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- aggregation classification "A1".
- aggregation creator B944960.
- aggregation creator B944961.
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- aggregation date "2014".
- aggregation format "application/pdf".
- aggregation hasFormat 5718551.bibtex.
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- aggregation isPartOf urn:issn:0021-8901.
- aggregation language "eng".
- aggregation rights "I have retained and own the full copyright for this publication".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "Assessing the impact of beach nourishment on the intertidal food web through the development of a mechanistic-envelope model".
- aggregation abstract "1. Beach nourishment, the placement of sand onto a sediment-starved stretch of coast, is widely applied as a soft coastal protection measure because of its reduced ecological impact relative to hard coastal protection. In order to predict effects on the intertidal sandy beach ecosystem, we developed a simulation model that integrates species envelope-based projections for the dominant macrobenthos species and mechanistic food web modules for higher trophic levels. 2. Species envelopes were estimated by using Bayesian inference of species’ biomass relationships according to the three determining abiotic variables: intertidal elevation, median grain size and total organic matter, obtained from multiple sampling campaigns along the Belgian coast. Maximum potential abundance of higher trophic levels represented by birds, shrimp and flatfish were estimated based on their derived trophic relationship with macrobenthos. 3. After validation, we demonstrated that unlike nourishment slope, sediment grain size strongly determines beach-level species richness and production, with strong deterioration in species richness after nourishment with coarse sediment (>300 lm). Patterns for higher trophic levels do not follow the changes in macrobenthos abundance and biomass. 4. Synthesis and applications. The optimal grain size range for nourishment of fine-grained beaches is 200–300 lm. This modelling approach shows that the impact assessment of beach nourishment needs to include the evaluation of different species richness and biomass variables. Focusing solely on the potential abundance of species from higher trophic levels might lead to deceptive conclusions due to the dominance of opportunistic prey species.".
- aggregation authorList BK1333588.
- aggregation endPage "1313".
- aggregation issue "5".
- aggregation startPage "1304".
- aggregation volume "51".
- aggregation aggregates 5718564.
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