Fig. 2
From: Climate-driven reproductive decline in Southern right whales
Time series of calving interval (CI) and environmental indices for southern right whales off southwest Australia from 1996–2024. Solid black lines represent annual means, and vertical grey error bars indicate one standard deviation. Points are coloured based on their deviation from the long-term mean: red indicates values more than 10% above the mean, blue values more than 10% below, and white values within ± 10%. Environmental variables include the Oceanic Niño Index (ONI), Antarctic Oscillation (AAO), Antarctic sea ice concentration anomaly (SIC), cumulative summer chlorophyll-a concentration for mid and high latitudes (Chl), and mid-latitude sea surface temperature (SST).
