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A comparative analysis of host feeding and life-history traits in parasitoid wasps

Fischbein, Deborah et al · Wiley Blackwell Publishing, Inc · 2016

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Feeding in insect parasitoids can have significant implications from behavioral and evolutionary ecology standpoints. Females of many species not only search for hosts to lay their eggs on, but also may use them as a food source. Host-feeding, as this behavior is known, occurs mostly in the Hymenoptera. There is some evidence of benefits of host feeding at the intraspecific level, but there are only few studies of the potential association between host feeding behavior and life-history traits across hymenopteran parasitoids. The main goal of this paper is to test for correlated evolution of host feeding and various other life-history traits, aiming for an understanding of the diversity of parasitoid life histories. For this, we performed a comparative analysis based mainly on phylogenetically independent contrasts (PIC), using data for 187 species of hymenopteran parasitoids, and (1) examined whether host-feeding behavior is correlated with life span, lifetime potential fecundity, and maximum egg load, (2) re-tested the potential evolutionary correlation suggested by Jervis et al. [Journal of Animal Ecology 70 (2001) 442] between host feeding and the ovigeny index (OI), and (3) re-tested the possible correlation between lifetime potential fecundity and life span across species and examined whether host feeding affects this relationship. Results indicate a positive evolutionary correlation between host feeding and both life span and maximum egg load, and a negative evolutionary correlation between host feeding and OI. Lifetime potential fecundity does not correlate with host feeding but correlates positively with life span. The effect of the interaction between host feeding and life span on potential fecundity was not significant. As has been noted in the past, the array of correlations between traits suggests the existence of adaptive suites of life-history traits involving trade-offs based on resource allocation patterns. Fil: Fischbein, Deborah. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina Fil: Jofré, Nélida Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche; Argentina

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APA 7

Fischbein, D. E. A. (2016). A comparative analysis of host feeding and life-history traits in parasitoid wasps. http://hdl.handle.net/11336/59914

MLA

Fischbein, Deborah et al. "A comparative analysis of host feeding and life-history traits in parasitoid wasps." 2016. http://hdl.handle.net/11336/59914.

Chicago

Fischbein, Deborah et al. 2016. "A comparative analysis of host feeding and life-history traits in parasitoid wasps.". http://hdl.handle.net/11336/59914.

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Fischbein, D. E. A. 2016, A comparative analysis of host feeding and life-history traits in parasitoid wasps, Wiley Blackwell Publishing, Inc, available at: http://hdl.handle.net/11336/59914 [Accessed 28 Jun. 2026].

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Título
A comparative analysis of host feeding and life-history traits in parasitoid wasps
Autor / colaboradores
Fischbein, Deborah et al
Editorial
Wiley Blackwell Publishing, Inc
Año de publicación
2016
ISSN
0013-8703
ISSN
0013-8703
Idioma
eng

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