Category

Variable

Definition

Richness

RICH

Total richness (number of non-ambiguous taxa)

EPTR

Richness composed of mayflies, stoneflies, and caddisflies

EPT_CHR

Ratio of EPT richness (EPTR) to midge richness (CHR)

EPEMR

Richness composed of mayflies

PLECOR

Richness composed of stoneflies

PTERYR

Richness composed of Pteronarcys

TRICHR

Richness composed of caddisflies

ODONOR

Richness composed of odonates

COLEOPR

Richness composed of Coleoptera

DIPR

Richness composed of Diptera

CHR

Richness composed of midges

ORTHOR

Richness composed of Orthocladinae midges

ORTHO_CHR

Ratio of orthoclad richness (ORTHOR) to midge richness (CHR)

TANYR

Richness composed of Tanytarsanii midges

TANY_CHR

Ratio of Tanytarsanii richness (TANYR) to midge richness (CHR)

NCHDIPR

Richness composed of non-midge Diptera

NONINSR

Richness composed of non-insects

ODIPNIR

Richness composed of non-midge Diptera and non-insects

MOLCRUR

Richness composed of molluscs and crustaceans

GASTROR

Richness composed of Gastropoda

BIVALR

Richness composed of Bivalvia

CORBICR

Richness composed of Corbicula

AMPHIR

Richness composed of Amphipoda

ISOPR

Richness composed of Isopoda

OLIGOR

Richness composed of Oligochaeta

% Richness

EPTRp

Perecntage of total richness composed of mayflies, stoneflies, and caddisflies

EPT_CHRp

Ratio of EPT perecntage richness (EPTRp) to midge perecntage richness (CHRp)

EPEMRp

Perecntage of total richness composed of mayflies

PLECORp

Perecntage of total richness composed of stoneflies

PTERYRp

Perecntage of total richness composed of Pteronarcys

TRICHRp

Perecntage of total richness composed of caddisflies

ODONORp

Perecntage of total richness composed of odonates

COLEOPRp

Perecntage of total richness composed of Coleoptera

DIPRp

Perecntage of total richness composed of Diptera

CHRp

Perecntage of total richness composed of midges

ORTHORp

Perecntage of total richness composed of Orthocladinae midges

ORTHO_CHRp

Ratio of orthoclad percentage richness (ORTHORp) to midge percentage richness (CHRp)

TANYRp

Perecntage of total richness composed of Tanytarsanii midges

TANY_CHRp

Ratio of Tanytarsanii percentage richness (TANYRp) to midge percentage richness (CHRp)

NCHDIPRp

Perecntage of total richness composed of non-midge Diptera

NONINSRp

Perecntage of total richness composed of non-insects

ODIPNIRp

Perecntage of total richness composed of non-midge Diptera and non-insects

MOLCRURp

Perecntage of total richness composed of molluscs and crustaceans

GASTRORp

Perecntage of total richness composed of Gastropoda

BIVALRp

Perecntage of total richness composed of Bivalvia

CORBICRp

Perecntage of total richness composed of Corbicula

AMPHIRp

Perecntage of total richness composed of Amphipoda

ISOPRp

Perecntage of total richness composed of Isopoda

OLIGORp

Perecntage of total richness composed of Oligochaeta

Abundance (density, number/m²)

ABUND

Total number (abundance) of non-ambiguous taxa in the sample

EPT

Abundance composed of mayflies, stoneflies, and caddisflies

EPT_CH

Ratio of EPT Abundance (EPT) to midge abundance (CH)

EPEM

Abundance composed of mayflies

PLECO

Abundance composed of stoneflies

PTERY

Abundance composed of Pteronarcys

TRICH

Abundance composed of caddisflies

ODONO

Abundance composed of odonates

COLEOP

Abundance composed of Coleoptera

DIP

Abundance composed of Diptera

CH

Abundance composed of midges

ORTHO

Abundance composed of Orthocladinae midges

ORTHO_CH

Ratio of orthoclad abundance (ORTHO) to midge abundance (CH)

TANY

Abundance composed of Tanytarsanii midges

TANY_CH

Ratio of Tanytarsanii abundance (TANY) to midge abundance (CH)

