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Table 2 Cost of sexual reproduction of C. stenophylla in the four climatic aridity zones (mean ± SE)

From: What drives the shift between sexual and clonal reproduction of Caragana stenophylla along a climatic aridity gradient?

 

Semi-arid zone

Arid zone

Very arid zone

Intensively arid zone

GLMM test results

Flowering efficiency (seeds/flower)

0.846 ± 0.034

0.551 ± 0.048

0.363 ± 0.026

0.021 ± 0.001

F3,12 = 50.07, P < 0.01

Cost of seed production (mg biomass/seed)

36.12 ± 0.87

48.05 ± 3.22

55.64 ± 2.37

494.35 ± 16.13

F3,12 = 312.83, P < 0.01

Sapling establishment rate (sapling /seed) × 10-2

0.681 ± 0.076

0.292 ± 0.054

0.181 ± 0.046

0.097 ± 0.035

F3,284 = 3.93, P < 0.01

CSR (g biomass/sapling)

5.35 ± 0.33

16.48 ± 0.86

31.06 ± 1.27

546.54 ± 89.09

F3,12 = 13.67, P < 0.01

  1. CSR cost of sexual reproduction