Extended Data Fig. 7 | Predictive skill of the Metabolic Index in delineating
the species geographical range, compared with temperature or ppOO 22 alone.
The F 1 -score measures the ability of each environmental variable at a given
threshold value to categorize the ocean into inhabited and uninhabited
regions. The maximum F 1 -score for Φ is then compared with the maximum
value for temperature or pO 2 thresholds and plotted on a log 10 scale such that
positive (negative) values indicate a stronger (weaker) predictive skill for Φ.
Printed numbers (n) on the graph indicate the number of species that fall
within each quadrant (for numbers in quadrants) or to each side of the axes
(for numbers on axes). For example, Φ outperforms T in 44 species, and
underperforms in only 4, and outperforms both T and pO 2 in 30 species.
A maximum F 1 -score was found for 48 species, while 8 additional species
had no clear maximum in F 1 -score.