Credit: CSIRO
Original Published Date: 
Wednesday, July 8, 2020

Full article issued by The University of Adelaide and University of Technology Sydney.

The global redistribution of marine and terrestrial species due to climate change is a major concern for conservation planners and resource managers. Now an ARC-supported study, led by Professor Ivan Nagelkerken, a Future Fellowship recipient from The University of Adelaide, is using data from long-term surveys of tropical fishes to study this 'range shift phenomenon'.

The study looked at the ranges of tropical fish, under pressure to escape warming environments and relocate to cooler areas. They found that for a tropical fish, having a broad diet was the main contributor to the establishment success during early stages, and was more important than other factors, such as having large body size or a broad latitudinal range. 

Professor Nagelkerken said that generalist species generally fare better than specialists when “their environment is suffering from human impacts”.

Professor of Marine Biology, and Chief Investigator on the project, David Booth, from The University of Technology Sydney, said “The study makes great use of the 18 year survey dataset we have on invading tropical fishes, and involved an ongoing collaboration with four academic institutions and a number of graduate students, both local and International.”

Photo credit: 

Image credit: CSIRO (CC BY 3.0).