Low Dietary Importance of Polychaetes in Opportunistic Feeding Sanderlings<i>Calidris alba</i>on Belgian Beaches

Vanermen, Nicolas; Stienen, Eric; Meulenaer, Brecht De; Ginderdeuren, K. Van; Degraer, S.

doi:10.5253/078.097.0110

Cited by 10 publications

(12 citation statements)

References 23 publications

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“…Two wader species, C. alba and C. alpina, feed predominantly on macrobenthos along Belgian beaches. Despite some differences in foraging behaviour, both species were found to forage about 25% of their total residential time within one tidal cycle on all macrobenthos species (Beyst, Cattrijsse & Mees 1999;Speybroeck et al 2006a;Vanermen et al 2009). They are therefore treated as one functional group.…”

Section: Wading Birdsmentioning

confidence: 96%

“…They are therefore treated as one functional group. According to Vanermen et al (2009), waders along soft sandy beaches only forage from 2 h before to 4 h after low tide. This implies that foraging is not possible at the higher intertidal zone.…”

Section: Wading Birdsmentioning

confidence: 99%

“…Microphytobenthos and macrobenthos species composition are well documented along the Belgian coast, and the importance of macrobenthos as food for birds and fish has also been illustrated and quantified (Beyst, Cattrijsse & Mees ; Vanermen et al . ). As clarified further, we assume the absence of dispersal limitation for macrobenthos.…”

Section: Introductionmentioning

confidence: 97%

“…The model builds further on the well-established insight that the realized niche of lower trophic levels can be predicted based on three beach parameters, that is elevation, median grain size and total organic matter, which are correlated under equilibrium conditions (Degraer, Volckaert & Vincx 2003;Speybroeck et al 2006a). Microphytobenthos and macrobenthos species composition are well documented along the Belgian coast, and the importance of macrobenthos as food for birds and fish has also been illustrated and quantified (Beyst, Cattrijsse & Mees 1999;Vanermen et al 2009). As clarified further, we assume the absence of dispersal limitation for macrobenthos.…”

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confidence: 99%

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Assessing the impact of beach nourishment on the intertidal food web through the development of a mechanistic‐envelope model

Eede

Tomme

Busschere

et al. 2014

Journal of Applied Ecology

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Summary1. 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.

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Section: Wading Birdsmentioning

confidence: 96%

Section: Wading Birdsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

mentioning

confidence: 99%

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Assessing the impact of beach nourishment on the intertidal food web through the development of a mechanistic‐envelope model

Eede

Tomme

Busschere

et al. 2014

Journal of Applied Ecology

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“…Sanderling aquatic invertebrate food sources can bioaccumulate tPAH concentrations of more than 6000 μg/kg after an oil spill (Allan et al 2012). Therefore, our dose concentrations represented a dietary exposure range of 0 to 6000 μg PAH/kg food/day with an ingestion rate of 12.6 g/day (the fuel ingestion rate of Sanderling during staging; Vanermen et al 2009). Due to a storage issue, we were unable to analytically verify the target concentrations of our dose solutions.…”

Section: Pah Mixturesmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons Alter the Hepatic Expression of Genes Involved in Sanderling (Calidris alba) Pre‐migratory Fueling

Bianchini

Crump

Farhat

et al. 2021

Enviro Toxic and Chemistry

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Polycyclic aromatic hydrocarbons (PAHs) impaired pre-migratory fueling in 49 orally dosed Sanderling (Calidris alba). In the present study, 8 genes related to fat deposition and PAH exposure were measured in liver subsamples from these same shorebirds. At the highest dose (1260 µg total PAH [tPAH]/kg body wt/day), PAH exposure decreased liver basic fatty acid binding protein 1 (Lbfabp) and hepatic lipase (Lipc) expression. The present study reveals candidate molecularlevel pathways for observed avian pre-migratory refueling impairment.

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Anthropogenic impact on macrobenthic communities and consequences for shorebirds in Northern France: A complex response

Rolet

Spilmont

Davoult

et al. 2015

Biological Conservation

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Low Dietary Importance of Polychaetes in Opportunistic Feeding SanderlingsCalidris albaon Belgian Beaches

Cited by 10 publications

References 23 publications

Assessing the impact of beach nourishment on the intertidal food web through the development of a mechanistic‐envelope model

Assessing the impact of beach nourishment on the intertidal food web through the development of a mechanistic‐envelope model

Polycyclic Aromatic Hydrocarbons Alter the Hepatic Expression of Genes Involved in Sanderling (Calidris alba) Pre‐migratory Fueling

Anthropogenic impact on macrobenthic communities and consequences for shorebirds in Northern France: A complex response

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