Biogeography of Indo-Pacific Pontoniinae (Crustacea, Decapoda): a PAE analysis
Biogeography of Indo-Pacific Pontoniinae (Crustacea, Decapoda): a PAE analysis
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DOI：
10.1046/j.1365-2699.2001.00633.x
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发表时间：
2001-10-01
影响因子：
3.9
通讯作者：
De Grave, S
中科院分区：
文献类型：
--
作者：
De Grave, S
目的海虾科是印度洋-太平洋地区最丰富的珊瑚礁相关类群之一。虽然在分类学上是众所周知的，但它们的生态学、生活史和地理学似乎几乎没有研究。本贡献的目的是得到一个流域范围的地理假说，使用有限数量的业务地理单位（OGU）。位置12 OGU的选择，跨越整个印度-太平洋，从非洲东海岸和红海的热带东太平洋（TEP）。方法分析是基于一个物种的OGU矩阵，其中存在（1）和假定的发生（？）都是加密的使用Dollo和瓦格纳Parsimony对数据集进行了地方性简约分析（CAE）。结果得出了地区关系的等级模式，TEP占据基础位置，夏威夷和法属波利尼西亚在分支图中占据较高位置，而美拉尼西亚OGU与冠状分支保持姐妹地区关系。主要结论Pontoniinae具有明显的区域关系等级模式，这与前人对珊瑚礁和其他类群的地理学研究相一致。所观察到的模式可以解释的扩散和vicariant事件的组合，而海平面变化的重要性是公认的。
Aim Pontoniid shrimps are one of the most abundant coral reef associated taxa in the Indo-Pacific. Although taxonomically well known, their ecology, life history and biogeography appears virtually unstudied. The object of the present contribution is to derive a basin wide biogeographical hypothesis, using a limited number of operational geographic units (OGU).Location Twelve OGU's were selected, spanning the entire Indo-Pacific, from the East coast of Africa and the Red Sea to the Tropical Eastern Pacific (TEP).Methods Analysis was based on a species by OGU matrix, in which presences (1) and putative occurrences (?) were coded. Parsimony analysis of endemicity (PAE) was applied to the data set, using Dollo and Wagner Parsimony.Results A hierarchical pattern of area relationships was derived, with the TEP occupying a basal position, Hawaii and French Polynesia occupy positions higher up in the cladogram, whilst the Melanesian OGU maintains a sister-area relationship to the crown clade. The latter consists of the Indo-Philippine area, the Australian and all Indian Ocean OGUs.Main conclusions Pontoniinae exhibit a clear hierarchical pattern of area relationships, which is congruent with previous biogeographical studies on coral reef and other taxa. The observed pattern can be explained by a combination of dispersal and vicariant events, whilst the importance of sea level changes is recognized.