案例简介：@ carltonward的照片一只红翅黑鸟在佛罗里达州中部奥基乔比湖上方骚扰大沼泽地蜗牛风筝。众所周知，黑鸟会围攻更大的鸟类来捍卫其筑巢领土。在南美和中美洲的整个物种范围内，多达200万只蜗牛风筝。但是在南佛罗里达州生存的人数不到1,000，那里的水位管理对于他们筑巢和觅食的成功至关重要。蜗牛风筝是高度特化的，有弯曲的喙，专为吃苹果蜗牛而设计。当本地苹果蜗牛被较大的侵入性苹果蜗牛取代时，21世纪00年代初的佛罗里达州人口引起了极大的关注。但是新的研究表明，蜗牛风筝的适应速度比预期的要快-进化出更大的喙，并且在短短两代的时间内总体上变大。# 鸟类 # 进化 # 风筝 # 大沼泽地 @ 黑豹之路 @ 野生走廊 @ insidenatgeo # KeepFLWild。

案例简介：Photo by @carltonward A red-winged blackbird harasses an Everglades snail kite above Lake Okeechobee in central Florida. Blackbirds are known to mob much larger birds to defend their nesting territories. As many as two million snail kites live throughout the species' range in South and Central America. But fewer than 1,000 survive in South Florida, where management of water levels is critical to their nesting and foraging success. Snail kites are highly specialized, with curved beaks designed for eating apple snails. There was great concern for Florida populations in the early 2000s, when native apple snails were replaced by larger invasive apple snails. But new research shows that snail kites were able to adapt faster than expected -- evolving larger beaks and growing larger overall in as few as two generations. #bird #evolution #kite #Everglades @pathofthepanther @fl_wildcorridor @insidenatgeo #KeepFLWild.

国家地理 - Photo by @carltonward A red-winged blackbird harasses an Everglades snail kite above Lake Okeechobee in central Florida.

案例简介：@ carltonward的照片一只红翅黑鸟在佛罗里达州中部奥基乔比湖上方骚扰大沼泽地蜗牛风筝。众所周知，黑鸟会围攻更大的鸟类来捍卫其筑巢领土。在南美和中美洲的整个物种范围内，多达200万只蜗牛风筝。但是在南佛罗里达州生存的人数不到1,000，那里的水位管理对于他们筑巢和觅食的成功至关重要。蜗牛风筝是高度特化的，有弯曲的喙，专为吃苹果蜗牛而设计。当本地苹果蜗牛被较大的侵入性苹果蜗牛取代时，21世纪00年代初的佛罗里达州人口引起了极大的关注。但是新的研究表明，蜗牛风筝的适应速度比预期的要快-进化出更大的喙，并且在短短两代的时间内总体上变大。# 鸟类 # 进化 # 风筝 # 大沼泽地 @ 黑豹之路 @ 野生走廊 @ insidenatgeo # KeepFLWild。

国家地理 - Photo by @carltonward A red-winged blackbird harasses an Everglades snail kite above Lake Okeechobee in central Florida.

案例简介：Photo by @carltonward A red-winged blackbird harasses an Everglades snail kite above Lake Okeechobee in central Florida. Blackbirds are known to mob much larger birds to defend their nesting territories. As many as two million snail kites live throughout the species' range in South and Central America. But fewer than 1,000 survive in South Florida, where management of water levels is critical to their nesting and foraging success. Snail kites are highly specialized, with curved beaks designed for eating apple snails. There was great concern for Florida populations in the early 2000s, when native apple snails were replaced by larger invasive apple snails. But new research shows that snail kites were able to adapt faster than expected -- evolving larger beaks and growing larger overall in as few as two generations. #bird #evolution #kite #Everglades @pathofthepanther @fl_wildcorridor @insidenatgeo #KeepFLWild.

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国家地理 - Photo by @carltonward A red-winged blackbird harasses an Everglades snail kite above Lake Okeechobee in central Florida.

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