Climate change is forcing marine species to migrate across hostile coastal environments. Using environmental DNA from seawater, this research demonstrates a powerful new way to detect and monitor biodiversity, revealing hundreds of species per sample. eDNA offers a scalable, sensitive tool for tracking ecosystem change and guiding conservation in rapidly changing marine environments.

Feathers and blood preserve detailed biological records of Tītī stress, diet, and environment across both New Zealand and the North Pacific. By analysing hormones and stable isotopes in modern and historical samples, this research reveals how climate change affects Tītī populations and identifies which groups are most vulnerable, guiding future conservation efforts.