Biological Diversity , biodiversity definition, biodiversity articles, ecosystem : Biodiversity is a degree of variation of life forms within a given ecosystem, biome, or the entire planet. Biodiversity is a measure of ecosystem health. Greater biodiversity implies greater health. Biodiversity is partly a function of climate. In terrestrial habitats, whereas the tropics are usually rich in polar areas support fewer species.
Rapid environmental changes usually cause mass extinctions. One estimate is that the reduced 1% of existing species on Earth that still exist today.
Since life began on earth, large mass extinctions and several small events have caused major changes and suddenly in biodiversity. Phanerozoic Eon (the last 540 million years old) indicated a rapid growth in biodiversity through the Cambrian explosion-a period in which nearly every phylum of multicellular organisms first appeared. 400 million next year, including repeated, loss of biodiversity are classified as mass extinction events. In Carbon, rainforest collapses causing great losses of plant and animal life of the Permian-Triassic extinction event, 251 million years ago, was the worst Recovery time 30 million years of vertebrate The most recent, the Cretaceous-Tertiary extinction event, occurred 65 million years ago, and has often attracted more attention than others because it resulted in the extinction of animal-like dinosaur ancient heawn.
The period since the emergence of humans have shown a reduction of biodiversity and loss of genetic diversity that accompanies it. Called the Holocene extinction, the reduction is caused primarily by human impact, especially habitat destruction. In contrast, biodiversity affects human health, either positively or negatively.
Rapid environmental changes usually cause mass extinctions. One estimate is that the reduced 1% of existing species on Earth that still exist today.
Since life began on earth, large mass extinctions and several small events have caused major changes and suddenly in biodiversity. Phanerozoic Eon (the last 540 million years old) indicated a rapid growth in biodiversity through the Cambrian explosion-a period in which nearly every phylum of multicellular organisms first appeared. 400 million next year, including repeated, loss of biodiversity are classified as mass extinction events. In Carbon, rainforest collapses causing great losses of plant and animal life of the Permian-Triassic extinction event, 251 million years ago, was the worst Recovery time 30 million years of vertebrate The most recent, the Cretaceous-Tertiary extinction event, occurred 65 million years ago, and has often attracted more attention than others because it resulted in the extinction of animal-like dinosaur ancient heawn.
The period since the emergence of humans have shown a reduction of biodiversity and loss of genetic diversity that accompanies it. Called the Holocene extinction, the reduction is caused primarily by human impact, especially habitat destruction. In contrast, biodiversity affects human health, either positively or negatively.
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