Ecological Archives E096-138-A1
Stuart E. Jones and Jay T. Lennon. 2015. A test of the subsidy–stability hypothesis: the effects of terrestrial carbon in aquatic ecosystems. Ecology 96:1550–1560. http://dx.doi.org/10.1890/14-1783.1
Appendix A. Scaled displacement (i.e., sensitivity) of food web and ecosystem properties in response to a nutrient pulse perturbation.
Table A1. The mean and range of scaled displacement (i.e., sensitivity) for food web (chlorophyll a and zooplankton biomass) and ecosystem (gross primary productivity and ecosystem respiration) properties in response to a pulse nutrient perturbation. To facilitate comparison of displacement, we scaled the maximum displacement observed for each response variable following a pulse nutrient perturbation by the pre-perturbation mean of that response variable in each pond. The reported values can be interpreted as the fold displacement from the average pre-perturbation condition for each response variable.
Response |
Mean scaled displacement |
Range of scaled displacements |
Chlorophyll a |
3.13 |
0.03 – 8.33 |
Zooplankton biomass |
0.19 |
0.01 – 0.48 |
Gross primary production (GPP) |
0.05 |
0.003 – 0.19 |
Ecosystem respiration (R) |
0.04 |
0.003 – 0.12 |