Null model analysis of species nestedness patterns

Ecology
Werner Ulrich, Nicholas J Gotelli

Abstract

Nestedness is a common biogeographic pattern in which small communities form proper subsets of large communities. However, the detection of nestedness in binary presence-absence matrices will be affected by both the metric used to quantify nestedness and the reference null distribution. In this study, we assessed the statistical performance of eight nestedness metrics and six null model algorithms. The metrics and algorithms were tested against a benchmark set of 200 random matrices and 200 nested matrices that were created by passive sampling. Many algorithms that have been used in nestedness studies are vulnerable to type I errors (falsely rejecting a true null hypothesis). The best-performing algorithm maintains fixed row and fixed column totals, but it is conservative and may not always detect nestedness when it is present. Among the eight indices, the popular matrix temperature metric did not have good statistical properties. Instead, the Brualdi and Sanderson discrepancy index and Cutler's index of unexpected presences performed best. When used with the fixed-fixed algorithm, these indices provide a conservative test for nestedness. Although previous studies have revealed a high frequency of nestedness, a reanalysis of 28...Continue Reading

References

Aug 28, 2003·Oecologia·Xiaoyong ChenDerek Eamus
Jun 1, 1995·Oecologia·Rosamonde R Cook, James F Quinn
Dec 1, 1997·Oecologia·David H WrightWirt Atmar
May 1, 1999·Oecologia·Richard A Brualdi, James G Sanderson
Feb 1, 1998·Oecologia·Rosamonde R Cook, James F Quinn
Dec 1, 1992·Oecologia·David H Wright, Jaxk H Reeves
Oct 1, 2001·Oecologia·Nicholas J Gotelli, Gary L Entsminger

❮ Previous
Next ❯

Citations

Oct 15, 2009·Oecologia·Nicholas J Gotelli, Werner Ulrich
Jun 29, 2011·Proceedings of the National Academy of Sciences of the United States of America·Cesar O FloresJoshua S Weitz
Jul 18, 2009·PloS One·Benigno PadrónJens M Olesen
Feb 2, 2011·PloS One·José M GómezPedro Jordano
Jan 29, 2013·PloS One·Juan C Márquez, Jurek Kolasa
Jul 3, 2009·Ecology·Sarah C Elmendorf, Susan P Harrison
Jun 30, 2014·Theory in Biosciences = Theorie in Den Biowissenschaften·Giovanni Strona, Simone Fattorini
Nov 7, 2015·Global Change Biology·Lauren C PonisioClaire Kremen
Oct 25, 2008·The American Naturalist·Miguel Verdú, Alfonso Valiente-Banuet
Dec 15, 2010·Ecology·Werner Ulrich, Nicholas J Gotelli
Jan 15, 2016·Behavioral Ecology and Sociobiology·Grant C McDonald, Tommaso Pizzari
Jun 22, 2010·Trends in Parasitology·Robert Poulin
Oct 6, 2009·Journal of Theoretical Biology·S AzaeleI Rodriguez-Iturbe
Jul 2, 2009·Ecology Letters·Lucas N JoppaStuart L Pimm
Jul 27, 2012·Ecology and Evolution·Carlos Granado-LorencioFrank Alvarez
Nov 13, 2010·The Journal of Animal Ecology·Jens-Christian SvenningAndrés Baselga
Nov 10, 2012·Ecology and Evolution·Monica A M GruberPhilip J Lester
Apr 9, 2010·The Journal of Animal Ecology·Miguel A FortunaJordi Bascompte
Jan 17, 2012·Environmental Pollution·Mikhail A Beketov, Matthias Liess
Apr 10, 2015·PloS One·Mingxu ZhaoRhett Daniel Harrison
Sep 21, 2016·Ecology and Evolution·Colin CampbellKatriona Shea
Jul 9, 2011·Memórias do Instituto Oswaldo Cruz·Jorge Eduardo RabinovichLuis Fernando Chaves
Feb 14, 2009·Journal of Experimental Botany·Aaron M Ellison, Nicholas J Gotelli

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved