Some sites are not visible because of close proximity. Functional diversity data were available in green sites.
Data are split into southern and northern hemispheres. A linear regression line (southern hemisphere) and a best-fit locally weighted scatterplot smoother (northern hemisphere) was added with 95% confidence intervals to aid visual interpretation.
A best-fit locally weighted scatterplot smoother (LOESS) and 95% confidence intervals (panel b) and boxplots (panels c,d) has been added to aid visual interpretation.
Significance of regression parameters is identified as bootstrapped 95% confidence intervals (error bars) not crossing zero (* indicates significance).
No data were available within the 5° latitudinal bands where bars are missing.
The estimate, standard error (SE), z-value, and p-value are presented for each variable. The estimated degree of freedom (ed), and p-value are presented for the smoother in the northern hemisphere*.
*Approximate significance of cubic spline regression smoother: Estimated df = 2.005, p-value=0.023.
Estimated parameters, standard error (SE), bootstrapped 95% confidence intervals (95% CI), z-values, and p-values are reported for the relationship between α-diversity and environmental covariates.
*Approximate significance of locally weighted scatterplot wave exposure smoother: Estimated df = 8.40, p-value<0.0001.
Latitudinal distribution of the intertidal study sites.