Definitions
Diversity
Biogeochemistry
Ecological Succession
Community structure
100
When boundaries are broad, with gradual change, they are called ________
ecotones
100
A __________ species is a species that has a disproportionately large effect on its natural environment.
Keystone
100
nutrients supplied by precipitation where water picks up chemicals is known as ________
wet fall
100
grass colonizing newly formed dunes is known as
primary succession
100
A _________ is a group of species
inhabiting a given area and interacting,
directly or indirectly
community
200
Organisms that live at or near boundaries are called
edge species
200
Species ________ is the fundamental measure of biodiversity that counts the total number of different species present in a specific community or ecosystem.
richness
200
_________ can only be cycled from land to sea and is NOT returned to land through the biogeochemical cycle
Phosphorous
200
In early succession _______ factors are usually more important than _______ factors
abiotic, biotic
200
In terrestrial community systems physical structure is primarily a result of what kind of zonation?
Vertical
300
_______ _______ is the full range of environmental conditions and resources in which a species could potentially survive and reproduce (based on their physiology)
Fundamental niche
300
This index is best used to understand dominance.
Simpson's
300
______ has both sedimentary and gaseous phases in its biogeochemical cycle
Sulfur
300
What are the 3 successional strategy types outlined in Grime's triangular model of plant succession?
R, C, and S
300
Climate change can impact physiology and reproduction cues leading drastic behavioral changes for example changing the timing of birds ________ patterns
migratory
400
A species are favored immediately following disturbance.
Ruderal
400
In the rank abundance a steeper slope of community A means it is less _____ than community B
Even
400
The majority of Nitrogen is made available to plants and animals through fixation primarily done by
N2-fixing Bacteria
400
Given MacArthur and Wilson’s Theory of Island Biogeography model, if the island were bigger than this one expressed in the plot what line would it effect and what would the species equilibrium number go up or down?
Extinction line and go up
400
a _______ _______ is a powerful, indirect interaction that occurs when the abundance or behavior of a top predator in a food web significantly alters the population of other species, including primary producers.
trophic cascade
500
The term used for environmental changes resulting from activities of the organisms that are present in a community.
Autogenic
500
Species richness of terrestrial species strongly correlates most with
AET (actual evapotranspiration)
500
This form of nitrogen is gaseous and highly toxic.
Ammonia NH3
500
_________ biome is a type of woodland characterized by dense, spiny shrubs with hot, dry summers and mild, wet winters; often shaped by periodic wildfires and are found in coastal regions worldwide
chapparal
500
Edges support relatively high diversity due to _______ ________
habitat heterogeneity