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Kai - Bug Questions!

Started by Mangrove, July 11, 2012, 08:54:53 PM

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Mangrove

This is something really stupid, but I had to ask.

So, outside one of our bedroom windows, some funnel web spiders have taken residence. Every now and then, I like to watch what they're up too. Often, nothing much but recently, I got to see something I've never seen up close before. Some flying beastie (that looked all the world like a very small wasp(?) got himself caught in the web.

Now, he was doing all his best to get the hell out because the resident spider was nearby. The spider ran out and actually circled his prey numerous times. Then it'd run back and then run out again, do a few victory laps and then return to his corner. There was a really dramatic scene whereby the spider stood over the wasp and had one leg poised very high above like he was about to  bitch slap his would-be meal from a great height.

Later on, when I revisited the scene, the wasp was dead and all of it's waspy goodness had been sucked out.

This got me thinking. Spiders have been making sticky webs for a gazillion years. Other creatures have been sticking to said webs for gazillions of years. Has our trusty friend, evolved insects that either are:

a) impervious to spider stickiness, in which case they can walk off? After all, spiders can, so it makes sense that some other creature could.

b) developed some other anti-spider web measure(s)?

I would have thought "not getting stuck in a web and dying" would qualify as suitable 'environmental pressure' to cheat the spiders out of a meal.

Many thanks,

Mang'
What makes it so? Making it so is what makes it so.

The Good Reverend Roger

Remember:  Evolution doesn't produce the best solution, just one that works.  If a particular brand of wasp, etc, can live long enough to breed, it has succeeded.

Then consider the sheer number of prey species that a spider eats, compared to the number of spiders.  Not enough gun, I'm thinking, to force any changes.
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Nephew Twiddleton

Wasps also seem to have queens. The wasp you saw might not have any reproductive purpose. Though other species behave differently.
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Golden Applesauce

#3
Moths and butterflies' wing scales detach, letting them bounce off webs.
http://www.asknature.org/strategy/12de56f529b1c7c6bc7b818eabec31ed

I'm pretty sure there are some ants who know how to only walk on the non sticky parts of webs, and there are some insects who can cut their way free. I think there's at least one species of insect that flies into webs intentionally, then breaks free and eats the spider.

Edit: after a little more research, it turns out that most insects have some anti-web ability. Good eyesight & maneuverability to avoid or fly through webs, being strong enough to break free, playing dead, or just being poisonous. Webs are designed to fail gracefully in the event that a strong bug tries to break free - its better for one meal to get away than for the entire web to be torn apart. Spiders will even go out of their way to cut free poisonous or dangerous insects out of the web.
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The Good Reverend Roger

Quote from: Golden Applesauce on July 11, 2012, 11:44:37 PM
I think there's at least one species of insect that flies into webs intentionally, then breaks free and eats the spider.


Jesus H Christ.   :eek:
" It's just that Depeche Mode were a bunch of optimistic loveburgers."
- TGRR, shaming himself forever, 7/8/2017

"Billy, when I say that ethics is our number one priority and safety is also our number one priority, you should take that to mean exactly what I said. Also quality. That's our number one priority as well. Don't look at me that way, you're in the corporate world now and this is how it works."
- TGRR, raising the bar at work.

Nephew Twiddleton

Quote from: The Dead Reverend Roger on July 12, 2012, 01:11:05 AM
Quote from: Golden Applesauce on July 11, 2012, 11:44:37 PM
I think there's at least one species of insect that flies into webs intentionally, then breaks free and eats the spider.


Jesus H Christ.   :eek:

God's not just keeping his fingers in the physics pie. Looks like he's crazying up biology too.
Strange and Terrible Organ Laminator of Yesterday's Heavy Scene
Sentence or sentence fragment pending

Soy El Vaquero Peludo de Oro

TIM AM I, PRIMARY OF THE EXTRA-ATMOSPHERIC SIMIANS

Luna

Quote from: The Dead Reverend Roger on July 12, 2012, 01:11:05 AM
Quote from: Golden Applesauce on July 11, 2012, 11:44:37 PM
I think there's at least one species of insect that flies into webs intentionally, then breaks free and eats the spider.


Jesus H Christ.   :eek:

This appeals to my sense of irony.
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I like the Luna one. She is a good one.

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LMNO

It almost make you want to add new chapters to the Spider Project, doesn't it?

The Good Reverend Roger

Quote from: LMNO, PhD (life continues) on July 12, 2012, 12:58:35 PM
It almost make you want to add new chapters to the Spider Project, doesn't it?

*twitch*

Damn you!
" It's just that Depeche Mode were a bunch of optimistic loveburgers."
- TGRR, shaming himself forever, 7/8/2017

"Billy, when I say that ethics is our number one priority and safety is also our number one priority, you should take that to mean exactly what I said. Also quality. That's our number one priority as well. Don't look at me that way, you're in the corporate world now and this is how it works."
- TGRR, raising the bar at work.

LMNO


Mangrove

Quote from: The Dead Reverend Roger on July 11, 2012, 08:58:55 PM
Remember:  Evolution doesn't produce the best solution, just one that works.  If a particular brand of wasp, etc, can live long enough to breed, it has succeeded.

Then consider the sheer number of prey species that a spider eats, compared to the number of spiders.  Not enough gun, I'm thinking, to force any changes.

Reproduction = Success.
True for wasps, not for people  :lol:
What makes it so? Making it so is what makes it so.

Mangrove

Quote from: The Dead Reverend Roger on July 12, 2012, 01:11:05 AM
Quote from: Golden Applesauce on July 11, 2012, 11:44:37 PM
I think there's at least one species of insect that flies into webs intentionally, then breaks free and eats the spider.


Jesus H Christ.   :eek:

Seconded!
What makes it so? Making it so is what makes it so.