Adaptation to environment explains how abiotic conditions, tolerance ranges, habitats and biomes shape organism survival, distribution and specialised traits over time.
Coverage 2010–2025 · Updated 15 Jul 2026
• Habitat is the place where an organism, population, species, or community lives
• Habitat descriptions can include geographic location, physical position, and ecosystem type
• Microhabitats are small areas with conditions different from the surrounding habitat
• Adaptations improve survival under abiotic conditions such as water availability, salinity, oxygen, and wind
• Marram grass has rolled, hairy leaves and thick cuticle to reduce water loss in dunes
• Mangroves use aerial roots, pneumatophores, salt exclusion, or salt excretion in saline low-oxygen swamps
• Species distribution depends on abiotic variables such as temperature, salinity, pH, light, rainfall, humidity, and substratum
• Limiting factors can restrict survival, growth, reproduction, or activity by deficiency or excess
• Plant limiting factors include light, water, nutrients, carbon dioxide, and temperature
• A range of tolerance lies between critical minimum and maximum limits
• The optimum zone supports highest survival, growth, abundance, and reproduction
• Zones of stress and intolerance explain reduced abundance or absence along environmental gradients
• Coral reefs need warm, shallow, clear, sunlit, saline water with suitable pH
• Reef-building corals rely on photosynthetic symbiotic algae
• Low nutrients, sediment, cold water, or reduced light can limit reef formation
• Terrestrial biome distribution is mainly determined by temperature, rainfall, and insolation
• Productivity depends strongly on water availability and photosynthesis rate
• Latitude and seasonal variation help explain rainforest, temperate forest, taiga, grassland, tundra, and desert distribution
• Biomes are groups of ecosystems with similar communities due to similar abiotic conditions
• Similar biomes can evolve similar forms through convergent evolution
• Examples include tropical rainforest, temperate forest, taiga, grassland, tundra, and hot desert
• Hot desert strategies include expire, evade, or endure under heat and water scarcity
• Camels, cacti, scorpions, and kangaroo rats show water-saving, heat-avoidance, or storage adaptations
• Tropical rainforest adaptations include pitcher plant nutrient capture, gibbon brachiation, flying lizard gliding, and orchid mantis mimicry
