Language: Swedish
In the second volume on snails, the lung snails are presented.
Grapevine snail, garden snail and killer snail are well known by many and often infamous by homeowners. Up to 20 of the book's 193 species can be found in garden environments, and the vast majority are harmless. In addition to the inhabitants of your garden, you will also get to know much less known shells on Calffjäll, in lakes, forests and seas. Is a snail a shell or is it the other way around? For example, snails served in restaurants are actually shells. A good rule of thumb for distinguishing between these molluscs is that those with shells are called molluscs and those without shells are called snails. But snails are actually shells that, in the course of evolution, got rid of their shells in order to be able to move faster. Several snail species still have a small remnant of shell under a fold of skin. Both groups are closely related and belong to the superorder true lung snails.
Snails are one of the animal groups that have the highest proportion of alien species, i.e. species that have been brought into the country by humans and have remained. As lung snails have the very special ability to fertilize themselves, it is enough for only one individual to enter the country to start a completely new population. The increased import of garden plants and a warmer climate has made it easier for foreign snail species to gain a foothold in our country. The book includes roughly 30 exotic species, such as the black-headed snail and southern heath snail. The species presented in this book are found in almost every environment in the country, from Calf Mountains to forests, meadows, lakes, streams and seas, as well as in every garden and residential area. They are usually found at ground level, but some snails like to crawl on tree trunks, such as the elongated coiled snails. There are also snails and slugs that are adapted for a life underground, such as the light-shy species of mollusk and Caucasian worm snail. The three superorders presented in this volume each utilize three different habitats. Lumpy snails live in the sea, true lungfish live on land, and freshwater lungfish live in fresh water.
Product information
Authors: Ted von Proschwitz, Jonas Roth & Kenneth Lundin
Illustrator: Robert Back
Photographer: Roth Jonas
Edition: 1
ISBN: 9789187853678
Language: Swedish
Weight: 2404 grams
Series: Nationalnyckeln till Sveriges flora och fauna
Released: 2023
Publisher: SLU Artdatabanken
Pages: 528