BBC News - Snakes in mysterious global decline

Snakes may be declining across the world, according to a global study. Researchers examined records for 17 snake populations covering eight species over the last few decades, and found most had declined markedly. For reasons that are not entirely clear, some populations shrank in number abruptly around 1998. Writing in the journal Biology Letters, the researchers describe the findings as "alarming

[Scatterbrain]

世界各地でヘビが激減している。特に1998年以降。野生動物の生息地の減少、気候温暖化も要因か？

[fuldagap]

"Populations shrank even in protected areas, suggesting that the progressive loss of habitat for wild animals being seen all over the world is not the only cause."ふうむ。