Navigation Links
Sexual conflict affects females more than males, says new research on beetles
Date:4/27/2014

Researchers at the University of Exeter have found that sexual conflict over mating impacts the parental care behaviour and reproductive productivity of burying beetles.

These beetles have surprisingly complex parental care, similar in form to that provided by birds such as robins or blackbirds, with offspring begging to be fed by touching parents, who respond by regurgitating partially digested food.

Both males and females provide parental care, but females are the primary care givers, as in humans. So anything that affects the ability of females to provide parental care, such as costly mating, is likely to reduce overall reproductive productivity.

New work published today in the journal Ecology Letters, used artificial selection and mating crosses among selection lines to determine if and how mating behaviours co-evolve with parental care behaviours.

Classical parental care theory suggests that males are expected to provide less care when offspring in a brood are less likely to be their own. However, previous research indicates that this is not always the case, and one reason for this could be because costs associated with behaviours during mating impact behaviours during parental care.

The study tested this idea by artificially selecting burying beetles for either high or low mating rate (a paternity assurance trait) for 7 generations. Patterns of parental care and productivity of different combinations of male-female pairs from the same or different selection lines were then examined to see whether selection on mating behaviour led to a correlated, co-evolutionary response in parental care behaviour.

Male parental care behaviour did not change in response to selection on mating rate, but females responded to selection for high mating rates with a reduction in parental care. Productivity of pairs with females from lines selected for high mating rate was lower than that for pairs where fem
'/>"/>

Contact: Eleanor Gaskarth
e.f.gaskarth@exeter.ac.uk
44-782-730-9332
University of Exeter
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Study: Exercise can lead to female orgasm, sexual pleasure
2. Study shows unified process of evolution in bacteria and sexual eukaryotes
3. Sexual reproduction brings long-term benefits, study shows
4. UCLA biologists reveal potential fatal flaw in iconic sexual selection study
5. Size does matter in sexual selection, at least among beetles
6. Study finds epigenetics, not genetics, underlies homosexuality
7. Unlike we thought for 100 years: Molds are able to reproduce sexually
8. Survival of the prettiest: Sexual selection can be inferred from the fossil record
9. Discovery of sexual mating in Candida albicans could provide insights into infections
10. Study shows disease spread in ladybirds with sexually transmitted disease
11. Few pregnant women treated for sexually transmitted infections
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sexual conflict affects females more than males, says new research on beetles
(Date:4/14/2015)... YORK , April 14, 2015  HYPR ... IDentity Online (FIDO ® ) Alliance tm , ... specifications. FIDO members commit to share technology and ... methods that are interoperable, more secure and private, ... enable biometric identity verification that protects sensitive user ...
(Date:4/9/2015)... 9, 2015 Synaptics Inc. (NASDAQ: SYNA ), ... that it will report financial results for the third ... after the close of market. The company will host ... 2:00 p.m. PT (5:00 p.m. ET), during which management ... on the live call, analysts and investors should dial ...
(Date:4/2/2015)... GOTHENBURG, Sweden , April 2, 2015 ... revenues for Q1 2015 attributed to somewhat higher than ... company in the year-end report 2014 that revenues for ... MSEK that the company reported for Q4 2014. The ... continue to be negative. The complete interim report will ...
Breaking Biology News(10 mins):HYPR Corp. Joins the FIDO Alliance 2HYPR Corp. Joins the FIDO Alliance 3Synaptics to Report Third Quarter Results on April 23 2Fingerprint Cards Revises Revenues for Q1 2015 2
... controlled trial of fish oil given intravenously to patients ... exchange, reduces inflammatory chemicals and results in a shorter ... open access journal Critical Care investigated the ... solution for patients with sepsis, finding a significant series ...
... 1. Prescribed Opioids Associated with Significant Risk for ... oxycodone, have increased significantly over the past decade. As ... common, the deaths associated with opioids increase. Opioid overdose ... Researchers sought to determine the rate of opioid overdose ...
... MIT and Harvard Medical School have built targeted nanoparticles ... medicine, an advance that potentially provides an alternative to ... The particles, dubbed "nanoburrs" because they are coated with ... target proteins, can be designed to release their drug ...
Cached Biology News:Annals of Internal Medicine tip sheet for Jan. 19, 2010, issue 2Annals of Internal Medicine tip sheet for Jan. 19, 2010, issue 3New nanoparticles target cardiovascular disease 2
(Date:4/16/2015)... April 16, 2015 Cambridge ... solutions driven by Semantic Web technology, and ... information and services for the academic and scientific, ... its joint solution ‘Smart Data Lake for Clinical ... for the 2015 Bio-IT ‘Best of Show’ Award. ...
(Date:4/16/2015)... (PRWEB) April 16, 2015 Regis Technologies ... American Association for Cancer Research (AACR) annual meeting. Regis ... Convention Center, starting Saturday, April 18, in Philadelphia and ... claim to title of the oldest and largest organization ... fellowships and grants, and partners with survivors to promote ...
(Date:4/16/2015)... TORONTO , April 16, 2015 /PRNewswire/ - Portage ... PTGEF, Canadian Securities Exchange: PBT.U), is pleased to announce ... Investor Show on April 25, 2015 to be held ... Dr. Gregory Bailey and Mr. James ... overview and an update on the key programs at ...
(Date:4/16/2015)... , April 16, 2015  AnaptysBio, Inc., ... of therapeutic antibodies, today announced the advancement ... program into IND-enabling studies. The Company,s anti-IL-36R ... treatment for generalized pustular psoriasis (GPP), an ... medical need. ANB019 is wholly owned within AnaptysBio,s ...
Breaking Biology Technology:Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 2Cambridge Semantics and Informa Named Bio-IT Award Finalist for Smart Data Lake Solution for Clinical Trial and Competitive Intelligence 3Regis Technologies Joins American Association for Cancer Research Annual Meeting 2Portage to Present at Master Investor 2015 in London, UK 2Portage to Present at Master Investor 2015 in London, UK 3Portage to Present at Master Investor 2015 in London, UK 4AnaptysBio Advances First-In-Class Anti-IL-36 Receptor Antibody Program To Treat Orphan Inflammatory Disease 2
... a long-planned departure from its traditional focus, high-end computer ... U.S. Army for development of two different products. , ... it has secured $2.2 million in federal contracts for ... the Armys Research, Development and Engineering Command (CERDEC) to ...
... Inc. for the quarter ended March 31 rose to $142.5 ... company earned the same quarter of 2004. , ,Profit for ... even $150 million, compared to $78.3 million a year ago. ... more than $10 per share Tuesday and Wednesday from Monday's ...
... Milwaukee Merge eFilm , the Milwaukee-based ... Inc., continued to build momentum leading into its proposed ... net sales of just more than $10.5 million in ... first quarter 2004, after a 19 percent year-over-year jump ...
Cached Biology Technology:SLE of Eau Claire lands $2.2 million in federal contracts 2SLE of Eau Claire lands $2.2 million in federal contracts 3Merge eFilm earnings jump precedes planned merger 2Merge eFilm earnings jump precedes planned merger 3
HOXC11 Antibody...
Anti-NeuroD 6 Immunogen: Synthetic peptide. Available Date: 36708...
pH-insensitive fluorescence (pH 2-12)...
Anti-MMP-14, catalytic domain, clone LEM-2/15.8 Immunogen: Synthetic peptide: amino acid sequence 218-233 within the catalytic domain Available Date: 38579...
Biology Products: