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Organized colony

Community and Forum → Insects biology and faunistics → Organized colony

Гретта, 14.12.2008 8:18

Hello! Can you tell me who it could be? They say that some insects under certain conditions unite in such a string. Why and how does this happen, and how is the movement modulated?
Link to the page, middle and right movies at the bottom.
http://www.sciara.most.org.pl/

This post was edited by Gretta - 12/14/2008 17: 05

Comments

20.12.2008 15:18, Chromocenter

caterpillars, but stretched out in a chain, I also once saw. it seems that they migrate to the place of pupation, and the movement is regulated by all caterpillars at once, like-each releases pheromones that are captured by neighbors, and which in response also emit

25.12.2008 21:22, Гретта

As I understand it, this is quite a rare phenomenon, they don't always migrate like this, do they?
What is needed to make it work?
(There is a person who saw such a string of cockroaches cross the highway (!), and also met reports of the same organization in snakes, rats, squirrels and many insects).

26.12.2008 1:25, Мих

ladybirds spend the winter in herds.. dragonflies migrate in huge flocks( I didn't see it myself, a friend told me how a herd of dragonflies flew..)

26.12.2008 12:13, omar

The caterpillars crawl one after the other, holding on to the spider web. What pheromones? The caterpillars?! This phenomenon is inherent only in some species of butterflies.

08.01.2009 17:32, Swansson

The caterpillars crawl one after the other, holding on to the spider web. What pheromones? The caterpillars?! This phenomenon is inherent only in some species of butterflies.


More than once I saw a column of caterpillars several individuals wide. One after another, they may be behind cobwebs, but how are they equal in width? I also saw how such a column splits into smaller ones and they are already moving independently, in parallel, and maybe somewhere they are connected again.

17.01.2009 1:44, Romik

This is how the Automeris io caterpillars crawl in search of food smile.gif
I didn't notice any cobwebs at the same time. The caterpillar "following" the first one with its head is always in close contact with the back of the previous smile.gifone, and so on along the entire chain. If suddenly the "commander" has a hitch, then behind him they begin to push his head hard smile.gif

Pictures:
_________2.jpg
_________2.jpg — (118.27 k)

Likes: 6

18.01.2009 19:46, Бабочник

Cool!

19.01.2009 18:42, Гретта

The picture is cool.
But I still wanted to know if anyone has studied this form of organization, how well the phenomenon has been studied, and whether there are any works.

21.01.2009 23:36, Мих

Read Fabre. He has this in the chapter about the caterpillars of the pine silkworm.. he didn't see any cobwebs either, but he did do an experiment.. forced the main track to go to the rear of the column.. then he brushed away the side cobwebs.. Poor caterpillars ran in circles for 3 days)
Likes: 1

27.01.2009 12:32, Гретта

Thanks a lot, I'll look for Fabre.

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