Relative importance of Conservation Reserve Programs to aquatic insect biodiversity in an agricultural watershed in the Midwest, USA

Research output: Contribution to journalArticle

Abstract

The Conservation Reserve Program (CRP) and the Conservation Reserve Enhancement Program (CREP) in the USA offer farmers government financial incentives to take erosive agricultural lands out of production. Many conservation practices are used along streams to improve habitat for stream biota. However, the ecological benefits of these programs to streams are yet to be demonstrated. This study investigates the responses of communities of three sensitive aquatic insect orders (Ephemeroptera, Plecoptera, and Trichoptera or EPT) to CRP and CREP practices in the Kaskaskia River basin, a predominantly agricultural watershed in Illinois, USA. A total of 10,373 EPT specimens were examined from 84 sites across the basin during 2013–2015. Nine environmental variables were used to account for variance in EPT taxonomic diversity, and sets of best regression models were selected based on Akaike information criterion (AICc). AICc importance values and hierarchical variance partitioning revealed three important variables associated with EPT taxa richness: link (number of first order tributaries), soil permeability, and urban land. Two important variables were associated with Shannon and Simpson diversity measures: link and dissolved oxygen. The percentage of CRP/CREP land in the watershed was less important, suggesting that this mosaic of conservation practices as currently implemented in the basin may not affect EPT taxonomic diversity.

Original languageEnglish (US)
Pages (from-to)323-340
Number of pages18
JournalHydrobiologia
Volume829
Issue number1
DOIs
StatePublished - Feb 1 2019

Fingerprint

Conservation Reserve Program
agricultural watersheds
aquatic insects
conservation areas
conservation practices
watershed
biodiversity
insect
basins
economic incentives
Plecoptera
Trichoptera
Ephemeroptera
dissolved oxygen
agricultural land
farmers
environmental factors
organisms
habitats
Akaike information criterion

Keywords

  • Bioassessment
  • Conservation practices
  • EPT taxa
  • Illinois streams
  • Macroinvertebrates

ASJC Scopus subject areas

  • Aquatic Science

Cite this

@article{179680c740f74d4a889e8234b97b6c04,
title = "Relative importance of Conservation Reserve Programs to aquatic insect biodiversity in an agricultural watershed in the Midwest, USA",
abstract = "The Conservation Reserve Program (CRP) and the Conservation Reserve Enhancement Program (CREP) in the USA offer farmers government financial incentives to take erosive agricultural lands out of production. Many conservation practices are used along streams to improve habitat for stream biota. However, the ecological benefits of these programs to streams are yet to be demonstrated. This study investigates the responses of communities of three sensitive aquatic insect orders (Ephemeroptera, Plecoptera, and Trichoptera or EPT) to CRP and CREP practices in the Kaskaskia River basin, a predominantly agricultural watershed in Illinois, USA. A total of 10,373 EPT specimens were examined from 84 sites across the basin during 2013–2015. Nine environmental variables were used to account for variance in EPT taxonomic diversity, and sets of best regression models were selected based on Akaike information criterion (AICc). AICc importance values and hierarchical variance partitioning revealed three important variables associated with EPT taxa richness: link (number of first order tributaries), soil permeability, and urban land. Two important variables were associated with Shannon and Simpson diversity measures: link and dissolved oxygen. The percentage of CRP/CREP land in the watershed was less important, suggesting that this mosaic of conservation practices as currently implemented in the basin may not affect EPT taxonomic diversity.",
keywords = "Bioassessment, Conservation practices, EPT taxa, Illinois streams, Macroinvertebrates",
author = "South, {Eric J.} and Dewalt, {Ralph Edward} and Yong Cao",
year = "2019",
month = "2",
day = "1",
doi = "10.1007/s10750-018-3842-2",
language = "English (US)",
volume = "829",
pages = "323--340",
journal = "Hydrobiologia",
issn = "0018-8158",
publisher = "Springer Netherlands",
number = "1",

}

TY - JOUR

T1 - Relative importance of Conservation Reserve Programs to aquatic insect biodiversity in an agricultural watershed in the Midwest, USA

AU - South, Eric J.

AU - Dewalt, Ralph Edward

AU - Cao, Yong

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The Conservation Reserve Program (CRP) and the Conservation Reserve Enhancement Program (CREP) in the USA offer farmers government financial incentives to take erosive agricultural lands out of production. Many conservation practices are used along streams to improve habitat for stream biota. However, the ecological benefits of these programs to streams are yet to be demonstrated. This study investigates the responses of communities of three sensitive aquatic insect orders (Ephemeroptera, Plecoptera, and Trichoptera or EPT) to CRP and CREP practices in the Kaskaskia River basin, a predominantly agricultural watershed in Illinois, USA. A total of 10,373 EPT specimens were examined from 84 sites across the basin during 2013–2015. Nine environmental variables were used to account for variance in EPT taxonomic diversity, and sets of best regression models were selected based on Akaike information criterion (AICc). AICc importance values and hierarchical variance partitioning revealed three important variables associated with EPT taxa richness: link (number of first order tributaries), soil permeability, and urban land. Two important variables were associated with Shannon and Simpson diversity measures: link and dissolved oxygen. The percentage of CRP/CREP land in the watershed was less important, suggesting that this mosaic of conservation practices as currently implemented in the basin may not affect EPT taxonomic diversity.

AB - The Conservation Reserve Program (CRP) and the Conservation Reserve Enhancement Program (CREP) in the USA offer farmers government financial incentives to take erosive agricultural lands out of production. Many conservation practices are used along streams to improve habitat for stream biota. However, the ecological benefits of these programs to streams are yet to be demonstrated. This study investigates the responses of communities of three sensitive aquatic insect orders (Ephemeroptera, Plecoptera, and Trichoptera or EPT) to CRP and CREP practices in the Kaskaskia River basin, a predominantly agricultural watershed in Illinois, USA. A total of 10,373 EPT specimens were examined from 84 sites across the basin during 2013–2015. Nine environmental variables were used to account for variance in EPT taxonomic diversity, and sets of best regression models were selected based on Akaike information criterion (AICc). AICc importance values and hierarchical variance partitioning revealed three important variables associated with EPT taxa richness: link (number of first order tributaries), soil permeability, and urban land. Two important variables were associated with Shannon and Simpson diversity measures: link and dissolved oxygen. The percentage of CRP/CREP land in the watershed was less important, suggesting that this mosaic of conservation practices as currently implemented in the basin may not affect EPT taxonomic diversity.

KW - Bioassessment

KW - Conservation practices

KW - EPT taxa

KW - Illinois streams

KW - Macroinvertebrates

UR - http://www.scopus.com/inward/record.url?scp=85058136949&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85058136949&partnerID=8YFLogxK

U2 - 10.1007/s10750-018-3842-2

DO - 10.1007/s10750-018-3842-2

M3 - Article

AN - SCOPUS:85058136949

VL - 829

SP - 323

EP - 340

JO - Hydrobiologia

JF - Hydrobiologia

SN - 0018-8158

IS - 1

ER -