Impacts of dugong foraging on seagrass habitats: observational and experimental evidence for cultivation grazing

Impacts of dugong foraging on seagrass habitats: observational and experimental evidence for cultivation grazing

In Moreton Bay, Australia, dugongs (Dugong dugon) often graze in large herds at the same location for weeks to months. Such grazing reduced seagrass shoot density by 65 to 95%, aboveground biomass by 73 to 96% and belowground biomass by 31 to 71 % at 3 sites ranging in size from 2 to 75 ha. Followin...

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Veröffentlicht in:Marine ecology. Progress series (Halstenbek) 1995, Vol.124 (1/3), p.201-213
1. Verfasser: Preen, Anthony
Format: Artikel
Sprache:eng
Schlagworte:
Aboveground biomass
Belowground biomass
Biomass
Density
Dugong dugon
Dugongs
Grazing
Halophila ovalis
Herbivores
Marine
Meadows
Nitrogen
Sea grasses
Zostera capricorni
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Zusammenfassung:In Moreton Bay, Australia, dugongs (Dugong dugon) often graze in large herds at the same location for weeks to months. Such grazing reduced seagrass shoot density by 65 to 95%, aboveground biomass by 73 to 96% and belowground biomass by 31 to 71 % at 3 sites ranging in size from 2 to 75 ha. Following even the most intense and sustained grazing, the space between surviving tufts of seagrass remains small (
ISSN:0171-8630
1616-1599
DOI:10.3354/meps124201