The use of parasites as indicators of ecosystem health as compared to insects in freshwater lakes of the Inland Northwest

John Shea, Gordon J. Kersten, Chris M. Puccia, Andy T. Stanton, Suzi N. Stiso, Erika S. Helgeson, Emily J. Back

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Trematode parasites have complex life cycles, requiring multiple hosts. If these parasites are present in an ecosystem, then one can infer that their respective hosts must also be present. Thus, these parasites may serve as reliable indicators of species diversity in an ecosystem. To test this, we sampled larval trematodes and aquatic insects from three freshwater lakes in Idaho that varied in heavy metal pollution and three lakes in Washington that varied in agricultural use. We hypothesized that if parasites do serve as reliable indicators of ecosystem health, then parasite diversity should be higher at the least disturbed sites and should positively correlate with insect diversity. We found that the Shannon diversity index for parasites was highest at the WA reference lake (1.36) compared to the two WA lakes (0.54 and 0) exposed to cattle grazing. The ID lake with the highest levels of heavy metals experienced the highest insect diversity, but a low trematode diversity. We conclude that parasite diversity indices work as well as insect diversity indices as indicators of ecosystem health, especially in instances of heavy metal pollution.

Original languageEnglish
Pages (from-to)184-188
Number of pages5
JournalEcological Indicators
Volume13
Issue number1
DOIs
StatePublished - Feb 2012
Externally publishedYes

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ecosystem health
parasite
insect
parasites
lakes
insects
lake
diversity index
Trematoda
heavy metals
heavy metal
pollution
aquatic insects
ecosystems
ecosystem
indicator
environmental health
Ecosystem
Health
indicator species

All Science Journal Classification (ASJC) codes

  • Ecology
  • Decision Sciences(all)
  • Ecology, Evolution, Behavior and Systematics

Cite this

The use of parasites as indicators of ecosystem health as compared to insects in freshwater lakes of the Inland Northwest. / Shea, John; Kersten, Gordon J.; Puccia, Chris M.; Stanton, Andy T.; Stiso, Suzi N.; Helgeson, Erika S.; Back, Emily J.

In: Ecological Indicators, Vol. 13, No. 1, 02.2012, p. 184-188.

Research output: Contribution to journalArticle

Shea, John ; Kersten, Gordon J. ; Puccia, Chris M. ; Stanton, Andy T. ; Stiso, Suzi N. ; Helgeson, Erika S. ; Back, Emily J. / The use of parasites as indicators of ecosystem health as compared to insects in freshwater lakes of the Inland Northwest. In: Ecological Indicators. 2012 ; Vol. 13, No. 1. pp. 184-188.
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