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Titolo:
Stochastic modelling of the invasion process of nematodes in fly larvae
Autore:
Faddy, MJ; Fenlon, JS;
Indirizzi:
Univ Queensland, Brisbane, Qld, Australia Univ Queensland Brisbane Qld Australia ensland, Brisbane, Qld, Australia Hort Res Int, Wellesbourne CV35 9EF, Warwick, England Hort Res Int Wellesbourne Warwick England CV35 9EF 9EF, Warwick, England
Titolo Testata:
JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES C-APPLIED STATISTICS
, volume: 48, anno: 1999,
parte:, 1
pagine: 31 - 37
SICI:
0035-9254(1999)48:<31:SMOTIP>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Keywords:
distribution of number of invasions; extrabinomial variation; Markov birth processes; non-linear birth-rates; parasite invasion process;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Faddy, MJ Univalanderbury, Dept Math & Stat, Private Bag 4800, Christchurch 1, New Ze Univ Canterbury Private Bag 4800 Christchurch New Zealand 1 Ze
Citazione:
M.J. Faddy e J.S. Fenlon, "Stochastic modelling of the invasion process of nematodes in fly larvae", J ROY STA C, 48, 1999, pp. 31-37

Abstract

Stochastic models based on Markov birth processes are constructed to describe the process of invasion of a fly larva by entomopathogenic nematodes. Various forms for the birth (invasion) rates are proposed. These models are then fitted to data sets describing the observed numbers of nematodes that have invaded a fly larval after a fixed period of time. Non-linear birthrates are required to achieve good fits to these data, with their precise formleading to different patterns of invasion being identified for three populations of nematodes considered. One of these (Nemasys) showed the greatest propensity for invasion. This form of modelling may be useful more generally for analysing data that show variation which is different from that expected from a binomial distribution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 17:00:11