10 JUN 2011 by ideonexus

 Don't Descriminate Against Species Just Because They are ...

Most human and natural communities now consist both of long-term residents and of new arrivals, and ecosystems are emerging that never existed before. It is impractical to try to restore ecosystems to some ‘rightful' historical state. For example, of the 30 planned plant eradication efforts undertaken in the Galapagos Islands since 1996, only 4 have been successful. We must embrace the fact of ‘novel ecosystems' and incorporate many alien species into management plans, rather than try to ...
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Invasive species are everywhere and they cannot be undone, what's important is how a species interacts with its environment.

09 JUN 2011 by ideonexus

 Invasive Species Between the Old and New World

Many plants new to North America first sprouted up alongside wharves and shipyards. From there they made their way inland along new roads hacked out of the wilderness, and later along canals and railroad embankments, taking up residence in any sort of disturbed soil. Native plants adapted to quiet precolonial forests and meadows gave little competition to the aggressive intruders. As Pilgrims and Puritans leveled the ancient New England forests, their floral co-colonists thrived in a landscap...
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How plants came across the sea in both directions to colonize North American and, to a lesser degree, Europe.