Intraguild predation between the aphidophagous ladybird beetles Harmonia axyridis and Coccinella undecimpunctata (Coleoptera: Coccinellidae): the role of body weight

Félix, Sandra; Soares, António O.

doi:10.14411/eje.2004.032

Cited by 72 publications

(60 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Harmonia axyridis engages in intraguild interactions with many species, including other aphid predators such as other ladybirds (Ware et al 2009), lacewings (Santi and Maini 2006), and hoverflies , as well as aphid parasitoids (Chacón et al 2008) and aphid-pathogenic fungi ). These interactions generally favour H. axyridis, though interaction strength and even direction can be influenced by the life stage of the interacting species (Felix and Soares 2004) and the environment (Gardiner et al 2009). …”

Section: Invasibility Assessmentmentioning

confidence: 99%

Defining invasiveness and invasibility in ecological networks

et al. 2016

View full text Add to dashboard Cite

The success of a biological invasion is context dependent, and yet two key concepts-the invasiveness of species and the invasibility of recipient ecosystems-are often defined and considered separately. We propose a framework that can elucidate the complex relationship between invasibility and invasiveness. It is based on trait-mediated interactions between species and depicts the response of an ecological network to the intrusion of an alien species, drawing on the concept of community saturation. Here, invasiveness of an introduced species with a particular trait is measured by its per capita population growth rate when the initial propagule pressure of the introduced species is very low. The invasibility of the recipient habitat or ecosystem is dependent on the structure of the resident ecological network and is defined as the total width of an opportunity niche in the trait space susceptible to invasion. Invasibility is thus a measure of network instability. We also correlate invasibility with the asymptotic stability of resident ecological network, measured by the leading eigenvalue of the interaction matrix that depicts traitbased interaction intensity multiplied by encounter rate (a pairwise product of propagule pressure of all members in a community). We further examine the relationship between invasibility and network architecture, including network connectance, nestedness and modularity. We exemplify this framework with a trait-based assembly model under perturbations in ways to emulate fluctuating resources and random trait composition in ecological networks. The maximum invasiveness of a potential invader (greatest Electronic supplementary material The online version of this article

show abstract

Section: Invasibility Assessmentmentioning

confidence: 99%

Defining invasiveness and invasibility in ecological networks

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Of the various stages, eggs are most likely to be attacked by predators, because they are immobile, poorly defended (Agarwala & Dixon, 1992;Felix & Soares, 2004;Michaud & Grant, 2004) and likely to be a high quality food (Gagné et al, 2002;Omkar et al, 2006). Many studies indicate that ladybird larvae fed conspecific (Gagné et al, 2002;Pervez et al, 2006;Roy et al, 2007) or heterospecific eggs (Pilipjuk et al, 1982;Pfannenstiel & Yeargan, 2002;Specty et al, 2003;De Clercq et al, 2005;Michaud & Jyoti, 2008) do better than when fed aphids whereas others indicate that conspecific and /or heterospecific eggs are inferior to aphids as food for ladybird larvae (Koide, 1962;Warren & Tadic, 1967;Takahashi, 1987;Rieder et al, 2008;Sloggett et al, 2009;Sloggett & Davis, 2010).…”

Section: Introductionmentioning

confidence: 99%

Stage specific consumption and utilization of aphids, conspecific and heterospecific eggs by two species of Coccinella (Coleoptera: Coccinellidae)

Kumar¹,

Bista²,

Mishra³

et al. 2014

Eur. J. Entomol.

View full text Add to dashboard Cite

Abstract. The nutritive quality of aphids, conspecific and heterospecific eggs as food for ladybirds is a controversial issue. If ladybirds find aphids more palatable than eggs then they are more likely to efficiently exploit and be biocontrol agents of aphids. If eggs of conspecific or heterospecific ladybirds are more palatable than aphids these biocontrol agents may either impede aphid pest suppression or become a threat to other species of ladybirds. Thus, prior to formulating predatory guilds of ladybirds the nutritive quality of their eggs compared to that of the target aphid needs to be determined. In this regards, the present study evaluates the nutritive quality of an ad libitum supply of: (i) pea aphid, Acyrthosiphon pisum (Harris), (ii) conspecific eggs and (iii) heterospecific eggs as food for Coccinella septempunctata (L.) and Coccinella transversalis Fabricius (Coleoptera: Coccinellidae), by determining the stage specific predation and developmental attributes of these two ladybirds reared on these diets. The conversion efficiencies and growth rates of young (first, second and third) larvae of both species of ladybirds were higher than those of fourth instar larvae and the consumption rates of fourth instar were higher than those of young larvae when fed on the three diets. When fed aphids the pre-imaginal development was faster, the consumption rates, conversion efficiencies and growth rates higher, adults bigger and mortality lower than when fed on conspecific eggs. The larvae of C. septempunctata consumed and completed their development when fed eggs of C. transversalis but the first instar larvae of C. transversalis did not consume the eggs of C. septempunctata and died of starvation. The dominance of C. septempunctata over C. transversalis in agricultural fields may be due to it consuming and utilizing aphids more efficiently and as a consequence growing faster and suffering a lower mortality along with its ability to consume and complete its development on eggs of C. transversalis. Thus, both these predators may not continue to coexist as predators of the pea aphid in agricultural fields since C. septempunctata may become a greater threat to C. transversalis in the future.

show abstract

“…Negative impacts of ladybird larvae on larval performances of aphidophagous insects have been reported for various taxonomic groups (e.g., Ferguson and Stiling, 1996;Lucas et al, 1998;Felix and Soares, 2004). In particular, ladybird larvae often reduce survivorship of related species in acting as intraguild predators (Yasuda and Ohnuma, 1999;Hindayana et al, 2000;Meyhofer and Hindayana, 2000).…”

Section: Introductionmentioning

confidence: 99%

Oviposition preference of two hoverfly species in response to risk of intraguild predation

Putra

Yasuda

Sato

2009

Appl. Entomol. Zool.

View full text Add to dashboard Cite

Two experiments were performed in the laboratory to understand the relationships between oviposition preference and larval performance of the two predatory hoverfly species, Episyrphus balteatus de Geer and Metasyrphus corollae Fabricius. We first conducted laboratory experiments to understand the nature and relative strengths of intraguild predation between the larvae of three ladybird species, Harmonia axyridis Pallas, Propylea japonica Thunberg, and Scymnus posticalis Sicard, and two predatory hoverfly species. The interactions between larvae of the three ladybird and two hoverfly species differed depending on the species and developmental stages involved: the relationships between H. axyridis or S. posticalis and the two hoverfly larvae tended to be asymmetric with H. axyridis being a superior species and S. posticalis an inferior species, although the reverse was true for each of these two species when small larvae were paired with large larvae of the hoverflies. The ladybird, P. japonica, had both asymmetric and symmetric relationships depending on the hoverfly species with which it interacted. Secondly, we tested the preference and performance hypothesis for hoverflies, by determining whether hoverfly oviposition preference was related to the risk of intraguild predation posed by the presence of a ladybird larva in an aphid colony. Oviposition preference in relation to larval performance of the two hoverflies differed between the species: E. balteatus females tended to adjust their rate of eggs laying in response to the presence of ladybird larvae, while similar responses of M. corollae females were weak. The relationship between oviposition preference and larval performance in hoverflies is discussed.

show abstract

Intraguild predation between the aphidophagous ladybird beetles Harmonia axyridis and Coccinella undecimpunctata (Coleoptera: Coccinellidae): the role of body weight

Cited by 72 publications

References 26 publications

Defining invasiveness and invasibility in ecological networks

Defining invasiveness and invasibility in ecological networks

Stage specific consumption and utilization of aphids, conspecific and heterospecific eggs by two species of Coccinella (Coleoptera: Coccinellidae)

Oviposition preference of two hoverfly species in response to risk of intraguild predation

Contact Info

Product

Resources

About