Herbivory on macro-algae affects colonization of beach-cast algal wrack by detritivores but not its decomposition
| Autor: | Martin Zimmer, Lena Hübner, Gesa Schaefer, Philip Eereveld |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Herbivore
Atmospheric Science biology Ecology Detritivore Fucus vesiculosus Ocean Engineering Trophic link Aquatic Science biology.organism_classification Oceanography Wrack Food web Brown algae lcsh:Oceanography Spatial subsidy Algae Botany Marine-terrestrial ecotone Ecosystem lcsh:GC1-1581 Macro-algal wrack Induced anti-herbivore defence |
| Zdroj: | Oceanologia, Vol 55, Iss 2, Pp 339-358 (2013) |
| ISSN: | 0078-3234 |
| DOI: | 10.5697/oc.55-2.339 |
| Popis: | Spatial subsidies have increasingly been considered significant sources of matter and energy to unproductive ecosystems. However, subsidy quality may both differ between subsidizing sources and vary over time. In our studies, sub-littoral herbivory by snails or isopods on red or brown macro-algae induced changes in algal tissues that affected colonization of beach-cast algal wrack by supra-littoral detritivores (amphipods). However, microbial decay and decomposition through the joint action of detritivores and microbes of algal wrack in the supra-littoral remained unaffected by whether or not red or brown algae had been fed upon by snails or isopods. Thus, herbivory on marine macro-algae affects the cross-system connection of sub-littoral and supra-littoral food webs transiently, but these effects diminish upon ageing of macro-algal wrack in the supra-littoral zone. |
| Databáze: | OpenAIRE |
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