2014
DOI: 10.1007/s10340-014-0597-z
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Intraguild predation between an exotic and a native coccinellid in Argentina: the role of prey density

Abstract: Harmonia axyridis Pallas is a generalist predator native to Asia. It has been released both for classical and neoclassical biological control programs worldwide. Its presence has led to new ecological associations and it has been associated with the decline of indigenous natural enemies, notably ladybirds. These declines have been attributed to competition for resources and intraguild predation (IGP). H. axyridis was introduced in Argentina in 1986 to control the aphid Myzus persicae, although native coccinell… Show more

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Cited by 53 publications
(40 citation statements)
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References 51 publications
(48 reference statements)
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“…After encountering a heterospecific competitor, H. axyridis also drops less easily from a plant leaf than other coccinellid species. Poorly-fed H. axyridis larvae feed more voraciously on intraguild competitors than well-nourished ones (Ingels et al, 2015;Mirande et al, 2015). Indeed, small and poorly-fed larvae may have more to gain, from a fitness perspective, than well-nourished larvae, for whom food is not critical for survival.…”
Section: Intraguild Predationmentioning
confidence: 99%
“…After encountering a heterospecific competitor, H. axyridis also drops less easily from a plant leaf than other coccinellid species. Poorly-fed H. axyridis larvae feed more voraciously on intraguild competitors than well-nourished ones (Ingels et al, 2015;Mirande et al, 2015). Indeed, small and poorly-fed larvae may have more to gain, from a fitness perspective, than well-nourished larvae, for whom food is not critical for survival.…”
Section: Intraguild Predationmentioning
confidence: 99%
“…Harmonia axyridis (Pallas) and Scymnus argentinicus (Weise) are other coccinellid species occasionally present in the study area but their relative abundance and temporal synchrony with E. connexa and C. sanguinea have not been yet explored. Mirande et al (2015) found that H. axyridis was the IG predator and E. connexa the IG prey in laboratory experiments. Moreover, the food web could include alternative food to predators.…”
Section: Discussionmentioning
confidence: 96%
“…Mirande et al. () found that H. axyridis was the IG predator and E. connexa the IG prey in laboratory experiments. Moreover, the food web could include alternative food to predators.…”
Section: Discussionmentioning
confidence: 99%
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“…Natural enemies provide ecosystem services, including biological control of insect pests (Landis et al., ; Zappalà et al., ; Biondi et al., ; Perović et al., ). In most ecological communities, pest species are often linked with multiple predator species, involving intraguild interactions in which predators compete with or even kill each other (Polis et al., ; Sih et al., ; Barrios‐O'Neill et al., ; Mirande et al., ; Naselli et al., ). Interactions between predator and prey and the subsequent community structure and stability could be altered by additional predators (Sih et al., ; Bolker et al., ; Vonesh & Osenberg, ; Mills, ; Lundgren et al., ; Jaworski et al., ; Barrios‐O'Neill et al., ; Anderson & Whiteman, ).…”
Section: Introductionmentioning
confidence: 99%