The effect of diet quality on physiological and life-history traits in the harvestman Pachylus paesslerik

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dc.contributor.authorNaya, Daniel E.
dc.contributor.authorLardies, Marco A.
dc.contributor.authorBozinovic, Francisco
dc.date.accessioned2024-01-10T12:43:41Z
dc.date.available2024-01-10T12:43:41Z
dc.date.issued2007
dc.description.abstractThe balance between energy acquisition and expenditure is critical to the survival and reproductive success of animals. Here we investigate the long-term effects of diet quality on physiological and life-history flexibility in the harvestman, Pachylus paessleri. We used cow meal as a protein-rich diet and potatoes as a carbohydrate-rich diet in order to reproduce two extreme conditions regarding food quality in harvestmen natural habitat. As proxy variables of the energy expenditure process, we quantified standard metabolic rate (maintenance), changes in body mass (somatic condition), and fecundity (reproduction). We found that animals consuming the protein-rich diet were able to increase both their body condition and fecundity. However, the increment in these two life-history traits was correlated with higher maintenance costs. In contrast, the carbohydrate-rich diet did not provide enough specific nutrients for reproductive events, although it may have allowed animals to survive for a long time. Thus, according to the quality of the diet available in the environment, harvestman females can adopt different life-history strategies correlated with phenotypic adjustments at anatomical and physiological levels. In the Mediterranean region, spatial and temporal changes in food quality are typical, so greater phenotypic flexibility is expected to cope with this kind of environmental variation. (c) 2006 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital27-03-2024
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jinsphys.2006.11.004
dc.identifier.eissn1879-1611
dc.identifier.issn0022-1910
dc.identifier.pubmedidMEDLINE:17196974
dc.identifier.urihttps://doi.org/10.1016/j.jinsphys.2006.11.004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77614
dc.identifier.wosidWOS:000244817200003
dc.information.autorucCiencias Biológicas;Bozinovic F;S/I;100031
dc.issue.numero2
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final138
dc.pagina.inicio132
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaJOURNAL OF INSECT PHYSIOLOGY
dc.rightsacceso restringido
dc.subjectfecundity
dc.subjectfood quality
dc.subjectmetabolic rate
dc.subjectphenotypic plasticity
dc.subjectsomatic condition
dc.subjectBASAL METABOLIC-RATE
dc.subjectTRADE-OFFS
dc.subjectGASTROINTESTINAL-TRACT
dc.subjectRESOURCE-ALLOCATION
dc.subjectMATERNAL FOOD
dc.subjectREPRODUCTION
dc.subjectENERGETICS
dc.subjectOPILIONES
dc.subjectECOLOGY
dc.subjectCRICKET
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleThe effect of diet quality on physiological and life-history traits in the harvestman Pachylus paesslerik
dc.typeartículo
dc.volumen53
sipa.codpersvinculados100031
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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