Extended Data Fig. 4: Explanatory variables overlaid on (sorted) time trends in arthropod abundance among LTERs. | Nature Ecology & Evolution

Extended Data Fig. 4: Explanatory variables overlaid on (sorted) time trends in arthropod abundance among LTERs.

From: No net insect abundance and diversity declines across US Long Term Ecological Research sites

Extended Data Fig. 4

(a) Start year of LTER site sampling. (b) Human Footprint Index associated with LTER site. The average HFI value for locations within the US is 7; LTER sites ranged from 1 to 38. (c) Mean annual temperature at LTER sites. (d) Mean cumulative annual precipitation at LTER sites.

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