Premium
Colonising Strategies and Diapause of Planktonic Rotifers (Monogononta, Rotifera) during Aquatic and Terrestrial Phases in a Floodplain (Lower Oder Valley, Germany)
Author(s) -
Schröder Thomas
Publication year - 2001
Publication title -
international review of hydrobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 1434-2944
DOI - 10.1002/1522-2632(200110)86:6<635::aid-iroh635>3.0.co;2-x
Subject(s) - floodplain , diapause , plankton , biology , ecology , flooding (psychology) , population , dormancy , larva , botany , germination , sociology , psychotherapist , psychology , demography
The floodplains of the River Oder are inundated in winter and spring and are desiccated during summer. The plankton community developing towards the end of winter is dominated by monogonont rotifers. Some species maintain populations on the flooded areas as well as in the remaining permanent waters after flooding. Other species are found during the inundation period only. These species produce drought‐resistant diapause stages, beginning at low population densities between 5 to 36 females L –1 . Experiments showed that 9 out of 10 species, which were observed to produce resting eggs during the aquatic phase, were able to survive the terrestrial phase through dormancy in the desiccated floodplain soils. Other species colonise the temporarily inundated areas from the permanent waters again during each flooding period.