Feeding Behavior of Free‐Ranging King Penguins (Aptenodytes Patagonicus)
Feeding Behavior of Free‐Ranging King Penguins (Aptenodytes Patagonicus)
复制标题
自由放养王企鹅 (Aptenodytes Patagonicus) 的摄食行为
DOI：
--
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
C. Bost
中科院分区：
文献类型：
--
作者：
K. Pütz;C. Bost
1991年10月至11月，在克罗泽群岛的拥有岛(46°25‘S，51°45’E)，对自由生活的王企鹅(Aptenodytes Patagicus)的觅食生态进行了研究。用胃温传感器检测摄食，根据体温下降来记录摄食活动。企鹅主要以食蟹鱼为食。共记录了16只海鸟146d的胃温，125d期间共记录到16474次摄食事件，平均每天132次。在这里，计算的食物摄入量平均为2320g/d(范围11-12889 g)，其中80%(范围71-95%)的猎物是在白天捕获的。在剩下的21天里，胃温降到了20°C的检测下限以下，这使得摄取事件的数量无法确定，摄入量的确定也不准确。我们认为，国王企鹅快速摄取和消化大量食物存在选择压力，因为这些鸟类在陆地上交替禁食，在此期间它们照顾它们的幼崽，在此期间它们必须以零星分布的猎物为食。
The foraging ecology of free—living King Penguins (Aptenodytes patagonicus) was studied during October and November 1991 on Possession Island (46°25' S, 51°45'E), Crozet Archipelago. Feeding was detected with stomach temperature sensors, which logged feeding activity as indicated by temperature drops. The penguins fed mainly on myctophid fish. Stomach temperature of 16 birds at sea was recorded for a total of 146 d. During 125 d a total of 16 474 food ingestion events was recorded, a mean of 132 events per day. Here, calculated food intake averaged 2320 g/d (range 11—12 889 g) with >80% (range 71—95%) of prey caught during daylight. During the remaining 21 d stomach temperature dropped below the detection limit of 20°C, which made determination of the number of ingestion events impossible and mass ingested determination inaccurate. We propose that there is selection pressure for King Penguins to ingest and digest large quantities of food quickly because these birds alternate fasting periods on land, during which time they care for their chicks, with foraging trips, during which time they must feed on patchily distributed prey.
帝企鹅在海冰下潜水的心率和游泳速度。
DOI：
10.1242/jeb.165.1.161
发表时间：
1992
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Kooyman,GL;Ponganis,PJ;Castellini,MA;Ponganis,EP;Ponganis,KV;Thorson,PH;Eckert,SA;LeMaho,Y
通讯作者：
LeMaho,Y