观察到两种极危鸟种的新分布

观察到两种极危鸟种的新分布

Critical News

Last month a team of American and Honduran researchers and conservationists travelled to western Honduras to search for Honduran Emerald Amazilia luciae, a Critically Endangered species of hummingbird, endemic to Honduras. The principal cause of its decline is habitat destruction, with approximately 90% of its original habitat lost, and the remaining habitat occurring in isolated patches of arid thorn-forest and scrub of the interior valleys of northern Honduras. Based on specimen data, the species was originally known to occur in four Honduran departments, Cortés and Santa Barbara in western Honduras, and Yoro and Olancho in north-eastern Honduras. Despite efforts to find the species in western Honduras, it had not been reported there since 1935. The team conducted searches in Santa Barbara and Cortés and found six sites inhabited by the Emerald, all in the department of Santa Barbara.

“Finding the species in western Honduras gives hope for the conservation of the species" —Stuart Butchart, BirdLife International

“This is a great result and goes to show how well this method of habitat modelling can work”, said Dr Rob Clay, Senior Conservation Manager for the Americas. “This species suffers not only from habitat loss but also from trapping, as this attractive bird is popular as a cagebird.”

Both these birds are among 190 Critically Endangered species in need of a Species Champion as part of the BirdLife Preventing Extinctions Programme.

資料來源: pcitejianchihu 2009-1-3 23:41 jianchihu 2009-1-3 23:41 我以为可能是这样：根据原有的记录点的生境/栖息地特征，比如植被类型、海拔、坡向等，经过分析选出有统计学意义的项，再借助诸如GIS软件对已知分布范围的要素分析，就可以得出现在尚存的适宜栖息地了，最后再去最适栖息地寻找就可以了

台灣的鳥類研究人員就是使用這種方法去判斷仙八色鶇的潛在繁殖分布範圍的。