Determining the relative roles of dispersal and vicariance in the assembly of the New Zealand fauna. New fossils from New Zealand's St Bathans Fauna (19-16 million years) will revolutionise our understanding of the shared biodiversity and evolutionary history of New Zealand and Australia through the first views of the origin and evolution of major Gondwanan groups including frogs, crocodiles, birds and bats on the now mostly-drowned continent Zealandia.
Utilizing the geological record to constrain the response of marine ecosystems and global carbon cycling to warming and de-oxygenation. Earth history is punctuated by a huge variety of transitions and perturbations in climate, biogeochemical cycling, and ecosystems, some of which may hold direct future-relevant information. In the oceans, these are closely linked in a complex web of feedbacks, as well as to the oxygenation of the ocean and the ultimate geological fate of excessive carbon release ....Utilizing the geological record to constrain the response of marine ecosystems and global carbon cycling to warming and de-oxygenation. Earth history is punctuated by a huge variety of transitions and perturbations in climate, biogeochemical cycling, and ecosystems, some of which may hold direct future-relevant information. In the oceans, these are closely linked in a complex web of feedbacks, as well as to the oxygenation of the ocean and the ultimate geological fate of excessive carbon released into the atmosphere – burial of carbon in sediments. This project will develop a computer model representation of this coupled carbon-climate-life system and test this against the geological record, explore the causes and consequences of carbon release events and extinctions as well as how the ocean floor delivery and preservation of organic carbon responds.Read moreRead less
The Eocene high latitude Australasian 'tropics' in a changing climate: resolving conflicting evidence. Between 45 to 30 million years ago, high latitude subtropical floras in Australia and New Zealand experienced significant climate change, leading to the evolution of present day vegetation. Understanding the effects of this climate change on extinction and speciation will produce more accurate predictions about modern floras when faced with climate change.