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Titolo: SURVIVAL ANALYSIS OF 3 CLONES OF BRACHIONUSPLICATILIS (ROTIFERA)
Autore: SERRA M; CARMONA MJ; MIRACLE MR;
 Indirizzi:
 UNIV VALENCIA,AREA ECOL E46100 BURJASSOT SPAIN
 Titolo Testata:
 Hydrobiologia
fascicolo: 2,
volume: 277,
anno: 1994,
pagine: 97  105
 SICI:
 00188158(1994)277:2<97:SAO3CO>2.0.ZU;2N
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 REPRODUCTION; TEMPERATURE; COST;
 Keywords:
 ROTIFERS; SURVIVAL ANALYSIS; THEORETICAL MORTALITY DISTRIBUTION; AGING; REPRODUCTIVE COST; LIFE TABLES;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Science Citation Index Expanded
 Citazioni:
 24
 Recensione:
 Indirizzi per estratti:



 Citazione:
 M. Serra et al., "SURVIVAL ANALYSIS OF 3 CLONES OF BRACHIONUSPLICATILIS (ROTIFERA)", Hydrobiologia, 277(2), 1994, pp. 97105
Abstract
Agespecific survival schedules of females from three genetically different clones of Brachionus plicatilis were analyzed at several environmental conditions in the laboratory. Lifespan showed the expected decrease with increasing temperature, but a general trend with salinity or genotype was not observed. Probability of death increased with age, as tested by polynomial regression analysis of the survival curve and using theoretical mortality distributions. Three twoparameter models (linearexponential model, Weibull model, and Gompertz model) were fitted to the survival data. Fitting of these models to data was rather poor, but the Gompertz model and, to a lesser extent, the Weibull modelfitted the data better than the linearexponential model. Parameters obtained from the survival curve analyses were related to other demographic parameters. A significant relationship between the shape parameter of the Gompertz model and the cohort generation time was detected, suggesting, but not proving, an effect of reproductive effort on aging.
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Documento generato il 04/12/20 alle ore 00:43:55