Insect populations including butterflies are declining worldwide, and they are becoming an
urgent conservation priority in many regions. Understanding which butterfly species migrate …

The Anthropocene is characterised by pervasive human‐inflicted impacts on a broad range
of biota, including insects. In 2019, we reviewed scientific literature quantifying the …

Major declines in insect biomass and diversity, reviewed here, have become obvious and
well documented since the end of World War II. Here, we conclude that the spread and …

Moths are the most taxonomically and ecologically diverse insect taxon for which there exist
considerable time-series abundance data. There is an alarming record of decreases in moth …

Insects around the world are rapidly declining. Concerns over what this loss means for food
security and ecological communities have compelled a growing number of researchers to …

In recent decades, entomologists have documented alarming declines in occurrence,
taxonomic richness, and geographic range of insects around the world. Additionally, some …

Reports of declines in biomass of flying insects have alarmed the world in recent years.
However, how biomass declines reflect biodiversity loss is still an open question. Here, we …

To the Editor—A growing number of studies are providing evidence that a suite of
anthropogenic stressors—habitat loss and fragmentation, pollution, invasive species …

Large-scale biodiversity changes are measured mainly through the responses of a few
taxonomic groups. Much less is known about the trends affecting most invertebrates and …

Rapid changes of the biosphere observed in recent years are caused by both small and
large scale drivers, like shifts in temperature, transformations in land-use, or changes in the …