Winston M L, Jacobson S
Anim Behav. 1978 Feb;26(1):184-91. doi: 10.1016/0003-3472(78)90018-0.
Dominance orders in the hermit crab Pagurus longicarpus were observed in the laboratory. Groups of four crabs formed loose dominance hierarchies as determined by repeated display and retreat behaviour. Stronger dominance orders were inversely correlated with the frequency of aggressive interactions. Recognition of individuals, as measured by frequency and intensity of aggressive encounters between familiar crabs and introduced strangers, was not important in maintaining dominance orders. Rather, P. longicarpus recognized the aggressive state of conspecifics, as shown by frequencies of aggressive encounters after individuals of different dominance rankings were exchanged between established hierarchies.
在实验室中观察了长腕寄居蟹Pagurus longicarpus的优势等级。由四只螃蟹组成的群体形成了松散的优势等级制度，这是通过反复的展示和撤退行为确定的。更强的优势等级与攻击性行为的频率呈负相关。通过熟悉的螃蟹与引入的陌生螃蟹之间攻击相遇的频率和强度来衡量的个体识别，在维持优势等级方面并不重要。相反，长腕寄居蟹识别同种个体的攻击状态，这表现为在既定等级制度中交换不同优势排名的个体后攻击相遇的频率。
