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Polycirrus tesselatus Hutchings & Glasby 1986

ecosystem engineering

Queirós et al 2013
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URI：http://polytraits.lifewatchgreece.eu/terms/RW_DC

定義： Downward conveyors exhibit a feeding strategy opposite to that of upward conveyors. Vertically oriented head-up feeders actively select and ingest particles at the surface and egest these non-locally as faeces in deeper sediment strata

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