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How the food supply harvestable by waders in the Wadden Sea depends on the variation in energy density, body weight, biomass, burying depth and behaviour of tidal-flat invertebrates
Abstract For several reasons, waders in the Wadden Sea face a large seasonal and annual variation in their food supply. Observations on a tidal flat in the Dutch Wadden Sea have shown that: 1. - (1)Expand
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Siphon size and burying depth in deposit- and suspension-feeding benthic bivalves
This paper analyses the significance of siphon investment in the life strategy of benthic bivalves. It describes the relationships between siphon weight, burying depth and shell size in Mya arenaria,Expand
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Seasonal variation in body weight of the bivalves Macoma balthica, Scrobicularia plana, Mya arenaria and Cerastoderman edule in the Dutch Wadden sea
Abstract The paper deals with the seasonal and annual variations in the weight of the soft parts of four bivalve species, Macoma balthica, Scrobicularia plana, Mya arenaria and Cerastoderma eduleExpand
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Why knot Calidris canutus take medium-sized Macoma balthica when six prey species are available
We quantified the prey selection and intake rate of a wading bird, knot Calidris canutus, when 6 different, intertidal prey species, the mud snail Peringia ulvae and the bivalves Macoma balthica,Expand
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Seasonal trend in burrow depth and tidal variation in feeding activity of Nereis diversicolor
Ragworms Nereis diversicolor live in burrows which, if deeper than 5 to 10 cm, offer a safe refuge from most of their predators. Burrow depth must be ca 15 cm before they live out of reach of allExpand
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Moult, Mass and Flight Range of Waders Ready to Take Off for Long-Distance Migrations
ABSTRACT Wader species wintering on the Banc d'Arguin increased their body mass by about 40% during the 4–6 weeks before their departure in spring. This estimate is based on 1) the empirical factExpand
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Fatty acid content of New Zealand-grown walnuts (Juglans regia L.).
Walnut (Juglans regia L.) samples were collected during the 1994 and 1995 harvest from ten different cultivars of trees grown in a replicated trial in an experimental orchard at Lincoln University,Expand
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Behavioural aspects of the departure of waders before long-distance flights flocking vocalizations flight paths and diurnal timing
The departure behaviour of waders was studied on the Bane d'Arguin in Mauritania in spring, and in The Netherlands in both spring and autumn. Most flocks consisted of 10-60 individuals, with theExpand
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