Translator Disclaimer
7 May 2019 CHANGES IN THE DISTRIBUTION AND STATUS OF THE FRESHWATER MUSSEL (BIVALVIA: UNIONIDA) FAUNA OF THE JAMES RIVER BASIN, MISSOURI
Stephen E. McMurray, J. Scott Faiman
Author Affiliations +
Abstract

During 2009–2010, we qualitatively surveyed new and existing locations in the James River Basin, Missouri, to update the distribution and status of the freshwater mussel fauna and determine if changes had occurred over a 25-year period. We calculated a suite of metrics to measure richness, diversity, and community composition. We observed significantly fewer live taxa in the James River mainstem and significantly fewer live individuals in Finley Creek than in a 1982–1984 survey effort, including a nearly complete collapse of the mussel fauna in Finley Creek. Basin-wide and across species, values for probability of extirpation were significantly higher than values for probability of colonization, and all tribes had higher probabilities of local extirpation than colonization. Even locations in the James River Basin with relatively high species richness represented low diversity. In the James River mainstem, declines in diversity and abundance were seen throughout the river, but especially below the confluence with Wilsons Creek.

Stephen E. McMurray and J. Scott Faiman "CHANGES IN THE DISTRIBUTION AND STATUS OF THE FRESHWATER MUSSEL (BIVALVIA: UNIONIDA) FAUNA OF THE JAMES RIVER BASIN, MISSOURI," The Southwestern Naturalist 63(2), 102-111, (7 May 2019). https://doi.org/10.1894/0038-4909-63-2-102
Received: 30 October 2017; Accepted: 2 July 2018; Published: 7 May 2019
JOURNAL ARTICLE
10 PAGES


Share
SHARE
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top