VII. PLANTS IN ECOSYSTEMS
A. ABIOTIC FACTORS AFFECTING INDIVIDUAL PLANTS
1. REGULATING FACTORS
2. RESOURCES
B. ABIOTIC FACTORS AFFECTING VEGETATION PATTERNS
1. GLOBAL BIOMES
C. PLANTS AS PRIMARY PRODUCERS
1. ECOSYSTEM STRUCTURE
2. FOOD CHAINS
REGULATING FACTORS
TEMPERATURE
HUMIDITY
WIND
LIGHT QUALITY
LIGHT AVAILABILITY
SOIL CHEMISTY
SOIL STRUCTURE
SALINITY
WATER AVAILABILITY
RESOURCES
LIGHT
WATER
CARBON DIOXIDE
OXYGEN
MACRONUTRIENTS
(1000 mg / kg dry matter)
MICRONUTRIENTS
(100 mg / kg dry matter)
RESOURCES
MACRONUTRIENTS
Oxygen, Calcium, Carbon, Magnesium, Hydrogen, Sulfur,
Nitrogen (leaves)
Potassium (shoots)
Phosphorus (roots)
MICRONUTRIENTS
Chlorine, Zinc, Iron, Copper, Boron, Molybdenum, Manganese, Nickel
VEGETATION PATTERNS
CLIMATE IS A FUNCTION OF
PRECIPITATION (WATER)
TEMPERATURE
SEASONALITY
BIOME
A MAJOR BIOTIC COMMUNITY
CLASSIFIED BY
PREDOMINANT VEGETATION
STRUCTURE & COMPOSITION
CHARACTERIZED BY
ADAPTATIONS OF DOMINANT ORGANISMS
PLANTS AS PRIMARY PRODUCERS
ECOSYSTEM
A COMMUNITY OF ORGANISMS
PLUS THEIR NONLIVING ENVIRONMENT
A SYSTEM OF EXCHANGE OF ENERGY & MATTER
ECOLOGICAL PYRAMIDS
PYRAMID OF PRODUCTIVITY
PYRAMID OF NUMBERS
PYRAMID OF BIOMASS
FOOD CHAIN OR FOOD WEB
PATTERN OF FLOW OF ENERGY & MATTER COMPOSED OF TROPHIC LEVELS
PLANTS AS PRIMARY PRODUCERS
PRIMARY PRODUCTION
RATE OF CONVERSION BY AUTOTROPHS OF LIGHT OR NONORGANIC CHEMICAL ENERGY
TO CHEMICAL ENERGY OF ORGANIC COMPOUNDS
NET PRIMARY PRODUCTION
TOTAL (GROSS) PRIMARY PRODUCTION MINUS
ENERGY USED BY PRODUCERS FOR SELF-MAINTENANCE
EQUALS ENERGY AVAILABLE TO CONSUMERS
FOOD CHAIN ELEMENTS
PRIMARY PRODUCERS
AUTOTROPHS = ENERGY GATHERERS
LEVEL CONTAINS GREATEST ENERGY & BIOMASS
PRIMARY CONSUMERS
HETEROTROPHS
EAT PRODUCERS
"HERBIVORES"
SECONDARY CONSUMERS
HETEROTROPHS
EAT PRIMARY CONSUMERS
"CARNIVORES"
TERTIARY CONSUMERS
HETEROTROPHS
EAT OTHER CARNIVORES
TOPIC 5 - PLANTS IN ECOSYSTEMS
READINGS: PAGES 714 - 717; 1028 - 1030; 1042 - 1043; 1134 - 1138
FIGURES
: 37.1, 37.8; 50.3; 50.15; 54.1; 54.2; 54.3; 54.4; 54.5; 54.7; 54.10; 54.11; 54.12; 54.16.TABLE 37.1
Glossary - biological magnification, biome, biomass, ecosystem, food chain or web, macronutrient, micronutrient, gross primary productivity, net primary productivity, nutrient cycle, primary consumer, primary producer, regulating factors resources, secondary consumer, succession.