Patterns of agonistic behaviour, shelter occupation and habitat preference in juvenile Lipophrys pholis, Coryphoblennius galerita and Gobius cobitis
Patterns of agonistic behaviour, shelter occupation and habitat preference in juvenile Lipophrys pholis, Coryphoblennius galerita and Gobius cobitis
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幼鱼 Lipophrys pholis、Coryphoblennius galerita 和 Gobius cobitis 的竞争行为模式、栖息地占用和栖息地偏好
DOI：
10.1111/j.1095-8649.1998.tb00247.x
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
M. Nunes
中科院分区：
文献类型：
--
作者：
C. Faria;V. Almada;M. Nunes
本文研究了笼养条件下三种虾虎鱼（科）、大眼（科）和眼镜蛇（Gobius cobitis）幼鱼的竞争行为和对底质的选择。在单种群体中，大小是每个个体所获得排名的良好预测因素。在异源类群中，C. galerita和L. pholis对G. cobitis和C. galerita dominated L. pholis。尽管G. cobitis表现出更高的活动率和每分钟的攻击率，以及更高的攻击比威胁的比率，所有这些措施都在任一blenniid的存在下被抑制。在这两个blennies，在单种组，每种鱼的优势排名是一个很好的预测庇护所内所花费的时间。G.无论是单种还是异种，cobitis都优先占据桑迪基质。这两种燕鸥，当在单种群体，优先占领的岩石基层，与C。galerita显示出最高水平的选择性。在自然界中，C. galerita也表现出明显的偏好岩石基质，而G。在混合底栖动物中，眼镜蛇特别多。L. pholis占据了一个中间位置。在所研究的blenniids，获得住房的竞争可能是一个主要的功能后果的竞争行为在非生殖环境。
The patterns of agonistic behaviour and substratum preferences were investigated in captive groups of juveniles of Lipophrys pholis (Blenniidae), Coryphoblennius galerita (Blenniidae) and Gobius cobitis (Gobiidae). In monospecific groups, size was an excellent predictor of the rank attained by each individual. In heterospecific groups, both C. galerita and L. pholis were dominant over G. cobitis of similar size, and C. galerita dominated L. pholis. Although G. cobitis showed higher rates of activity and of attacks per minute, and a higher ratio of attacks over threats, all these measures were depressed in the presence of either blenniid. In both blennies, in monospecific groups, the dominance rank of each fish was a good predictor of the time spent inside shelters. G. cobitis occupied preferentially the sandy substratum both in mono- and heterospecific groups. Both blennies, when in monospecific groups, occupied preferentially the rocky substratum, with C. galerita showing the highest level of selectivity. In nature, C. galerita also showed a marked preference for rocky substrata, while G. cobitis was especially abundant in mixed bottoms. L. pholis occupied an intermediate position. In the blenniids studied, competition for access to shelter may be one major functional consequence of agonistic behaviour in non-reproductive contexts.
