Table 1.
Environmental parameters initially obtained from the EcoCrop database and the refined parameters applied to the habitat suitability model.
Fig 1.
Suitability for productive capacity of breadfruit in Hawai’i, with scores ranging from 0 (white, cannot cultivate) to green (100, ideal cultivation) based on 5 climate and soil parameters.
Validation sites are marked by the black crosshairs.
Table 2.
Summary of validation site statistics in terms of measured and simulated productivity and their coefficient of variation, and model accuracy assessment for only sites without irrigation or fertilization and for all sites.
Fig 2.
Current global breadfruit suitability extrapolated from the environmental parameters derived in Hawai’i.
Fig 3.
A mosaic plot comparing a previous global breadfruit model by Lucas and Ragone [62] on the x-axis in categories of unsuitable (0), suitable (1), and best (2), and our fuzzy set model on the y-axis represented by percentage total of each score.
The width of the x-axis indicates the relative total area of that category, while the y-axis indicates the percentage of that area occupied by each suitability score.
Fig 4.
Modeled future global suitability in 2070 for RCP 4.5 (top) and RCP 8.5 (bottom).
Table 3.
Area of breadfruit suitability in millions of km2 for current and future climate projections, presented as total and individual bins as discussed.
Fig 5.
Changes (increase/decrease) in breadfruit suitability over the next 50 years under (top) RCP 4.5 and (bottom) RCP 8.5.