PROSPECTING IN THE KITTIWAKE, RISSA-TRIDACTYLA - DIFFERENT BEHAVIORAL-PATTERNS AND THE ROLE OF SQUATTING IN RECRUITMENT
PROSPECTING IN THE KITTIWAKE, RISSA-TRIDACTYLA - DIFFERENT BEHAVIORAL-PATTERNS AND THE ROLE OF SQUATTING IN RECRUITMENT
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DOI：
10.1006/anbe.1994.1116
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发表时间：
1994-04-01
期刊：
影响因子：
2.5
通讯作者：
DANCHIN, E
中科院分区：
文献类型：
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作者：
CADIOU, B;MONNAT, JY;DANCHIN, E
长寿的鸟类，如海鸟，在补充之前通常有一个繁殖前的勘探期。在三趾鸥中，有些鸟，称为擅自占巢鸟，占据无人看管的巢或与无人看管的雏鸟一起居住的巢。在这项研究中，栖息地主要涉及失败的繁殖者和预繁殖者，即寻找繁殖地的鸟类。探矿者按其登陆地点分为三类（擅自占用雏鸟、擅自占用鸟巢和只占用非繁殖地点的非擅自占用者）。雏鸟上的擅自占地者是最老的，非擅自占地者是最年轻的繁殖前探矿者。这些擅自占用小鸡的过程中涉及的地理稳定，定居，拨款和配对的形成，比其他prebreeding探矿者。非棚户区居民在殖民地的出勤率最低。他们不像擅自占地者那样被吸引到繁殖活动中。蹲在巢上的流浪者比其他繁殖前的勘探者更多，并参观了几个繁殖地。这三类探矿者反映了个体发育中招募的渐进阶段。在接下来的一年中，所招募的预育种者的各自比例证实了这些结果。更一般地说，在鸟类中进行勘探可以被解释为一种行为机制，在繁殖之前评估不同繁殖地的环境质量。
Long-lived birds, such as seabirds, generally have a prebreeding prospecting period before recruitment. In the kittiwake, some birds, called squatters, occupy unattended nests or nests with unattended chicks which are not their own. In this study squatting mainly involved failed breeders and prebreeders, i.e. birds looking for a breeding site. Three categories of prospectors were distinguished on the basis of the sites where they landed (squatters on chicks, squatters on nests and non-squatters which occupied non-breeding sites only). Squatters on chicks were the oldest and non-squatters the youngest prebreeding prospectors. These squatters on chicks were implicated in a process of geographical stabilization, settlement, appropriation and pair formation, more than other prebreeding prospectors. Non-squatters showed the lowest attendance at the colonies. They were not attracted to breeding activities as much as the squatters. Squatters on nests wandered more than other prebreeding prospectors and visited several breeding places. These three categories of prospectors reflected progressive stages in the ontogeny of recruitment. The respective proportions of prebreeders recruited in the following year confirmed these results. More generally, prospecting in birds can be interpreted as a behavioural mechanism to assess the environmental quality of different breeding places prior to breeding.