HOME >> BIOLOGY >> NEWS
Female iguanas pay high costs to choose a mate

Picking a mate isnt easyif you are a female iguana. In a study published in the June 27th issue of the online, open-access journal PLoS ONE, Maren Vitousek of Princeton University and colleagues found that female Galpagos marine iguanas spend a lot of energy picking a mate from a wide range of suitors energy they could otherwise spend foraging, producing eggs, or avoiding predators.

Scientists have generally assumed that being choosy about potential mates carries low costs for females. These costs were thought to be particularly small when male territories are clustered together in groups, known as leks, which make it possible for females to assess many candidates without traveling far.

Vitousek and colleagues measured how much energy female iguanas expend on mate choice in the wild using miniaturized data loggers developed by Anthony Woakes at the University of Birmingham. They found that females devote a surprising amount of effort to picking among males on a lek, even though they appear to gain only genetic material from their chosen mate. Visiting attractive males (males that display more often) carries the highest costs. The longer female iguanas spend in the company of these appealing suitors the more weight they lose, and the smaller the eggs they subsequently produce.

Being choosy about potential mates can also decrease a females chances for survival. During El Nio years marine iguanas have a hard time finding food, and those that start the season at a low body weight are less likely to live through it.

To make these costs worthwhile, the genetic or other payoffs females gain from their chosen mates must be substantial. Ongoing research is aimed at quantifying the magnitude of these benefits in order to gain a complete picture of the way mate choice works in this species.

These findings provide some of the first evidence that selecting a desirable partner is energetically costly for f
'"/>

Contact: Maren Vitousek
mvitouse@princeton.edu
609-258-7925
Public Library of Science
27-Jun-2007


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-led infanticide in wild chimpanzees
4. Female ticks have market on gluttony
5. Females do best if they wait a while
6. Female chimps keep the bullies at bay
7. Female Antarctic seals give cold shoulder to local males
8. Female pronghorns choose mate based on substance as well as show
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:
TAG: Female iguanas pay high costs choose mate

(Date:8/27/2014)... of fish began exploring land and evolved into tetrapods ... ancient fish used their fishy bodies and fins in a ... scientific mysteries. , Researchers at McGill University published in ... called Polypterus , to help show what might have ... water. Polypterus is an African fish that can ...
(Date:8/27/2014)... when it only requires nerve cells to rearrange existing ... to generate new patterns, a study of monkeys has ... through recordings of electrical activity of brain cell networks. ... of Health. , "We looked into the brain and ... outside the box," said Aaron Batista, Ph.D., an assistant ...
(Date:8/27/2014)... manipulating neural circuits in the brain of mice, ... memories. The research, led by Howard Hughes Medical ... of Technology (MIT), reveals that the connections between ... information about an experience and the part of ... that experience are malleable. , Altering those ...
Breaking Biology News(10 mins):Walking fish reveal how our ancestors evolved onto land 2Scientists plug into a learning brain 2Scientists plug into a learning brain 3Researchers change the emotional association of memories 2Researchers change the emotional association of memories 3Researchers change the emotional association of memories 4
(Date:8/28/2014)... PARK, Calif. , Aug. 28, 2014 /PRNewswire/ ... focused on developing novel mid- to late-stage cardiovascular ... $7.0 million in its first round of financing. ... Biomedical Investments and Hercules Bioventures with participation from ... entrepreneur and pharmaceutical executive, Dr. Larry Hsu ...
(Date:8/28/2014)... Earlier this month, a report was created ... U.S. Air Force on the performance of vehicles using ... type of fuel made from mustard seeds, offered great ... America’s Eco friendly future. In fact, every branch of ... independent of foreign oil over the next few years. ...
(Date:8/27/2014)... 27, 2014 Varian Medical Systems today ... current Salt Lake City manufacturing facility and allow for ... to ultimately create 1,000 new full time jobs in ... “Utah is home to hardworking people with immense engineering ... with Varian’s success in the manufacturing of our state-of-the-art ...
(Date:8/27/2014)... 2014 Reportlinker.com announces that a ... its catalogue: Global Biodegradable Packaging ... http://www.reportlinker.com/p02316661/Global-Biodegradable-Packaging-Materials-Market-2014-2018.html About Biodegradable Packaging ... readily decomposed by the action of microorganisms. ... in terms of raw materials, production technology, ...
Breaking Biology Technology:Armetheon Completes $7.0 Million Series A Financing 2Armetheon Completes $7.0 Million Series A Financing 3Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 2Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 3Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 4Can Small Farmers and a New Seed Based Biofuel “Green” the World? Major Universities and Even the U.S. Air Force Seem to Think So 5Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 2Varian Medical Systems Groundbreaking on Facility Expansion Triggers Influx of New Jobs to Salt Lake 3Global Biodegradable Packaging Materials Market 2014-2018 2Global Biodegradable Packaging Materials Market 2014-2018 3Global Biodegradable Packaging Materials Market 2014-2018 4Global Biodegradable Packaging Materials Market 2014-2018 5Global Biodegradable Packaging Materials Market 2014-2018 6Global Biodegradable Packaging Materials Market 2014-2018 7
Cached News: