Online Resource 2

Dispersal mode and flooding regime as drivers to benthic metacommunity structure in a Neotropical floodplain

Danielle Katharine Petsch*, Gisele Daiane Pinha, Alice Michiyo Takeda

*Correspondence: Danielle Katharine Petsch, Programa de Pós Graduação em Ecologia

de Ambientes Aquáticos Continentais (PEA), Universidade Estadual de Maringá, Av.

Colombo 5790, CEP 87020–900, Maringá, Paraná, Brasil. E-mail:

Table S1 Environmental factors (mean and standard deviation) measured in flood and drought periods in 18 lakes in the Upper Paraná River floodplain.

ABIOTIC / FLOOD / DROUGHT
FACTORS / Mean / S.D. / Mean / S.D.
Temp. / (ºC) / 27.8 / 0.8 / 18.6 / 1.1
DO / (mg/L) / 5.1 / 2.8 / 7.0 / 1.4
pH / 6.4 / 0.5 / 6.4 / 0.5
Cond. / (uS/cm) / 50.0 / 5.4 / 32.9 / 15.4
Turbidity / (NTU) / 2.7 / 4.2 / 10.7 / 5.1
SMT / (ug/L) / 1.4 / 0.9 / 1.6 / 1.5
Alkalinity / (mEq/L) / 323.7 / 45.8 / 140.3 / 70.5
Chloro. / (ug/L) / 3.3 / 2.3 / 10.9 / 7.3
NT / (ug/L) / 776.9 / 95.1 / 937.2 / 468.1
PT / (ug/L) / 20.3 / 5.2 / 37.7 / 24.4
CPOM / (%) / 5.5 / 14.8 / 2.2 / 2.8
FPOM / (%) / 13.8 / 8.2 / 15.1 / 8.8
Pebbles / (%) / 0.0 / 0.0 / 0.4 / 1.5
Granules / (%) / 0.1 / 0.3 / 0.4 / 1.3
VCS / (%) / 0.8 / 1.3 / 0.9 / 1.6
CS / (%) / 2.4 / 2.6 / 2.8 / 2.4
MS / (%) / 11.0 / 12.0 / 8.7 / 7.4
FS / (%) / 15.4 / 11.0 / 15.1 / 12.1
VFS / (%) / 15.4 / 10.9 / 15.1 / 7.9
Mud / (%) / 54.8 / 24.4 / 56.6 / 22.7

S.D.= Standard Deviation, Temp.= Temperature, DO= dissolved oxygen; Cond.= electrical conductivity; SMT= suspended matter total; Chloro.= Chlorophyll, NT= total nitrogen, PT= total phosphorus; CPOM = coarse particulate organic matter; FPOM = fine particulate organic matter; PEB= pebbles; GRA = granules; VCS= very coarse sand; CS= coarse sand; MS= medium sand, FS= fine sand; VFS= very fine sand.