Navigation Links
Zebra finch males prefer females with exaggerated maternal traits

Researchers have demonstrated that learning about the appearance of their parents may give birds a preference for mates with exaggerated parental traits, rather than traits that more exactly match those of their parents. Such learned mate preferences may help drive the evolution of exaggerated traits and strong morphological differences between sexes ?phenomena seen frequently in birds and other animals. The findings are reported by Carel ten Cate, Machteld Verzijden and Eric Etman of Leiden University, and appear in the June 6th issue of Current Biology.

In most bird species, young individuals take their parents as a model for what their later sexual partner should look like. This is the process of sexual imprinting, made famous by the Nobel prizewinner Konrad Lorenz. Nonetheless, most birds prefer mates in which specific traits are exaggerated compared with those of their parents. Because learning about a specific stimulus usually leads to a preference for this familiar stimulus over an unfamiliar one, it has generally been assumed that imprinting itself could not give rise to preferences for novel, exaggerated traits.

In their new work, the researchers tested the sexual preferences of zebra finch males that were raised by white parents differing in beak color. For one group of males, the researchers painted the beak color of the mother orange and that of the father red; for another group, the mother got a red beak and the father an orange one. When the males reached adulthood, they were tested with females with a spectrum of beak colors ranging from extreme orange to extreme red. Males in both groups preferred females with beaks that were more extremely colored than their mothers' beaks. This "peak shift" effect is known from other learning processes in which animals learn to distinguish different stimuli, but the presence of this effect in the imprinting process has not been demonstrated previously. The outcome of the study shows that the skewed
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. Zebrafish may hold key to understanding human nerve cell development
2. Zebrafish may hold key to improved cancer research
3. Zebra finches remember songs dad sang
4. Darwins famous finches and Venters marine microbes
5. Mother birds increase progesterone to hatch females
6. Male elephants woo females with precise chemistry
7. New study explores beetle species with two forms of females
8. Male rivalry increases when females at most fertile, say researchers
9. Brain differences could explain why males and females experience pain relief differently
10. Insects that produce males from unfertilized eggs reveal a surprising cellular feat
11. UCLA study finds same genes act differently in males and females
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Zebra finch males prefer females with exaggerated maternal traits

(Date:8/25/2015)... CITY and BELLEVUE, Wash. ... leader in advanced robotic systems, announced today it will ... unmanned ground vehicle (UGV), at the National Tactical Officers ... The Guardian S is the first-ever ... culmination of years of research and in-field trials and ...
(Date:8/24/2015)... MOUNTAIN VIEW, Calif. , Aug. 24, 2015  Based ... & Sullivan recognizes DERMALOG with the 2015 African Biometrics Company ... manufacturer and has achieved substantial commercial success in ... Nigeria , where it has implemented one of ... equipped 23 banks as well as the Central Bank of ...
(Date:8/20/2015)... , Aug. 20, 2015   Sensory, Inc ... improving the user experience and security of consumer ... today announced that its TrulySecure™ is ... software to be FIDO Certified™. The ... compliance with the FIDO UAF (Universal Authentication Framework) ...
Breaking Biology News(10 mins):Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 2Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 3Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 4Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 5Frost & Sullivan Applauds DERMALOG's Rise as the Supplier of Best-in-class Biometric Solutions in Africa 6TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5
... an investigational technology being developed to detect brain signals ... signals to control assistive devices, is about to begin ... on neuroscience, engineering and computer science research at Brown ... place at Massachusetts General Hospital (MGH), in close collaboration ...
... As Darwin observed, natural selection leading to adaptation ... the time. But over very long spans of time, ... the different ways organisms develop arose as outcomes of ... different groups of organisms. For example, most cats look ...
... to walking or galloping. But in reality, it,s no easy ... snakes move by pushing off of rocks and debris around ... Proceedings of the National Academy of Sciences says that ... scales provide friction with the ground that gives snakes a ...
Cached Biology News:Brain-computer interface, developed at Brown, begins new clinical trial 2Brain-computer interface, developed at Brown, begins new clinical trial 3Brain-computer interface, developed at Brown, begins new clinical trial 4Work of Field Museum scientist addresses question of chance in evolution 2
(Date:9/1/2015)... 2015 The Dohmen Company today announced ... MBA as Chief Science Officer (CSO) of Dohmen ... role, Dr. Floyd will lead Dohmen,s growing regulatory ... pre-commercial and post approval outsourced services in quality, ... Dr. Floyd brings decades of experience leading global ...
(Date:9/1/2015)... 1, 2015   Medfusion, Inc., a ... between doctors and patients, today announced a $3 ... -based venture capital firms.   ... with Bull City Venture Partners and Hatteras Venture ... and Executive Chairman. "Both firms, experience working at ...
(Date:9/1/2015)... ... September 01, 2015 , ... ... University of California Los Angeles, Boston University School of Medicine, Frederick National Laboratory ... PLOS One, the world’s first multidisciplinary Open Access journal. , Christopher Ryan ...
(Date:8/31/2015)... ... August 31, 2015 , ... The Global Supply Chain ... management and resiliency practitioners with luminaries and thought leaders to advance the professional ... for their innovations and performance excellence. At that time its principle sponsor, ...
Breaking Biology Technology:Dohmen Life Science Services Appoints Eric Floyd, Ph.D. as Chief Science Officer 2Dohmen Life Science Services Appoints Eric Floyd, Ph.D. as Chief Science Officer 3Medfusion Secures Funding to Continue Evolution and Advance Mobile Strategy 2Medfusion Secures Funding to Continue Evolution and Advance Mobile Strategy 3Synedgen’s Director for Pharmaceutical Manufacturing Publishes New Research 2Synedgen’s Director for Pharmaceutical Manufacturing Publishes New Research 3Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 2Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 3
... The single-atom thick material graphene maintains its high ... step to advancing the material from a laboratory phenomenon ... devices, researchers report in the April 9 issue of ... engineers and theoretical physicists from the University of Texas ...
... Mechanical Engineering at Stevens Institute of Technology was named ... (YIP) award by the Office of Naval Research (ONR). ... exceptional promise for creative study. "We are proud ... said ONR,s Director of Research Dr. Michael Kassner. "Through ...
... ... Regulatory Submissions , ... Rockville, MD (Vocus) April 8, 2010 -- Bringing its popular interactive workshop to Europe ... eCTD Submissions in Brussels, 5–7 May. This introductory workshop guides participants on how to ...
Cached Biology Technology:With support, graphene still a superior thermal conductor 2Dr. Chang-Hwan Choi honored with prestigious Young Investigator Award 2Dr. Chang-Hwan Choi honored with prestigious Young Investigator Award 3RAPS to Host eCTD Submissions Workshop in Brussels 2RAPS to Host eCTD Submissions Workshop in Brussels 3