Navigation Links
Why sticking around is sometimes the better choice
Date:3/27/2013

Researchers from Lund University, Yale University and the University of Oxford have been able to give an answer to why cuckolded males in many species still provide paternal care. When the conditions are right, this strategy is actually the most successful.

In many species males put a lot of effort into caring for offspring that are not their own. At first glance this makes no sense at all because natural selection should design males to only care for offspring that carry their genes. However, males are much more astute than we might think and maximise their care according to how likely it is that females are unfaithful whilst judging whether caring will reduce the number of offspring they can have in the future.

"These are complex calculations that males are making and it has been difficult to measure things correctly, but looking across species has helped us work out what is going on", says Charlie Cornwallis, researcher at the Department of Biology, Lund University, Sweden.

The researchers conducted a meta-analysis of 62 studies across 48 different species including insects, fish, birds and mammals. Although parental care is highly variable across these species, the researchers were able to explain why sticking around to care is the better choice for some males that have been usurped: Males tend to be more accepting of offspring fathered by other males in species where the risk of cuckoldry is generally low or caring does not harm their reproductive success.

"This to me shows the strength of natural selection, with its footprints clear in species as different as burying beetles, which care for young over a few weeks by regurgitating dead mice, to humans that spend years providing for their children", Cornwallis says.

The study opens up an interesting path to more research in the area. Now that the researchers know what factors are important they can design studies to further test their findings and predict what
'/>"/>

Contact: Charlie Cornwallis
Charlie.Cornwallis@biol.lu.se
46-462-221-783
Lund University
Source:Eurekalert

Page: 1 2

Related biology news :

