CEES Friday seminar: Global patterns of biodiversity and biogeography

By Mark J. Costello from the Institute of Marine Science, University of Auckland, New Zealand


This talk will first challenge beliefs in: (1) how many species exist and remain to be named; (2) if there are more species in the ocean than on land, deep-sea than coastal, microscopic than macroscopic, and parasites than hosts; (3) taxonomic effort; and (4) whether marine species richness is highest in the tropics and peaking at the equator. I will show how biogeography across taxa and body sizes reflects species richness. New world maps of marine biogeographic realms based on endemicity, and how to use current data to map the best locations for Marine Protected Areas is illustrated for the Coral Triangle. This knowledge informs conservation prioritisation, extinction risks and the effects of climate warming on biodiversity.  

Mark J. Costello, Institute of Marine Science, University of Auckland, New Zealand


Mark Costello is an ecologist with a long-time interest in biogeography and biodiversity from local to global scales, particularly in marine and freshwater ecosystems. Born in Ireland, he studied in Galway and Cork, and had post-docs at the Marine Biological Association in Plymouth England, and the Scottish Office and Napier University in Scotland. He was a lecturer in Trinity College Dublin, Managing Director of EcoServe, an environmental consulting company in Ireland, Executive Director of the Huntsman Marine Science Centre Canada, and is a professor at the University of Auckland, New Zealand. His research group webpage is www.oceansofbiodiversity.auckland.ac.nz.

Published Apr. 29, 2019 12:19 PM - Last modified Mar. 8, 2021 10:30 AM