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:


(Date:4/11/2017)... BROOKLYN, N.Y. , April 11, 2017 /PRNewswire-USNewswire/ ... identical fingerprints, but researchers at the New York ... University College of Engineering have found that partial ... fingerprint-based security systems used in mobile phones and ... previously thought. The vulnerability lies in ...
(Date:4/5/2017)... -- KEY FINDINGS The global market for ... of 25.76% during the forecast period of 2017-2025. The ... the growth of the stem cell market. ... INSIGHTS The global stem cell market is segmented on ... stem cell market of the product is segmented into ...
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
Breaking Biology News(10 mins):
(Date:6/27/2017)... ... 2017 , ... According to a recent report from the ... have negative short- or long-term effects on benthic communities. , The ESTCP ... at the Puget Sound Naval Shipyard & Intermediate Maintenance Facility in Bremerton, Washing. ...
(Date:6/26/2017)... ... June 26, 2017 , ... ... Kirkegaard, the former Associate Director of Product Development R&D at Allergan and CMC ... products at both start-up and established biopharma companies, has joined the firm as ...
(Date:6/26/2017)... ... , ... Two new members were elected to the University City Science Center’s ... President, J Nowak Strategy and Michele Masucci, Ph.D., Vice President for Research Administration at ... and Kenneth L. Kring, and re-election of David P. Holveck and Richard P. Jaffe, ...
(Date:6/23/2017)... ... June 23, 2017 , ... Ken Hanson, a medical imaging research scientist at ... been selected as this year’s recipients of two top awards from SPIE, the ... with other honorees to accept their awards at a banquet in San Diego, California, ...
Breaking Biology Technology:
Cached News: