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Welcome to Invasive Species Week!

10,000 Birds

Here at 10,000 Birds we are going to dedicate the coming week, from today until Saturday, to invasive species. Of course, most of the species we will cover will fit the more traditional definition of invasive species, which usually only covers introduced species that are doing harm to species in the areas to which they are introduced.

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Visit the Macaw Lodge in Costa Rica

10,000 Birds

Today the reserve contains mature forests, secondary forests, rivers, lagoons, small waterfalls, agroforestry productive areas, and functional gardens; which are the habitat of more than 350 species of birds.

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African Pythons Targeted for Removal

10,000 Birds

Another species of Python, the African Python ( Python sebae ) has established a small population in the 2,877-acre Bird Drive Area (BDA) in South Florida. Photo Credit: Invasive and Exotic Species of North America (www.invasive.org). The invasive Burmese Python ( Python molurus ) is well established in the Florida Everglade.

Pythons 183
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Bird-Eating Fish

10,000 Birds

It has also found its way to Japan where it is considered to be an invasive species. Now and then individual catfish of various species hunt nearer the surface and larger catfish such as the American Channel Cat will take a duck or other water bird. As noted, the fish-like mammals do this as well.

Fish 207
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The Cattle Egret Expansion

10,000 Birds

Other species have certainly expanded their ranges, but never in such a rapid and global scale. The Cattle Egret is native to Africa, where it is a familiar sight among herds of large mammals. For reasons that are not quite clear, this species underwent a massive range expansion. This species is primarily an insectivore.

Cattle 170
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Acclimatisation Societies of New Zealand

10,000 Birds

There are the endemics, which are odd in their own way, and then there introduced species, which are so varied in their type and origin that you get the feeling you’ve arrived at the aftermath of a small zoo that escaped. What is surprising is quite how many species did end up here, and how economically unimportant they were.

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Do birds avoid predators because of culture?

10,000 Birds

Most likely, all individuals of a given species have very similar genes guiding very similar developmental processes, but produce different results because the plasticity itself is selected for. Part of that research was to document human avoidance by ground mammals, and that was stark and apparent.

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