DEPTH UTILIZATION BY PENGUINS AND GENTOO PENGUIN DIVE PATTERNS

被引：22

作者：

WILSON, RP ^{[1
]}

CULIK, B ^{[1
]}

SPAIRANI, HJ ^{[1
]}

CORIA, NR ^{[1
]}

ADELUNG, D ^{[1
]}

机构：

[1] INST ANTARTICO ARGENTINO,BUENOS AIRES,ARGENTINA

来源：

JOURNAL FUR ORNITHOLOGIE | 1991年 / 132卷 / 01期

关键词：

D O I：

10.1007/BF01640525

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Time-at-depth data, recorded by animal-attached miniature depth gauges, were examined in 8 Gentoo Penguins. Birds showed two depth utiliuation patterns, (1) decreasing time with increasing depth, which we interpret as due to "bounce-diving" in the pelagic zone and (2) constant time per depth interval down to specific depths where large time peaks were encountered. We interprete this as "flat-bottomed" diving in benthic-foraging birds. Multiple maximum depth data reported in the literature for various penguin species were analysed to try and reconstruct proportional time-at-depth. These results, together with real time-at-depth data, indicated that penguin depth utilization was strongly mass dependent with larger species spending a greater proportion of time in deeper water.

引用

页码：47 / 60

页数：14

共 33 条

[1] FORAGING PARAMETERS OF GENTOO PENGUINS PYGOSCELIS-PAPUA AT MARION-ISLAND [J].