Responses of Ovipositing Moths (Lepidoptera: Geometridae) to Host Plant Deprivation: Life-History Aspects and Implications for Population Dynamics

Tammaru, Toomas; Javoiš, Juhan

doi:10.1603/0046-225x-29.5.1002

Cited by 32 publications

(36 citation statements)

References 46 publications

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“…fresh adult female mass from about 10 to 200 mg: Javoiš et al 2011, Davis et al 2012, larval diet breadth (Seppänen 1970, Crafer 2005, Davis et al 2013, and flight season (Leraut 2009, any month of the year, including winter in the southern half of Europe; Table 1) amongst others. Importantly, species of this family, in contrast to most other lepidopteran families (Hebert 1983, Tammaru andHaukioja 1996), are known to have disparate values of dCB (Tammaru et al 1996a, Tammaru and Javoiš 2000). Indeed, some geometrids (e.g.…”

Section: Species Datamentioning

confidence: 98%

“…Direct methods estimating the share of larval vs adult-derived resources used in reproduction, like isotope studies (Boggs 1997, Fischer et al 2004, O'Brien et al 2005, or even simple experiments in which reproductive output is compared in fed vs starved adults (Boggs and Ross 1993, Tammaru and Javoiš 2000, Molleman et al 2009, are impractically laborious to…”

Section: Accepted Articlementioning

confidence: 99%

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An ordination of life histories using morphological proxies: capital vs. income breeding in insects

Davis

Javoiš

Kaasik

et al. 2016

Ecology

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Predictive classifications of life histories are essential for evolutionary ecology. While attempts to apply a single approach to all organisms may be overambitious, recent advances suggest that more narrow ordination schemes can be useful. However, these schemes mostly lack easily observable proxies of the position of a species on respective axes. It has been proposed that, in insects, the degree of capital (vs. income) breeding, reflecting the importance of adult feeding for reproduction, correlates with various ecological traits at the level of among-species comparison. We sought to prove these ideas via rigorous phylogenetic comparative analyses. We used experimentally derived life-history data for 57 species of European Geometridae (Lepidoptera), and an original phylogenetic reconstruction. The degree of capital breeding was estimated based on morphological proxies, including relative abdomen size of females. Applying Brownian-motion-based comparative analyses (with an original update to include error estimates), we demonstrated the associations between the degree of capital breeding and larval diet breadth, sexual size dimorphism, and reproductive season. Ornstein-Uhlenbeck model based phylogenetic analysis suggested a causal relationship between the degree of capital breeding and diet breadth. Our study indicates that the gradation from capital to income breeding is an informative axis to ordinate life-history strategies in flying insects which are affected by the fecundity vs. mobility trade off, with the availability of easy to record proxies contributing to its predictive power in practical contexts.

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Section: Species Datamentioning

confidence: 98%

Section: Accepted Articlementioning

confidence: 99%

An ordination of life histories using morphological proxies: capital vs. income breeding in insects

Davis

Javoiš

Kaasik

et al. 2016

Ecology

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“…Spruce twigs were readily accepted also in the single substrate oviposition trials, showing that the stimuli from a suitable host plant are not essential for eliciting oviposition behaviour in C. hero (cf. Tammaru and Javoiš 2000).…”

Section: Discussionmentioning

confidence: 99%

Host associations of Coenonympha hero (Lepidoptera: Nymphalidae) in northern Europe: microhabitat rather than plant species

et al. 2016

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Understanding ecological requirements of endangered species is a primary precondition of successful conservation practice. Regrettably, we know surprisingly little about the life history of numerous threatened insects, and about their use of larval host plants in particular. The brown butterflies (Nymphalidae: Satyrinae) have traditionally been considered polyphagous on grasses and indiscriminatory in their oviposition behavior. However, detailed studies on several species have revealed local specialization in host plant use as well as the decisive role of microlimatic conditions as determinants of habitat quality. The present study addresses host plant relationships in the endangered brown butterfly Coenonympha hero (L.) at the northern limit of its European distribution. We combine laboratory-based host preference and performance tests with an analysis of microhabitat use by adult butterflies in the field. Both lines of evidence suggest that C. hero is polyphagous enough not to be associated with one particular host species. Oviposition choices of C. hero are not driven by host plant species but rather by structural characteristics of the substrate. The preferred rigid needlelike structures may serve as cues of 'transparent' vegetation which allows the larvae to benefit from sunlight reaching the lower strata of the tuft. Our results suggest that conservation efforts should prioritize microclimatic parameters, rather than the presence of any particular host plant species, as decisive determinants of habitat quality in C. hero.

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“…In this case, eggs are ovulated (i.e. passed from the ovariole into the lateral oviduct) but held in the oviducts until suitable oviposition substrate is found (e. g. Tammaru and Javois 2000;Mefferd et al 2005;Takahashi 2007). Thus, it could also be that the number of laid eggs is a function of the storage capacity of the females.…”

Section: Discussionmentioning

confidence: 99%

Reproductive anatomy and fecundity estimation of the haematophagous ectoparasite Carnus hemapterus

Valera

Zídková

2011

Parasitol Res

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The dynamics of host-parasite interactions depends to a large extent on the effect of host responses on parasite fitness. An increased research effort is currently being invested in the study of host influence on parasite fitness both at a population and at an individual level even though basic information (e.g. the reproductive anatomy of parasites) is frequently missing. Here, we study for the first time the reproductive system of the diptera Carnus hemapterus, a 2-mm long, highly mobile haematophagous fly parasitizing nestlings of a broad variety of bird species. Although this species is poorly known, it is being increasingly used for the study of host-parasite interactions. We also assess the reliability of a method to estimate fecundity based on the number of laid eggs per gravid female and analyse the effect of body size on fecundity estimates. Our results show that carnid flies are synovigenic, so that both the number of laid eggs at a given moment and the egg load represent only a fraction of the true potential fecundity. Moreover, laid eggs are probably a fraction of the number of mature eggs ready to be laid since females withheld seemingly mature eggs at oviposition. A high proportion of pregnant females did not lay eggs, and the number of eggs laid per pregnant female varied remarkably. The latter is explained partly by a positive relationship with body size (thorax length and abdomen width). Caution is needed when using the number of laid eggs as a shortcut estimation of fecundity in C. hemapterus. We propose some improvements to the method for assessing Carnus fertility.

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Responses of Ovipositing Moths (Lepidoptera: Geometridae) to Host Plant Deprivation: Life-History Aspects and Implications for Population Dynamics

Cited by 32 publications

References 46 publications

An ordination of life histories using morphological proxies: capital vs. income breeding in insects

An ordination of life histories using morphological proxies: capital vs. income breeding in insects

Host associations of Coenonympha hero (Lepidoptera: Nymphalidae) in northern Europe: microhabitat rather than plant species

Reproductive anatomy and fecundity estimation of the haematophagous ectoparasite Carnus hemapterus

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