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| Publication Type | J |
| Authors | Veldkornet, DA; Potts, AJ; Adams, JB |
| Author Full Name | Veldkornet, D. A.; Potts, A. J.; Adams, J. B. |
| Title | The distribution of salt marsh macrophyte species in relation to physicochemical variables |
| Source | SOUTH AFRICAN JOURNAL OF BOTANY |
| Language | English |
| Document Type | Article |
| Author Keywords | Salt marshes; Elevation; Tidal inundation; Habitat monitoring; Rare species |
| Keywords Plus | PLANT ZONATION; OLIFANTS-ESTUARY; SOIL-SALINITY; SOUTH-AFRICA; VEGETATION; COMPETITION; GRADIENTS; DIVERSITY; ECOSYSTEM; MOISTURE |
| Abstract | The aim of this study was to explore how estuarine salt marsh macrophytes are distributed in relation to physicochemical variables. This information was examined to determine whether macrophyte species are associated with a specific range of physicochemical variables and so could be used as bioindicators. The distribution of eleven macrophyte species in fourteen estuaries across the South African temperate coast was assessed in relation to sediment (moisture content, organic content, electrical conductivity, pH and redox potential) and ground-water (electrical conductivity, salinity and depth of the groundwater) variables. A univariate and multivariate approach showed that common salt marsh species were poor bioindicators as they occurred over a broad range of values across the measured physicochemical variables (i.e. Bassin diffuse, Juncus kraussii, Sarcocornia pillansii, Sarcocornia tegetaria and Sporobolus virginicus). It is therefore suggested that rare species (Sarcocornia capensis, Frankenia pulverulenta, Poeciolepis ficoidea, S. decumbens, Plantago carnosa, Triglochin elongate, Spergularia media, Suaeda fruticosa and S. inflate) be studied further to establish relationships with physicochemical variables as these may be useful indicators to monitor responses to sea level and other environmental changes. This study provides useful data on the ecological requirements of species and habitats in response to diverse physiochemical conditions across various estuaries spanning a regional scale. (C) 2016 SAAB. Published by Elsevier B.V. All rights reserved. |
| Reprint Address | Adams, JB (reprint author), Nelson Mandela Metropolitan Univ, Dept Bot, POB 77000, ZA-6031 Port Elizabeth, South Africa. |
| E-mail Address | janine.adams@nmmu.ac.za |
| ORCID Number | Potts, Alastair John/0000-0003-0919-7279 |
| Funding Agency and Grant Number | National Research Foundation (NRF); NRF [RCA13091944022]; Applied Centre for Climate and Earth Systems Science (ACCESS) |
| Funding Text | The authors thank Chantel Bezuidenhout and Jadon Schmidt for the use of their datasets. A student scholarship was provided by the National Research Foundation (NRF) to the first author and the Applied Centre for Climate and Earth Systems Science (ACCESS) is thanked for funding this study. AJP was funded by the NRF (RCA13091944022). |
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| Cited Reference Count | 45 |
| Publisher | ELSEVIER SCIENCE BV |
| Publisher City | AMSTERDAM |
| Publisher Address | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| ISSN | 0254-6299 |
| 29-Character Source Abbreviation | S AFR J BOT |
| ISO Source Abbreviation | S. Afr. J. Bot. |
| Publication Date | NOV |
| Year Published | 2016 |
| Volume | 107 |
| Special Issue | SI |
| Beginning Page | 84 |
| Ending Page | 90 |
| Digital Object Identifier (DOI) | 10.1016/j.sajb.2016.08.008 |
| Page Count | 7 |
| Web of Science Category | Plant Sciences |
| Subject Category | Plant Sciences |
| Document Delivery Number | EE0TW |
| Unique Article Identifier | WOS:000389292800012 |
| Plants associated with this reference |