Skip navigation
Skip navigation

Treating the nestedness temperature calculator as a black box can lead to false conclusions

Fischer, Joern; Lindenmayer, David B

Description

We used the nestedness temperature calculator to examine patterns of nestedness in two datasets on birds in fragmented landscapes in southeastern Australia. During our initial analyses, we found that the nestedness calculator was susceptible to detect nestedness as an artifact of passive sampling. To examine this problem in more detail, we created random matrices that simulated a situation where nestedness did not occur, and we reanalysed two previously published datasets. Our results showed...[Show more]

dc.contributor.authorFischer, Joern
dc.contributor.authorLindenmayer, David B
dc.date.accessioned2015-12-13T23:40:44Z
dc.date.available2015-12-13T23:40:44Z
dc.identifier.issn0030-1299
dc.identifier.urihttp://hdl.handle.net/1885/94592
dc.description.abstractWe used the nestedness temperature calculator to examine patterns of nestedness in two datasets on birds in fragmented landscapes in southeastern Australia. During our initial analyses, we found that the nestedness calculator was susceptible to detect nestedness as an artifact of passive sampling. To examine this problem in more detail, we created random matrices that simulated a situation where nestedness did not occur, and we reanalysed two previously published datasets. Our results showed that the nestedness calculator may (1) overestimate the degree of nestedness and its statistical significance, and (2) consider some datasets which include both ubiquitous and rare species to be significantly nested although they are not. Our results highlight the danger of blindly relying on the p-values generated by analytical packages such as the nestedness calculator. We suggest that users of analytical packages (often field ecologists) will need to be more critical in future and familiarise themselves in more detail with the packages they use. In addition, the developers of analytical packages (often theoretical ecologists) will need to communicate more clearly the limitations and assumptions underlying analytical tools such as the nestedness calculator.
dc.language.isoen_AU
dc.publisherMunksgaard International Publishers
dc.sourceOikos
dc.subjectKeywords: analytical method; bird; data set; nestedness; Australia; Aves
dc.titleTreating the nestedness temperature calculator as a black box can lead to false conclusions
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume99
dc.date.issued2002
local.identifier.absfor050202 - Conservation and Biodiversity
local.identifier.ariespublicationMigratedxPub24210
local.type.statusPublished Version
local.contributor.affiliationFischer, Joern, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationLindenmayer, David, College of Medicine, Biology and Environment, ANU
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage193
local.bibliographicCitation.lastpage199
local.identifier.doi10.1034/j.1600-0706.2002.990121.x
dc.date.updated2015-12-12T09:30:12Z
local.identifier.scopusID2-s2.0-0036774908
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator