Ecological Archives M085-015-A2
Chengjin Chu and Peter B. Adler. 2015. Large niche differences emerge at the recruitment stage to stabilize grassland coexistence. Ecological Monographs 85:373–392. http://dx.doi.org/10.1890/14-1741.1
Appendix B. The spatial scale of species interactions.
Comparison of three methods for calculating δ values for interspecific interactions based on δ values for intraspecific interactions. The ‘Effects’ model assumes that each species affects other species within a characteristic zone of influence, the ‘Responses’ model assumes that each species responds to neighbors within a characteristic zone of influence, and the ‘Interactions’ model assumes that the optimal value is an average of the effects and responses. Shown are AIC values for a growth and survival model for each species. Bold type indicates the best model for each species and vital rate. See the section Summary of study sites and species selection in Materials and Methods for the abbreviations for species names.
Study site |
Species |
Vital rate |
Effects model |
Responses model |
Interactions model |
SD, AZ |
BOER |
Growth |
7871.59 |
7871.60 |
7867.29 |
|
|
Survival |
2996.30 |
2996.96 |
2996.56 |
|
BORO |
Growth |
24424.15 |
24490.68 |
24437.24 |
|
|
Survival |
15495.11 |
15498.25 |
15496.60 |
SS, ID |
ARTR |
Growth |
3231.42 |
3230.89 |
3230.95 |
|
|
Survival |
1245.77 |
1246.09 |
1246.61 |
|
HECO |
Growth |
7060.04 |
7063.67 |
7062.58 |
|
|
Survival |
3102.22 |
3097.47 |
3100.23 |
|
POSE |
Growth |
10521.39 |
10525.27 |
10523.49 |
|
|
Survival |
4672.50 |
4675.63 |
4674.16 |
|
PSSP |
Growth |
13193.22 |
13207.84 |
13198.74 |
|
|
Survival |
4927.21 |
4938.68 |
4932.18 |
SMP, KS |
BOCU |
Growth |
2573.58 |
2562.44 |
2569.59 |
|
|
Survival |
1448.84 |
1449.22 |
1448.95 |
|
BOHI |
Growth |
1638.38 |
1639.19 |
1639.01 |
|
|
Survival |
808.62 |
809.70 |
808.95 |
|
SCSC |
Growth |
1283.37 |
1288.61 |
1284.36 |
|
|
Survival |
685.16 |
684.82 |
685.19 |
NMP, MT |
BOGR |
Growth |
12609.67 |
12609.24 |
12609.72 |
|
|
Survival |
5223.53 |
5222.41 |
5222.96 |
|
HECO |
Growth |
5634.54 |
5639.37 |
5636.62 |
|
|
Survival |
2904.24 |
2903.68 |
2904.15 |
|
PASM |
Growth |
15298.78 |
15303.47 |
15300.42 |
|
|
Survival |
9542.60 |
9542.11 |
9542.32 |
|
POSE |
Growth |
8426.74 |
8430.96 |
8429.04 |
|
|
Survival |
4151.88 |
4152.22 |
4152.04 |
CD, NM |
BOER |
Growth |
23740.99 |
23748.29 |
23744.76 |
|
|
Survival |
12712.28 |
12712.26 |
12712.27 |
|
SPFL |
Growth |
6061.84 |
6067.83 |
6063.90 |
|
|
Survival |
3294.02 |
3294.24 |
3294.13 |