Intro Flashcards

0
Q

What is the UN-FAO definition of a forest?

A

Area>0.5 ha
Tree canopy cover >10%
Not agriculture
Capable of 5m height

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1
Q

What are 5 attributes of a forest ecosystem?

A
Structure
Interaction 
Function 
Change over time 
Complexity
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2
Q

What is forestry?

A

The science, art and practice of sustainability managing the composition, structure and function of forest ecosystems for many different values.

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3
Q

What is synecology?

A

Study of ecological communities

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4
Q

What is autecology?

A

Study of individual organisms or species.

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5
Q

Define silvics

A

The study of the life history, characteristics and ecology of forest trees

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6
Q

What is silviculture?

A

Branch of forestry concerned with managing and tending a forest.

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7
Q

What are the main components of an ecosystem?

A
Biotic community
-Plant
-Animal 
-Microbial
Abiotic environment
-Atmosphere
-Soil or geological substrate
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8
Q

What does climate determine?

A

The broad biotic potential. Whether the area will be a
-desert
-tundra
-boreal
-temperate
-tropical
What kind of organisms can live in this environment

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9
Q

-What does the physical environment include?

A
  • landform
  • origin of materials
  • minerology

(suitability of substrate, availability of moisture and nutrients.)

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10
Q

What is the difference between population and community?

A

Population: All individuals of a species that constitute a specific group.

Community: An assemblage of different species that occur together in a particular habitat.

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11
Q

What is a species?

A

Related organisms, capable of interbreeding.

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12
Q

What makes up the vertical structure of a forest?

A
Tree
Shrub
Herb
Bryophytes 
Epiphytes
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13
Q

What does horizontal structure refer to?

A

Gaps
Natural Openings
Regenerating Forest

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14
Q

What are some important ecosystem cycles?

A
Hydrologic Cycle
Nitrogen Cycle
Nutrient Cycle
Photosynthesis
Carbon Cycle
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15
Q

Why are primary producers so important?

A

Because they are the at the bottom of the food chain and provide the energy necessary to sustain all trophic levels.

16
Q

What are the levels of the food chain?

A

Primary Producers: plants
Primary Consumers: Herbivores
Secondary Consumers: Predators
Tertiary Consumers: Predators

17
Q

What are two types of ecosystem variation?

A

Spatial: Space

Temporal: Time

18
Q

What are the 3 levels of BEC

A

Regional Scale: largely driven by climate

Local level: mostly based on soils

Chronological level: Temporal ( time based stages )

19
Q

What is primary production? Why is it so important?

A

Primary production is the conversion of solar energy to biomass. This is a primary function of plants and creates a fundamental source of energy for other organisms at higher trophic levels to exist.