Habitat loss and fragmentation induce a decline and endangerment of freshwater organisms such as Aeshna viridis, an endangered dragonfly species characterised by a specific insect–plant association to the macrophyte Stratiotes aloides. In order to implement conservation measures, a good level of knowledge about the occurrence, habitat requirements and quality, as well as patch size of…
At a ditch near Tribsees in northeastern Germany a young individual of the freshwater snail Lymnaea stagnalis was photographed while attached to the dorsum of the abdomen of a female Aeshna viridis, after the odonate took off after oviposition in Stratiotes aloides. This is the first known case for odonate-born dispersal of freshwater gastropods.