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gateway_foodwebs — GATEWAy global food web database (2018)

Description

The GlobAL daTabasE of traits and food Web Architecture (GATEWAy, version 1.0), compiled by Brose et al., which contains 290 food webs from freshwater (lakes and streams), marine and terrestrial (aboveground and belowground) ecosystems on all continents, with 222,151 feeding interactions between consumers and resources, annotated with their body masses, metabolic and movement types. The food webs were assembled from published studies (23 sources) and were established by various methods (published accounts, expert knowledge, direct field observation, gut content analysis, extrapolation from similar taxa, etc.). Here, all food webs are combined into a single network, in which each node is a taxon at a given life stage in a given food web, so that the food webs are disjoint components (a taxon that appears in more than one food web corresponds to more than one node). A directed edge goes from a consumer to its resource. A few interactions (432) are listed more than once within a food web, and are kept as parallel edges. Some of the food webs are also available separately: the Carpinteria Salt Marsh web of Lafferty et al. (2006) is the network food_web_lafferty of the entry iwdb (later versions, resolved by life stage or aggregated by species, are in california_estuaries and coastal_parasite_webs), and the ten New Zealand stream webs of Townsend et al. (1998) match the corresponding food_web_thompson_* networks of iwdb (which have no taxon names), with the same or nearly the same number of links.

The network has the following properties:

  • Nodes: name, the taxon, at the highest available taxonomic resolution; taxonomy_level, the taxonomic level of the name (e.g. "species", "genus", "family"); common_name, its common name; lifestage, the life stage (e.g. "adults", "juveniles", "larvae"); metabolic_type ("invertebrate", "ectotherm vertebrate", "endotherm vertebrate", "primary producer", "heterotrophic bacteria", "heterotrophic fungi"); movement_type ("walking", "swimming", "flying", "sessile", "other"); mass_mean, mass_min and mass_max, the mean, minimum and maximum body mass in grams of the population involved in the interactions; length_mean, length_min and length_max, the corresponding body lengths in cm (missing values are NaN; for a few nodes, the values differ between interactions, and the first is used); foodweb, the name of the food web; ecosystem_type ("marine", "lakes", "streams", "terrestrial aboveground", "terrestrial belowground"); location, the geographic location of the food web; latitude and longitude, its coordinates. Missing string values (given as "NA" in the source) are empty.
  • Edges: interaction_type, the type of interaction ("predacious", "herbivorous", "detritivorous", "fungivorous", "parasitoid", "parasitic", "bacterivorous", "pathogen"); dimensionality, whether the search space of the consumer is two- or three-dimensional ("2D" or "3D"); classification, whether the interaction is individual-based ("ibi") or non-individual-based ("nibi") intake and attack; methodology, how the link was established; citation, the source of the link.
Tags
Biological Food web Unweighted Metadata Multigraph
Citation
Upstream URL OK
https://doi.org/10.25829/idiv.283-3-756
Upstream license
Creative Commons Attribution 4.0 International (CC BY 4.0), https://creativecommons.org/licenses/by/4.0/
Networks
Tip: hover over a column header for a description.
Column legend
$\left<k\right>$
Mean degree
$\sigma_k$
Standard deviation of the degrees
$\lambda_h$
Largest eigenvalue of the Hashimoto (non-backtracking) matrix
$\tau$
Random walk mixing time
$r$
Degree assortativity
$c$
Global clustering coefficient
$\oslash$
(Pseudo-) diameter
$S$
Relative size of the largest component
NPs
Node properties
EPs
Edge properties
Name Nodes Edges $\left<k\right>$ $\sigma_k$ $\lambda_h$ $\tau$ $r$ $c$ $\oslash$ $S$ Kind Mode NPs EPs gt GraphML GML csv
gateway_foodwebs 19,212 222,151 11.56 25.53 102.88 8.58 0.43 0.44 8 0.03 Directed Unipartite name taxonomy_level common_name lifestage metabolic_type movement_type mass_mean mass_min mass_max length_mean length_min length_max foodweb ecosystem_type location latitude longitude interaction_type dimensionality classification methodology citation 314 KiB 1.1 MiB 1.0 MiB 969 KiB