Overview
Seabirds, specifically Procellariiformes, exhibit a contraction of their oceanic ranges and an increase in travel distances as ocean temperatures rise. This finding emerged from a study that analyzed historical changes in their geographical distributions and movements.
Research Context
The study focused on Procellariiformes, an order of seabirds encompassing albatrosses, petrels, shearwaters, and storm petrels. The research investigated adaptive responses of these species to changing environmental conditions, particularly ocean warming, over historical timescales. The context involved understanding how their spatial use of the ocean has been modified in relation to climatic shifts.
Approach
Researchers from the University of Reading conducted a study involving over 120 species of Procellariiformes. Their methodology integrated multiple data sources to track changes in species' ranges and movements throughout history. The analytical approach included the utilization of evolutionary family trees to understand phylogenetic relationships and historical evolutionary trajectories. Additionally, ancient climate records were incorporated to establish past environmental conditions. Ocean temperature data provided specific information on marine thermal dynamics. By combining these datasets, the researchers aimed to reconstruct and analyze how the geographical distributions and migratory patterns of these seabirds have adapted to long-term environmental changes, particularly those driven by ocean warming.
Findings
- Procellariiformes are retreating into smaller oceanic areas.
- These seabirds are traveling further to locate new areas for habitation.
- The observed changes correlate with patterns of global ocean warming.
- Historical tracking, using evolutionary family trees, ancient climate records, and ocean temperature data, indicated these shifts.