NCHDIP

Abundance composed of non-midge Diptera

NONINS

Abundance composed of non-insects

ODIPNI

Abundance composed of non-midge Diptera and non-insects

MOLCRU

Abundance composed of molluscs and crustaceans

GASTRO

Abundance composed of Gastropoda

BIVAL

Abundance composed of Bivalvia

CORBIC

Abundance composed of Corbicula

AMPHI

Abundance composed of Amphipoda

ISOP

Abundance composed of Isopoda

OLIGO

Abundance composed of Oligochaeta

% Abundance (density, number/m²)

EPTp

Percentage of total abundance composed of mayflies, stoneflies, and caddisflies

EPT_CHp

Ratio of EPT percentage of total abundance (EPTp) to midge percentage of total abundance (CHp)

EPEMp

Percentage of total abundance composed of mayflies

PLECOp

Percentage of total abundance composed of stoneflies

PTERYp

Percentage of total abundance composed of Pteronarcys

TRICHp

Percentage of total abundance composed of caddisflies

ODONOp

Percentage of total abundance composed of odonates

COLEOPp

Percentage of total abundance composed of Coleoptera

DIPp

Percentage of total abundance composed of Diptera

CHp

Percentage of total abundance composed of midges

ORTHOp

Percentage of total abundance composed of Orthocladinae midges

ORTHO_CHp

Ratio of orthoclad percentage of total abundance (ORTHOp) to midge percentage of total abundance (CHp)

TANYp

Percentage of total abundance composed of Tanytarsanii midges

TANY_CHp

Ratio of Tanytarsanii percentage of total abundance (TANYp) to midge percentage of total abundance (CHp)

NCHDIPp

Percentage of total abundance composed of non-midge Diptera

NONINSp

Percentage of total abundance composed of non-insects

ODIPNIp

Percentage of total abundance composed of non-midge Diptera and non-insects

MOLCRUp

Percentage of total abundance composed of molluscs and crustaceans

GASTROp

Percentage of total abundance composed of Gastropoda

BIVALp

Percentage of total abundance composed of Bivalvia

CORBICp

Percentage of total abundance composed of Corbicula

AMPHIp

Percentage of total abundance composed of Amphipoda

ISOPp

Percentage of total abundance composed of Isopoda

OLIGOp

Percentage of total abundance composed of Oligochaeta

Dominance

Dom1

Percentage of total abundance represented by the most abundant taxon

Dom1R

Number of. taxa in dominance class

Dom2

Percentage of total abundance represented by the two most abundant taxon

Dom2R

Number of taxa in dominance class

Dom3

Percentage of total abundance represented by the three most abundant taxon

Dom3R

Number of. taxa in dominance class

Dom4

Percentage of total abundance represented by the four most abundant taxon

Dom4R

Number of taxa in dominance class

Dom5

Percentage of total abundance represented by the five most abundant taxon

Dom5R

Number of taxa in dominance class

Dominant taxa and % abundance (density, number/m²)

Dom1

Percentage of total abundance represented by the most abundant taxon

TX1

Taxon name

Dom2

Percentage of total abundance represented by the 2nd most abundant taxon

TX2

Taxon name

Dom3

Percentage of total abundance represented by the 3rd most abundant taxon

TX3

Taxon name

Dom4

Percentage of total abundance represented by the 4th most abundant taxon

TX4

Taxon name

Dom5

Percentage of total abundance represented by the 5th most abundant taxon

TX5

Taxon name

Functional groups

   Richness

PA_rich

Richness composed of parasites

PR_rich

Richness composed of predators

OM_rich

Richness composed of omnivores

GC_rich

Richness composed of collector-gatherers

FC_rich

Richness composed of filtering-collectors

SC_rich

Richness composed of scrapers

SH_rich

Richness composed of shredders

PI_rich

Richness composed of piercers

   % Richness

pPA_rich

Percentage of total richness composed of parasites

pPR_rich

Percentage of total richness composed of predators

pOM_rich

Percentage of total richness composed of omnivores

pGC_rich

Percentage of total richness composed of collector-gatherers

pFC_rich

Percentage of total richness composed of filtering-collectors

pSC_rich

Percentage of total richness composed of scrapers

pSH_rich

Percentage of total richness composed of shredders

pPI_rich

Percentage of total richness composed of piercers

FG_rich_class

Percentage of richness that could be assigned a tolerance value

   Abundance (density, number/m²)

