Ecological Tolerance - AP Environmental Science

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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