Care Medicine 2
Newborn Bovine Serum Heat-Inactivated...
... MagicMark XP Western Protein Standards are ... protein molecular weight estimation directly on ... an IgG binding site, allowing direct ... used to detect your target protein ...
... is the most effective ... PCR products. TOPO TA ... TOPO vectors are supplied ... topoisomerase I. This enables ...
... Conjugated peptides or recombinant proteins are ... produce antibodies in 2 rabbits. pre-immune and ... test until the titer reaches 1:4,000 Western ... Protein G purification Antibodies are eluted using ...
Biology Products: