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🧼 clean the table
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@TanyaS08
TanyaS08 committed Jul 18, 2024
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Expand Up @@ -28,22 +28,22 @@ Linking structure and function to ecological processes

@delmas2019 gives a somewhat extensive overview of the different ways in which we can 'summarise' network properties (something akin to statistical moments) which is summarised in @tbl-summaries. Importantly we need to acknowledge that these summary statistics are 'retrieved' at different levels of organisation (scale) within the network. For example the in-degree is something that is determined on a by-species level, but connectance is at the network level.

| Summary Statistic (form) | What | Ref | Ecological interpretation (function) | Scale (I like this idea and want to push it further) |
|---------------|---------------|---------------|---------------|---------------|
| Specificity | Related to number of links at the species level | | Measure of (diet) specialisation | Micro (what do species do?) |
| Generaility/vulnerability | Number of prey/predators | @schoener1989 | Position in food web *e.g.,* top/basal species | Micro (what do species do?) |
| In/out degree | Number of predators/prey but in a different context?? | @williams2000 | | |
| Degree distribution | measures the probability (*P(k))* that a species has *k* interactions within the network | | | Micro (what do species do?) |
| Centrality | | | Position of species in network. The idea of hubs... | Macro (how does the community look?) |
| Motifs/graphlets | Smaller interacting units/patterns between 3 species | @milo2002 | | Meso (how do species interact?) |
| Shortest path | Shortest path from species *a* to a basal species | | diameter, perturbation, food chain length | Meso (how do species interact?) |
| Links | Number of links in the network | | | Macro (how does the community look?) |
| Connectance | The number realised links compared to the number of potential links | | | Macro (how does the community look?) |
| Nestedness | Interactions forming a subset of others - diets being subsets of others | @bastolla2009 | | Macro (how does the community look?) |
| Clustering/modularity | Non-interacting units/clusters of species (opposite of nestedness?) | | | Macro (how does the community look?) |
| Intervaility | 'ordination' of a network. How much can the network be described by a single trait | | | Macro (how does the community look?) |
| Complexity | A representation of links between species in a system | @strydom2021, @riva2023 | | Macro (how does the community look?) |
| $\beta$-diversity | | @poisot2012 | | Meta (how do communities differ?) |
| Summary Statistic (form) | What | Ref | Ecological interpretation (function) | Scale |
|---------------|---------------|---------------|------------------|---------------|
| Specificity | Related to number of links at the species level | | Measure of (diet) specialisation | Micro |
| Generaility/vulnerability | Number of prey/predators | @schoener1989 | Position in food web *e.g.,* top/basal species | Micro |
| In/out degree | Number of predators/prey but in a different context?? | @williams2000 | | |
| Degree distribution | measures the probability (*P(k))* that a species has *k* interactions within the network | | | Micro |
| Centrality | | | Position of species in network. The idea of hubs... | Macro |
| Motifs/graphlets | Smaller interacting units/patterns between 3 species | @milo2002 | | Meso |
| Shortest path | Shortest path from species *a* to a basal species | | diameter, perturbation, food chain length | Meso |
| Links | Number of links in the network | | | Macro |
| Connectance | The number realised links compared to the number of potential links | | | Macro |
| Nestedness | Interactions forming a subset of others - diets being subsets of others | @bastolla2009 | | Macro |
| Clustering/modularity | Non-interacting units/clusters of species (opposite of nestedness?) | | | Macro |
| Intervaility | 'ordination' of a network. How much can the network be described by a single trait | | | Macro |
| Complexity | A representation of links between species in a system | @strydom2021, @riva2023 | | Macro |
| $\beta$-diversity | | @poisot2012 | | Meta |

: Table with network summary statistics. {#tbl-summaries}

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