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A Song of the south: evidence of inter-decadal limit-cycles within a seagrass landscape, driven by a higher octave nutrient consonance. A paleo-reconstruction
conference contribution
posted on 2023-05-23, 14:25 authored by John Barry GallagherJohn Barry GallagherSeagrasses provide a high ecosystem service across the globe but appear to be in decline. In response to this concern, and as “time has and will always tell”, a late Anthropocene paleo-reconstruction of a seagrass ecosystem was used to develop a theory of seagrass inter-decadal variance. It was found that temporal ecosystem patterns, with prior knowledge constraints, could be explained from hypotheses taken from a constructed ideal temporal model of seagrass landscape configuration and coverage. The expression of 3-D inter-decadal limit cycle was apparent, as a planktivore trophic cascade with an inverse seagrass/micro-algal couple and nutrient availability, at twice the frequency of the biome. The cycle appeared to be born from the intrinsic asymmetry between seagrass landscape edge length and coverage. A mechanism was proposed, based on the temporal narrative, that incorporated seagrass light and nutrient limitation symmetry across ecosystem states, parameter changes in nutrient forcing and biome feedbacks.
History
Publication title
Landscape Ecology and Ecosystem Service conference bookEditors
C Young, L Besenyei, I Hooper and K Moreton-JonesPagination
193-197ISBN
0954713079Department/School
Institute for Marine and Antarctic StudiesPublisher
IALE UK International Association for Landscape EcologyPlace of publication
University of WolverhamptonEvent title
Landscape Ecology and Ecosystem ServiceDate of Event (Start Date)
2011-01-01Date of Event (End Date)
2011-01-01Rights statement
Copyright unknownRepository Status
- Restricted