Table 2 Standardized major axis (SMA) regression showing relationship between traits in Parthenium hysterophorus across an elevational gradient

Log_LA (mm²)

~ Log_LDW (mg)

700

1.81

1.65–1.98

0.76

0.68–0.85

0.77

< 0.001

1100

1.08

0.82–1.33

1.07

0.95–1.19

0.75

< 0.001

1500

1.55

1.43–1.66

0.87

0.81–0.94

0.915

< 0.001

1800

1.49

1.39–1.59

0.93

0.88–0.99

0.96

< 0.001

Log_LWC (mg)

~ Log_LDW (mg)

700

−2.3

−2.51– −2.09

0.89

0.79–0.99

0.75

< 0.001

1100

−2.79

−2.95– −2.64

1.15

1.07–1.22

0.92

< 0.001

1500

−2.56

−2.71– −2.41

1.00

0.93–1.09

0.88

< 0.001

1800

−2.44

−2.61– −2.26

1.02

0.93–1.12

0.87

< 0.001

Log_LA (mm²)

~ Log_LT (mm)

700

4.94

4.59–5.29

2.18

1.75–2.71

0.04

0.07

1100

5.62

5.17–6.06

3.83

3.16–4.65

0.27

< 0.001

1500

5.81

5.29–6.33

3.59

2.94–4.37

0.21

< 0.001

1800

5.75

5.11–6.40

3.86

3.00–4.96

0.07

0.04

Log_LDW (mg)

~ Log_LT (mm)

700

4.10

3.69–4.52

2.86

2.35–3.48

0.23

< 0.001

1100

4.25

3.90–4.59

3.59

3.06–4.22

0.49

< 0.001

1500

4.88

4.35–5.42

4.11

3.44–4.92

0.36

< 0.001

1800

4.58

3.89–5.27

4.15

3.23–5.32

0.08

0.03