Use This Example to Answer the Question

question 29

Multiple Choice

Use this example to answer the question.On an island in the South Pacific,there is a population of 1,000 South Pacific Splendor Birds.There is no immigration or emigration but there are 40 births and 20 deaths per year.
-The annual percentage rate of this population is

• A)0)02%.
• B)2)0%.
• C)20%.
• D)-0.02%.
• E)-2%.

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Definitions:

Exotic Species

Species that are introduced to a new environment where they do not naturally occur, often leading to environmental changes and potentially becoming invasive species.

Keystone Species

This term refers to a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the ecosystem is disproportionately large relative to its abundance.

Pioneer Species

First organisms to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more biodiverse steady-state ecosystem.

Invasive Species

Non-native species that spread rapidly in a new ecosystem, often causing harm to native species and their habitats.