Journal of Biogeography
SUPPORTING INFORMATION
Community-level assessment of freezing tolerance: frost dictates the biome boundary between Albany subtropical thicket and NamaKaroo in South Africa
Robbert Duker, Richard M. Cowling, Derek R. du Preez, Marius L. van der Vyver, Clayton R. Weatherall-Thomas and Alastair J. Potts
Appendix S2 Examples (Figures S8–S11) of imaging pulse amplitude modulated fluorimeter (IPAM) images of photosynthetic efficiency
(Fv/Fm) for 15 species sampled from the Albany subtropical thicket and Nama-Karoo biomes at the study site at Kaboega, Eastern Cape, South
Africa, and exposed to different freezing treatments.
Figure S8 Examples of photosynthetic efficiency (Fv/Fm) IPAM images for four freezing-intolerant Albany subtropical thicket species exposed
to three different experimental freezing treatments (E, exposed; C, control).
Figure S9 Examples of photosynthetic efficiency (Fv/Fm) IPAM images for three freezing-intolerant Albany subtropical thicket species exposed
to three different experimental freezing treatments (E, exposed; C, control).
Figure S10 Examples of photosynthetic efficiency (Fv/Fm) IPAM images for four freezing-tolerant Nama-Karoo shrubland species exposed to
three different experimental freezing treatments (E, exposed; C, control).
Figure S11 Examples of photosynthetic efficiency (Fv/Fm) IPAM images for four freezing-tolerant Nama-Karoo shrubland species exposed to
three different experimental freezing treatments (E, exposed; C, control).