Bugün öğrendim ki: Yeni Zelanda'da kara memelilerinin yokluğu, kuşların baskın hale gelmesine izin verdi ve yırtıcılardan daha az tehditle birçok tür uçamaz hale geldi. Yeni Zelanda, dünyadaki 60 türden 16'sına sahip en uçamayan kuşlara ev sahipliği yapmaktadır.
An **ecological island** is not necessarily an [island](/wiki/Island "Island") surrounded by water, but is an area of land, isolated by natural or artificial means from the surrounding land,[1] where a natural micro-habitat exists amidst a larger differing [ecosystem](/wiki/Ecosystem "Ecosystem"). Also, in artificial ecological islands (also known as **mainland islands** ): * all non-native species (at least [predator](/wiki/Predator "Predator") species) have been eradicated, * native species are reintroduced and nurtured, and * the natural or artificial border is maintained to prevent reintroduction of non-native species. The ultimate goal is to recreate an ecological microcosm of the country as a whole as it was before human arrival. There is usually provision for controlled public access, and scientific study and research. The definition does not include land within a fence erected to: * protect farm animals from wild predators * protect a specific species from specific predators * exclude farm animals only * exclude native animals (although some native animals, [weka](/wiki/Weka) "Weka") for example, may need to be excluded during a species' recovery phase).