foodwebs: A collection of food webs
Description
A list of graphs. Each one is a food web, i.e. a directed
graph of predator-prey relationships.Format
A named list of directed igraph graph objects. Here are the
list of the graphs included:
- ‘ChesLower’
- Lower Chesapeake Bay in Summer. Reference: Hagy, J.D. (2002) Eutrophication, hypoxia and
trophic transfer efficiency in Chesapeake Bay PhD Dissertation,
University of Maryland at College Park (USA), 446 pp.
- ‘ChesMiddle’
- Middle Chesapeake Bay in Summer. Reference: same as for ‘ChesLower’.
- ‘ChesUpper’
- Upper Chesapeake Bay in Summer. Reference: same as for ‘ChesLower’.
- ‘Chesapeake’
- Chesapeake Bay Mesohaline Network. Reference: Baird D. & Ulanowicz R.E. (1989) The seasonal dynamics
of the Chesapeake Bay ecosystem. Ecological Monographs 59:329-364.
- ‘CrystalC’
- Crystal River Creek (Control). Reference: Homer, M. and W.M. Kemp. Unpublished Ms. See also
Ulanowicz, R.E. 1986. Growth and Development: Ecosystems
Phenomenology. Springer, New York. pp 69-79.
- ‘CrystalD’
- Crystal River Creek (Delta Temp). Reference: same as for ‘CrystalD’.
- ‘Maspalomas’
- Charca de Maspalomas. Reference: Almunia, J., G. Basterretxea, J. Aristegui, and
R.E. Ulanowicz. (1999) Benthic- Pelagic switching in a coastal
subtropical lagoon. Estuarine, Coastal and Shelf Science
49:363-384.
- ‘Michigan’
- Lake Michigan Control network. Reference: Krause, A. and D. Mason. (In preparation.) A. Krause,
PhD. Dissertation, Michigan State University. Ann Arbor, MI. USA.
- ‘Mondego’
- Mondego Estuary - Zostrea site. Reference: Patricio, J. (In Preparation) Master's
Thesis. University of Coimbra, Coimbra, Portugal.
- ‘Narragan’
- Narragansett Bay Model. Reference: Monaco, M.E. and R.E. Ulanowicz. (1997) Comparative
ecosystem trophic structure of three U.S. Mid-Atlantic
estuaries. Mar. Ecol. Prog. Ser. 161:239-254.
- ‘Rhode’
- Rhode River Watershed - Water Budget. Reference: Correll, D. (Unpublished manuscript) Smithsonian
Institute, Chesapeake Bay Center for Environmental Research,
Edgewater, Maryland 21037-0028 USA.
- ‘StMarks’
- St. Marks River (Florida) Flow network. Reference: Baird, D., J. Luczkovich and R. R. Christian. (1998)
Assessment of spatial and temporal variability in ecosystem
attributes of the St Marks National Wildlife Refuge, Apalachee Bay,
Florida. Estuarine, Coastal, and Shelf Science 47: 329-349.
- ‘baydry’
- Florida Bay Trophic Exchange Matrix, dry season. Reference: Ulanowicz, R. E., C. Bondavalli, and
M. S. Egnotovich. 1998. Network analysis of trophic dynamics in
South Florida ecosystems, FY 97: the Florida Bay ecosystem. Annual
Report to the United States Geological Service Biological Resources
Division, University of Miami Coral Gables, [UMCES] CBL 98-123,
Maryland System Center for Environmental Science, Chesapeake
Biological Laboratory, Maryland, USA.
- ‘baywet’
- Florida Bay Trophic Exchange Matrix, wet season. Reference: same as for ‘baydry’.
- ‘cypdry’
- Cypress, dry season. Reference: Ulanowicz, R. E., C. Bondavalli, and
M. S. Egnotovich. 1997. Network analysis of trophic dynamics in
South Florida ecosystems, FY 96: the cypress wetland
ecosystem. Annual Report to the United States Geological Service
Biological Resources Division, University of Miami Coral Gables,
[UM-CES] CBL 97-075, Maryland System Center for Environmental
Science, Chesapeake Biological Laboratory.
- ‘cypwet’
- Cypress, wet season. Reference: same as for ‘cypdry’.
- ‘gramdry’
- Everglades Graminoids - Dry Season. Reference: Ulanowicz, R. E., J. J. Heymans, and
M. S. Egnotovich. 2000. Network analysis of trophic dynamics in
South Florida ecosystems, FY 99: the graminoid ecosystem. Technical
Report TS-191-99, Maryland System Center for Environmental Science,
Chesapeake Biological Laboratory, Maryland, USA.
- ‘gramwet’
- Everglades Graminoids - Wet Season. Reference: same as for ‘gramdry’.
- ‘mangdry’
- Mangrove Estuary, Dry Season. Reference: Ulanowicz, R. E., C. Bondavalli, J. J. Heymans, and
M. S. Egnotovich. 1999. Network analysis of trophic dynamics in
South Florida ecosystems, FY 98: the mangrove ecosystem. Technical
Report TS-191-99, Maryland System Center for Environmental Science,
Chesapeake Biological Laboratory, Maryland, USA.
- ‘mangwet’
- Mangrove Estuary, Wet Season. Reference: same as for ‘mangdry’.
Each graph has the following vertex attributes: ‘name’ is the
name of the species, ‘ECO’ is the type of the node, and
integer value between one and five, meaning:
- Living/producing compartment
- Other compartment
- Input
- Output
- Respiration.
The ‘Biomass’ vertex attribute contains the biomass of the
species. Edges are weighted, and the weights denote energy flux between the
species involved. The graphs also contain some informative graph attributes:
‘Author’, ‘Citation’, ‘URL’, and
‘name’.References
See them above.