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The North European megafauna that existed after the latest
glaciation went extinct as man spread across the continent.
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The shift from hunting to agricultural societies, that may
sustain many more people, has dramatic environmental consequences.
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Earlier selection was used to improve genetic properties of
domesticated plants and animals. Today it is possible to genetically modify
organisms in the lab.
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Species introduced from remote areas may become invasive.
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Species invasions may lead to loss of biodiversty.
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Pests and weeds are common in agricultural societies.
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Biodiversity is a scientific term related to the richness of
species
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Biodiversity could be measured on the species level, the
within-species level and on gene level.
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The Red Data Book is a registration, classification and
description of species at risk.
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There are several strategies to preserve biodiversity
