von Jäger » 2. Nov 2004 13:25
Hibernation is a exiting topic. And I can see that there are a lot of diffrent approaches to it.
I´ve been keeping european insects for some years now. And some of them really need hibernation, because of their life cycle. Some water bugs for an example only needs hibernation during their larvea periode, and while they are in the pupae. But as adults they can live well for years without it. Other insects has seasonal lifecycles that requires a lowering of temperature. But all of these insects are limited, because they NEED the hibernation factor to start or relay certain factors in their life cycle. There are numerous amount of insects that only do hibernate to avoid diffrent unsuitable conditions, not because they need the hibernation as a factor. Just think of the common housefly, it does not need hibernation. But it can hibernate if conditions get too extreme.
My point is that there MUST be ants that don´t need hibernation as an factor, but still is able to hibernate. I write MUST, because ants have been such a succesfull group of insects so somewhere it has too. So many other groups of insects, also long living ones, are able to hibernate when they live in cold climate. And when they live in warmer regions of the world, they don´t hibernate.
I must try it out with Myrmica rubra, when spring comes.