Authors
Martijn Slot, Camilo Rey‐Sánchez, Klaus Winter, Kaoru Kitajima
Publication date
2014/10
Journal
Functional Ecology
Volume
28
Issue
5
Pages
1074-1086
Description
  1. The scarcity of empirical data on leaf respiration (R) and its temperature sensitivity (e.g. Q10, defined as the proportional increase in R per 10 °C warming) causes uncertainty in current estimates of net primary productivity of tropical forests.
  2. We measured temperature response curves of R on 123 upper‐canopy leaves of 28 species of trees and lianas from a tropical forest in Panama and analysed variations in R and Q10 in relation to other leaf functional traits.
  3. Respiration rates per leaf area at 25 °C (RA) varied widely among species and were significantly higher in trees than in lianas. RA was best predicted by a multiple regression model containing leaf phosphorus concentration, photosynthetic capacity and leaf mass per area (r2 = 0·64). The mean Q10 value (2·4) was significantly higher than the commonly assumed value of 2·0. Q10 was best predicted by the combination of leaf carbohydrate concentration …
Total citations
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Scholar articles
M Slot, C Rey‐Sánchez, K Winter, K Kitajima - Functional Ecology, 2014