Spatial and temporal examination of bivalve communities in several estuaries of Southern California and Northern Baja California, MX

TitleSpatial and temporal examination of bivalve communities in several estuaries of Southern California and Northern Baja California, MX
Publication TypeJournal Article
Year of Publication2016
AuthorsNovoa A., Talley T.S, Talley D.M, Crooks J.A, Reyns N.B
JournalPlos One
Volume11
Date Published2016/02
Type of ArticleArticle
ISBN Number1932-6203
Accession NumberWOS:000369550200100
Keywordsabundance; assemblages; british-columbia; chesapeake bay; coastal; declines; habitats; land-use; patterns; predation
Abstract

A combination of historical bivalve surveys spanning 30-50 years and contemporary sampling were used to document the changes in bivalve community structure over time at four southern California and one northern Baja California estuaries. While there are limitations to the interpretation of historic data, we observed generally similar trends of reduced total bivalve species richness, losses of relatively large and/or deeper-dwelling natives, and gains of relatively small, surface dwelling introduced species across the southern California estuaries, despite fairly distinct bivalve communities. A nearly 50-year absence of bivalves from two wetlands surveyed in a Baja California estuary continued. A combination of site history and current characteristics (e.g., location, depth) likely contributes to maintenance of distinct communities, and both episodic and gradual environmental changes likely contribute to within-estuary temporal shifts (or absences). We highlight future research needed to determine mechanisms underlying patterns so that we can better predict responses of bivalve communities to future scenarios, including climate change and restoration.

DOI10.1371/journal.pone.0148220
Student Publication: 
No
sharknado