Mudskippers and allies: from water and onto land “just another” land invasion
报告题目：Mudskippers and allies: from water and onto land “just another” land invasion
系列：“生态与环境讲坛”系列第 210 讲
报告人：Dr. Gianluca Polgar
摘要：The tetrapod land invasion has been a seminal event in vertebrate evolutionary history that triggered a rapid and extensive animal radiation into land ecosystems. Understanding the mechanisms and processes of the initial stages of the ecological and evolutionary transition of ancestrally aquatic organisms onto land ecosystems, from aquatic to terrestrial selective regimes, is one of the conundrums of vertebrate biology. The comparative study of the vertebrate species presently living in transitional habitats is one of the methods that have been traditionally used to understand this processes. In this way hundreds of "land invasions" have been identified in living non-tetrapod vertebrates and anamniotes. However, most of the described adaptations involve only one or few ecological functions (e.g. reproduction, feeding, thermoregulation). A few ray-finned fish groups exhibit complex suites of structural adaptations with biological functions that characterise organisms living on land, i.e. terrestrial movement, feeding, respiration, sensory systems, homeostatic mechanisms, and reproduction. Among these groups, amphibious oxudercine gobies, or mudskippers, include peritidal species that most deeply penetrated into terrestrial ecosystems. Synecological interactions between terrestrial and aquatic communities at the dynamic boundary between these ecological domains may be key to understanding what had triggered or hampered, vertebrate land invasions.
简介：Gianluca Polgar is an ichthyologist from the Faculty of Sciences, Universiti Brunei. He is an assistant Professor and recently got a certificate of Abilitazione Scientifica Nazionale 2016-2018 (ASN-National Scientific Qualification) as Professor in ecology. He received his PhD in Ecological Sciences in 2009 from Sapienza University, Italy. Until now, he has published 23 scientific papers and 14 scientific book chapters on topics in mudskipper, mangrove ecosystem, and marine science. He has rich experience in mudskipper research and has quite a lot of interesting stories about mudskippers and allies to share with us.