Abiotic factors that prompt major ecological transitions: are fish on land to escape an intolerable aquatic environment?

Colonisation of novel habitats are important event in evolution, but the factors that initially prompt such ecological transitions are often unknown. The invasion of land by fish is an extreme habitat transition that offers an opportunity to empirically investigate the causes of major ecological transitions. The intertidal ecotone—and rockpools in particular—have been an important staging ground for transitions onto land. Classic hypotheses focus on the adverse abiotic conditions of rockpools at low tide as the instigator of fish voluntarily stranding themselves out of water, which can then lead to the evolution of an amphibious lifestyle. To test these hypotheses, we studied the abiotic conditions of 54 rockpools on the island of Guam where there are various species of aquatic, amphibious, and terrestrial blenny fishes. We found little support for the expected deterioration of abiotic conditions in standing pools at low tide (salinity, pH, and oxygen), and fish were not seen to be excl..., , , # Abiotic factors that prompt major ecological transitions: are fish on land to escape an intolerable aquatic environment? [https://doi.org/10.5061/dryad.ht76hdrrd](https://doi.org/10.5061/dryad.ht76hdrrd) ## Description of the data and file structure All data were collected or compiled by Terry Ord ([[e-mail]](mailto:[e-mail])). Related manuscript (MS) information * MS Reference Number: FE-2024-01331 * MS Title: Abiotic factors that prompt major ecological transitions: are fish on land to escape an intolerable aquatic environment? * MS Authors: Ord, Terry J; Surovic, Elizabeth; Vaz, Diego; Irisarri, Iker * MS Journal: Functional Ecology ## OrdTJ\_FE-2024-01331\_rockpool\_volumes.csv Data used to validate the method for estimating rockpool volume #### FILE STRUCTURE AND UNITS OF MEASUREMENTS The file is a .csv file that can be opened using any text, spreadsheet, or statistical program. There are no missing values. * rockpool = The unique ID label for each ro...开拓全新生境是演化过程中的关键事件，但驱动这类生态转型的初始诱因往往尚不明确。鱼类登陆是一类极端的生境转型事件，为实证探究重大生态转型的成因提供了绝佳契机。潮间带生态交错带（intertidal ecotone），尤其是潮池（rockpool），一直是鱼类登陆转型的重要过渡平台。经典假说认为，退潮时潮池内恶劣的非生物条件（abiotic conditions）是促使鱼类主动离水搁浅的诱因，进而推动两栖生活方式的演化。为验证这些假说，我们对关岛周边54处潮池的非生物条件展开了研究，该区域分布有多种水生、两栖及陆生鳚科鱼类。我们发现，退潮时静态潮池的非生物条件（盐度、pH值与溶氧量）并未如预期般恶化，且并未观察到鱼类因…… # 驱动重大生态转型的非生物因子：鱼类登陆是为逃离恶劣水生环境？ [https://doi.org/10.5061/dryad.ht76hdrrd](https://doi.org/10.5061/dryad.ht76hdrrd) ## 数据与文件结构说明 所有数据均由Terry Ord（[[e-mail]](mailto:[e-mail])）收集或整理。 ### 相关稿件（MS）信息 * 稿件编号：FE-2024-01331 * 稿件标题：驱动重大生态转型的非生物因子：鱼类登陆是为逃离恶劣水生环境？ * 作者列表：Ord, Terry J; Surovic, Elizabeth; Vaz, Diego; Irisarri, Iker * 刊载期刊：《功能生态学（Functional Ecology）》 ### OrdTJ_FE-2024-01331_rockpool_volumes.csv 用于验证潮池体积估算方法的数据 #### 文件结构与测量单位 本文件为逗号分隔值（CSV）格式，可通过任意文本编辑器、电子表格或统计软件打开。 无缺失值。 * 潮池（rockpool）：每处潮池的唯一识别标签，原文未完整显示……