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Titolo:
POPULATION-DYNAMICS OF 2 SPECIES OF EIMERIA (APICOMPLEXA, EIMERIIDAE)IN DEER MICE (PEROMYSCUS-MANICULATUS) - BIOTIC AND ABIOTIC FACTORS
Autore:
FULLER CA;
Indirizzi:
UNIV VIRGIN ISL,DIV SCI & MATH ST THOMAS VI 00802 OREGON STATE UNIV,DEPT ZOOL CORVALLIS OR 97331
Titolo Testata:
The Journal of parasitology
fascicolo: 2, volume: 82, anno: 1996,
pagine: 220 - 225
SICI:
0022-3395(1996)82:2<220:PO2SOE>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPERMOPHILUS-ELEGANS; BRITISH RODENTS; BLOOD PARASITES; INFECTIONS; EPIDEMIOLOGY; HEMATOZOA; COCCIDIA; PATTERNS; IMMUNITY; ECOLOGY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
C.A. Fuller, "POPULATION-DYNAMICS OF 2 SPECIES OF EIMERIA (APICOMPLEXA, EIMERIIDAE)IN DEER MICE (PEROMYSCUS-MANICULATUS) - BIOTIC AND ABIOTIC FACTORS", The Journal of parasitology, 82(2), 1996, pp. 220-225

Abstract

I investigated whether biotic factors (competitive exclusion between parasites and host immunity), abiotic factors (high temperature, low temperature, and rainfall), or a combination of the 2 affected the population dynamics of Eimeria arizonensis and Eimeria delicata in naturally infected deer mice (Peromyscus maniculatus). There was no evidence of competitive exclusion between E. arizonenis and E. delicata, nor were E. arizonensis population dynamics affected by host immunity (youngdeer mice were not infected significantly more frequently than adults). However, high temperatures were negatively associated with the prevalence of observed infections (r = -0.725, P < 0.001), suggesting sporulation of oocysts might be affected. In contrast, juvenile deer mice were infected with E. delicata more frequently than adults (z = 2.05, P < 0.02), suggesting that host immunity plays a role in the population dynamics off. delicata. Temperature and rainfall during oocyst sporulation were not significantly associated with the prevalence of observed E. delicata infections. Finally, there was no evidence that a combination of biotic and abiotic factors was important in the population dynamics of either eimerian. Thus, the population dynamics of E. arizonensis seem to be controlled by abiotic factors, whereas those off. delicata seem to be affected by biotic factors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 11:31:55