Table 9 Schoener’s index (D) of niche overlap and equivalency test between the main taxa contributing to the detected areas of Endemism (bold letters represent statistically significant values p = 0.05).

Interior Dry Chaco

1° × 1°

Senegalia emilioana–Arachis batizocoi

0.18

0.78

Senegalia emilioana–Chaetocalyx chacoensis

0.33

0.68

Senegalia emilioana–Lophocarpinia aculeatifolia

0.36

0.90

Senegalia emilioana–Mimosa castanoclada

0.64

0.70

Senegalia emilioana–Piptadeniopsis lomentifera

0.53

0.78

Senegalia emilioana–Neltuma nuda

0.49

0.65

Arachis batizocoi–Chaetocalyx chacoensis

0.06

0.96

Arachis batizocoi–Lophocarpinia aculeatifolia

0.02

0.96

Arachis batizocoi–Mimosa castanoclada

0.13

0.96

Arachis batizocoi–Piptadeniopsis lomentifera

0.06

0.76

Arachis batizocoi–Neltuma nuda

0.06

1

Chaetocalyx chacoensis–Lophocarpinia aculeatifolia

0.17

0.92

Chaetocalyx chacoensis–Mimosa castanoclada

0.45

0.45

Chaetocalyx chacoensis–Piptadeniopsis lomentifera

0.30

0.76

Chaetocalyx chacoensis–Neltuma nuda

0.32

0.63

Lophocarpinia aculeatifolia–Mimosa castanoclada

0.31

1

Lophocarpinia aculeatifolia–Piptadeniopsis lomentifera

0.59

1

Lophocarpinia aculeatifolia–Neltuma nuda

0.55

0.55

Mimosa castanoclada–Piptadeniopsis lomentifera

0.60

0.96

Mimosa castanoclada–Neltuma nuda

0.62

0.57

Piptadeniopsis lomentifera–Neltuma nuda

0.48

0.68

Upper Paraguay River Basin

1° × 1°

Arachis lignosa–Neltuma rubriflora

0.48

0.84

Arachis lignosa–Bauhinia hagenbeckii

0.006

0.98

Bauhinia hagenbeckii–Neltuma rubriflora

0.006

0.98

Low Paraguay–Paraná River Basins

1° × 1°

Arachis correntina–Galactia longifolia

0.34

1

Arachis correntina–Mimosa pseudopetiolaris

0.08

0.94

Galactia longifolia - Mimosa pseudopetiolaris

0

1

Sierra Chaco

1° × 1°

Dalea elegans–Galactia glaucophylla

0.40

0.70

Dalea elegans –Indigofera kurtzii

0.09

0.94

Dalea elegans–Mimosa cordobensis

0.53

0.17

Galactia glaucophylla–Indigofera kurtzii

0.23

0.47

Galactia glaucophylla–Mimosa cordobensis

0.42

0.12

Indigofera kurtzii–Mimosa cordobensis

0.34

0.27

Dry/Sierra Chaco ecotone

1.25° × 1.25°

Adesmia cordobensis–Crotalaria chaco-serranensis

0.42

0.86

Adesmia cordobensis–Neltuma flexuosa

0.22

1

Adesmia cordobensis–Neltuma pugionata

0.40

0.98

Adesmia cordobensis–Senna subulata

0.48

1

Crotalaria chaco-serranensis–Neltuma flexuosa

0.19

0.76

Crotalaria chaco-serranensis–Neltuma pugionata

0.26

0.70

Crotalaria chaco-serranensis–Senna subulata

0.76

0.43

Neltuma flexuosa–Neltuma pugionata

0.42

0.41

Neltuma flexuosa–Senna subulata

0.29

0.78

Neltuma pugionata–Senna subulata

0.26

0.78