calc_spear: SPEcies At Risk (SPEAR) metric

In aquaMetrics/macroinvertebratesMetrics: Macroinvertebrate Biotic indices

SPEcies At Risk (SPEAR) metric

Description

Indicator based on biological traits used to detect effects of pesticides on non-target freshwater invertebrate organisms. It can be calculated at Taxonomic Levels 2, 4 and 5.

Usage

calc_spear(data, recoveryArea = "unknown", taxa_list = "TL2")

Arguments

data	Dataframe of results with four columns: SAMPLE_NUMBER, TAXON, SPEAR_SPECIES, RESULT
recoveryArea	There are 3 different paramaters depending on availability of "Recovery areas" information: "Absent" - No presence of recovery areas "Present" - Presence of recovery areas "Unknown" - No information available
taxa_list	The taxonomic level the sample(s) have been identified at according to specificed taxa lists as described in WFD100 Further Development of River Invertebrate Classification Tool. Either "TL2" - Taxa list 2, "TL4" - Taxa list 4 or "TL5" - Taxa list 5.

Value

dataframe with metric outputs

References

Liess M. & Von der Ohe P. 2005. Analyzing effects of pesticides on invertebrate communities in streams. Environ Toxicol Chem. 24: 954-965.

Wogram J. & Liess M. 2001. Rank ordering of macroinvertebrate species sensitivity to toxic compounds by comparison with that of Daphnia magna. Bull Environ Contam Toxicol. 67: 360-367

Liess M., Schaefer R., Schriever C. 2008. The footprint of pesticide stress in communities - Species traits reveal community effects of toxicants. Science of the Total Environment. 406: 484-490

See Also

filter_spear

Examples

spearOutput <- calc_spear(demo_data, taxa_list = "TL2")

aquaMetrics/macroinvertebratesMetrics documentation built on Feb. 3, 2024, 2:35 a.m.