Navigation Links
When food is scarce, hungry female spiders alter mating preferences
Date:4/1/2011

New research from the University of Cincinnati provides food for thought.

The research examined how short-term and long-term hunger affected mate selection and aggression in female wolf spiders (Schizocosa ocreata) commonly found in the eastern United States and Canada. These female spiders are potentially aggressive and cannibalistic when approached by a courting male.

The research is published in the April 2011 print issue of the journal, "Animal Behavior." It was carried out by George Uetz, UC professor of biology, and former UC doctoral student Brian Moskalik, now a postdoctoral teaching fellow at College of the Holy Cross, Worcester, Mass.

According to Uetz, this research helps indicate what might result if environmental changes affect food resources for animal populations, shedding light on the possible effects of scarce resources on short- and long-term mating preferences and potential long-term population dynamics.

He added, "For instance, we had a drought this past summer, and we saw smaller spiders in the fall. This spring, we're getting a lot of rain, which will likely mean more insects and an abundant food supply for spiders. That should mean well-fed spiders this year and, according to our research, that will affect spider mating choices."

SATIATED (WELL-FED) FEMALE SPIDERS

Hunger does affect female spiders' receptivity to mating, with well-fed females showing the most overall receptivity to mate and the least aggression. These satiated females were, however, quite choosy, and were most receptive to large-bodied males with large leg tufts (an indication of success in foraging for food). As they aged, they showed lower levels of aggression, and that aggression was directed toward small-bodied males with small leg tufts.

SHORT-TERM STARVATION

Overall, female spiders that experienced short-term starvation showed relatively little receptivity to mating and higher levels o
'/>"/>

