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Table 4 Correlation coefficient (Pearson r) values of Odonata taxa as influenced by physicochemical parameters at Alaasin stream

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

− 0.71*

0.18

0.14

− 0.441

− 0.42

− 0.67*

0.205

0.367

− 0.28

0.18

P. melanicterum

− 0.41

0.50

− 0.36

− 0.05

− 0.08**

− 0.91**

0.13

0.46

0.14

0.48

P. nubicum

− 0.30

− 0.53

0.42

− 0.20

0.39

0.09

0.52

− 0.58

− 0.41

− 0.50

P. hamoni

0.36

− 0.49

− 0.07

0.09

0.01

0.10

0.39

− 0.09

− 0.09

− 0.20

A. vaginale

0.35

− 0.53

− 0.13

0.00

0.10

0.11

0.33

− 0.01

− 0.17

− 0.23

A. subtile

− 0.24

− 0.22

0.23

− 0.39

0.67*

0.09

0.18

− 0.14

− 0.61*

− 0.47

A. maclachlani

− 0.03

0.18

0.54

0.07

0.32

0.10

0.44

− 0.41

− 0.29

− 0.36

C. curta

− 0.09

0.19

0.19

− 0.02

− 0.29

− 0.20

0.06

0.07

− 0.12

0.04

C. glauca

0.65*

− 0.07

− 0.11

− 0.02

0.07

0.33

− 0.17

0.22

0.44

0.32

C. pyriformosa

− 0.03

0.18

0.54

0.07

0.32

0.10

0.44

− 0.41

− 0.29

− 0.36

S. ciliata

0.36

0.30

− 0.40

0.31

− 0.02

− 0.02

− 0.26

0.08

0.66*

0.51

P. irridipennis

0.18

− 0.30

0.15

− 0.12

0.46

0.15

0.40

− 0.11

− 0.47

− 0.44

U. cincta

− 0.43

− 0.38

0.46

− 0.24

0.40

0.06

0.40

− 0.56

− 0.39

− 0.44

M. singularis

− 0.05

0.02

0.50

0.30

0.15

0.09

0.26

− 0.47

− 0.25

− 0.48

T. arteriosa

0.13

0.37

− 0.29

− 0.57

− 0.32

− 0.19

− 0.12

0.65*

0.03

0.55

P. lucia

0.36

0.30

− 0.40

0.31

− 0.02

− 0.02

− 0.26

0.08

0.66*

0.51

B. wilsoni

0.02

− 0.15

0.20

− 0.27

− 0.02

0.12

− 0.34

0.38

0.00

0.13

O. julia

− 0.03

− 0.15

0.23

− 0.26

0.00

0.08

− 0.28

0.35

0.00

0.11

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