Project description
Axial evolution: marine tetrapod evolutionary dynamics
Evolutionary biology unravels adaptations and evolutionary impacts of major ecological transitions. Secondary invasions of the aquatic realm by land-dwelling tetrapods are one example, involving a shift from limb-based to axial-driven locomotion and accompanying reorganisation of the postcranial skeleton. The EU-funded Back2Sea project will investigate the impact of the secondary invasion of the aquatic realm on the mammalian backbone by examining vertebral morphology and function, backbone regionalisation and modularity, and mode and tempo of axial evolution. Back2Sea will quantify form and function at organismic scale using biomechanical experimentation and combine this with data on macroevolutionary patterns of vertebral morphology across various terrestrial, aquatic and semiaquatic extant and fossil mammals. Analyses will address fundamental questions about the patterns and processes driving land-to-water transitions.
Objective
Unravelling adaptations and evolutionary impacts of major ecological transitions remains a central theme in evolutionary biology. Secondary invasions of the aquatic realm by land-dwelling tetrapods are one such example, involving a shift from limb-based to axial-driven locomotion and accompanying reorganization of the postcranial skeleton. Modifications of limbs to flippers are well documented, yet, adaptations of the backbone associated with these transitions remain poorly understood. Mammals have reinvaded water numerous times, using a variety of swimming modes, and thus provide an ideal system for studying axial evolution in land-to-water transitions. The Back2Sea project will investigate the impact of the secondary invasion of the aquatic realm on the mammalian backbone by examining: (i) vertebral morphology and function, (ii) backbone regionalisation and modularity, and (iii) mode and tempo of axial evolution. To achieve this, Back2Sea will quantify form and function at the organismic scale using biomechanical experimentation, and combine this with data on macroevolutionary patterns of vertebral morphology across a wide variety of terrestrial, aquatic, and semiaquatic extant and fossil mammals. Analyses conducted in a broad phylogenetic and quantitative evolutionary context will address fundamental questions about the patterns and processes driving land-to-water transitions. This multidisciplinary approach will allow the Fellow to expand upon her previous work on cetaceans, and acquire a broad set of new skills including biomechanical experimentation, use of fossil specimens, and cutting-edge computational methods. By developing these skills, enhancing her marine mammal knowledge, and establishing new research networks, Back2Sea will lay the foundation for building the Fellow's research niche as a future leader in marine tetrapod evolutionary dynamics.
Fields of science
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
Keywords
Programme(s)
Funding Scheme
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinator
M13 9PL Manchester
United Kingdom