thumbnail

The interactive effects of herbivory and fire on an oligohaline marsh, Little Lake, Louisiana, USA

Wetlands

None
By:
, , ,
DOI: 10.1007/BF03160624

Links

Abstract

Herbivory and fire have been shown to affect the structure and composition of marsh communities. Because fire may alter plant species composition and cover, and these alterations may have an effect on this study, the effects of fire and vertebrate herbivory in a Louisiana oligohaline marsh were studied using small, controlled burns and animal enclosures. Mean total biomass was nearly 2 times greater in the plots protected from herbivory than in the plots subject to natural herbivory. Additionally, mean total biomass was over 1.5 times greater in the plots that remained unburned than in those that were burned. Two dominant perennial species, Spartina patens and Scirpus olneyi, were negatively affected by herbivory, but two annual sedges, Cyperus flavescens and Cyperus odorata, were positively affected. Burning reduced the aboveground biomass of Spartina patens and Bacopa monnieri. No species increased in biomass as a result of fire. No significant differences were found in species richness between herbivory treatments or between fire treatments. Although both herbivory and fire were found to cause significant changes in the vegetation, the interaction between herbivory and fire was not found to produce any significant effects in any test conducted.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The interactive effects of herbivory and fire on an oligohaline marsh, Little Lake, Louisiana, USA
Series title:
Wetlands
DOI:
10.1007/BF03160624
Volume
14
Issue:
2
Year Published:
1994
Language:
English
Publisher:
Springer
Publisher location:
Amsterdam, Netherlands
Contributing office(s):
National Wetlands Research Center
Description:
6 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Wetlands
First page:
82
Last page:
87
Number of Pages:
6