The influence of flood frequency and duration on microcrustacean egg bank composition in dryland river floodplain sediments

• DOI: 10.1111/fwb.13724
• Publication Date: 2021-05-24T13:56:26Z
• Authors: Nipa Chaki; Michael Reid; Daryl L. Nielsen
• Keywords: 0106 biological sciences; 13. Climate action; 14. Life underwater; 15. Life on land; 01 natural sciences

Abstract Several studies of temporary floodplain wetlands suggest that flood history is important to microcrustacean egg bank composition and hatching responses. However, these have largely focussed on contrasts among less frequently flooded areas (areas every year once 10–20 years) known about variation at the more end gradient (from multiple floods per 2 years). Similarly, effects duration banks not been examined in detail. Thus, this study examines spatial higher frequencies relation inundation duration. Surface sediment samples were collected from dry anabranches Macintyre River Australia during February 2018, with a range frequency approximately four times one years. Anabranches selected randomly predefined classes clustered into three different groups based variables. Soil deep shallow locations within anabranches, depth assumed be proxy for inundation. Sediment inundated mesocosms hatched microcrustaceans sampled over 6 weeks. Microcrustacean abundance assemblage varied by sites, relative depth, There was no groups. Highest numbers deeper which reflect differences due longer areas. Duration also influenced response bank, unit time first final weeks 6‐week trial than middle Species richness taxa anabranches. The highlights critical influence patterns sediments. Therefore, changes potential assemblages thus further trophic interactions wetlands. ​