Contact: M.B. Reilly
reillymb@ucmail.uc.edu
513-556-1824
University of Cincinnati
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Study finds that simple 2-question survey can better identify hungry children
2. First course of veggies may appeal to hungry preschoolers
3. Sugar-hungry yeast to boost biofuel production
4. New research indicates plants can grow quickly or ward off hungry insects, but not both
5. Honest crabs, power to the hungry, nice mice and clever meerkats: News from the American Naturalist
6. Larger female hyenas produce more offspring
7. Sexual plant reproduction: Male and female talk in the same way as do cells in your brain
8. Maternal fructose intake impacts female and male fetuses differently
9. Gender gap: Selection bias snubs scholarly achievements of female scientists
10. Offspring of female rats given folic acid supplements develop more breast cancer
11. Female lizard turns the table: Why exaggerated coloration makes her a good mate
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
When food is scarce, hungry female spiders alter mating preferences
(Date:6/17/2015)... , June 17, 2015  Crossmatch™, a ... announced that its U.are.U ® 4500 fingerprint ... Eateries, Inc., a San ... chain, to increase security, improve accountability and reduce ... enable instant, non-repudiable identity confirmation for employee sign ...
(Date:6/16/2015)... 16, 2015 Fingerprint Cards has received ... in the company,s portfolio from one of its module partners ... mainly take place during the third quarter 2015. The sensors ... . Jörgen Lantto, CEO of FPC, comments: ...   growing interest from smartphone OEMs in integrating touch fingerprint ...
(Date:6/15/2015)... -- A new report [ 1 ... US consumers using mobile banking applications want their mobile devices ... voiceprint, instead of having to prove who they are with ... Identity   -   The Fusion of Financial Services, Mobile ... primary channel used by Gen X and Gen Y to ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4
... Institute of Biological Sciences (AIBS) has selected Adam Roddy, ... Berkeley, and Anna Maria Stewart, a graduate student at ... of Environmental Science and Forestry, to receive the 2009 ... Since 2003, AIBS has recognized the achievements of biology ...
... wild ancestor more than 8700 years according to biological ... River Valley. This is the earliest dated evidence ... use of domesticated maize. The researchers, led by ... the Smithsonian National Museum of Natural History, reported their ...
... say is a relatively simple method, scientists at Georgetown ... and have converted them back into pluripotent embryonic-like stem ... potentially capable of morphing into any cell type that ... And because they produced these stem cells without ...
Cached Biology News:AIBS names 2009 emerging public policy leaders 2AIBS names 2009 emerging public policy leaders 3Researchers find the earliest evidence of domesticated maize 2Human adult testes cells can become embryonic-like 2
(Date:7/7/2015)... ... 07, 2015 , ... bioLytical Laboratories Inc. announced today that ... for presentation at the 8th Annual International AIDS Society (IAS) Conference on HIV ... 22nd from 1:00 pm to 2:00pm Pacific Standard Time at the poster discussion ...
(Date:7/7/2015)... Mich. , July 7, 2015  SME,s Advanced ... its third-annual "30 Under 30" issue, celebrating young men ... manufacturing. The July issue of ... manufacturing professionals and students for their accomplishments. Among the ... the U.S. Air Force on optimizing the topology of ...
(Date:7/7/2015)... ... July 07, 2015 , ... ... from $107.56 million in 2015, growing at a CAGR of 17.89% between 2015 ... RNA-based aptamers, and XNA-based aptamers. Based on applications, the report is segmented into ...
(Date:7/7/2015)... ... July 07, 2015 , ... Currently ... system was developed to solve many of the complex logistical and data ... that involve multiple clinical sites and/or remote data coordination centers. , CentrePoint ...
Breaking Biology Technology:bioLytical to Present Findings of Early HIV Detection 2bioLytical to Present Findings of Early HIV Detection 3SME's Advanced Manufacturing Media Recognizes "30 Under 30" Future Leaders of Manufacturing 2SME's Advanced Manufacturing Media Recognizes "30 Under 30" Future Leaders of Manufacturing 3SME's Advanced Manufacturing Media Recognizes "30 Under 30" Future Leaders of Manufacturing 4SME's Advanced Manufacturing Media Recognizes "30 Under 30" Future Leaders of Manufacturing 5Aptamers Market Growing at 17.89% CAGR to 2020 – New Research Available at RnRMarketResearch.com 2Aptamers Market Growing at 17.89% CAGR to 2020 – New Research Available at RnRMarketResearch.com 3Aptamers Market Growing at 17.89% CAGR to 2020 – New Research Available at RnRMarketResearch.com 4Aptamers Market Growing at 17.89% CAGR to 2020 – New Research Available at RnRMarketResearch.com 5ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 2ActiGraph Launches CentrePoint Cloud-based Study Management Software Platform 3
... Glioblastoma is one of the most aggressive forms ... tumor, glioblastoma will often infiltrate the surrounding brain tissue, ... chemotherapy or radiation. Likewise, several mouse models of glioblastoma ... a new study, a team led by scientists at ...
... 3, 2011 Brainlab announced today the launch of ... control center for information-guided surgery, is unveiling at the ... "Curve represents thousands of enhancements based on years ... always been a priority for Brainlab and has helped ...
... Lifeline Biotechnologies, Inc. (Pink Sheets: LLBO ) ... services. Jim Holmes, Lifeline,s CEO said "While our ... we have not been successful.  We now are considering alternatives ... of Lifeline is not reflected in the current lack of ...
Cached Biology Technology:Nanoparticles seek and destroy glioblastoma in mice 2Nanoparticles seek and destroy glioblastoma in mice 3Brainlab Launches Newest Innovation in Image Guided Surgery Technology 2Brainlab Launches Newest Innovation in Image Guided Surgery Technology 3Lifeline Biotechnologies and Depository Trust Company 2
Normal human serum collected off the clot from healthy normal humans. Each donor unit is negative for anti-HIV 1&2, HIV-Ag, HCV, and HBsAg by FDA required tests...
sterile filtered, off the clot, all male donors, Total Protein: 4.5 to 8.5 g/dl...
Recombinant Mouse MMP-9, CF...
Human/Mouse/Rat JNK Pan Specific Affinity Purified PAb...
Biology Products: