Common aquatic invertebrate taxa vary in susceptibility to capture by Black Stilt chicks | Notornis and Birds New Zealand

[摘要] I tested the ability of captive Black Stilt chicks (Himantopus novaezelandiae) to capture and consume common aquatic invertebrates. Waterboatmen (Sigara sp.), segmented worms (Oligochaeta), and larvae of a damselfly (Xanthocnemis zealandica), midge (Chironomus zealandicus), mayfly (Deleatidium spp.), and caddisfly (Aoteapsyche colonica) were captured and consumed quickly and easily by chicks of all ages (2 - 30 days). They were also consumed in the greatest numbers. In contrast, two aquatic snails (Physa acuta and Lymnaea tomentosa) and larvae of two cased caddisflies (Triplectides sp. and Hudsonema amabilis) were captured and consumed with difficulty and in low numbers by young chicks (

[学科分类] 动物科学

[关键词] Black Stilt;Himantopus novaezelandiae;prey capture;Upper Waitaki basin