What problems arise when a species is introduced from a foreign ecosystem? Why do these problems occur?
What will be an ideal response?
Introducing species into foreign ecosystems "alter(s) community and population ecology relationships such as competition and predation." These problems can occur because an introduced species typically does not have predators, parasites, and/or grazers. A non-native plant may also release chemicals that exclude native species. A non-native species may find the environment favorable for survival but it is unlikely that it fits in the framework of relationships in the new biotic community."
Examples of exotic species include rabbits introduced into Australia, and chestnut blight, Japanese beetles, fire ants, gypsy moth, zebra mussel, kudzu, and spotted knapweed and purple loosestrife introduced into the United States.
You might also like to view...
Briefly describe what is meant by a pioneer species
What will be an ideal response?
High-speed winds can cause ________, clouds of sand moving rapidly near the land surface.
A. deflation B. sand storms C. dust devils D. bajadas E. dust clouds
The supply and demand conditions facing a firm that makes widgets and generates a negative externality by dumping a highly toxic sludge in a nearby river is given in the table below. The equilibrium price and quantity when only private costs are taken into account are
A. Price = $55, Quantity = 30 B. Price = $40, Quantity = 55 C. Price = $30, Quantity = 20 D. Price = $30, Quantity = 80
Anthropogenic means
A. produced by humans. B. produced by natural causes. C. dangerous. D. safe.