Understanding Ecological Niches and Succession in Ecosystems
School
Ohlone College**We aren't endorsed by this school
Course
BIOLOGY 51
Subject
Geography
Date
Dec 11, 2024
Pages
1
Uploaded by azhang2163
Exam: Ecology (Version B)Question 1: Explain the concept of an ecological niche.Answer: An ecological niche is the role and position a species has in its environment, including its interactions with other organisms and its use of resources.Question 2: What are keystone species, and why are they important?Answer: Keystone species have a disproportionate impact on their ecosystem. For example, sea otters maintain kelp forest health by controlling sea urchin populations.Question 3: What is primary succession, and how does it differ from secondary succession?Answer: Primary succession occurs in lifeless areas where no soil exists (e.g., volcanic rock). Secondary succession occurs in areas where an ecosystem previously existed but was disturbed (e.g., after a forest fire).
