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:10/16/2014)... efficiently, they are anything but sustainable: environmental damage ... is becoming increasingly evident. Despite their disadvantages, however, ... regarded as the sole possibility of achieving higher ... Bernhard Schmid, an ecology professor at the University ... agriculture and forestry. After all, a new study ...
(Date:10/15/2014)... Oct. 15, 2014 Sandata Technologies, LLC, ... and community-based care, today announced it released a ... Santrax® Electronic Visit Verification™ Solution (EVV™)  for Quality ... home health company founded in 1996 and has ... The study details the challenges ...
(Date:10/15/2014)... an unexpected extent. The outbreak does not follow the ... a new disease dynamic in regions, where it has ... National Academy of Sciences Leopoldina, acatech – the German ... the German Academies of Sciences and Humanities have presented ... the statement the academies call for the following consequences ...
Breaking Biology News(10 mins):Plant communities produce greater yield than monocultures 2Plant communities produce greater yield than monocultures 3Sandata Announces Case Study with Quality Care Services, Inc. 2Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5
(Date:10/20/2014)... , Oct. 20, 2014 Mapp Biopharmaceutical,s ... ZMapp™ antibody therapeutic to fight the Ebola outbreak ... and time-consuming the production of pharmaceuticals can be, ... publisher said that while some may be taken ... compound, those with industry knowledge are well aware ...
(Date:10/20/2014)... 2014  GenVec, Inc. (NASDAQ: GNVC ) today ... from its board of directors effective on October 24, 2014.  ... served as its chairman from June 2006 to November 2013.  ... Corporate Governance and Audit Committees of the board.  ... of dedicated service to GenVec, and its stockholders," said ...
(Date:10/19/2014)... Latin American hardware encryption display market report defines and ... forecast of revenue. This market was valued at $165.0 ... million by 2018, at a CAGR of 70.3% from ... the Latin American hardware encryption market report to get ... provides a glimpse of the segmentation of the market, ...
(Date:10/19/2014)... 19, 2014 The Asia-Pacific Speech Analytics ... in Asia-Pacific with analysis and forecast of revenue. This ... 2014 to $208 million by 2019, at a Compound ... 2019. , Browse through the TOC of the Asia-Pacific ... the in-depth analysis provided. It also provides a glimpse ...
Breaking Biology Technology:Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3Zola P. Horovitz To Retire From GenVec Board 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 2The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 3The Asia-Pacific Speech Analytics market is estimated to reach $208 million by 2019 - New Report by MicroMarket Monitor 4
Cached News: