Cannibalistic Behavior of Octopus (Octopus vulgaris) in the Wild

被引：23

作者：

Hernandez-Urcera, Jorge ^{[1
]}

Garci, Manuel E. ^{[1
]}

Roura, Alvaro ^{[1
]}

Gonzalez, Angel F. ^{[1
]}

Cabanellas-Reboredo, Miguel ^{[2
,3
]}

Morales-Nin, Beatriz ^{[2
,3
]}

Guerra, Angel ^{[1
]}

机构：

[1] Spanish Natl Res Council, Inst Marine Res, Vigo, Spain

[2] Mediterranean Inst Adv Studies, Palma De Mallorca, Spain

[3] Spanish Natl Res Council, Vigo, Spain

来源：

JOURNAL OF COMPARATIVE PSYCHOLOGY | 2014年 / 128卷 / 04期

关键词：

cannibalism; behavior; Octopus vulgaris; cephalopods; DOFLEINI WULKER; LIFE-HISTORY; SOUTH-AFRICA; CEPHALOPODA; GROWTH; MOLLUSCA; REPRODUCTION; DYNAMICS; PATTERNS; ROBSON;

D O I：

10.1037/a0036883

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

The first description of cannibalism in wild adult Octopus vulgaris is presented from 3 observations made in the Ria de Vigo (NW Spain), which were filmed by scuba divers. These records document common traits in cannibalistic behavior: (a) it was intercohort cannibalism; (b) attacks were made by both males and females; (c) in 2 of the records, the prey were transported to the den, which was covered with stones of different sizes; (d) the predator started to eat the tip of the arms of its prey; (e) predation on conspecifics occurred even if there were other abundant prey available (i.e., mussels); and (f) the prey/predator weight ratio in the 3 cases ranged from 20% to 25% body weight. The relationships between this behavior and sex, defense of territory, energy balance, food shortage, competition and predation, as well as how the attacker kills its victim are discussed.

引用

页码：427 / 430

页数：4

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