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Figure from:Worldwide decline of the entomofauna: A review of its drivers

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Fig. 2. Annual rate of decline of the three major taxa studied (percentage of species declining per year) and of insect biomass.

Figure 2 Annual rate of decline of the three major taxa studied (percentage of species declining per year) and of insect biomass.

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Proportion of declining and threatened species per taxa according to IUCN criteria (> 30% decline), the annual rate of decline in species (i.e. additional declines per year) and the local or regional extinction rate (i.e. percent of species not observed in > 50 years).
Proportion of declining and threatened species per taxa according to IUCN criteria (> 30% decline), the annual rate of decline in species (i.e. additional declines per year) and the local or regional extinction rate (i.e. percent of species not observed in > 50 years).
Fig. 3. Proportion of insect species in decline or locally extinct according to the IUCN criteria: vulnerable species (> 30% decline), endangered species (> 50% decline) and extinct (not recorded for > 50 years). A) terrestrial taxa; B) aquatic taxa.
Fig. 3. Proportion of insect species in decline or locally extinct according to the IUCN criteria: vulnerable species (> 30% decline), endangered species (> 50% decline) and extinct (not recorded for > 50 years). A) terrestrial taxa; B) aquatic taxa.
Fig. 5. The four major drivers of decline for each of the studied taxa according to reports in the literature. Habitat change is an immediate consequence of human activities. Its global pace and scope has been expanding over the past centuries, with increasing amounts of land being transformed to provide dwellings, facilitate transportation and enable tourism (urbanisation), grow food
Fig. 5. The four major drivers of decline for each of the studied taxa according to reports in the literature. Habitat change is an immediate consequence of human activities. Its global pace and scope has been expanding over the past centuries, with increasing amounts of land being transformed to provide dwellings, facilitate transportation and enable tourism (urbanisation), grow food
Fig. 4. Proportion of declining insect species in different regions of the world.
Fig. 4. Proportion of declining insect species in different regions of the world.
Fig. 6. Main factors associated with insect declines — see also Fig. 5.
Fig. 6. Main factors associated with insect declines — see also Fig. 5.