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Authors Shields, EC; Moore, KA
Author Full Name Shields, Erin C.; Moore, Kenneth A.
Title Effects of sediment and salinity on the growth and competitive abilities of three submersed macrophytes
Source AQUATIC BOTANY
Language English
Document Type Article
Author Keywords Submersed aquatic vegetation; Complementarity; Competition; Restoration; Chesapeake Bay
Keywords Plus PLANT-SPECIES RICHNESS; TIDAL FRESH-WATER; AQUATIC VEGETATION; VALLISNERIA-AMERICANA; EXPERIMENTAL ECOSYSTEMS; HABITAT REQUIREMENTS; COMMUNITY STRUCTURE; LIGHT AVAILABILITY; CHESAPEAKE BAY; ABUNDANCE
Abstract Submersed macrophytes are generally found in multispecies beds, with the dominance of individual species varying in both space and time. In estuarine environments, these plants can grow across a range of environmental conditions which may alter species interactions. Three species common to the Chesapeake Bay region, Vallisneria americana (wild celery), Heteranthera dubia (water stargrass), and Stuckenia pectinata (sago pondweed), were planted in a microcosm designed to test their growth and interactions (relative yielding) under a range of conditions of salinity (0, 5, or 10), sediment type (mud or sand), and species combinations. H. dubia was most sensitive to elevated salinity, while sediment type impacted only V. americana, performing better in mud compared with sand. V. americana and H. dubia were strong competitors, overyielding in many treatments when grown in mixture, while S. pectinata never overyielded and frequently underyielded. Interspecific competition was only strong between H. dubia and S. pectinata under 0 salinity, regardless of sediment type. V. americana on the other hand, showed strong interspecific competition with S. pectinata across multiple salinity and sediment types, indicating that this species is able to compete well across a wider range of environmental conditions. Our results suggest that H. dubia and V. americana are strong candidates for multi-species restoration, as positive interactions were observed when grown together. This measure of complementarity provides evidence for increased mixed bed plant performance under environmental conditions that would typically be more stressful to each growing alone. (C) 2016 Elsevier B.V. All rights reserved.
Author Address [Shields, Erin C.; Moore, Kenneth A.] Coll William & Mary, Sch Marine Sci, Virginia Inst Marine Sci, 1375 Greate Rd, Gloucester Point, VA 23062 USA
Reprint Address Shields, EC (corresponding author), Coll William & Mary, Sch Marine Sci, Virginia Inst Marine Sci, 1375 Greate Rd, Gloucester Point, VA 23062 USA.
E-mail Address eshields@vims.edu; moore@vims.edu
Funding Agency and Grant Number U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, MS
Funding Text Funding for this project was provided by the U.S. Army Engineer Research and Development Center (ERDC) in Vicksburg, MS. We also thank Jessie Jarvis, Brittany Haywood, Steve Snyder, Voight Hogge, Betty Neikirk, Willy Reay, Jim Goins, Dave Parrish, Annie Markwith, Elizabeth Francis, Amber Knowles, and Jeremiah Walawender for help with microcosm construction, field collection, experimental sampling and processing. This is contribution No. XXXX from the Virginia Institute of Marine Science, School of Marine Science, College of William and Mary.
Times Cited 6
Total Times Cited Count (WoS, BCI, and CSCD) 8
Publisher ELSEVIER SCIENCE BV
Publisher City AMSTERDAM
Publisher Address PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
ISSN 0304-3770
29-Character Source Abbreviation AQUAT BOT
ISO Source Abbreviation Aquat. Bot.
Publication Date JUL
Year Published 2016
Volume 132
Beginning Page 24
Ending Page 29
Digital Object Identifier (DOI) 10.1016/j.aquabot.2016.03.005
Page Count 6
Web of Science Category Plant Sciences; Marine & Freshwater Biology
Subject Category Plant Sciences; Marine & Freshwater Biology
Document Delivery Number DO4EG
Unique Article Identifier WOS:000377734000006
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