Responses of global waterbird populations to climate change vary with latitude

摘要: Most research on climate change impacts global biodiversity lacks the resolution to detect changes in species abundance and is limited temperate ecosystems. This limits our understanding of responses abundance—a determinant extinction risk ecosystem function services—to change, including highly biodiverse tropics. We address this knowledge gap by quantifying response waterbirds, an indicator taxon wetland biodiversity, at 6,822 sites between 55° S 64° N. Using 1,303,651 count records 390 species, we show that with temperature increase, populations decreased lower latitudes, particularly tropics, but increased higher latitudes. These contrasting latitudinal indicate potential global-scale poleward shifts under change. The negative increase tropical are conservation concern, as they often also threatened other anthropogenic factors. Gaps geographic coverage data, especially make determining species’ difficult. Modelling a dataset waterbird shows declines tropics increases latitudes when temperatures increase.