80% kill rate??

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Guest_John_*

Guest
Hello!

I was watching on the National Geographic channel "Insects from heck" and it had a couple of bits about mantids. It said they have a 80% kill rate, what does that mean??

Thanks

-john-

 
My guess would be out of the total 10 time mantis going for a kill, 8 were successful, and the other 2 prey were lucky to escape.

 
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What Yen said makes the most sense. I figured it would be higher.

 
Rick, 80% success rate is astonomical for a predator. If you look at large ones, like big cats for example, their success rate is around 30% or 40% or lower.
I know but I rarely ever see mantids miss.

 
That percentage is a bit misleading. My adult female Chinese strikes at house flies with a success rate of 0%. But, when hungry, she scores a 100% success rate on adult crickets! So prey size has an effect on success rates. Likewise, hunger level has an effect as well. My female has caught crickets and then released them unharmed as she was not hungry. Does that count as a success or failure?

 
That percentage is a bit misleading. My adult female Chinese strikes at house flies with a success rate of 0%. But, when hungry, she scores a 100% success rate on adult crickets! So prey size has an effect on success rates. Likewise, hunger level has an effect as well. My female has caught crickets and then released them unharmed as she was not hungry. Does that count as a success or failure?
Actually, I'm sorry, I don't think it's because of hunger, because a mantid doesn't act lazy, but I do agree with size. Flies are just harder to catch, when flying, at least. I've noticed that every single one of my mantids have had a 100% success rate on food that walks around. (Crickets) My European female has trouble catching flies in the air, but has no trouble when it lands. My P. Ocellata, however, are adept at catching flying flies. None within range have ever escaped. Hunger may help in the sense that it would maybe strike more.

 
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I think hunger may have an affect, just a guess though. My mantids always seem more aggressive when their abdomens are flatter.

 
I mean that a hungry mantid is inclined to eat what it catches. A non-hungry mantid is likely to release what ever it catches. My Chinese female will grab a cricket that walks in front of it. Then, with out taking a bite, just drop it. This only happens when the mantid has eaten heavily. The best idea I have on this is that the mantid decided it was just too full to suck down one more bug!

 
Actually, I'm sorry, I don't think it's because of hunger, because a mantid doesn't act lazy, but I do agree with size. Flies are just harder to catch, when flying, at least. I've noticed that every single one of my mantids have had a 100% success rate on food that walks around. (Crickets) My European female has trouble catching flies in the air, but has no trouble when it lands. My P. Ocellata, however, are adept at catching flying flies. None within range have ever escaped. Hunger may help in the sense that it would maybe strike more.
Eh, I beg to differ. I have seen a few of my mantises when stuffed do half assed, lazy claw strikes at bugs when they know they don't have any need for catching it.I've also noticed a difference in my mantises hunting paterns depending on how much they have eaten. When they have been getting a lot of chow, my chinese have more of a tendancy to do the sit and wait for an insect to come directly up to them before striking. If they haven't eaten recently however they are far more intent on catching their prey and will often stalk and even chase their prey around the cage.

 
Eh, I beg to differ. I have seen a few of my mantises when stuffed do half assed, lazy claw strikes at bugs when they know they don't have any need for catching it.I've also noticed a difference in my mantises hunting paterns depending on how much they have eaten. When they have been getting a lot of chow, my chinese have more of a tendancy to do the sit and wait for an insect to come directly up to them before striking. If they haven't eaten recently however they are far more intent on catching their prey and will often stalk and even chase their prey around the cage.
Eh..... My males don't even bother to go strike at the prey, and my females, though bloated, strike, catch, and eat until they drop it partially eaten. Did not notice any slower strikes. I guess it depends on the mantis/attitude.(Like how some are really jumpy, while others seem tame.)

 
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Basically it means 80% of the time it kills its prey. There was a program on animal planet and they named the mantis the top predator for this reason as well as its camoflauge.

 
I can't recall where I read it (thus probably shouldn't post it) but, I was reading research done on strike efficacy and vision in the mantis. That study boasted an 85% successful strike rate, which is pretty astonishing. In the study they recorded failed strike rates in mantids with eye damage - not surprisingly success rate dimishes considerably with eye damage (the three single eyes). Anyway, 80 - 85% sounds right.

 
I can't recall where I read it (thus probably shouldn't post it) but, I was reading research done on strike efficacy and vision in the mantis. That study boasted an 85% successful strike rate, which is pretty astonishing. In the study they recorded failed strike rates in mantids with eye damage - not surprisingly success rate dimishes considerably with eye damage (the three single eyes). Anyway, 80 - 85% sounds right.
Yeah alot of it has to do with the mantids strike speed, which is roughly around 60 meters a second. Thats pretty tough to get away from.

 

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