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Takahē (Porphyrio hochstetteri)

Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matter (adaptation). You'll also learn what a genetic bottleneck is, and how genetic bottlenecks affect conservation...

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Population Regulation in an Ecosystem

With regard to the population size of a species and what factors may affect them, two factors have been defined. They are the density-dependent factors and the density-independent factors. Find out the differences between the two in this tutorial. Know how these factors affect populations in an ecosystem...

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New Zealand’s Unique Geographical History

Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This lesson introduces the country's endemic species, ecology, and geology. Learn why long periods of geographical isolation have led to a large number of endemic species - native species that are not found anywhere else...

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Population Growth and Survivorship

This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly genetic variations, natural selection, genetic drift, genetic migration, and speciation...

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New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of some endemic species in these ecosystems...

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Ecology & Biodiversity: New Zealand Flora & Fauna

New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away from the supercontinent Gondwana about 80 million years ago, it has developed a distinct flora and fauna as a result of long geological isolation. Thus, many fascinating plants and animals are found nowhere else but in New..

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