Invertebrate Richness and Hatching Decrease with Sediment Depth in Neotropical Intermittent Ponds.

ABSTRACT: Some groups of invertebrates from intermittent wetlands produce dormant stages in response to environmental fluctuations. Dormancy is a strategy to survive such fluctuations and to persist in extreme aquatic habitats, such as temporary habitats. We investigated the hatching responses of invertebrate dormant stages across different depths of sediment in intermittent ponds. Our hypotheses were: (1) the richness and abundance of invertebrate hatchlings decrease as the depth of the sediment column increases, and (2) the composition of invertebrate hatchlings varies over the wetland sediment depth. Four intermittent ponds were sampled in southern Brazil. One sediment column of 30 cm depth was collected in each pond and stratified into 1 cm thick slices for analysis of the dormant stages. A tota

SUBMITTER: de Oliveira Hoffmann PH 

PROVIDER: S-EPMC10010224 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature