A statistical social network model for consumption data in trophic food webs
| dc.contributor.author | Chiu, Grace | |
| dc.contributor.author | Westveld, Anton | |
| dc.date.accessioned | 2016-06-14T23:19:52Z | |
| dc.date.issued | 2014 | |
| dc.date.updated | 2016-06-14T08:43:41Z | |
| dc.description.abstract | We adapt existing statistical modeling techniques for social net- works to study consumption data observed in trophic food webs. Thesedatadescribethefeedingvolume(non-negative)amongor- ganisms grouped into nodes, called trophic species, that form the foodweb.Modelcomplexityarisesduetotheextensiveamountof zerosinthedata,aseachnodeinthewebispredator/preytoonly asmallnumberofothertrophicspecies.Manyofthezerosarere- gardedasstructural(non-random)inthecontextoffeedingbehav- ior.Thepresenceofbasalpreyandtoppredatornodes(thosewho never consume and those who are never consumed, with proba- bility 1) creates additional complexity to the statistical modeling. Wedevelopaspecialstatisticalsocialnetworkmodeltoaccountfor suchnetworkfeatures.Themodelisappliedtotwoempiricalfood webs;focusisonthewebforwhichthepopulationsizeofsealsis ofconcerntovariouscommercialfisheries | |
| dc.identifier.issn | 1572-3127 | |
| dc.identifier.uri | http://hdl.handle.net/1885/103086 | |
| dc.publisher | Elsevier BV | |
| dc.source | Statistical Methodology | |
| dc.title | A statistical social network model for consumption data in trophic food webs | |
| dc.type | Journal article | |
| local.bibliographicCitation.lastpage | 160 | |
| local.bibliographicCitation.startpage | 139 | |
| local.contributor.affiliation | Chiu, Grace, College of Business and Economics, ANU | |
| local.contributor.affiliation | Westveld, Anton, College of Business and Economics, ANU | |
| local.contributor.authoruid | Chiu, Grace, u1003134 | |
| local.contributor.authoruid | Westveld, Anton, u5610009 | |
| local.description.notes | Imported from ARIES | |
| local.identifier.absfor | 010401 - Applied Statistics | |
| local.identifier.absfor | 010405 - Statistical Theory | |
| local.identifier.ariespublication | U3488905xPUB14644 | |
| local.identifier.citationvolume | 17 | |
| local.identifier.doi | 10.1016/j.stamet.2013.09.001 | |
| local.identifier.scopusID | 2-s2.0-84885093397 | |
| local.type.status | Published Version |