Native species, they evolved over millions of years
to cope with climate, soils, seasons and interactions,
with others in the ecosystem.
Accidentally-introduced species
come by various means,
on tires, earth-moving equipment
and in the ballast of ships.
They may just persist close to their sites of escape,
establish so well, they outcompete the native species,
though, the most exotic species are those
deliberately introduced by humans.
A quarter of native plant species are already extinct,
yet, most tropical cities grow the overexploited
Madagascan flame-of-the-forest,
the American rain tree.
with others in the ecosystem.
Accidentally-introduced species
come by various means,
on tires, earth-moving equipment
and in the ballast of ships.
They may just persist close to their sites of escape,
establish so well, they outcompete the native species,
though, the most exotic species are those
deliberately introduced by humans.
A quarter of native plant species are already extinct,
yet, most tropical cities grow the overexploited
Madagascan flame-of-the-forest,
the American rain tree.
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