University of Illinois Urbana-Champaign

Ellipse (Venustaconcha ellipsiformis) and Spike (Eurynia dilatata) Status and Recommendations for the Chicago Wilderness Area

Andree, Sara R; Douglass, Sarah A; Stodola, Alison P.

Permalink

https://hdl.handle.net/2142/108373

Description

Title
Ellipse (Venustaconcha ellipsiformis) and Spike (Eurynia dilatata) Status and Recommendations for the Chicago Wilderness Area
Author(s)
  • Andree, Sara R
  • Douglass, Sarah A
  • Stodola, Alison P.
Issue Date
2020-02-17
Keyword(s)
  • restoration
  • freshwater mussels
  • Chicago Wilderness
  • Ellipse
  • Spike
Geographic Coverage
Chicago Wilderness Area, Illinois
Abstract
The goal of this project was to use Bayesian modeling techniques in a Bayesian Decision Network to estimate the best method of reintroduction of Ellipse (Venustaconcha ellipsiformis) and Spike (Eurynia dilatata) to watersheds within the Chicago Wilderness Area (CWA), and assess current population status of each species within the region. A combination of long-term timed search data, targeted mussel density sampling in 2018, cost assessments, and survey data gathered from experts was used to populate models and determine optimal reintroduction strategies for each species in two rivers, the West Branch DuPage River and South Branch Kishwaukee River. An effort was also made to determine the importance of density vs presence data collection when building Bayesian Decision Networks, to inform future sampling needs. Additionally, models were evaluated for sensitivity to input and the impact of expert opinion bias was assessed. Recommendations are presented for each species in our two target watersheds, and future steps needed to facilitate restoration are discussed.
Publisher
Illinois Natural History Survey
Series/Report Name or Number
Technical Report INHS 2020 (16)
Type of Resource
text
Permalink
http://hdl.handle.net/2142/108373
Sponsor(s)/Grant Number(s)
IDNR State Wildlife Initiative Grants Program T-99-R-1
Copyright and License Information
This document is a product of the Illinois Natural History Survey, and has been selected and made available by the Illinois Natural History Survey and the University Library, University of Illinois at Urbana-Champaign. It is intended solely for noncommercial research and educational use, and proper attribution is requested.

Owning Collections

Technical Reports - Illinois Natural History Survey PRIMARY
Reports produced by INHS staff, usually as deliverables for assessment projects funded by federal or state agencies or non-governmental organizations.