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Female cannibalistic spiders find males distasteful
bbc ^ | Matt Walker

Posted on 02/22/2010 10:51:30 AM PST by JoeProBono

Female sexual cannibals do not find their male partners particularly tasty. Relative to their normal prey, male spiders are not very nutritious, and females only eat their mates if they are starving, researchers have found.

That suggests that, among spiders at least, hunger is not the main driving force that compels females to eat their partners after sex.

The finding by scientists at Miami University, US is published in the journal Oecologia. Cannibalism is a behaviour that has long intrigued biologists.

Males are a less nutritionally balanced food item for females than other prey Spider expert Dr Shawn Wilder Miami University, Ohio Yet it remains poorly understood. Several hypotheses have been put forward to explain it; for example, it helps reduce competition or it occurs as a result of mistaken identity.

However, the most studied idea is that a member of the same species is the perfect meal, as it contains all the nutrients an animal has in its own body, and therefore needs. Yet there is conflicting evidence about the benefits of becoming a cannibal. So Dr Shawn Wilder and Professor Ann Rypstra of Miami University in Hamilton, Ohio investigated just how nutritious a meal a male wolf spider is for a female.

This species (Hogna helluo) is abundant in agricultural areas of the mid-western US. The spiders, which live for up to two years, do not build webs, but lie in wait for their prey. After around one in three matings, a female wolf spider will eat the male.

(Excerpt) Read more at news.bbc.co.uk ...


TOPICS: Food; Pets/Animals; Science
KEYWORDS: jpb; napl; spider

Not-so-tasty partner


1 posted on 02/22/2010 10:51:30 AM PST by JoeProBono
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To: JoeProBono

—where would we be without researchers?


2 posted on 02/22/2010 10:54:30 AM PST by rellimpank (--don't believe anything the MSM tells you about firearms or explosives--NRA Benefactor)
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To: JoeProBono; Slings and Arrows
hunger is not the main driving force that compels females to eat their partners after sex

Maybe they are partial to one night stands...

3 posted on 02/22/2010 10:58:08 AM PST by a fool in paradise
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To: JoeProBono

.
But enough about The View.....


4 posted on 02/22/2010 10:58:10 AM PST by Touch Not the Cat
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To: JoeProBono

Just like many human wives! After they catch a mate they find him distasteful!


5 posted on 02/22/2010 10:58:44 AM PST by Kartographer (".. we mutually pledge to each other our lives, our fortunes, and our sacred honor.")
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To: JoeProBono

Last summer I killed what had to be the biggest black widow I’ve ever seen, it was huge. And there in the web was the dead male. It was ghastly!


6 posted on 02/22/2010 11:02:26 AM PST by valkyry1
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To: JoeProBono

Coming for dinner?


7 posted on 02/22/2010 11:03:07 AM PST by justapicker (I don't want the cheese, I just want out of the trap)
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To: JoeProBono
The only time when hunger may drive a female to eat her former partner is when a female spider is starving, says Dr Wilder.

Hence, the lesson to men is to take your wife to dinner before trying to mate with her.

8 posted on 02/22/2010 11:08:10 AM PST by MIchaelTArchangel (Is anyone in the 0bama administration competent at anything?!!?)
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To: JoeProBono

Wheres the picture of Rosie O’Donuts?


9 posted on 02/22/2010 11:21:56 AM PST by beckysueb (Scott Brown is a start. Lets keep it going.)
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To: JoeProBono
I think I like the old-style lab coats better.

(o_O)

10 posted on 02/22/2010 11:28:37 AM PST by Anti-Utopian ("Come, let's away to prison; We two alone will sing like birds I' th' cage." -King Lear [V,iii,6-8])
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To: JoeProBono

Real reason is male spiders do not pay child support or alimony. Therefore, of no use to the female.

parsy, the jaded


11 posted on 02/22/2010 11:43:35 AM PST by parsifal (Abatis: Rubbish in front of a fort, to prevent the rubbish outside from molesting the rubbish inside)
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To: parsifal
O RELY?


12 posted on 02/22/2010 11:47:43 AM PST by JoeProBono (A closed mouth gathers no feet)
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To: beckysueb
This is even worse:


13 posted on 02/22/2010 11:48:28 AM PST by library user
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To: library user

LMAO!!!! Oh my....


14 posted on 02/22/2010 11:50:45 AM PST by halo66
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To: library user

Too much on an empty stomach!


15 posted on 02/22/2010 2:43:56 PM PST by beckysueb (Scott Brown is a start. Lets keep it going.)
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To: a fool in paradise; MeekOneGOP; Conspiracy Guy; DocRock; King Prout; Darksheare; OSHA; ...
among spiders at least, hunger is not the main driving force that compels females to eat their partners after sex.

They haven't heard of child support.


16 posted on 02/22/2010 3:09:56 PM PST by Slings and Arrows ("Jim Robinson is the onle person that sweets proper nut sweet. leave the man alone."--Sarah-bot)
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To: JoeProBono

A warning would be nice.....

excuse me...... urp.......


17 posted on 02/22/2010 3:12:26 PM PST by metmom (Welfare was never meant to be a career choice.)
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To: Slings and Arrows

Moo.

Among spiders at least.

Among spiders at least?

Moo, bang, prenup. Hell,forgive me, I went to engineering college... what does it all mean?

Someone? Anyone? Buehler?


18 posted on 02/22/2010 3:33:20 PM PST by glock rocks (Wait, what?)
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To: JoeProBono
Mmmm.


19 posted on 02/22/2010 3:40:31 PM PST by paulycy (Demand Constitutionality.)
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To: JoeProBono
females only eat their mates if they are starving... That suggests that... hunger is not the main driving force that compels females to eat their partners after sex
...y'know, to morons. :'D WTF... Thanks JoeProBono.
20 posted on 02/22/2010 6:57:46 PM PST by SunkenCiv (Happy New Year! Freedom is Priceless.)
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To: Slings and Arrows

I like spiders.


21 posted on 02/23/2010 3:13:21 AM PST by TheOldLady (We'll remember in November.)
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To: TheOldLady

So do I, actually. And so do my cats. (But in an entirely different manner.)


22 posted on 02/23/2010 3:40:52 AM PST by Slings and Arrows ("Jim Robinson is the onle person that sweets proper nut sweet. leave the man alone."--Sarah-bot)
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To: Slings and Arrows

My cats are why I keep a spider-rescue glass for my catch-and-release program. Our new house has a very large basement, and the cats aren’t allowed (too many places to hide), so the spiders have a sanctuary for the winter.

The cats have to make do with our infestation of lady bugs.


23 posted on 02/23/2010 4:03:58 AM PST by TheOldLady (We'll remember in November.)
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To: SunkenCiv

Yeah, they aren’t making their point very well are they? I’m confoosed.


24 posted on 02/23/2010 8:21:42 AM PST by To Hell With Poverty (The War on Poverty is over. Poverty won. - Howie Carr)
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