定義： directly or indirectly modulating the availability of resources to other species, by causing physical state changes in biotic or abiotic materials; modifying, maintaining and/or creating habitats
定義： Ventilation occurs when animals flush their burrows with overlying water for respiratory and feeding purposes. Blind-ended ventilation occurs when I-shaped burrows are flushed uni- or bidirectionally depending on the permeability of the sediment
定義： directly or indirectly modulating the availability of resources to other species, by causing physical state changes in biotic or abiotic materials; modifying, maintaining and/or creating habitats
定義： Ventilation occurs when animals flush their burrows with overlying water for respiratory and feeding purposes. Blind-ended ventilation occurs when I-shaped burrows are flushed uni- or bidirectionally depending on the permeability of the sediment
