Nom du corpus

Corpus Systématique Végétale

Titre du document

Species association changes across a gradient of freshwater, oligohaline, and mesohaline tidal marshes along the lower Savannah River

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • tidal marsh
  • plant distributions
  • resource overlap
  • environmental gradient
  • ordination
Nom du fichier dans la ressource
Syst_veg6_v2_023959
Auteur(s)
  • Pamela J. Latham 1
  • Leonard G. Pearlstine 1
  • Wiley M. Kitchens 1
Affiliation(s)
  • 1) Florida Cooperative Fish and Wildlife Research Unit, University of Florida, 32611, Gainesville, FL
Résumé

In the present study, plant species patterns and associated environmental factors of freshwater, oligohaline, and meschaline marshes of the Savannah National Wildlife Refuge were compared. DECORANA, an ordination method, was used to group vegetation classes. Discriminant function analysis was applied to resulting classes to quantify differences in salinity, elevation, and distance from tidal channels among classes. Nine vegetation classes across freshwater and brackish marshes corresponded significantly to salinity differences between sites. Combinations of elevation and distance from tidal channel were significant in separating vegetation classes within sites.Scirpus validus (Vahl) was the only species to occur over the entire range of measured physical parameters and accounted for much of the overlap between vegetation classes. The proportion of correctly classified vegetation classes between sites was 70%. Within each site, the proportion of correct classification was lower in the freshwater marsh (77% correct classifications) when compared with the oligohaline (82%), strongly oligohaline (83%), and mesohaline (85%) sites. Although overlap among classes was greater in the more diverse freshwater marsh, our results may reflect differences in the steepness of environmental gradients between sites and the scale at which physical parameters were measured rather than actual plant distribution overlap. Results suggest that resources are more finely divided among species in the freshwater marsh, resulting in a less distinct dominance hierarchy when compared with the mesohaline marsh.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ecologie animale, vegetale et microbienne
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
Catégories WoS
  • 1 - science ; 2 - environmental sciences
  • 1 - science ; 2 - ecology
Identifiant ISTEX
B1A3E051809F92EF31CD98D7EABE4EFA531BE287
Revue

Wetlands

Année de publication
1994
Présence de XML structuré
Non
Score qualité du texte
9.664
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-07XG20HQ-7
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