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Table 6 Correlation coefficient (Pearson r) values of Odonata taxa as influenced by physicochemical parameters at River Aponmu

From: An ecological study of freshwater ecosystem and its colligation to Odonates assemblages in Ipogun, Southwest Nigeria

Odonata

Parameters

Amb. temp (°C)

pH

DO (mg/L)

EC (µS/cm)

TURBIDITY (NTU)

WATER TEMP (°C)

TDS (mg/L)

BOD (mg/L)

PO4 (mg/L)

NO3 (mg/L)

P. kersteni

− 0.24

0.07

0.71*

0.63*

0.33

0.07

0.62*

− 0.44

− 0.43

− 0.44

P. melanicterum

− 0.31

− 0.10

0.17

− 0.12

− 0.13

− 0.02

0.27

0.06

− 0.23

− 0.16

P. sublacteum

− 0.21

0.17

0.07

0.14

0.31

− 0.00

0.04

− 0.14

− 0.42

− 0.25

P. glaucum

0.02

− 0.23

0.21

0.12

− 0.12

− 0.00

0.50

− 0.14

− 0.22

− 0.25

P. torridum

0.17

− 0.27

0.12

0.06

0.04

− 0.04

0.18

− 0.13

− 0.22

− 0.23

P. sudanicum

− 0.35

− 0.01

0.63*

0.57

0.34

− 0.00

0.41

− 0.61*

− 0.44

− 0.50

C. glabrum

0.81**

0.17

− 0.29

0.34

0.27

0.37

− 0.01

0.39

0.30

0.56

A. victoria

0.02

− 0.23

0.21

0.12

− 0.12

− 0.00

0.50

− 0.14

− 0.22

− 0.25

A. subtile

− 0.15

0.07

0.12

0.16

0.32

− 0.02

0.11

− 0.19

− 0.49

− 0.34

A. vaginale

− 0.14

− 0.05

0.16

0.10

− 0.20

0.03

0.48

− 0.06

− 0.06

− 0.11

L. pinheyi

0.17

− 0.05

− 0.42

0.11

− 0.12

0.37

− 0.27

0.09

0.41

0.01

L. pallidus

− 0.05

− 0.53

0.29

0.10

0.20

− 0.00

0.19

− 0.40

− 0.44

− 0.44

E. glauca

0.17

− 0.27

0.12

0.06

0.04

− 0.04

0.18

− 0.13

− 0.22

− 0.23

M. singularis

− 0.14

0.28

0.48

0.57

0.19

− 0.04

0.42

− 0.36

− 0.22

− 0.29

C. curta

− 0.14

0.28

0.48

0.57

0.19

− 0.04

0.42

− 0.36

− 0.22

− 0.29

C. glauca

− 0.41

− 0.42

− 0.07

− 0.26

0.40

0.08

− 0.27

− 0.23

− 0.59

− 0.34

P. iridipennis

0.10

− 0.29

0.26

0.24

0.59

− 0.06

0.39

− 0.31

− 0.31

− 0.36

P. camerunensis

− 0.46

− 0.60

0.39

0.08

0.35

0.08

0.04

− 0.59

− 0.49

− 0.48

T. arteriosa

0.01

0.49

− 0.23

− 0.57

− 0.03

− 0.09

− 0.58

0.52

0.44

0.47

T. imitata

0.49

0.50

− 0.40

− 0.19

− 0.42

− 0.38

− 0.30

0.47

0.49

0.74**

T. furva

− 0.14

0.50

− 0.24

− 0.59

− 0.84**

− 0.88**

− 0.39

0.24

0.36

0.44

T. aconita

− 0.14

− 0.38

0.07

0.13

− 0.12

− 0.04

0.40

− 0.36

− 0.12

− 0.23

P. deceptor

− 0.14

0.50

− 0.24

− 0.59

− 0.84**

− 0.88**

− 0.39

0.24

0.36

0.44

P. lucia

0.69*

− 0.01

− 0.23

0.38

0.20

0.32

0.17

0.19

0.22

0.41

O. stemmale

− 0.05

0.50

0.01

0.55

− 0.18

− 0.27

− 0.52

0.56

0.39

0.43

O. guineense

0.02

− 0.23

0.21

0.12

− 0.12

− 0.00

0.50

− 0.14

− 0.22

− 0.25

O. chrysostigma

− 0.01

− 0.49

0.13

0.15

− 0.08

− 0.06

0.46

− 0.39

− 0.24

− 0.34

O. julia

− 0.15

− 0.03

− 0.39

− 0.41

0.26

0.07

− 0.38

0.15

− 0.30

− 0.02

B. wilsoni

− 0.07

0.19

0.17

− 0.24

0.05

0.12

− 0.20

0.43

0.23

0.15

P. genei

− 0.16

0.00

− 0.42

− 0.55

0.25

− 0.10

− 0.43

0.19

− 0.32

− 0.00

  1. *Correlation is significant at the 0.05 level
  2. **Correlation is significant at the 0.01 level