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:6/6/2019)... ... 2019 , ... Ziegler, a specialty investment bank, is pleased ... (PBM) on its recent acquisition by PathGroup. , Headquartered in Lewisville (Dallas), ... than one dozen hospitals and surgery centers in the Dallas-Fort Worth and broader ...
(Date:6/4/2019)... Calif. (PRWEB) , ... June 04, 2019 , ... Harper ... was limping. X-rays revealed severe elbow dysplasia, which caused painful osteoarthritis in the ... her elbows. Her parents were heartbroken. , The surgical specialist, Dr. Christopher Eich ...
(Date:6/3/2019)... ... ... Stay on top of current hot topics through free webinars presented by ... is free, so be sure to register today to save your place! Participate in ... see our upcoming webinars: , CLINICAL TRIALS , June 10 – A Novel Approach ...
Breaking Biology News(10 mins):
(Date:6/11/2019)... ... 10, 2019 , ... Advancements with Ted Danson will focus ... broadcast 4Q/2019. Check your local listings for more information. , Advancements will explore ... technology facilitates laboratories to improve efficiency and quality of research by providing comprehensive ...
(Date:6/11/2019)... , ... June 11, 2019 , ... ... and Carilion Clinic, a national leader in opioid treatment, announced today they are ... , Mytonomy recently deployed its virtual care platform at the Mayo ...
(Date:6/11/2019)... ... June 11, 2019 , ... ... from human mesenchymal stem cells (MSC-EV) are able to incorporate into human CD34+ ... a test on mice, MSC-EVs also increased the cells’ ability to lodge into ...
(Date:5/31/2019)... ... May 29, 2019 , ... For many years, the primary forms ... cancer demand breakthrough therapies. Advances in immuno-oncology have led to the advent of Chimeric ... with engineered T cell receptors known as “CARs”. The CAR enables the final product ...
Breaking Biology Technology:
Cached News: