> Why are there so few insects and spiders in San Francisco? There used to be a lot. Half of all insect species are in decline. San Francisco State has resea

> Why are there so few insects and spiders in San Francisco? There used to be a lot. Half of all insect species are in decline. San Francisco State has researchers monitoring the decline of the insect population in the city itself. One of them can be reached for further comment: Gretchen LeBuhn https://biology.sfsu.edu/faculty/lebuhn https://biology.sfsu.edu/faculty/lebuhn