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Titolo:
THE SELECTION OF NUTRITIONALLY BALANCED FOODS BY LOCUSTA-MIGRATORIA -THE INTERACTION BETWEEN FOOD NUTRIENTS AND ADDED FLAVORS
Autore:
CHAMBERS PG; RAUBENHEIMER D; SIMPSON SJ;
Indirizzi:
UNIV OXFORD,DEPT ZOOL,S PARKS RD OXFORD OX1 3PS ENGLAND UNIV OXFORD,DEPT ZOOL OXFORD OX1 3PS ENGLAND
Titolo Testata:
Physiological entomology
fascicolo: 3, volume: 22, anno: 1997,
pagine: 199 - 206
SICI:
0307-6962(1997)22:3<199:TSONBF>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
GRASSHOPPER SCHISTOCERCA-AMERICANA; FEEDING-BEHAVIOR; SALT INTAKE; DIGESTIBLE CARBOHYDRATE; DIETARY SELECTION; SELF-SELECTION; TANNIC-ACID; MECHANISMS; NYMPHS; PROTEIN;
Keywords:
LOCUSTS; FEEDING; NUTRITION; BEHAVIOR; ALLELOCHEMICALS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
P.G. Chambers et al., "THE SELECTION OF NUTRITIONALLY BALANCED FOODS BY LOCUSTA-MIGRATORIA -THE INTERACTION BETWEEN FOOD NUTRIENTS AND ADDED FLAVORS", Physiological entomology, 22(3), 1997, pp. 199-206

Abstract

To investigate the ability of insects to discriminate between nutritionally balanced and unbalanced foods, fifth-instar nymphs of Locusta migratoria L. (Orthoptera: Acrididae) were given one of thirteen pairings of artificial foods differing only in their concentration of protein and carbohydrate. One food, containing a previously estimated optimum balance of these nutrients, was common to each pairing. The relativeintake of this 'target' food increased on the more extreme pairings, i.e. the insects demonstrated increasingly strong preference for the balanced food when it was paired with unbalanced alternative foods. When distinctive non-nutritional flavours (tannic acid and amygdalin) were added to one or both of the foods, the insects' intake of the unbalanced foods increased, particularly on high-protein foods. It is suggested that learned associations were not involved in the observed patterns of selection and that the added flavours disrupted the chemosensoryresponses to nutrients used by the insects to differentiate foods in this context.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 14:24:18