Navigation Links
Reversal of the black widow myth
Date:5/6/2013

neration tended to be bigger than males from the spring generation and they were more cannibalistic. This would suggest that male aggression may be related to male size.

The authors noted that the highest frequency of reverse cannibalism occurred when these larger, young males from the summer generation met old females from the previous spring generation. This suggests they may have based their choice on female age. Female body size, even though considered to be a sign of quality, did not affect rates of cannibalism. The authors also noted no difference in male cannibalization of females who had previously mated or virgin females. This evidence demonstrates that in some species and some cases, the males make a very clear choice about who they will mate with.

The authors remark: "Our study provides an insight into an unusual mating system, which differs significantly from the general model. Even males may choose their potential partners and apparently, in some cases, they can present their choice as extremely as females do by cannibalizing unpreferred mates."


'/>"/>

Contact: Sophia Grein
sophia.grein@springer.com
49-622-148-78414
Springer
Source:Eurekalert

Page: 1 2

Related biology news :

1. Black carbon flowing from soil to oceans
2. Autism in black and white: NIH grant helps scientist study disorder in African Americans
3. Astronomer gets grant to better measure mysterious black holes
4. Black silicon can take efficiency of solar cells to new levels
5. Clamorous city blackbirds
6. Biologists unlock black box to underground world
7. Strength training improves vascular function in young black men
8. Black piranha, megapiranha have most powerful bites of fish living or extinct, finds GW researcher
9. The dark side of kerosene lamps: High black-carbon emissions
10. Study IDs kerosene lamps as big source of black carbon
11. Le Rouge et le Noir: Where the black dahlia gets its color
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/30/2014)... UT Arlington bioengineering professor has received a $1.04 ... to regenerate cartilage tissue and reduce osteoarthritis using ... injection of microscaffolding made of biodegradable polymers., Liping ... the bioengineering department, said the research is primarily ... on the battlefield., "We,ve found that if we ...
(Date:10/30/2014)... Philadelphia, PA, October 30, 2014 – Bacteria in ... are critical for digestion. Yet, these same bacteria ... system if they penetrate the gut and enter ... natural response to protect the body, chronic or ... diseases. Prior research has established the involvement of ...
(Date:10/29/2014)... by unconventional oil and gas production are well over ... the open access journal Environmental Health . High ... The study is the first to be based on ... and could be used to supplement official air-quality monitoring ... that do not readily flow to the surface. This ...
Breaking Biology News(10 mins):UTA researcher uses microscaffolding injections to mend cartilage, prevent osteoarthritis 2Breakdown in gut barriers to bacteria may promote inflammation and craving in alcoholics 2Air quality and unconventional oil and gas sites 2Air quality and unconventional oil and gas sites 3
... Chicago, IllinoisJune 22, 2010"Seasick: Ocean Change and the ... in the US by the University of Chicago Press, ... in Environmental Reporting. Awarded by the Metcalf Institute for ... of the environment and recognizes reporting that has the ...
... puzzled over why a baby,s brain is particularly flexible ... have to learn a lot? A group of researchers ... Institute for Dynamics and Self-Organization in Gttingen, the Schiller ... put forward a new explanation: Maybe it is because ...
... (June 20, 2010) By emulating nature,s design principles, ... Engineering, Harvard Medical School and Dana-Farber Cancer Institute has ... be programmed to move and change shape on demand. ... highly suitable for medical applications because DNA is both ...
Cached Biology News:Growing brain is particularly flexible 2Researchers create self-assembling nanodevices that move and change shape on demand 2
(Date:10/30/2014)... 30, 2014 Whitehouse Laboratories has formally ... Stability Testing and Package Test Capacity. Responding to growing ... a dramatic increase in environmental chamber storage space that ... and aging samples to be securely held on site ... capital expenditure has already taken place with the recent ...
(Date:10/30/2014)... , Oct. 30, 2014 Isis Pharmaceuticals, Inc. ... today announced that management will present a company overview at ... 8:30 a.m. ET in Boston, MA. ... available on the "Investors & Media" section of the Company,s ... the Isis website within 48 hours and will be archived ...
(Date:10/30/2014)... of the key challenges in the development of quantum ... , In a paper published today (28 October) in ... show how to make a new type of flexibly ... such as high-precision sensors and specialised superfast computers, often ... the methods for trapping these tiny particles are hugely ...
(Date:10/27/2014)... The new research report, “Gas ... Medium), Sub-type (Primary & Secondary), and End-User (Transmission ... & Power Generation) - Trends and Forecasts to ... analysis and forecasting of the market size. , ... 52 Figures spread through 146 Pages and in-depth ...
Breaking Biology Technology:Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4
... AMSTERDAM, October 13 Amsterdam Molecular,Therapeutics ... gene therapy,announced today that the European Medicines Agency has ... for the treatment of,Duchenne muscular dystrophy. , ... (DMD) entitles,AMT to ten year market exclusivity in Europe ...
... HAIKOU CITY, China, Oct. 12 ... CPHI ), which develops,manufactures, and markets specialty pharmaceutical ... the Roth China Conference, to be held,October 12-14, 2009, ... participate in one-on-one meetings with conference attendees throughout,the three-day ...
... 12 Dr. Michael Merzenich , PhD ... brain plasticity expert and tech entrepreneur - was ... Washington, D.C. Also a member of the National Academy of ... scientists and doctors in the U.S. who have been selected ...
Cached Biology Technology:AMT Receives EMEA Orphan Drug Designation for Duchenne Muscular Dystrophy 2AMT Receives EMEA Orphan Drug Designation for Duchenne Muscular Dystrophy 3Dr. Michael Merzenich Joins Venerable Short List Honored for Cutting-Edge Neuroscientific Research 2Dr. Michael Merzenich Joins Venerable Short List Honored for Cutting-Edge Neuroscientific Research 3
... Cell Lines ,High Quality, Functionally-Validated, Ion Channel ... known for having a critical role in ... a key function in pain, CNS and ... have been investigated in therapeutic areas, such ...
Mouse polyclonal antibody raised against a partial recombinant CD320. NCBI Entrez Gene ID = 51293...
Mouse monoclonal antibody raised against a partial recombinant CHD8. NCBI Entrez Gene ID = CHD8...
Mouse monoclonal antibody raised against a partial recombinant DENR. NCBI Entrez Gene ID = DENR...
Biology Products: