Organisms, Vegetation & Classification Flashcards
Respiration is…
PS in reverse
Vegetation determines the distribution of organisms: (4)
Provides food.
Provides a structural habitat.
PS produces oxygen, required for respiration.
Animals depend on plants for energy and materials needed to maintain their bodies.
Equation for PS:
Light energy ☀️ + 6CO2 + 6H2O ➡️ C6 H12 O6 + 6O2
Taxonomy is the naming and
Classification of organisms/plants into groups, intended to reflect evolutionary relationships.
Photocists include:
Plants, animals and fungi.
The taxonomic hierarchy of classification: (7)
Kingdoms ➡️ phyla/phylum ➡️ classes ➡️ orders ➡️ families ➡️genra ➡️ species.
Community classification tends not to alter because of short term changes, such as weather or land management, however the
Abundance in species may change.
In the floristic frequency table, the
Letter corresponds with the broad habitat type.
The NVC system identifies
Groups of species that occur together regularly.
In the NVC system, vegetation is divided into
Broad community types, each has a short code assigned.
A stand is a
Block of vegetation that appears to be uniform in its compesition.
Constants are
Species found frequently in a stand.
Associates are
Found in stands at a lower frequency. They are not characteristic of the stand and are more common in others.
Preferentials define a
Sub community, species occur frequently in a particular sub community, but infrequently in others.
Global vegetation change as a response to climate change:
Based on models; the distribution of boral forest will move north and replace most of the existing tundra.