AP Environmental Science Flashcards: Ecological Tolerance

What this deck covers

This deck focuses on Ecological Tolerance, giving you a quick way to review the definitions, rules, and examples that matter most for AP Environmental Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What is an example of a limiting factor in ecological tolerance?

Answer: Temperature can be a limiting factor. Common abiotic factor that restricts species distribution patterns.

Flashcard 2: How does ecological tolerance affect population dynamics?

Answer: Tolerance limits can influence population size and distribution. Tolerance determines population carrying capacity and distribution.

Flashcard 3: How do organisms adapt to changes in their ecological tolerance range?

Answer: Organisms adapt through genetic changes or phenotypic plasticity. Evolutionary and physiological mechanisms expand environmental tolerance.

Flashcard 4: How does ecological tolerance affect population dynamics?

Answer: Tolerance limits can influence population size and distribution. Tolerance determines population carrying capacity and distribution.

Flashcard 5: How does ecological tolerance relate to biodiversity?

Answer: Tolerance affects species' distribution and interactions, influencing biodiversity. Tolerance ranges determine species coexistence and community structure.

Flashcard 6: What is the impact of exceeding a species' range of tolerance?

Answer: Exceeding can lead to stress, reduced fitness, or death. Operating beyond limits causes physiological dysfunction.

Flashcard 7: Describe the relationship between tolerance range and adaptation.

Answer: Species adapt over time to expand or maintain their tolerance range. Evolution shapes tolerance through natural selection pressures.

Flashcard 8: What happens to a species outside its ecological tolerance range?

Answer: Outside its tolerance range, a species may suffer stress, injury, or death. Exceeding tolerance limits causes physiological dysfunction or mortality.

Flashcard 9: What is the significance of understanding ecological tolerance in conservation?

Answer: It helps in protecting species under changing environmental conditions. Guides conservation strategies under environmental change scenarios.

Flashcard 10: What is ecological tolerance?

Answer: Ecological tolerance is the range of conditions a species can endure before injury or death. Defines the survivable environmental limits for organisms.

Flashcard 11: What is the relationship between ecological tolerance and habitat range?

Answer: A species' habitat range is determined by its ecological tolerance. Tolerance limits define where species can successfully establish populations.

Flashcard 12: What happens to a species outside its ecological tolerance range?

Answer: Outside its tolerance range, a species may suffer stress, injury, or death. Exceeding tolerance limits causes physiological dysfunction or mortality.

Flashcard 13: Define 'limiting factor' in the context of ecological tolerance.

Answer: A limiting factor restricts the growth or survival of an organism. Environmental factor that constrains organism distribution or abundance.

Flashcard 14: Define 'physiological optimum'.

Answer: The range of conditions where organisms function best. Optimal physiological performance zone within tolerance range.

Flashcard 15: What can prolonged exposure to suboptimal conditions cause?

Answer: Prolonged exposure can lead to stress, reduced reproduction, or death. Chronic stress outside optimum conditions reduces organism fitness.

Flashcard 16: How do organisms adapt to changes in their ecological tolerance range?

Answer: Organisms adapt through genetic changes or phenotypic plasticity. Evolutionary and physiological mechanisms expand environmental tolerance.

Flashcard 17: Name a factor that can limit the distribution of a species.

Answer: Temperature is a factor that can limit distribution. Abiotic factor commonly limiting species geographic distribution.

Flashcard 18: How does salinity influence marine organisms' tolerance?

Answer: Salinity affects osmotic balance, influencing tolerance in marine organisms. Disrupts cellular water balance essential for marine life survival.

Flashcard 19: What is the effect of crossing an organism's tolerance threshold?

Answer: Crossing the threshold can result in physiological stress or mortality. Exceeding limits triggers stress responses or lethal conditions.

Flashcard 20: What role does light play in ecological tolerance for plants?

Answer: Light influences photosynthesis, affecting plants' ecological tolerance. Essential for energy production and growth in photosynthetic organisms.

Flashcard 21: What is the difference between optimum range and tolerance range?

Answer: Optimum range is where species thrive most; tolerance range includes all survivable conditions. Optimum is best conditions; tolerance includes all survivable extremes.

Flashcard 22: Define 'physiological optimum'.

Answer: The range of conditions where organisms function best. Optimal physiological performance zone within tolerance range.

Flashcard 23: What is a consequence of ecological tolerance being exceeded by environmental stressors?

Answer: Organisms may experience decreased survival and reproduction rates. Stress beyond tolerance reduces fitness and population viability.

Flashcard 24: What factors can influence a species' ecological tolerance?

Answer: Temperature, pH, salinity, and light are factors affecting ecological tolerance. Key abiotic factors that determine species survival limits.

Flashcard 25: What role does ecological tolerance play in species interactions?

Answer: Tolerance influences competition, predation, and symbiosis among species. Tolerance overlap determines species coexistence and competition.

Flashcard 26: How does salinity influence marine organisms' tolerance?

Answer: Salinity affects osmotic balance, influencing tolerance in marine organisms. Disrupts cellular water balance essential for marine life survival.

Flashcard 27: What is the significance of understanding ecological tolerance in conservation?

Answer: It helps in protecting species under changing environmental conditions. Guides conservation strategies under environmental change scenarios.

Flashcard 28: What is an example of a limiting factor in ecological tolerance?

Answer: Temperature can be a limiting factor. Common abiotic factor that restricts species distribution patterns.

Flashcard 29: What is the 'zone of intolerance'?

Answer: Zone of intolerance is where conditions are lethal to the species. Environmental extremes incompatible with organism survival.

Flashcard 30: Define 'zone of physiological stress'.

Answer: Zone of physiological stress is where organisms survive but do not thrive. Marginal conditions where survival occurs with reduced fitness.

Flashcard 31: Define the term 'range of tolerance'.

Answer: Range of tolerance refers to the range of environmental conditions a species can survive. Encompasses all environmental parameters within survivable limits.

Flashcard 32: Identify the zone where a species experiences optimal growth and reproduction.

Answer: The zone of optimum range. The ideal environmental conditions for maximum organism performance.

Flashcard 33: State the importance of understanding ecological tolerance in ecosystem management.

Answer: It aids in predicting species responses to environmental changes. Essential for predicting ecosystem responses to environmental change.

Flashcard 34: What is the term for the optimal environmental condition for a species?

Answer: The optimal condition is referred to as the 'optimum range'. The zone where species experience maximum fitness and reproduction.

Flashcard 35: State the importance of understanding ecological tolerance in ecosystem management.

Answer: It aids in predicting species responses to environmental changes. Essential for predicting ecosystem responses to environmental change.

Flashcard 36: What is the impact of exceeding a species' range of tolerance?

Answer: Exceeding can lead to stress, reduced fitness, or death. Operating beyond limits causes physiological dysfunction.

Flashcard 37: How does ecological tolerance relate to biodiversity?

Answer: Tolerance affects species' distribution and interactions, influencing biodiversity. Tolerance ranges determine species coexistence and community structure.

Flashcard 38: What factors can influence a species' ecological tolerance?

Answer: Temperature, pH, salinity, and light are factors affecting ecological tolerance. Key abiotic factors that determine species survival limits.

Flashcard 39: How does pH level affect an organism's ecological tolerance?

Answer: pH affects enzyme activity and metabolic processes, influencing tolerance. Acidity affects protein structure and cellular chemistry.

Flashcard 40: What is a consequence of ecological tolerance being exceeded by environmental stressors?

Answer: Organisms may experience decreased survival and reproduction rates. Stress beyond tolerance reduces fitness and population viability.

Flashcard 41: Name a factor that can limit the distribution of a species.

Answer: Temperature is a factor that can limit distribution. Abiotic factor commonly limiting species geographic distribution.

Flashcard 42: How does temperature affect ecological tolerance?

Answer: Temperature affects metabolic rates and survival, influencing ecological tolerance. Controls enzyme function and cellular processes critical for survival.

Flashcard 43: How might climate change affect species' ecological tolerance ranges?

Answer: Climate change may shift or shrink tolerance ranges, affecting survival. Changing climate alters environmental parameters beyond current tolerances.

Flashcard 44: What role does light play in ecological tolerance for plants?

Answer: Light influences photosynthesis, affecting plants' ecological tolerance. Essential for energy production and growth in photosynthetic organisms.

Flashcard 45: What is the difference between optimum range and tolerance range?

Answer: Optimum range is where species thrive most; tolerance range includes all survivable conditions. Optimum is best conditions; tolerance includes all survivable extremes.

Flashcard 46: Identify the zone where a species experiences optimal growth and reproduction.

Answer: The zone of optimum range. The ideal environmental conditions for maximum organism performance.

Flashcard 47: What is the effect of pollutants on ecological tolerance?

Answer: Pollutants can narrow the range of tolerance, affecting survival. Toxins reduce environmental tolerance and survival capacity.

Flashcard 48: What is the significance of the 'zone of intolerance'?

Answer: It indicates conditions lethal to species survival. Represents environmental extremes incompatible with life processes.

Flashcard 49: What is the effect of pollutants on ecological tolerance?

Answer: Pollutants can narrow the range of tolerance, affecting survival. Toxins reduce environmental tolerance and survival capacity.

Flashcard 50: How might climate change affect species' ecological tolerance ranges?

Answer: Climate change may shift or shrink tolerance ranges, affecting survival. Changing climate alters environmental parameters beyond current tolerances.

Flashcard 51: In what ways can human activities impact ecological tolerance?

Answer: Pollution, habitat destruction, and climate change can alter tolerance. Human impacts modify environmental conditions affecting species survival.

Flashcard 52: What is the significance of the 'zone of intolerance'?

Answer: It indicates conditions lethal to species survival. Represents environmental extremes incompatible with life processes.

Flashcard 53: What is the 'zone of intolerance'?

Answer: Zone of intolerance is where conditions are lethal to the species. Environmental extremes incompatible with organism survival.

Flashcard 54: Define 'zone of physiological stress'.

Answer: Zone of physiological stress is where organisms survive but do not thrive. Marginal conditions where survival occurs with reduced fitness.

Flashcard 55: What role does ecological tolerance play in species interactions?

Answer: Tolerance influences competition, predation, and symbiosis among species. Tolerance overlap determines species coexistence and competition.

Flashcard 56: What can prolonged exposure to suboptimal conditions cause?

Answer: Prolonged exposure can lead to stress, reduced reproduction, or death. Chronic stress outside optimum conditions reduces organism fitness.

Flashcard 57: What is the effect of crossing an organism's tolerance threshold?

Answer: Crossing the threshold can result in physiological stress or mortality. Exceeding limits triggers stress responses or lethal conditions.

Flashcard 58: How does genetic variation contribute to ecological tolerance?

Answer: Genetic variation enables adaptation to diverse environmental conditions. Genetic diversity provides raw material for environmental adaptation.

Flashcard 59: What is the relationship between ecological tolerance and habitat range?

Answer: A species' habitat range is determined by its ecological tolerance. Tolerance limits define where species can successfully establish populations.

Flashcard 60: What is ecological tolerance?

Answer: Ecological tolerance is the range of conditions a species can endure before injury or death. Defines the survivable environmental limits for organisms.

Flashcard 61: In what ways can human activities impact ecological tolerance?

Answer: Pollution, habitat destruction, and climate change can alter tolerance. Human impacts modify environmental conditions affecting species survival.

Flashcard 62: What is the term for the optimal environmental condition for a species?

Answer: The optimal condition is referred to as the 'optimum range'. The zone where species experience maximum fitness and reproduction.

Flashcard 63: How does temperature affect ecological tolerance?

Answer: Temperature affects metabolic rates and survival, influencing ecological tolerance. Controls enzyme function and cellular processes critical for survival.

Flashcard 64: How does pH level affect an organism's ecological tolerance?

Answer: pH affects enzyme activity and metabolic processes, influencing tolerance. Acidity affects protein structure and cellular chemistry.