Institute of Biological Sciences Faculty of Science, Institute of Ocean and Earth Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia.
J Fish Biol. 2010 Nov;77(7):1645-64. doi: 10.1111/j.1095-8649.2010.02807.x. Epub 2010 Oct 28.
During several surveys made in the region of the lower Fly River and delta, Papua New Guinea, nine species of oxudercine gobies (Gobiidae: Oxudercinae) were recorded: Boleophthalmus caeruleomaculatus, Oxuderces wirzi, Periophthalmodon freycineti, Periophthalmus darwini, Periophthalmus novaeguineaensis, Periophthalmus takita, Periophthalmus weberi, Scartelaos histophorus and Zappa confluentus. An exploratory multivariate analysis of their habitat conditions discriminated five guilds, differentially distributed in habitats with different quantities of environmental water and three guilds corresponding to different levels of salinity. A partial correspondence between phylogenetic and ecological categories suggested the presence of parallel adaptive radiations within different genera. In particular, the species found in the most terrestrial habitats (P. weberi) was also found in the widest range of conditions, suggesting that colonization of extreme semi-terrestrial and freshwater habitats by this species was facilitated by eurytypy. It is proposed that these findings provide insight into convergent adaptations for the vertebrate eco-evolutionary transition from sea to land.
在对巴布亚新几内亚下弗莱河及其三角洲地区进行的几次调查中，记录了 9 种 Oxudercine 虾虎鱼（Gobiidae：Oxudercinae）：蓝点拟雀鲷、沃氏拟雀鲷、费氏拟雀鲷、达尔文雀鲷、新几内亚拟雀鲷、高体拟雀鲷、韦伯氏拟雀鲷、历史多须鲷和 Zappa 拟雀鲷。对其生境条件的探索性多元分析将它们分为五个 guild，在不同数量环境水的生境中呈现不同的分布，还有三个 guild 对应不同的盐度水平。系统发育和生态分类之间的部分对应表明，不同属内存在平行的适应性辐射。特别是，在最具陆地生境中发现的物种（P. weberi）也在最广泛的条件下被发现，这表明该物种对极端半陆生和淡水生境的殖民化是由广适性促成的。有人提出，这些发现为脊椎动物从海洋到陆地的生态进化过渡的趋同适应提供了新的见解。
