Hygropetric biotope

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A hygropetric biotope is a habitat that is located on stones and is constantly covered by a thin film of water. It is sometimes assumed that the surfaces in question are steep or vertical, over which the water flows. Some definitions of the term state a thickness of the water film of two millimeters as the upper limit. The water is constantly exchanged by inflow or capillarity , it is saturated with oxygen and has little detritus .

The vegetation of hygropetric areas often consists of diatoms (Bacillariophyta) and blue-green algae (Cyanobacteria). Typical animals are various insects , especially two-winged birds (Diptera) and caddis flies (Trichoptera). Hygropetric biotopes can occur near springs and splash zones of fast flowing streams, at waterfalls or in caves, for example.

Individual evidence

  1. ↑ Karl M. Wantzen et al .: Riparian Wetlands of Tropical streams . In: David Dudgeon (Ed.): Tropical Stream Ecology , Academic Press, 2011. pp. 199-216.
  2. ↑ David C. Culver and Tanja Pipan: Glossary . In: The Biology of Caves and Other Subterranean Habitats , Oxford University Press, 2009. p. 217. ISBN 978-0-19-921992-6 .
  3. ↑ a b Elisabeth Danecker: Studies on the hygropetric fauna. Biology and ecology of Stactobia and Tinodes (Insect., Trichopt.) In: International revue of the entire hydrobiology and hydrography , volume 46, number 2, 1961. pp. 214-254. doi : 10.1002 / iroh.19610460206
  4. ↑ Rüdiger Wagner: Red List of Endangered Dark Mosquitoes (Diptera: Thaumaleidae) Bavaria (PDF; 40 kB) . BayLfU / 166/2003. Online, accessed February 2, 2013.
  5. ↑ David C. Culver and Tanja Pipan: The Subterranean Domain . In: The Biology of Caves and Other Subterranean Habitats , Oxford University Press, 2009. p. 14. ISBN 978-0-19-921992-6 .

Web links

  • Hygropetric Habitats . From: Hydrophiloidea.org - Facilitating research on water scavenger beetles