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Titolo:
Application and evaluation of Dale's non-parametric method for detecting community structure through zonation
Autore:
Thomas, KR; Munro, CL; Graeme, CB; Steel, JB; Wilson, JB;
Indirizzi:
Univ Otago, Dept Bot, Dunedin, New Zealand Univ Otago Dunedin New Zealand iv Otago, Dept Bot, Dunedin, New Zealand
Titolo Testata:
OIKOS
fascicolo: 2, volume: 84, anno: 1999,
pagine: 261 - 265
SICI:
0030-1299(199902)84:2<261:AAEODN>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
OVERLAP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Thomas, KR Univ Otago, Dept Bot, POB 56, Dunedin, New Zealand Univ Otago POB 56 Dunedin New Zealand 6, Dunedin, New Zealand
Citazione:
K.R. Thomas et al., "Application and evaluation of Dale's non-parametric method for detecting community structure through zonation", OIKOS, 84(2), 1999, pp. 261-265

Abstract

Dale's non-parametric method for analysing zonation was tested on three coastal ecosystems in New Zealand. The method, intended to investigate community structure, is based on a prediction that the upslope (i.e. top) boundary of one species will be followed upwards, more often than expected at random, by the downslope (i.e. bottom) boundary of another species. In the present study, the predicted pattern was not found: only one transect out of 12had significantly more top/bottom boundary (TB) contiguities than would beexpected on a random basis. Rather, the opposite trend was seen in two transects; of a deficit of TB contiguities. One of these deficits was significant even after Bonferroni correction for the number of tests made. Such TB deficits might be expected if there were community boundaries? and indeed TB deficits are predicted by several theoretical models of community structure. The results contrast with Dale's own results, in which there were considerably more TB contiguities than would be expected on a random basis. Thisconfirms suggestions that the pattern envisaged by Dale is likely to be uncommon.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 11:32:24