Covariance of phenotypically plastic traits induces an adaptive shift in host selection behaviour

Henry, Lee M.; Roitberg, Bernard D.; Gillespie, D. R.

doi:10.1098/rspb.2006.3672

Cited by 44 publications

(41 citation statements)

References 46 publications

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“…1). Therefore our results support those of Rotheray et al (1984) and Henry et al (2006) who report a positive relationship between female size and that of the hosts mummified. However, these studies did not measure intra-population variation as the parasitoids were reared from different host species and differed greatly in size.…”

Section: Discussionsupporting

confidence: 92%

“…Despite this association between maternal size and host selection this topic has received a little attention. Rotheray et al (1984) and Henry et al (2006) show there is a positive association between female parasitoid size and host size. In both these studies, small and large females were produced by rearing the parasitoid in a small or a large host.…”

Section: Introductionmentioning

confidence: 96%

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Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)

Lykouressis¹,

Garantonakis²,

Perdikis³

et al. 2009

Eur. J. Entomol.

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Abstract. Body size is a main fitness component of insect parasitoids. We assessed the potential influence of maternal size of the parasitoid wasp Aphidius colemani Viereck (Hymenoptera: Braconidae: Aphidiinae) on its ability to parasitize the different instars of Aphis gossypii Glover (Hemiptera: Aphididae) on eggplant and cucumber. In the experiments "small" vs "large" parasitoid females were used. Females oviposited in all instars but more of the smaller hosts were parasitized. Host selection was affected by female size and the larger hosts were more frequently mummified by the large than the small females. Thus, parasitoid female size influenced host selection. This could affect the potential of the parasitoid to exploit populations of aphids that differ in their size structure. The importance of these results in terms of the ecological adaptations of the parasitoid and their implication for biological control are discussed.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 96%

Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)

Lykouressis¹,

Garantonakis²,

Perdikis³

et al. 2009

Eur. J. Entomol.

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“…The findings of this study have important evolutionary implications because when one trait's performance depends on the response of the other, phenotypic linkages between the two traits may form via adaptive evolution (Henry et al 2006). Trait correlations may in turn enhance the evolution of adaptive integration, especially if the traits are functionally related (Wagner 1988).…”

Section: Discussionmentioning

confidence: 99%

An inducible morphological defence is a passive by-product of behaviour in a marine snail

Bourdeau

2009

Proc. R. Soc. B.

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Many organisms have evolved inducible defences in response to spatial and temporal variability in predation risk. These defences are assumed to incur large costs to prey; however, few studies have investigated the mechanisms and costs underlying these adaptive responses. I examined the proximate cause of predator-induced shell thickening in a marine snail (Nucella lamellosa) and tested whether induced thickening leads to an increase in structural strength. Results indicate that although predators (crabs) induce thicker shells, the response is a passive by-product of reduced feeding and somatic growth rather than an active physiological response to predation risk. Physical tests indicate that although the shells of predator-induced snails are significantly stronger, the increase in performance is no different than that of snails with limited access to food. Increased shell strength is attributable to an increase in the energetically inexpensive microstructural layer rather than to material property changes in the shell. This mechanism suggests that predator-induced shell defences may be neither energetically nor developmentally costly. Positive correlations between antipredator behaviour and morphological defences may explain commonly observed associations between growth reduction and defence production in other systems and could have implications for the evolutionary potential of these plastic traits.

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“…Other appoaches (i.e., sex, mating status, egg load, age, host size, and starvation, etc.) have also been used to investigate insects such as fleas and parasitoid of fruit fly pests Henry et al 2006;Rousse et al 2009). Moreover, Poulin and Mouillot (2005) have proposed a host specificity index that combined both ecological and phylogenetic informations.…”

Section: Introductionmentioning

confidence: 99%

Host selection and niche differentiation in sucking lice (Insecta: Anoplura) among small mammals in southwestern China

et al. 2010

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Understanding factors that shape host selection has been a classic issue in ecology, evolutionary biology, and epidemiological investigation. During the survey from 2000 to 2009, a total of 11,216 individuals of small mammals were captured from Yunnan Province in southwestern China. The captured small mammalian hosts belong to five orders, ten families, 35 genera, and 65 species and from their body surface, 38,885 individuals of ectoparasitic sucking lice were collected, which represent five families, seven genera, and 31 species. Based on niche overlap of dominant sucking lice on their primary hosts, we used hierarchical cluster analysis to sort different sucking louse species' resource utilizations of similar kind into respective categories. Given λ<5, there are only two groups clustered, however, sucking louse species' resource utilization was sorted into eight respective categories at λ=15. The results revealed that most species of sucking lice usually had high host specificity and a certain species of sucking louse usually restricted to one or few small mammalian species as their dominant hosts. Correspondence analysis was used to visualize associations between parasitic sucking lice and their small mammalian hosts, which suggested three different patterns of host resource utilization: species specialists, genera generalists, and multiple selections. For example, Sathrax durus (Johnson) only parasitized on species of Tupaia belangeri (Wagner), Hoplopleura edentula (Fahredholz) predominatly on genus of Eothenomys, and Polyplax reclinata (Nitzsch) on Family of Soricidae. Our results demonstrate that sucking lice have high host specificity and this might be due to coevolution between sucking lice and their hosts.

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Covariance of phenotypically plastic traits induces an adaptive shift in host selection behaviour

Cited by 44 publications

References 46 publications

Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)

Effect of female size on host selection by a koinobiont insect parasitoid (Hymenoptera: Braconidae: Aphidiinae)

An inducible morphological defence is a passive by-product of behaviour in a marine snail

Host selection and niche differentiation in sucking lice (Insecta: Anoplura) among small mammals in southwestern China

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