What is a keystone species?
Population Ecology - APES

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Science
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10th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance. Its presence or absence can significantly impact the structure and health of the ecosystem.
2.
FLASHCARD QUESTION
Front
Define a population in ecological terms.
Back
A population is all members of one species that live in a specific area at the same time.
3.
FLASHCARD QUESTION
Front
What does carrying capacity refer to in population ecology?
Back
Carrying capacity is the maximum number of individuals of a particular species that an environment can sustainably support.
4.
FLASHCARD QUESTION
Front
What is habitat fragmentation?
Back
Habitat fragmentation is the process by which large, continuous habitats are divided into smaller, isolated patches, often due to human activities.
5.
FLASHCARD QUESTION
Front
Explain the concept of invasive species.
Back
Invasive species are non-native species that spread widely in a new habitat, often causing harm to native species and ecosystems.
6.
FLASHCARD QUESTION
Front
What is biodiversity?
Back
Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species, genetic diversity, and ecosystem diversity.
7.
FLASHCARD QUESTION
Front
What is the difference between density-dependent and density-independent factors?
Back
Density-dependent factors are environmental factors whose effects on a population change as population density changes (e.g., competition, predation). Density-independent factors affect populations regardless of their density (e.g., natural disasters).
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