Maximum Load-Carrying During Takeoff of Leach's Storm-Petrel Oceanodroma leucorhoa and Cassin's Auklet Ptychoramphus aleuticus
Maximum Load-Carrying During Takeoff of Leach's Storm-Petrel Oceanodroma leucorhoa and Cassin's Auklet Ptychoramphus aleuticus
复制标题
利奇风暴海燕和卡辛海雀 Ptychoramphus aleuticus 起飞时的最大承载能力
DOI：
10.1675/063.034.0113
复制
发表时间：
2011
影响因子：
2.7
通讯作者：
M. Renner
中科院分区：
文献类型：
--
作者：
V. M. Ortega;S. Álvarez;Sarahi Arriaga;E. Bridge;M. Renner
抽象的。鸟类在海上增加体重的结果是食物的消耗和羽毛的润湿性。然而，关于最大额外载荷对水鸟起飞的影响却知之甚少。在起飞过程中的最大载荷升力的实验评估进行了翼推进潜水员与高翼载荷，卡辛的Auklet Ptychoramphus aleuticus，和表面馈线与低翼载荷，利奇的风暴海燕Oceanodroma leucorhoa。利奇的风暴海燕支持其身体质量的45%的最大额外负荷，而卡森的海雀是25%。最大负荷与食物运输和羽毛润湿性的关系表明，风暴海燕和alcid在起飞过程中分别保持31%和8%的最大支持额外负荷的安全负荷裕度。负载裕度表明风暴海燕的飞行性能增强，觅食时增加特定的升力，同时，海雀允许潜水时减少特定的浮力。
Abstract. Birds at-sea increase body mass as a consequence of food consumption and plumage wettability. However, little is known about the effect of maximum extra load on takeoff of aquatic birds. Experimental evaluation of maximum load-lift during takeoff was performed on a wing-propelled diver with high wing loading, Cassin's Auklet Ptychoramphus aleuticus, and on a surface feeder with low wing loading, Leach's Storm-Petrel Oceanodroma leucorhoa. Leach's Storm-Petrel supported a maximum extra load of 45% of its body mass, and that of Cassin's Auklet was 25%. The relation of maximal load to food transport and plumage wettability indicates that the storm-petrel and the alcid maintain safety load margins of 31% and 8% of the maximum supported extra load during takeoff, respectively. Load margin showed by storm-petrels suggests an enhanced flight performance, increasing specific lift during foraging; meanwhile that of auklets allows for reduction of specific buoyancy during diving.