Succession
this mechanism of succession states that only certain species can colonize (pioneers), which modify environment
facilitation
secondary succession
an interacting group of various species in a common location at the same time
community
this concept organizes large-scale ecological variation
the biome concept
the time that has elapsed since an organism's death
post-mortem interval (PMI)
this type of succession occurs on newly exposed sterile geological substrates not yet modified by organisms
primary succession
the study of interactions among groups of coexisting species and their abiotic environment
community ecology
two main ways that terrestrial biomes are determined
temperature and rainfall
the succession model predicts PMI because 'waves' of this type of organism colonize the corpse at specific times
insects
this type of community is made up of very first species to colonize an area in successional sequence
pioneer community
the ability of a community to defy change OR rebound from change
community stability
the way that terrestrial biomes are distinguished
predominant vegetation
this mechanism of succession states that initial colonization is not limited to pioneers, and that any species can start the succession. Later successional species are those tolerant of environmental conditions occurring in succession.
tolerance
early arrivals modify environment that inhibits the establishment of the later species/arrivals. No species in this model is competitively superior to another; whoever colonizes first, holds it against all comers until it dies
inhibition
this is the term for each stage of change in succession
sere
this acronym describes soil horizons
OABC