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Biology
Biomes and Succession Notes
Name_________
Biome: a large region characterized by a specific type of __________and certain types
of plant and animal communities.
Terrestrial Biomes Examples
-______________________
-___________________
-___________________
-___________________
-Temperate Deciduous Forest
-Temperate Grassland
-___________________
CLIMATE: The average weather conditions in an area, including ____________and
__________________.
Classifying different terrestrial biomes is generally based on criteria such as:
1.
2.
3.
4.
Aquatic Biomes Examples
-________________ (Including Open Ocean, Coral Reef, Deep Ocean)
-________________ (Ponds and Lakes, Streams and Rivers, & Wetlands)
-________________
-_________________ Zones/Coastal
Marine Biomes
-Usually have ___________ (saline) concentrations around __________
-Marine Algae/Photosynthetic Bacteria supply the majority of the world’s
______________
-Largest consumer of __________________ ____________
Freshwater Biomes
-Usually have ____________ concentration <___________
-Closely linked to ____________ composition and _______________ components
-Characteristics include pattern/speed of water ____________, depth and light, and
climate
Estuaries
-Partially enclosed body of water where a ______________(s) meets the _____________
-Subject to both river and marine influences (freshwater and ______________ with tide
and _________________)
-Delicate and diverse ecosystem
-Acts as a natural water _____________
Intertidal Zone
-Area that is ______________ water at low tide and under water at ____________ tide
-Variety of organisms adapted to harsh _________________
-Vary from wetland to sandy beaches to rocky cliffs
-Also called “___________________”
Succession
-Series of predictable _______________ over time that happens when one community
_________________ another as a result of changing abiotic or biotic factors.
-There are two types: _________________ and _________________
Causes:
-Gradual _______________ change (global warming?)
-Sudden ____________ (volcanic eruption, forest fire, humans clearing forests)
Primary Succession
-The establishment of a community on an area of exposed rock that ________
__________ _________ top soil.
-A ______________ process!
-Occurs where no _____________ exists (new rock formations, volcanic areas, early
Earth)
-Starts small with ____________________ Species
-___________ to colonize an ecosystem
-Examples: _____________ and _______________
Climax Community
-A mature community that results when there is little change in the composition of
species. The end result of primary succession.
-It takes a very long time for the climax community to be reached.
-Sometimes it is ______________ reached.
-Does not always mean big __________ (Depends on climate of a region)
-___________ in prairies
-___________ in deserts
Secondary Succession
-More common
-Occurs after a disturbance like __________________________ where soil already
existed (a fire or flood or a ____________ is abandoned)
-Returns ecosystem to _______________ state
-Since soil is already present, _______________ start to grow right away. These are
replaced by shrubs and trees
-This takes about ________________ years to complete.