Correction: Martellos et al. Volunteers Recruitment, Retention, and Performance during the CSMON-LIFE (Citizen Science MONitoring) Project and 3 Years of Follow-Up. Sustainability 2021, 13, 11110

Error in Table

In the original publication [1], there were typographical errors in Table 4 as published. Thus, Table 4 needs to be corrected to the correct version as accepted by the peer review. The corrected

Table 4. Volunteers divided into retention groups and age classes.

Retention Groups	≤1950	1951–60	1961–70	1971–80	1981–90	1991–00	2001–08	Total	p
1	16 57.14%	70 60.87%	128 62.75%	201 75.28%	111 66.87%	201 74.17%	268 83.23%	995 72.47%	<0.001
2–5	1 3.57%	17 14.78%	32 15.69%	28 10.49%	33 19.88%	50 18.45%	47 14.60%	208 15.15%	0.047
6–10	4 14.29%	7 6.09%	10 4.90%	9 3.37%	8 4.82%	7 2.58%	2 0.62%	47 3.42%	<0.001
11–20	2 7.14%	11 9.57%	16 7.84%	18 6.74%	8 4.82%	3 1.11%	4 1.24%	62 4.52%	<0.001
21–30	0 0%	3 2.61%	8 3.92%	6 2.25%	2 1.20%	3 1.11%	0 0%	22 1.60%	0.023
>30	5 17.86%	7 6.09%	10 4.90%	5 1.87%	4 2.41%	7 2.58%	1 0.31%	39 2.84%	<0.001
Total	28 2.04%	115 8.38%	204 14.86%	267 19.45%	166 12.09%	271 19.74%	322 23.45%	1373 100%

Retention groups are based on the number of months in which each volunteer contributed to the project. Retention groups are 1 month, 2–5 months, 6–10 months, 11–20 months, 21–30 months, and >30 months. Age classes are based on year of birth. Number of volunteers and percentages for each age class are reported. In the “Total” row and column, percentages are calculated based on 1373 volunteers. Significance of the diversity of age classes per retention group was tested by mean of Pearson’s chi-squared test.

appears below. The authors state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.