eprintid: 1095
rev_number: 11
eprint_status: archive
userid: 6
dir: disk0/00/00/10/95
datestamp: 2012-02-01 11:39:20
lastmod: 2018-03-08 17:06:00
status_changed: 2012-02-01 11:39:20
type: article
metadata_visibility: show
creators_name: Caretta Cartozo, Cécile 
creators_name: Garlaschelli, Diego
creators_name: Ricotta, Carlo
creators_name: Barthélemy, Marc
creators_name: Caldarelli, Guido
creators_id: 
creators_id: diego.garlaschelli@imtlucca.it
creators_id: 
creators_id: 
creators_id: guido.caldarelli@imtlucca.it
title: Quantifying the taxonomic diversity in real species communities
ispublished: pub
subjects: HA
subjects: QA
subjects: QC
subjects: QH
divisions: EIC
full_text_status: none
keywords: PACS: 87.23.-n Ecology and evolution; 02.10.Ox Combinatorics; graph theory; 89.75.Hc Networks and genealogical trees; 87.10.-e General theory and mathematical aspects
abstract: We analyze several florae (collections of plant species populating specific areas) in different geographic and climatic regions. For every list of species we produce a taxonomic classification tree and we consider its statistical properties. We find that regardless of the geographical location, the climate and the environment all species collections have universal statistical properties that we show to be also robust in time. We then compare observed data sets with simulated communities obtained by randomly sampling a large pool of species from all over the world. We find differences in the behavior of the statistical properties of the corresponding taxonomic trees. Our results suggest that it is possible to distinguish quantitatively real species assemblages from random collections and thus demonstrate the existence of correlations between species.
date: 2008-06
publication: Journal of Physics A: Mathematical and Theoretical
volume: 41
number: 22
publisher: Institute of Physics
pagerange: 224012
id_number: 10.1088/1751-8113/41/22/224012
refereed: TRUE
issn: 1751-8113
official_url: http://dx.doi.org/10.1088/1751-8113/41/22/224012
citation:   Caretta Cartozo, Cécile  and Garlaschelli, Diego and Ricotta, Carlo and Barthélemy, Marc and Caldarelli, Guido  Quantifying the taxonomic diversity in real species communities.  Journal of Physics A: Mathematical and Theoretical, 41 (22).  p. 224012.  ISSN 1751-8113      (2008)