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Questions and Answers
Which ecosystem is characterized by fast-moving waters such as streams and rivers?
Which ecosystem is characterized by fast-moving waters such as streams and rivers?
- Lacustrine Ecosystem
- Riverine Ecosystem (correct)
- Estuarine Ecosystem
- Palustrine Ecosystem
What type of biome is known for being the driest on Earth?
What type of biome is known for being the driest on Earth?
- Desert (correct)
- Taiga
- Grassland
- Tropical Grassland
Which ecosystem is defined by inland wetlands where the soil is saturated for a long period of time?
Which ecosystem is defined by inland wetlands where the soil is saturated for a long period of time?
- Palustrine Ecosystem (correct)
- Riverine Ecosystem
- Estuarine Ecosystem
- Marine Ecosystem
Where are tropical grasslands, also known as savannas, primarily found?
Where are tropical grasslands, also known as savannas, primarily found?
Which terrestrial biome is characterized by a lack of trees and large shrubs but dominated by grasses?
Which terrestrial biome is characterized by a lack of trees and large shrubs but dominated by grasses?
In which aquatic biome does the photic zone receive ample sunlight and have a large proportion of oceanic biomass contributed by plankton?
In which aquatic biome does the photic zone receive ample sunlight and have a large proportion of oceanic biomass contributed by plankton?
What is a key characteristic of a Forest Ecosystem?
What is a key characteristic of a Forest Ecosystem?
Which ecosystem is characterized by annual rainfall less than 25 cm and very little water?
Which ecosystem is characterized by annual rainfall less than 25 cm and very little water?
In which ecosystem can you find Imeprata grasslands and brushlands?
In which ecosystem can you find Imeprata grasslands and brushlands?
What is a defining feature of a Freshwater Ecosystem?
What is a defining feature of a Freshwater Ecosystem?
Which ecosystem has altitude ranging from sea level to 3000 meters above sea level and specific types of soil minerals?
Which ecosystem has altitude ranging from sea level to 3000 meters above sea level and specific types of soil minerals?
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Study Notes
Ecosystem Types
- Natural Ecosystem: includes terrestrial, freshwater, estuarine, marine, and special ecosystems
- Man-made Ecosystem: includes agricultural and urban ecosystems
Terrestrial Ecosystem
- ALTITUDE: ranges from sea level to 3000 meters above sea level
- DOMINANT SPECIES: presence of forest species and endemic/native plants
- SOIL: varies in nutrients and moisture, with different minerals and soil chemistry
- SUBTYPES:
- Forest Ecosystem: high vegetation density, 80-400 cm annual rainfall
- Desert Ecosystem: low rainfall (<25 cm), extreme temperature, intense sunlight
- Mountain Ecosystem/Cloud Forest: high altitude, abundant vegetation
- Grassland Ecosystem: once tropical moist forest, now plantation forest, fine-pron, Imperata grassland, and brushlands
Freshwater Ecosystem
- CLASSIFIED BASED ON: hydrodynamics and geography
- SUBTYPES:
- Riverine Ecosystem (lotic): fast-moving waters, streams, and rivers
- Lacustrine Ecosystem (lentic): still waters, lakes, and ponds
- Palustrine Ecosystem: inland wetlands with saturated soil for long periods
Estuarine Ecosystem
- LOCATION: along shorelines, extending seaward, often near river mouths
- CLASSIFIED BASED ON: dominant species
Marine Ecosystem
- CLASSIFIED BASED ON: dominant species, physical features, and geography
- SUBTYPES:
- Coastal Marine Wetlands: shallow, warm waters flowing from land to continental shelf edge
Special Ecosystem
- HOLLOW SPACES: cavities beneath the earth's surface with one or more openings
- CLASSIFIED BASED ON: mineral deposits and geological formations
Agricultural Ecosystem
- CHARACTERISTICS: croplands with human inputs (fertilizers, irrigation, heating systems, etc.)
Urban Ecosystem
- CHARACTERISTICS: fuel-power ecosystem with trees, plant life, vehicular and industrial activities, and agricultural activities
Biomes
- DEFINITION: Earth's major communities, broad vegetative subdivisions of biogeographic realms
- CHARACTERISTICS: given natural environmental setting
Terrestrial Biomes
- TUNDRA:
- LOCATION: near North Pole
- CHARACTERISTICS: low species diversity, permafrost, lack of complex flora and fauna
- TAIGA:
- CHARACTERISTICS: largest terrestrial biome, northern coniferous forest, cold winters, mild summers, poor soil nutrients
- DESERT:
- CHARACTERISTICS: driest biome, <25 cm annual precipitation, limited vegetation, drought-resistant shrubs and trees
- GRASSLAND:
- CHARACTERISTICS: dominated by grasses, occasional trees and shrubs
- SUBTYPES:
- Tropical Grasslands (Savannas): warm climates, 25-75 cm annual precipitation
- Temperate Grasslands (Prairies, Steppes): no trees and large shrubs
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