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Development of fiddler beetles

Community and Forum → Insects biology and faunistics → Development of fiddler beetles

Лекс, 14.04.2006 15:44

The larvae of the bronzer have very well developed, but inactive legs, on a flat surface it moves on its back, with undulating movements of the back muscles. Please explain why! confused.gif

This post was edited by Lex - 17.04.2006 17: 26

Comments

14.04.2006 16:28, RippeR

Apparently, their muscles are so located that it is difficult for them to unbend, so they turn over on a flat surface and cannot crawl to anything else..
Likes: 1

14.04.2006 23:23, Chromocenter

and if the larva farts not on a flat surface? And in something like a move? Maybe then he clings to the walls with his feet and helps himself to crawl?
Likes: 1

15.04.2006 19:13, Guest

The fact of the matter is that the larva is perfectly unbent and even turned on its stomach is perevovachivaetsya on its back and quickly crawls away. While moving on the glass tube with glued grains of sand, she never caught on, although her feet touched the surface! eek.gif

15.04.2006 19:15, Лекс

"It's me! shuffle.gif

15.04.2006 21:46, RippeR

Even the larvae of bronzes are engaged in practices to hone the skills of owning their own body. After all self improvement smile.gif

16.04.2006 12:02, Chromocenter

"While moving on the glass tube with glued grains of sand, it never caught, although the feet touched the surface! "
Well, if so, then their legs are simply because there are no genes that inhibit their development: they grow and do not interfere, so the mechanisms that inhibit development have not been formed.
Likes: 2

16.04.2006 15:47, Лекс

"grow up and do not interfere"
Even as they interfere! And the nutrients spent on growth!

umnik.gif

16.04.2006 15:58, Dracus

Well, this is not a particularly urgent interference hindrance smile.gifis another matter, how did they come to this method of movement in general? Many others live in the same environment and do just fine with traditional modes of transportation; the Bronzes seem to have lost them completely.

This post was edited by Dracus - 04/16/2006 15: 58

16.04.2006 16:03, Лекс

so they move because in particularly narrow places the legs are pressed to the body. This is a hindrance!!!
yes.gif

This post was edited by Lex - 17.04.2006 17: 28

16.04.2006 16:11, Chromocenter

"It's a hindrance!!!"
Well, whether this is a hindrance or not - let the Bronzers decide for themselves. And not all places are probably "particularly narrow".

16.04.2006 16:13, Лекс

I doubt that the humus layers contain exceptionally spacious halls...

16.04.2006 16:17, Chromocenter

Yes, probably... But even if it's a hindrance, you still don't know what it is. Maybe the selection pressure was so weak that genes (gene activities) that could inhibit the development of legs are formed too slowly or even covered by genetic drift?

16.04.2006 16:22, Лекс

"genetic drift"
by what? confused.gif

16.04.2006 17:14, Chromocenter

Natural selection for a trait that has a very small advantage, that is, the survival coefficient of its owner is very little higher than unity, may be weaker than genetic drift, that is, the fixation of the allele in a random way. Whether this happens or not depends on the effective population size. It may be that the signs that represent the first steps in the disappearance of legs in bronzes (you can not really "make" them with one mutation, since we are not talking about" destroying " the gene, but about its inhibition), for bronzes provide exactly such survival coefficients and are not fixed.

17.04.2006 7:41, Dmitrii Musolin

back to the original question. Apparently, they have something similar to the movement mechanism of goldfish (Buprestidae). In goldenrods, the passages in the wood are not round in cross-section, but "flattened", so they use their dorsal motor corns more when moving than their legs. The habitat of bronzer larvae (soil) is similar to that of goldenrod larvae (wood).

17.04.2006 17:16, Лекс

Well, I wouldn't say soil, but rather something between rotted leaves and earth. And although the wood is harder, you're right!

This post was edited by Lex - 17.04.2006 17: 29

17.04.2006 17:18, Лекс

Can I be more specific about gold coins?

18.04.2006 12:09, Dmitry Vlasov

And what kind of bronzes were they referring to?
I bred ours-golden in wood dust and copper in the rotten building material of anthills. So they perfectly used their legs for movement. They'll eat everything around them and crawl on. With their feet, they seemed to catch on, and the body was pulled forward. then the body was expanded, jammed, and the head was pushed further into the substrate...
As for goldsmiths, their legs are much more reduced than those of bronzes.

18.04.2006 12:50, Bear

You need to take a group of larvae with and without legs. Play the "race" and see who will be more successful. smile.gif

19.04.2006 18:28, Tarxan

It's a little off topic, but you can't imagine how great it was to watch a bronzer pupa complete its metamorphosis and turn into a beetle in a matchbox !

19.04.2006 19:29, guest: a

In addition, the legs of the larvae of bronzes are needed in order to hold the particles of writing placed on the surface of the substrate. Put cucumber slices in the cage with Pachnoda marginata and watch it if you are interested.
[Techt pyrividen from transliteration]

20.04.2006 17:35, Guest

I told you about the stinky bronze. To be honest, I've never seen the bronze girl eat, it didn't work out, but as far as I could see, she didn't do it! "hold the scribble particles" Are you sure what she was holding? eek.gif

21.04.2006 19:50, guest: а

And I'm talking about the Congolese bronze. It is very difficult to see the larva under the ground, but I assure you, it holds a piece of vegetable just like a squirrel, current upside down smile.gif

21.04.2006 19:54, Лекс

Amazing! cool.gif If anyone knows, write some other interesting facts!

22.04.2006 0:41, RippeR

In fact, I used to put banana peels on the Congolese ones, when I picked them up later, the larvae ' heads and the part of the torso with the legs sticking out upside down.. As soon as I did this, they immediately hid. If I pulled them up, they quickly crawled underground.

22.04.2006 20:14, Guest

Have you seen or smelled it?

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