Bio ch 22 - Google Docs PDF

Preview

Summary

Download Bio ch 22 - Google Docs PDF

Description

-

Resource partitioning (sharing) minimizes competition

Invasive Species: - Limited amount of predators - No limitation of when the grow -

Can have a negative impact on human health cause annoyance, disc death Causes agricultural problems Can increase the cost of business (interferes with electric power, wate shipping) Can out compete native species, influences habitat of native species longer live there, increase fires

Highly Visible Invasives: - Feral Cats: Introduced for rat control on all islands, in all habitats. Tra and prey on native birds - Mongoose: introduced for rat control, voracious hunters of native wild - Giant centipede: Accidentally introduced, human health problems, pre insects - Buffel Grass: introduced for forage for cattle, common in dry coastal a - Fire adapted: high fuel load Cascading Effects: - Feral Pigs: Root up native tree ferns - Open up space for other plants (could create room for invasive - Rotting trunks provides mosquito breeding habitat - Mosquitoes → spreading avian malaria to native birds - Another example with pigs - Pigs dig up roots, destabilize soil - Sediment runoff after heavy rains - Sediment smothers corals Controlling Invasive Species

Biocontrol Fail: - Myna Bird: imported to control armyworms → compete with native bir - Hawaii has no native reptiles Restoration Project → Ka’ena Point - Number of native species that live there -...