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Ecology 2
Page 2 of Crawford Exam 1 notes
17
Biology
Undergraduate 3
09/27/2014

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Term
Osprey, Prothonotary warbler
Definition
A 23-year-long-term ecological study (must studies are short term)

"Prothonotary" name = comes from vatican registrar who wore golden robes

Their habitat destruction led to a decline of the population

Summer = North America, migrate to South America in winter

Researchers built nest boxes = led to lower predation and increased population
Term
IBA
Definition
Important bird area
Term
LTER
Definition
Long term ecological research
Term
Daniel Janzen
Definition
He studied "guanacaste trees" in Costa Rica and questioned why it yields so much fruits

Studied the natural history (how organisms in a particular area are influenced by factors such as climate, soils, predators, competitors, and evolutionary history)

recognized the critical role of seed dispersers (mostly large herbivorous animals)

Humans overhunting became a factor as well
Term
Biome
Definition
Distinguished by predominant plants and the climates
Term
Global Energy Balance
Definition
Energy in = energy out

Sun drives the climate
Term
Global energy input
Definition
30% of sunlight is reflected by reflected by atmosphere and ice

70% absorbed in atmosphere

insignificant absorption by photosynthesis; mostly absorbed as heat

Heat must be dissipated to balance energy input (reradiated at night, convertd to wind, involved in evaporation)

ALL HEAT LEAVES in the form of terrestrial long wave radiation
Term
Earth's climatic variation is due to?
Definition
Caused by uneven heating of its surface by the sun; this is due to spherical shape and angle at which Earth rotates
Term
Autumn and Winter

Spring and Summer
Definition
Earth tilts away from sun

Earth tilts towards the sun
Term
What drives the circulation of atmosphere and patterns of precipitations?
Definition
Heating of the Earth's surface and atmosphere
Term
Coriolis Effect
Definition
Apparent deflection of winds to the right in northern hemisphere and to the left in southern hemisphere; it breaks up air circulations and produces trade winds
Term
Ocean currents are:
Definition
-due to air currents
-due to absorbed solar energy by water
-strongly influenced by continental positions
Term
Regional climate
Definition
-produces distinct biomes
-influenced by atmospheric circulations, ocean currents, topography (pronounced effect on local climate), and vegetation
Term
Temperature rises as...
Definition
the concentration of moisture increases in the atmosphere
Term
Neap Tides
Definition
Minimal gravitational pull when the forces between the moon and the sun oppose each other (lowest high tide and highest low tide)
Term
Spring Tides
Definition
Maximum gravitational pull when the forces of the moon and sun act together (highest high tide and lowest low tide)
Term
Atlantic coast of North America has
Definition
Semi-diurnal tides; two high tides and two low tides of different magnitudes each day
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