Biotic+Factors

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Biotic factors are the living components that make up an ecosystem.

1. **Disease** - Disease impacts Arthur's Pass just like it impacts any other ecosystem. If disease occurs, and therefore spreads, organisms can become endangered, or possibly wiped out completely. Also, disease in organisms comes back to affect humans because our interaction with animals could possibly lead to a disease spreading through humans. 2. **Migration/Immigration** - This factor is huge in Arthur's Pass because a lot of the endangered species have become endangered due to immigration. Migration doesn't really occur that often because most organisms have adapted to their environments surroundings. However, when new animals were introduced to the area of Arthur's Pass National Park, these animals became predators, and now eat most of the endemic species. 3. **Predation** - Predation is another factor that affects mostly every ecosystem. Without predation, the population of organisms would explode and that wouldn't be healthy. On the other hand, with too much predation species become endangered and possibly extinct. 4. **Living Space** - Space really isn't a huge factor in Arthur's Pass National Park because there is so much land. New Zealand in general has a lot of open land due to sheep farming. This is a benefit because populations of species aren't crammed into an area and therefore don't suffer shortage of food.