Predicting patterns of prey use from morphology of fishes
Predicting patterns of prey use from morphology of fishes
复制标题
从鱼类形态预测猎物使用模式
DOI：
10.1007/bf00005909
复制
发表时间：
1995
影响因子：
1.4
通讯作者：
Barton A. Richard
中科院分区：
文献类型：
--
作者：
P. Wainwright;Barton A. Richard
SynopsisEcomorphological分析，搜索形态和猎物使用数据集之间的关联模式，将有更大的机会了解形式和饮食之间的因果关系，如果使用的形态变量有已知的后果喂养性能。我们探讨鱼的身体大小，张口和下巴杠杆力学预测模式的猎物使用在两个非常不同的社区的鱼类，加勒比珊瑚礁鱼类，和物种的Centrarchidae，生活在湖Opinicon，安大略。尽管在光谱的潜在猎物的主要差异，Opinicon湖的centralarchids显示饮食过渡个体发育过程中，非常相似的加勒比石斑鱼（Serranidae）之间和物种内看到的。从小型浮游动物过渡到中型无脊椎动物，并最终鱼类似乎是非常普遍的公羊吸食鱼类，可能主要是由嘴的大小对猎物捕获能力的限制。用于嘴巴张开和闭合的颚杆系统代表了颚运动的速度和力的直接权衡。在蓝鳃鱼个体发育过程中，开口系统中的内杠杆与外杠杆的比例发生了变化，表明颌骨运动的力学和运动学也可能发生变化。在34种加勒比海珊瑚礁鱼类，咬物种的下巴关闭比率，有利于力的翻译，而采用快速罢工冲压吸的物种关闭比率，提高速度的关闭和开口的比率，有利于更迅速的扩展口在罢工期间。我们建议，当猎物被归类为功能组，反映了特定的性能特征，是重要的捕获和处理它们，并考虑到栖息地之间的差异，在可用的猎物资源，一般模式可以发现在形态-饮食关系，跨越系统发育的边界。
SynopsisEcomorphological analyses that search for patterns of association between morphological and prey-use data sets will have a greater chance of understanding the causal relationships between form and diet if the morphological variables used have known consequences for feeding performance. We explore the utility of fish body size, mouth gape and jaw-lever mechanics in predicting patterns of prey use in two very different communities of fishes, Caribbean coral reef fishes, and species of the Centrarchidae that live in Lake Opinicon, Ontario. In spite of major differences in the spectrum of potential prey available, the centrarchids of Lake Opinicon show dietary transitions during ontogeny that are very similar to those seen among and within species of Caribbean groupers (Serranidae). The transition from small zooplankton to intermediate sized invertebrates and ultimately to fishes appears to be very general in ram-suction feeding fishes and is probably driven largely by the constraints of mouth size on prey capture ability. The jaw-lever systems for mouth opening and closing represent direct trade-offs for speed and force of jaw movement. The ratio of in-lever to out-lever in the opening system changes during ontogeny in bluegill, indicating that the mechanics and kinematics of jaw movement may change as well. Among 34 species of Caribbean reef fishes, biting species had jaw-closing ratios that favored force translation, while species that employ rapid-strike ram-suction had closing ratios that enhanced speed of closing and mouth opening ratios that favored a more rapid expansion of the mouth during the strike. We suggest that when prey are categorized into functional groups, reflecting the specific performance features that are important in capturing and handling them, and the differences among habitats in the available prey resource are taken into account, general patterns can be found in morphology-diet relations that cross phylogenetic boundaries.