HOME >> BIOLOGY >> NEWS
Conflict over rearing young shapes breeding systems

An article in the October 2006 issue of BioScience, the monthly journal of the American Institute of Biological Sciences (AIBS), describes evidence that conflict between male and female shorebirds over which member of a breeding pair will raise their young has had a profound influence on the evolution of breeding systems in these birds. The article, by Tams Szlely, Gavin H. Thomas, and Innes C. Cuthill, likens the conflict to a tug-of-war played out over evolutionary time.

Shorebirds have varied breeding systems. Females care for the young in some species, males do in others, and in many, the chore is shared. In the Kentish plover, which the authors studied in detail, either the male or the female in a pair may desert, leaving the other partner with the task of raising the young alone.

The authors, at the University of Bath, Imperial College, London, and the University of Bristol, all in the United Kingdom, used a combination of experiments and mathematical modeling to analyze the decisions that Kentish plovers make while raising their chicks. Modeling suggested a rationale for the finding that females are more likely to desert if there are local unpaired males: that tendency emerged as a strategy likely to persist in evolution. Further analyses used molecular and other data to examine the evolution of breeding systems in a variety of shorebirds. These studies suggested that in species with chicks that need a lot of parental care, cooperative rearing is more likely to persist. In species with young that become independent early, either males or females are likely to desert their partners.


'"/>

Contact: Donna Royston
droyston@aibs.org
202-628-1500
American Institute of Biological Sciences
2-Oct-2006


Page: 1

Related biology news :

1. US clinical researchers resist full financial disclosure, according to Conflicts-of-Interest Study
2. It takes a village -- female ducks negotiate joint rearing of ducklings
3. Universes stringy birth revealed by young Czech scientist in EURYI winning project
4. 2007 EURYI: 20 young researchers to receive Nobel Prize-sized awards for breakthrough ideas
5. High rates of HIV infection documented among young Nepalese girls sex-trafficked to India
6. Throwing motion in young baseball players may actually protect shoulder
7. Eavesdropping comes naturally to young song sparrows
8. Cannibalism of the young allows individual fish to specialize
9. Study to probe how healthy younger adults make use of genetic tests
10. Cat hair at home poses an allergy risk, particularly for young children
11. In young mice, gregariousness seems to reside in the genes

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Conflict over rearing young shapes breeding systems

(Date:7/21/2014)... A University of California, San Diego School of Medicine-led ... not recognize the potentially serious health consequences of childhood ... in helping their child reach a healthy weight. , ... of the Academy of Nutrition and Dietetics . , ... and physical activity behaviors," said lead author Kyung Rhee, ...
(Date:7/21/2014)... cheating in science are among the topics to ... experts in Montreal at the three International Union ... to August 1, 2014. Some 2,000 participants from ... 14th International Congress of Bacteriology and Applied Microbiology, ... Microbiology, and the 16th International Congress of Virology. ...
(Date:7/21/2014)... 154 hotspots in areas across Riau province on Sunday, ... again following a decline in rainfall. The number ... than what had been reported one day prior, which ... scattered in six regencies and municipalities, most of which ... related haze it creates could potentially spread via winds ...
Breaking Biology News(10 mins):Parents rank their obese children as 'very healthy' 2Montreal hosts International Union of Microbiology Societies congresses 2
(Date:7/22/2014)... CTD Holdings, Inc. (OTCQB:CTDH), a manufacturer ... cosmetics, and other markets, announced today that it has ... qualified private investors led by Novit L.P., an investment ... transaction involved the signing of a Securities Purchase Agreement ... Stock at a price per share of $1.00, resulting ...
(Date:7/22/2014)... 22, 2014 Automated cell culture systems ... of cell culture. They allow production of optimum cells ... researchers in drug discovery and industries and biopharmaceutical companies. ... production, iPSC research, cryobanking, cell-based assays, and cellular expression ... , Analysts forecast the Global Cell Culture market ...
(Date:7/22/2014)... Wisconsin (PRWEB) July 22, 2014 ... in attendance at the 2014 NCSL International Workshop ... Booth #423 will feature CONDEC pressure instrumentation, OIML ... weights, and the new, customized sets, Essential Weights™. ... to promote cooperative efforts in solving the common ...
(Date:7/22/2014)... (PRWEB) July 22, 2014 The ... clear and concise visual representation of history, migration, and ... was always regaled by family history stories stemming from ... as the "old country." Pictures and 8mm home movies ... side of the family, and Steve ordered a test ...
Breaking Biology Technology:CTD Holdings Closes $1.725 Million Private Placement 2CTD Holdings Closes $1.725 Million Private Placement 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 4Rice Lake Weighing Systems Showcases Metrology Solutions for the 2014 NCSL International Workshop & Symposium 2DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 2DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 3DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 4
Cached News: