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Fig. 4 | BMC Ecology

Fig. 4

From: Flower strip networks offer promising long term effects on pollinator species richness in intensively cultivated agricultural areas

Fig. 4

Difference D of the Chao 1 Diversity of bee species. Comparison between the enhancement areas (EA) and the control areas (CA) in 2010 (before the enhancement measures started) and in the year 2015 (in the fifth year of enhancement measures). The values present the mean difference D between the enhancement area and the control area ± standard error. Significant differences between the years 2010 and 2015 are marked with * if p < 0.05; ** if p < 0.01 and *** if p < 0.001. The clipart is freely available via https://openclipart.org

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BMC Ecology

ISSN: 1472-6785

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