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 |