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Do Different Teams Produce Different Results in Long-Term Lichen Biomonitoring?

1
TerraData srl environmetrics, Spin-off dell’Università di Siena, 58025 Monterotondo Marittimo (GR), Italy
2
DIFAR, University of Genova, 16148 Genova, Italy
*
Author to whom correspondence should be addressed.
Diversity 2019, 11(3), 43; https://doi.org/10.3390/d11030043
Received: 20 February 2019 / Revised: 12 March 2019 / Accepted: 14 March 2019 / Published: 19 March 2019
(This article belongs to the Special Issue Lichen Diversity and Biomonitoring)
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Abstract

Lichen biomonitoring programs focus on temporal variations in epiphytic lichen communities in relation to the effects of atmospheric pollution. As repeated surveys are planned at medium to long term intervals, the alternation of different operators is often possible. This involves the need to consider the effect of non-sampling errors (e.g., observer errors). Here we relate the trends of lichen communities in repeated surveys with the contribution of different teams of specialists involved in sampling. For this reason, lichen diversity data collected in Italy within several ongoing biomonitoring programs have been considered. The variations of components of gamma diversity between the surveys have been related to the composition of the teams of operators. As a major result, the composition of the teams significantly affected data comparability: Similarity (S), Species Replacement (R), and Richness Difference (D) showed significant differences between “same” and “partially” versus “different” teams, with characteristics trends over time. The results suggest a more careful interpretation of temporal variations in biomonitoring studies. View Full-Text
Keywords: lichens; air pollution; Lichen Diversity Value (LDV); gamma diversity lichens; air pollution; Lichen Diversity Value (LDV); gamma diversity
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Brunialti, G.; Frati, L.; Malegori, C.; Giordani, P.; Malaspina, P. Do Different Teams Produce Different Results in Long-Term Lichen Biomonitoring? Diversity 2019, 11, 43.

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