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. 2020 Feb 18;13:89. doi: 10.1186/s13071-020-3955-0

Table 2.

Kendallʼs rank correlation of climatic variables versus Phortica variegata males referred to the day of sampling

Site Variable Valid n Kendall’s tau b P-value
All sites Day length 76 0.021 0.80
Maximum temperature 75 0.45 < 0.0001
Minimum temperature 75 0.40 < 0.0001
Mean temperature 75 0.43 < 0.0001
Mean wind speed 73 0.17 0.044
Barometric pressure 76 − 0.25 0.003
Relative humiditya 55 − 0.23 0.014
Manziana Day length 17 − 0.16 0.44
Maximum temperature 16 0.30 0.15
Minimum temperature 16 0.15 0.025
Mean temperature 16 0.34 0.10
Mean wind speed 17 -0.40 0.039
Barometric pressure 17 0.13 0.53
Relative humidity 7 0.59 0.10
Oliveto Lucano Day length 17 0.27 0.16
Maximum temperature 17 0.58 0.002
Minimum temperature 17 0.39 0.041
Mean temperature 17 0.47 0.015
Mean wind speed 17 − 0.15 0.44
Barometric pressure 17 − 0.08 0.70
Relative humidity 17 − 0.07 0.74
El Escorial Day length 17 0.30 0.10
Maximum temperature 17 0.57 0.002
Minimum temperature 17 0.48 0.008
Mean temperature 17 0.59 0.001
Mean wind speed 14 − 0.16 0.47
Barometric pressure 17 0.35 0.057
Relative humidity 16 − 0.39 0.042
New Forest Day length 10 0.18 0.60
Maximum temperature 10 0.55 0.07
Minimum temperature 10 0.22 0.51
Mean temperature 10 0.44 0.15
Mean wind speed 10 − 0.11 0.80
Barometric pressure 10 − 0.11 0.80
Relative humidity na na na
Highland Park Day length 15 0.24 0.25
Maximum temperature 15 0.56 0.006
Minimum temperature 15 0.76 0.0002
Mean temperature 15 0.52 0.010
Mean wind speed 15 0.06 0.80
Barometric pressure 15 − 0.18 0.39
Relative humidity 15 0.08 0.73

aNew Forest data not available

Notes: Day length recorded as % of light in 24 hours; temperature recorded as °C; wind speed recorded as m/s; pressure recorded as hPa; humidity recorded as %. Italic highlights the variables with significant correlations (P-value < 0.05)

Abbreviations: Valid n, records used in the statistics; Kendallʼs tau b, correlation value; P-value, two-sided significance level of the b-statistics; na, data not available