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Fig. 1. | BMC Biology

Fig. 1.

From: The important challenge of quantifying tropical diversity

Fig. 1.

Rigorous ecological survey data are strongly concentrated in temperate latitudes. For example, this plot illustrates the density of survey points, in relation to latitude (degrees north and south, with the equator indicated by the dashed line), in the BioTIME database of assemblage time series [1]. The dearth of these data from tropical regions demonstrates the importance of databases [5] and analyses, as in [4], which draw on different data sources

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