1. New public gut bacteria study expected to reach around world
2. Are brown widows displacing black widow spiders around southern California homes?
3. New data suggests interferon-free therapy around the corner for HCV patients
4. New paper examines poison resistance in snakes around the world
5. Bird louse study shows how evolution sometimes repeats itself
6. Appetite genes are key to better diets for poultry, study shows
7. Astronomer gets grant to better measure mysterious black holes
8. Asterixs Roman foes -- Researchers have a better idea of how cancer cells move and grow
9. Better estrogen-testing methods needed to improve patient care
10. Omega-3s from fish vs. fish oil pills better at maintaining blood pressure in mouse model
11. Fat worms inch scientists toward better biofuel production
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/1/2014)... elements are a key component of phloem, the conductive ... range of signalling molecules. Elongated cylindrical cells are capped ... end-to-end to form sieve tubes which in turn form ... "Sieve elements are very special cells which play an ... little has been known about their differentiation," says Professor ...
(Date:8/1/2014)... Fla. , Aug. 1, 2014  LiveScan Service Provider Binary Biometrics ... owner/operator team. As a result, Binary Biometrics will improve its mobile service capabilities ... Volusia County and service several new cities such as, ... , DeLand , Deltona , ... Helen , New Smyrna Beach , Oak ...
(Date:7/31/2014)... supported by the National Science Foundation (NSF), counters ... accelerates atmospheric warming, indicating instead that certain Arctic ... into the atmosphere. , The study, published ... focuses on thermokarst lakes, which occur as permafrost ... melted fresh water, converting what was previously frozen ...
Breaking Biology News(10 mins):Developmental regulation of important plant phloem components discovered 2Binary Biometrics, Founded by James Timothy White, Expands Services to 13+ Locations With the Addition of Owner/Operator Kevin Morris 2Binary Biometrics, Founded by James Timothy White, Expands Services to 13+ Locations With the Addition of Owner/Operator Kevin Morris 3Certain Arctic lakes store more greenhouse gases than they release 2
... On the first anniversary of the American Recovery and ... nation,s research universities today provided nearly 100 examples of ... paying outsize short- and long-term dividends for the nation. ... $21.5 billion is allocated for research and science infrastructure. ...
... Medical Inc. has obtained a non-exclusive license to ... property developed at Case Western Reserve University,s Department ... (FES) Center in Cleveland. ... manufacturer based in Indiana, Pa., rights to intramuscular ...
... multitude of questions, but sometimes traditional techniques are superior. ... cost, when they relied upon statistical data to monitor ... an indigenous group of people living in the James ... Montreal), have lived in harmony with their environment. They ...
Cached Biology News:Universities highlight benefits of stimulus research funding 2Universities highlight benefits of stimulus research funding 3Listen to the natives for better moose monitoring 2
(Date:7/31/2014)... people over 60 are not donor candidates for bone ... time, making the elderly prone to life-threatening infection and ... now has discovered a reason why. , "We have ... blood-forming cells to maintain blood production over time in ... could be restored for rejuvenation therapies," said Emmanuelle Passegu, ...
(Date:7/31/2014)... Ind. -- Chemists at Indiana University Bloomington have ... bricks-and-mortar fashion, a development with potential value for ... field-effect transistors and photovoltaic cells. , Their paper, ... Crystalline Solids and 2D Self-Assembled Crystals," has been ... journal of the Royal Society of Chemistry. It ...
(Date:7/31/2014)... Graphite Metallizing Corporation announces GRAPHALLOY® ... These bearings are uniquely suited to prevent loss of ... of the high temperatures . , Recently, a ... design engineers at Graphite Metallizing to overcome problems with ... manufacturing operation, pans containing blocks of powder mixture are ...
(Date:7/31/2014)... Francisco, California (PRWEB) July 31, 2014 ... systems that inform therapeutic decision-making in oncology, today announced ... August 14, 2014 to discuss the Company's financial results ... provide an update about the business in the current ... audio call beginning on Thursday, August 14, 2014, at ...
Breaking Biology Technology:Key to aging immune system is discovered 2Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 2Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 3Graphite Metallizing Announces Bearings for High Temperature Oven Applications 2Graphite Metallizing Announces Bearings for High Temperature Oven Applications 3CollabRx, Inc. Schedules First Quarter Fiscal Year 2015 Financial Conference Call and Business Update 2
... N.C., June 9, 2011 The David H. Murdock ... Immune Tolerance Institute, Inc. (ITI) as a next step ... the North Carolina Research Campus in Kannapolis, NC. Driven ... of breakthrough treatments for the range of immune-related diseases, ...
... all advanced a few steps closer to their future ... the week of May 9-13, 2011. That,s when ... three of the four robotics competitions at the IEEE ... China. The trio of contests are designed to prove ...
... 2011 Ronald W. Davis, PhD, a pioneer in innovative ... and genomic methods to biological organisms, will receive the 2011 ... Davis, 69, has spent most of his professional ... biochemistry and genetics. He also serves as director of the ...
Cached Biology Technology:David H. Murdock Research Institute Assumes Control of the Immune Tolerance Institute and Establishes a State of the Art Human Immune Monitoring Laboratory for Biomarker Discovery and Development 2David H. Murdock Research Institute Assumes Control of the Immune Tolerance Institute and Establishes a State of the Art Human Immune Monitoring Laboratory for Biomarker Discovery and Development 3NIST contests in China put next-gen robot technologies to the test 2NIST contests in China put next-gen robot technologies to the test 3Biochemist and Geneticist Ronald W. Davis Receives $500,000 Gruber Genetics Prize for Pioneering Work in the Development of Biotechnologies that Have Significantly Advanced the Fields of Molecular Genetics and Genomics 2Biochemist and Geneticist Ronald W. Davis Receives $500,000 Gruber Genetics Prize for Pioneering Work in the Development of Biotechnologies that Have Significantly Advanced the Fields of Molecular Genetics and Genomics 3
GlutaMAX-I Supplement...
Chemically Defined Lipid Concentrate...
... membrane-filtered isotonic and enzyme-free aqueous formulations ... agents in either Ca2+- and Mg2+-free ... Ca2+- and Mg2+-free phosphate-buffered saline for ... support substrates and each other for ...
... , 25 g Blocking Reagent , 2 x ... T7 Elution Buffer , 0.2 ml BL21 glycerol stock ... ml BLT5615 glycerol stock , 1010 pfu T7Select Positive ... , 50 l S-protein HRP Conjugate , 2 ...
Biology Products: