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. 2021 Mar 31;85(2):e00026-20. doi: 10.1128/MMBR.00026-20

TABLE 1.

Glossary terms

Term Definition Reference(s)
Bayesian Based on Bayes’ theorem that describes the probability of an event based on prior knowledge of conditions that might be related to the event 152
Community assembly
 Coalescence An emerging paradigm unique to microorganisms that considers the wholesale mixing of multiple communities and their surrounding environments, which can occur on a regular or intermittent basis and within a short period of time 96
 Community Group of organisms representing multiple species living in a specified place and time 29
 Dispersal The movement of organisms across space 29
 Diversification Changing phylogenetic diversity resulting from genetic and environmental variabilities 153
 Drift Random changes in the relative abundance of species due to chance variation amongst individuals 29
 Priority effect The order and timing of species immigration during community assembly can affect community composition 154
 Selection A deterministic fitness difference between individuals of different species in response to local abiotic and biotic conditions 29
 Speciation The creation of new species 29
Disturbance A discrete unpredictable event that causes direct removal of living biomass, thereby altering community structure 155
 Compounded disturbance Multiple disturbances, either simultaneously or more frequent than the normal recovery time 111
 Press disturbance Transient, acute; relatively long-term, continuous event 16, 117
 Pulse disturbance Persistent, chronic; relatively discrete, short-term event 16, 117
 Perturbation Change in the level of function or population of a system due to a disturbance 24
Ecological network Representation of possible links between species (nodes) within an ecosystem 73
 Network connectance Proportion of possible links between species (nodes) that are realized 156
 Network modularity The tendency of a network to be compartmented into separated clusters of interacting nodes 157
 Niche filtering A concept whereby the environment functions like a filter (or sieve) removing all species lacking specified combinations of traits 158
 Node centrality A measure of the importance of the node within the network 73
Ecosystem function The biological, geochemical, and physical processes that take place or occur within an ecosystem 159
 Functional redundancy Where multiple species representing a variety of taxonomic groups can share similar roles in providing ecosystem functions 160
 Multifunctionality The ability of an ecosystem to provide multiple functions 161
Mycorrhizal fungi Fungi forming a symbiotic association with plants 162
Resilience
 Ecological resilience Measure of disturbance required to move system from one stable state to another 17
 Engineering resilience Rate of recovery towards postdisturbance state 17
 Resistance Initial ability of a system to withstand disturbance 17
 Stability Inherent property of a system to remain unchanged in response to disturbance. Combines resistance, recovery, (engineering) resilience, and temporal stability 17, 25, 26
 Temporal stability The inverse of the variability around functional and compositional trajectories during the recovery phase 26
Rhizodeposition The release of organic compounds from plant roots into the surrounding environment 163
Succession
 Autogenic Ecological succession driven by biotic factors 164
 Secondary Succession that follows a disturbance 165