Navigation Links
Study: Crickets 'forewarn' unborn babies about spiders

Just because cricket moms abandon their eggs before they hatch doesn't mean they don't pass wisdom along to their babies. New research in the American Naturalist shows that crickets can warn their unborn babies about potential predator threats.

Researchers Jonathan Storm of the University of South Carolina Upstate in Spartanburg and Steven Lima of Indiana State University placed pregnant crickets into enclosures containing a wolf spider. The spiders' fangs were covered with wax so the spiders could stalk the crickets, but couldn't kill them. After the crickets laid their eggs, Storm and Lima then compared the behavior of those offspring to offspring whose mothers hadn't been exposed to spiders. The differences were dramatic.

When placed into a terrarium with a hungry wolf spider, the crickets born of spider-exposed mothers were more likely to seek shelter and stay there. They stayed hidden 113 percent longerand as a result had higher survival ratesthan offspring from mothers that hadn't been exposed to spiders. Another experiment showed that the "forewarned" crickets were more likely to freeze when they encountered spider silk or fecesa behavior that could prevent them from being detected by a nearby spider.

The results suggest that "the transfer of information from mother to offspring about predation risk, in the absence of any parental care, may be more common than one might think," Storm said.

And it appears that this effect isn't limited to lab-reared crickets. Storm and Lima collected pregnant crickets from the wildsome from habitats where wolf spiders are common, others from places where spiders are scarce. Babies from mothers caught in spider-rich habitats tended to be more cautious around spider cues, much like the lab-reared crickets.

It's not clear from this study exactly how cricket mothers influence the behavior of their offspring. It's possible, the researchers say, that stressful events like predator attacks trigger the release of a hormone that influences the development of the embryo.


Contact: Kevin Stacey
University of Chicago Press Journals

Related biology news :

1. New UC Davis study: Climate tipping points may arrive without warning, says top forecaster
2. New study: Human running speeds of 35 to 40 mph may be biologically possible
3. Study: Sea stars bulk up to beat the heat
4. UF study: Exercise improves body image for fit and unfit alike
5. UNC study: Color-coded chart improves parents understanding of body mass index
6. Study: Popular supplement quercetin does not enhance athletic performance
7. Study: Oil speculators dominate open interest in oil futures
8. Study: Smoking may worsen malnutrition in developing nations
9. Study: Young Arctic muskoxen better at keeping warm than scientists thought
10. Study: Illegal fishing harming present and future New England groundfish fisheries
11. Yale study: Most polluted ecosystems recoverable
Post Your Comments:
(Date:10/27/2015)... 27, 2015 In the present market scenario, ... for various industry verticals such as banking, healthcare, defense, ... growing demand for secure & simplified access control and ... as hacking of bank accounts, misuse of users, , ... as PC,s, laptops, and smartphones are expected to provide ...
(Date:10/27/2015)... SAN JOSE, Calif. , Oct. 27, 2015 /PRNewswire/ ... human interface solutions, today announced that Google has adopted ... family of touch controller solutions to power its newest ... Nexus 6P by Huawei. --> ... ecosystem partners like Google to provide strategic collaboration in ...
(Date:10/26/2015)... PALO ALTO, Calif. and LAS ... – Nok Nok Labs , an innovator in ... FIDO Alliance , today announced the launch of its ... the first unified platform enabling organizations to use standards-based ... authentication. The Nok Nok S3 Authentication Suite is ideal ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... and HOLLISTON, Mass. , Nov. 25, ... HART ), a biotechnology company developing bioengineered organ ... Jim McGorry will present at the LD Micro ... at 2:30 p.m. PT. The presentation will be webcast ... days. Management will also be available at the conference ...
(Date:11/25/2015)... /PRNewswire/ - Aeterna Zentaris Inc. (NASDAQ:  AEZS; TSX: AEZ) ... remain fundamentally strong and highlights the following developments: ... DSMB recommendation to continue the ZoptEC Phase 3 ... final interim efficacy and safety data , ... with heavily pretreated castration- and Taxane-resistant prostate cancer ...
(Date:11/25/2015)... Nov. 25, 2015 Orexigen® Therapeutics, Inc. (Nasdaq: ... in a fireside chat discussion at the Piper Jaffray ... . The discussion is scheduled for Wednesday, December ... .  A replay will be available for 14 ... , Julie NormartVP, Corporate Communications and Business Development ...
(Date:11/25/2015)... ... November 25, 2015 , ... Jessica Richman ... AngelList early in their initial angel funding process. Now, they are paying it ... to make early stage investments in the microbiome space. In this, they ...
Breaking Biology Technology: