Arthropod Predators of &lt;I&gt;Galerucella calmariensis&lt;/I&gt; L. (Coleoptera: Chrysomelidae): An Assessment of Biotic Interference

Sebolt, Donald C; Landis, Douglas A.

doi:10.1603/0046-225x-33.2.356

Cited by 30 publications

(26 citation statements)

References 20 publications

(22 reference statements)

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“…6-9) (Lundgren, 2009b) in the absence of their Lundgren et al ( , 2005, Gordon (1985), Groden et al (1990), Sebolt and Landis (2004), Moser et al (2008) Unknown preferred ones, leading to the distinction between ''essential" food sources (i.e., those sufficient for larval development and adult oviposition) (Hodek, 1973(Hodek, , 1996 and merely facultative food sources. The use of honeydew, pollen, sap, nectar, and various fungi as alternative food sources is widespread among the predaceous groups (Pemberton and Vandenberg, 1993;Lundgren, 2009a), as is the exploitation of secondary or less favorable prey species (Hodek, 1973(Hodek, , 1996.…”

Section: Food Preferencementioning

confidence: 99%

The evolution of food preferences in Coccinellidae

et al. 2009

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a b s t r a c tDespite the familiarity and economic significance of Coccinellidae, the family has thus far escaped analysis by rigorous phylogenetic methods. As a result, the internal classification remains unstable and there is no framework with which to interpret evolutionary events within the family. Coccinellids exhibit a wide range of preferred food types spanning kingdoms, and trophic levels. To provide an evolutionary perspective on coccinellid feeding preferences, we performed a phylogenetic analysis of 62 taxa based on the ribosomal nuclear genes 18S and 28S. The entire dataset consists of 3957 aligned nucleotide sites, 787 of which are parsimony informative. Bayesian and parsimony analyses were performed. Host preferences were mapped onto the Bayesian tree to infer food preference transitions. Our results indicate that the ancestral feeding condition for Coccinellidae is coccidophagy. From the ancestral condition, there have been at least three transitions to aphidophagy and one transition to leaf-eating phytophagy. A second transition to leaf-eating phytophagy arose within an aphidophagous/pollinivorous clade. The mycophagous condition in Halyziini originated from aphidophagy. Our findings suggest that polyphagy served as an evolutionary stepping stone for primarily predaceous groups to adopt new feeding habits. The analyses recovered a clade comprising Serangiini plus Microweiseini as the sister group to the rest of Coccinellidae. The subfamilies Coccinellinae and Epilachninae are monophyletic; however, Sticholotidinae, Chilocorinae, Scymninae, and Coccidulinae are paraphyletic. Our results do not support the traditional view of phylogenetic relationships among the coccinellid subfamilies. These results indicate that the current classification system poorly reflects the evolution of Coccinellidae and therefore requires revision.

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Section: Food Preferencementioning

confidence: 99%

The evolution of food preferences in Coccinellidae

et al. 2009

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“…), and the coccinellid was judged to have interfered significantly with the biological control efforts (Goeden and Louda 1976). Sebolt and Landis (2004) report H. axyridis as a common predator co-occurring in Michigan wetlands with Galerucella calmariensis L. (Chrysomelidae). Adults of H. axyridis readily consume young larvae of this biocontrol agent of purple loosestrife.…”

Section: Effects On Biological Control Programsmentioning

confidence: 99%

“…Adults of H. axyridis readily consume young larvae of this biocontrol agent of purple loosestrife. It is unclear, however, whether significant biotic interference results for the establishment and spread of the herbivore (Sebolt and Landis 2004).…”

Section: Effects On Biological Control Programsmentioning

confidence: 99%

Invasions by ladybugs, ladybirds, and other predatory beetles

2011

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Species of predatory Coleoptera have become abundant in new geographic regions recently, raising concerns for invaded ecosystems. We address this topic by focusing on invasive alien ladybird beetles (Coccinellidae; known also as ladybugs). Humans appear directly or indirectly responsible for all or most ladybird invasions. Factors hypothesized to have promoted ladybird invasions include genetic diversity (e.g., for polymorphism), phenotypic plasticity, adaptation and genetic shift, generalized diet and habitat preferences, flexible life history and reproduction, large body size, and release from enemies. Factors such as climate, habitat and prey availability, and biotic resistance may sometimes prevent or slow ladybird invasions. Indigenous species (e.g., herbivores) may suffer from invasions, and biological control programs may be affected. Species of indigenous ladybirds throughout the world are reported to have declined in abundance following ladybird invasions, with increased competition and/or intraguild predation most often hypothesized or inferred. Similar recent studies especially of ground beetles (Carabidae) also make clear the potential of invasive alien predatory Coleoptera to disrupt invaded natural and agricultural ecosystems.

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“…Thus, this study suggests that predation influences beetle densities among sites. A range of generalist predators, among them ladybird beetles (Coleoptera: Coccinellidae), earwigs (Dermaptera: Forficulidae) and wolf spiders (Arachnida: Lycosidae), are known to effectively attack immature stages of Galerucella calmariensis and Galerucella pusilla, and may significantly reduce the populations of Galerucella (Sebold and Landis, 2004;Wiebe and Obrycki, 2004). The level of egg predation appears to be influenced by an abiotic factor, the water levels surrounding Lythrum stems in early spring.…”

Section: Discussionmentioning

confidence: 99%

Variable success of biological control of Lythrum salicaria in British Columbia

Denoth

Myers

2005

Biological Control

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Purple loosestrife, Lythrum salicaria, has invaded North American wetlands over the last 200 years. A biological control project was started in British Columbia, Canada, in 1993 with the introduction of Galerucella calmariensis, a leaf-feeding beetle of European origin. To evaluate the success of the biological control project in the Lower Mainland of British Columbia, we monitored the defoliation levels of Lythrum at 10 release sites of the control agent, identified factors associated with among-site variability in defoliation levels, and determined the effect of defoliation on the performance and abundance of Lythrum. In tidal areas, the beetles could not establish due to tidal disturbances. The control agent established at all nontidal sites, but defoliation levels varied considerably. Defoliation levels were negatively associated with predation on Galerucella eggs, suggesting that general predators may be able to prevent or delay successful biological control of Lythrum. Eggs on Lythrum stems surrounded by water experienced lower predation rates than eggs on stems on land, indicating that standing water acts as a partial refuge against predators for Galerucella eggs. Flower-bud density, length of inflorescence, and plant biomass per m 2 were all negatively related with the intensity of beetle feeding, and stem height was marginally reduced with increased beetle grazing. Dry biomass per m 2 of Lythrum appeared to decline drastically only at sites where beetle grazing was intense.

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Arthropod Predators of <I>Galerucella calmariensis</I> L. (Coleoptera: Chrysomelidae): An Assessment of Biotic Interference

Cited by 30 publications

References 20 publications

The evolution of food preferences in Coccinellidae

The evolution of food preferences in Coccinellidae

Invasions by ladybugs, ladybirds, and other predatory beetles

Variable success of biological control of Lythrum salicaria in British Columbia

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