Erratum to: Oecologia (2014) 175:1051–1061 DOI 10.1007/s00442-014-2988-5

We notify of an error in the caption of Fig. 1, relating to ΔF/F M′ and the associated equation. The caption should read as follows:

Fig. 1 Photochemical quantum yield in response to heat stress treatments, as demonstrated in Acacia papyrocarpa during summer. a Control measurements of maximum quantum yield of PSII (\( PS_{{FV/F_{\text{M}} }} \)) and effective quantum yield (\( PS_{{\Delta F/F_{{{\text{M}}^{{\prime }} }} }} \)) were measured prior to heat stress. F V/F M was measured 2 h after stress treatment and after a further recovery period of ca. 16 h (\( D2_{{FV/F_{\text{M}} }} \), indicating day 2 of measurements) at 46, 48, 50, 52–54 °C and a control temperature of 28 °C. b ∆F/F M′ was measured immediately following stress treatment, 1.5 h after and on day 2 following dark-adapted measurements and an additional 15 min under control conditions in order to light-adapt samples. c The difference between pre-stress and day 2 maximum quantum yield was used as a simple measure of damage to PSII \( (D_{{{\text{PSII}}}} \, = \,(D2_{{FV/F_{{\text{M}}} }} /{\text{PS}}_{{FV/F_{{\text{M}}} }} )) \), solid symbols. Recovery from heat stress was measured as the proportion of initial loss of photosynthetic efficiency that was recovered by day 2 of measurements \( (R_{{\Phi {\text{PSII}}}} \, = \,(D2_{{\Delta F/F_{{{\text{M}}^{\prime } }} }} \, - \,1.5{\text{h)}}/({\text{PS}}_{{\Delta F/F_{{{\text{M}}^{\prime } }} }} \, - \,1.5{\text{h)}}), \) open symbols. For all data points n = 10 ± standard error. Dashed lines are for ease of reading patterns and not representative of continuous time