Relevance of body weight effects for the population development of common voles and its significance in regulatory risk assessment of pesticides in the European Union

Environmental Sciences Europe

Table 1 Relation of time of first capture, mean body weight at the month of capture (body weight at pregnancy excluded) and production of offspring for females that were caught as juveniles (weight ≤ 15 g) and lived at least 60 days

First-capture month	Mean body weight in month (g)	Remaining reproductive months	Offspring per female per lifetime	Pearson R	p value	R ²
June	14.8 (13.1–16.9)	3	0.667 (0.067–1.667)	− 0.039	0.890	0.002
July	16.3 (14.7–18.0)	2	0.471 (0.059–1.059)	0.191	0.462	0.037
August	15.4 (14.1–17.0)	1	0.235 (0.000–0.647)	− 0.166	0.524	0.028
September	15.8 (14.0–18.0)	0	0.000 (0.000–0.000)	–	–	–

90% confidence intervals (bias corrected accelerated bootstrap confidence intervals, BCa) are provided in brackets