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Titolo:
ON IDENTIFYING COMMON DISTRIBUTION PATTERNS AND THEIR CAUSAL FACTORS - A PROBABILISTIC METHOD APPLIED TO PTERIDOPHYTES IN THE IBERIAN PENINSULA
Autore:
MARQUEZ AL; REAL R; VARGAS JM; SALVO AE;
Indirizzi:
UNIV MALAGA,FAC CIENCIAS,DEPT ANIM BIOL E-29071 MALAGA SPAIN UNIV MALAGA,FAC CIENCIAS,DEPT BIOL VEGETAL E-29071 MALAGA SPAIN
Titolo Testata:
Journal of biogeography
fascicolo: 5, volume: 24, anno: 1997,
pagine: 613 - 631
SICI:
0305-0270(1997)24:5<613:OICDPA>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
HISTORICAL FACTORS; BIOGEOGRAPHY; CLASSIFICATION; DISTURBANCE; DIVERSITY; ECOLOGY; MODELS;
Keywords:
PTERIDOPHYTES; BIOGEOGRAPHY; PROBABILISTIC CLASSIFICATION; CHOROTYPES; LOGISTIC REGRESSION; ENVIRONMENTAL FACTORS; IBERIAN PENINSULA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
62
Recensione:
Indirizzi per estratti:
Citazione:
A.L. Marquez et al., "ON IDENTIFYING COMMON DISTRIBUTION PATTERNS AND THEIR CAUSAL FACTORS - A PROBABILISTIC METHOD APPLIED TO PTERIDOPHYTES IN THE IBERIAN PENINSULA", Journal of biogeography, 24(5), 1997, pp. 613-631

Abstract

The aim of this quantitative biogeographical analysis is to identify the existence of specific groups of pteridophytes with significantly similar distribution patterns (chorotypes) in the Iberian Peninsula, aswell as to infer the environmental factors that may explain such groupings. We have applied a classification method to the pteridophyte species and have then tested the significance of the resulting groups. This allows the distinction of groups of species that occur together more frequently than expected at random from those which are just a product of the cluster analysis. The majority of the 113 pteridophyte species in the Iberian Peninsula are not distributed independently from each other, but eighteen chorotypes exist that are common to various species and three chorotypes that consist of one species each. Five species are distributed independently of the other species, and so their distribution areas overlap and segregate from the others at random. With the aim of finding a relation between the chorotypes identified and the processes that determine them, we investigated the possible incidence of certain environmental factors on the chorotype distributions by means of logistic regression. Factors that appear most frequently as possible causes of the distribution of the chorotypes are the water availability, climatic stress, availability of environmental energy, and disturbances caused by floods.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 07:09:42