水平円網で獲物を狩るアシナガグモ幼体#1 Spiderling's Hunt On The Orb Web Pt. 1

卓上蛍光灯の直下に造網して夜な夜なライトトラップに励むアシナガグモ幼体（体長3mm）。アシナガグモ類の張る網は水平円網というが、これは垂直に近い斜め。網中心部で­辛抱強く待ち構え振動を感知するや素早く走り寄り、捕獲した獲物を定位置に持ち帰って食べる。狩りの成功率は意外に高くない。逃げられることも多い（一例を10%スローモ­ーションでリプレイ）。飛んで灯に入る夏の虫。（網の横から見た動画#2につづく）
A spiderling of the family Tetragnathidae stretch spider (Tetragnatha praedonia) had built a horizontal orb web under my desk light to catch small insects attracted toward the fluorescent light. It's fun to watch its hunting. Mid-July, 2007 in Japan.
Music : dr_gore2000 - Re-Acting
*part 1: http://youtube.com/watch?v=Kvt0q6-lYOw
part 2: http://youtube.com/watch?v=2BMLWL6lrNM
part 3: http://youtube.com/watch?v=l_jm5iRLUEs

Category:

Pets & Animals

Tags:

• stretch
• spider
• spiderling
• orb
• web
• hunt
• catch
• アシナガグモ
• アシナガグモ科
• 狩り
• 捕食
• クモ
• 蜘蛛

[gokuakuA2]

すげーや！！こんな風に動けたら、人気者だね！！

[sigma1920]

コメントありがとうございます。

こんな風に動けたら、スパイダーマンですね！

横から見た続編動画も公開しましたので併せてご覧下さい。

[michellekate]

Awesome, incredibly fast spider!!!

[sigma1920]

yeah, lightning speed of reflex.

it is amazing they can tell the direction (and distance?) of the trapped prey by vibration on the web.

i am gonna upload a series of videos of this spiderling to show some interesting (familiar) behaviors. plz stay tuned!

[superfisto]

Thanks for all your videos. I used to watch spiders as a kid--nand sometimes feed them. Now life is all serious and I can't enjoy nature the way I used to.

I know I made a comment on another of your videos about a fly which mimics a jumper. It's a behavioral mimic. I'm still looking for that video. Basically the fly walks around sideways on the leaf when confronted.

[sigma1920]

my pleasure.

plz tell me if u find the video of the side-stepping fly.

but i think jumping spiderz can walk freely (forward and backward as well)....

[sigma1920]

most of my video clips are about quite common critters.

real bug's life around us is quite wonder-full.

thx for watching!