Card Set Information
What is a biome?
A major division of the terrestrial environment distinguished by the predominant plant growth form and associated with a particular climate
Biomes disregard species composition
What is solar radiation?
Atmosphere molecules absorb sunlight
Describe Hadley cells.
Warm air rises and cools, dropping rain
Cool air is pushed towards the pulls
Dense, dry air descends, and absorbs moisture
There are three circulation cells in both hemispheres
Ecology is the study of all the complex interrelations referred to by Darwin as the conditions for the struggle for existence
-Ology (Study of)
Defined by Ernst Haeckel 1866
Describe the Rain Shadow effect.
Moisture-laden air blows onshore from Pacific Ocean (west)
Air rises over mountains, cools, and rain falls
On the East side dry air creates dessert conditions (This side is in rain shadow)
What factors are important for aquatic systems?
Salt vs Fresh water
Describe Intertidal Zone.
Where you swim
Adapted to surf attachment structures
Able to deal with desiccation
Describe Neritic Zone
Tropics - Coral reefs, warm water,
Temperate regions - Kelp Forests, cold water, Sea Otters
Where you scuba dive
Describe Oceanic Zone.
Most life is near surface
Contains Phytoplankton, Nekton
Fascinating bottom dwellers
Where is the Benthic Zone?
Contains decomposing organisms on floor
Where is the Photic Zone?
Thin zone over the top where light can still be seen through
Where is the Aphotic Zone?
Deep where light can no longer be seen from the surface
What is an Estuary?
Where freshwater meets saltwater
Variable salinity with tides and rainfall
Rich in nutrients
Salt tolerant vegetation
Often bordered by coastal wetlands
What are nurseries?
Located in estuaries
Fish swim in, lay eggs, and swim out for protection
Oysters, crabs, and many fish
What are the two freshwater systems?
Flowing systems (Rivers) - Lotic
Sitting systems (Lakes) - Lentic
What are the lake zones?
Littoral - Close to shore
: Macrophytes, snails, crayfish, insects, amphibians and small fish
Limnetic - Away from shore
: Primary production of phytoplankton, Larger fish
What are the differences between headwater streams and large rivers?
Decrease flow (gradient)
Differences in bed make up (Rocky vs Silt)
Answers the "How" question
Answers the "Why"
What is fixed action pattern (FAP)?
Ex. Once a goose decides to do something it has to do that before anything else
Most behavior is Flexible and conditional dependent not like FAP
Behavior is often a mix of ____ and _____?
innate and learned