PA_abund

Total abundance composed of parasites

PR_abund

Total abundance composed of predators

OM_abund

Total abundance composed of omnivores

GC_abund

Total abundance composed of collector-gatherers

FC_abund

Total abundance composed of filtering-collectors

SC_abund

Total abundance composed of scrapers

SH_abund

Total abundance composed of shredders

PI_abund

Total abundance composed of piercers

   % Abundance

pPA_abund

Percentage of total abundance composed of parasites

pPR_abund

Percentage of total abundance composed of predators

pOM_abund

Percentage of total abundance composed of omnivores

pGC_abund

Percentage of total abundance composed of collector-gatherers

pFC_abund

Percentage of total abundance composed of filtering-collectors

pSC_abund

Percentage of total abundance composed of scrapers

pSH_abund

Percentage of total abundance composed of shredders

pPI_abund

Percentage of total abundance composed of piercers

FG_abund_class

Percentage of abundance that could be assigned to a functional group

Tolerance

   Richness

RichTOL

Average EPA tolerance values for sample based on richness

Intol_rich

Number of taxa in the intolerant class

Modtol_rich

Number of taxa in the moderately tolerant class

Tol_rich

Number of taxa in the tolerant class

   % Richness

Intol_richp

Percentage of taxa richness in the intolerant class

Modtol_richp

Percentage of taxa richness in the moderately tolerant class

Tol_richp

Percentage of taxa richness in the tolerant class

RICH_TOL_CLASS

Percentage of richness that could be assigned a tolerance value

   Abundance (no./m²)

AbundTOL

Abundance-weighted EPA tolerance value for sample

Intol_abund

Total abundance in the intolerant class

Modtol_abund

Total abundance in the moderately tolerant class

Tol_abund

Total abundance in the tolerant class

   % Abundance (density no./m²)

Intol_abundp

Percentage of abundance in the intolerant class

ModTol_abundp

Percentage of abundance in the moderately tolerant class

Tol_abundp

Percentage of abundance in the tolerant class

ABUND_TOL_CLASS

Percentage of abundance that could be assigned a tolerance value

Behavior classes

    Richness

cn_rich

Number of clinger taxa

cb_rich

Number of climber taxa

sp_rich

Number of sprawler taxa

bu_rich

Number of burrower taxa

sw_rich

Number of swimmer taxa

dv_rich

Number of diver taxa

sk_rich

Number of skater taxa

   % Richness

cn_richp

Percentage of richness composed of clinger taxa

cb_richp

Percentage of richness composed of climber taxa

sp_richp

Percentage of richness composed of sprawler taxa

bu_richp

Percentage of richness composed of burrower taxa

sw_richp

Percentage of richness composed of swimmer taxa

dv_richp

Percentage of richness composed of diver taxa

sk_richp

Percentage of richness composed of skater taxa

BEHAV_RICH_CLASS

Percentage of total taxa richness that was assigned a behavioral trait

   Abundance (no./m²)

cn_abund

Abundance of clinger taxa

cb_abund

Abundance of climber taxa

sp_abund

Abundance of sprawler taxa

bu_abund

Abundance of burrower taxa

sw_abund

Abundance of swimmer taxa

dv_abund

Abundance of diver taxa

sk_abund

   % Abundance (density no./m²)

cn_abundp

Percentage of abundance composed of clinger taxa

cb_abundp

Percentage of abundance composed of climber taxa

sp_abundp

Percentage of abundance composed of sprawler taxa

bu_abundp

Percentage of abundance composed of burrower taxa

sw_abundp

Percentage of abundance composed of swimmer taxa

dv_abundp

Percentage of abundance composed of diver taxa

sk_abundp

Percentage of abundance composed of skater taxa

BEHAV_Abund_Class

Percentage of total abundance that was assigned a behavioral trait

Ordination scores (non-metric multidimensional scaling, NMDS)

NMDS1

Axis-1 site score, 4th root transformation, Bray-Curtis similarity for RTH, Jaccard similarity for QMH samples

NMDS2

Axis-2 site score, 4th root transformation,
Bray-Curtis similarity for RTH, Jaccard similarity for QMH samples