Environmental Factors in Ecosystems
Environmental Conditions
Key Environmental Factors
Wind: Influences plant transpiration and seed dispersal; can affect temperature and moisture levels.
Humidity: Affects the rate of evaporation and transpiration in plants; high humidity can lead to fungal diseases.
Light: Essential for photosynthesis; different plants have varying light requirements, influencing their distribution.
Air Temperature: Affects metabolic rates in organisms; extreme temperatures can limit species distribution.
Salinity: Important in aquatic ecosystems; affects osmoregulation in organisms and can limit species diversity.
Rainfall: Influences soil moisture and nutrient availability; patterns of rainfall can determine the type of vegetation in an area.
Soil Characteristics
Nutrient Availability: Essential for plant growth; includes macronutrients (N, P, K) and micronutrients (Fe, Mn).
Soil Moisture: Critical for plant health; affects germination, growth, and nutrient uptake.
Soil Composition: Refers to the mineral and organic matter in soil; influences drainage and nutrient retention.
Soil Stability: Affects erosion and the ability of plants to anchor; stable soils support diverse ecosystems.
Biotic Factors (Community Interactions)
Intra-specific Interactions
Definition: Interactions among individuals of the same species.
Mates: Competition for mates can lead to sexual selection, influencing traits within a population.
Rivals: Competition for resources such as food and territory can affect population dynamics.
Competitors: Intra-specific competition can lead to resource partitioning or changes in behavior.
Inter-specific Interactions
Definition: Interactions between individuals of different species.
Food Relationships: Includes predator-prey dynamics; affects population sizes and community structure.
Predators: Influence prey populations; can lead to evolutionary adaptations in prey species.
Parasites: Affect host health and population dynamics; can lead to co-evolution between hosts and parasites.
Competitors: Competition for resources can lead to niche differentiation and biodiversity.