HOME >> BIOLOGY >> NEWS
Female pronghorns choose mate based on substance as well as show

When a female animal compares males to choose a mate, she can't order a laboratory genetic screen for each suitor. Instead, she has to rely on external cues that may indicate genetic quality. Until now, biologists have focused on elaborate ornaments, such as the peacock's tail, as cues that females might use.

The thorny problem has been to explain how the correlation between male genetic quality and ornament quality can be maintained. If an ornament gives a male a mating advantage, then evolution would rapidly move to the point where all males, regardless of genetic quality, have high-quality ornaments.

"Female mate choice is likely a very important evolutionary force that does much more than select for ornaments in a few species," said John Byers of the University of Idaho. "It may be universally important in maintaining population genetic quality."

In work supported by the National Science Foundation (NSF), Byers has shown that certain females can choose good genes in a species that does not have ornaments, such as the American pronghorn, an antelope-like mammal that evolved in North America. Byers has been studying pronghorn at the National Bison Range, a 30-square-mile National Wildlife Refuge in northwestern Montana, for 20 years, and recognizes all individual pronghorn in the population.

In recent research, Byers and his coauthor Lisette Waits, also of the University of Idaho, obtained genetic markers for all pronghorn individuals in the population and assigned paternity to the offspring.

"The females' mate sampling creates a small group of males that each year sire more than one-half of all young," said Byers, who is currently serving as a program officer in NSF's biological sciences directorate. "These are the males that, under the stringent female sampling process, have shown they are the most vigorous."

The offspring of these vigorous males also are more likely to survive to weaning, Byers found. "Th
'"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
23-Oct-2006


Page: 1 2

Related biology news :

1. Female gender provides an advantage in renal diseases
2. Females more prone to brain damage from alcohol abuse
3. Female iguanas pay high costs to choose a mate
4. Female-led infanticide in wild chimpanzees
5. Female ticks have market on gluttony
6. Females do best if they wait a while
7. Female chimps keep the bullies at bay
8. Female Antarctic seals give cold shoulder to local males
9. Female birds boost up their eggs when hearing sexy song
10. Female guppies risk their lives to avoid too much male attention
11. Females, alcohol and hormones

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/14/2019)... ... 2019 , ... Join Anguraj Sadanandam, PhD, Team Leader, Systems ... (ICR) in a live webinar on Wednesday, September 4, 2019 at ... diagnostic development including machine learning approaches in different gastrointestinal cancers and their translational ...
(Date:8/9/2019)... , ... August 09, 2019 , ... With a demand ... more and more patients will visit urgent care centers (UCC) in the coming years, ... The report, The Market for Urgent Care Centers , is a detailed look ...
(Date:8/6/2019)... ... August 06, 2019 , ... VetStem Biopharma ... regulatory and GMP manufacturing experience. In November it spun out a human ... regulatory experience and one of the first cGMP cell manufacturing facilities in ...
Breaking Biology News(10 mins):
(Date:8/15/2019)... ... August 15, 2019 , ... PathSensors ... Lawrence is a member of the Institute of Food Technologists (IFT) Board of ... Advisory Board, Joint Institute for Food Safety and Applied Nutrition (JIFSAN) Advisory Council ...
(Date:8/8/2019)... ... August 08, 2019 , ... Inference Solutions , ... organizations, today announced that the company’s Studio Intelligent Virtual Agent (IVA) platform earned ... Inference will officially accept the award at Frost & Sullivan’s annual Excellence in ...
(Date:8/6/2019)... (PRWEB) , ... August 06, 2019 , ... ... tools for characterizing microbiome populations down to the strain level, has announced partnerships ... kits and other products to companies and research organizations in Australia, Benelux, Indonesia, ...
(Date:8/4/2019)... ... August 02, 2019 , ... Cirtec Medical Corporation, a strategic outsourcing partner for ... has begun construction on a 30,000 sq. ft. manufacturing facility in the Coyol ... , The facility, which is expected to be fully operational by the end of ...
Breaking Biology Technology:
Cached News: