2008
DOI: 10.14411/eje.2008.047
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Multitrophic interactions among plants, aphids, alternate prey and shared natural enemies - a review

Abstract: Abstract. Given the generalist tendencies of most predatory arthropods, it is widely thought that their impact on a particular prey species in a given habitat (e.g., an insect pest in a crop) will depend frequently on the local availability of other prey (which for omnivorous predators, can include plant resources, such as fruit and pollen). Thus, from a slightly different perspective, aphids, other herbivorous insects, and plants often may interact indirectly by sharing natural enemies. Such interactions may … Show more

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Cited by 37 publications
(28 citation statements)
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“…Most probably the predator was better able to attach to plants with reduced -wax bloom, and its search rate was elevated. Handling time of prey, Additional examples are provided by Lucas et al (2004) and Koch et al (2005) , as discussed further by Evans (2008) . Prey activity may infl uence the relative amounts of co -occurring prey consumed.…”
Section: Temperature ( °C) Predator Mean Number Eaten ( ±Sd) Estimatementioning
confidence: 99%
“…Most probably the predator was better able to attach to plants with reduced -wax bloom, and its search rate was elevated. Handling time of prey, Additional examples are provided by Lucas et al (2004) and Koch et al (2005) , as discussed further by Evans (2008) . Prey activity may infl uence the relative amounts of co -occurring prey consumed.…”
Section: Temperature ( °C) Predator Mean Number Eaten ( ±Sd) Estimatementioning
confidence: 99%
“…It is assumed that because they are best at exploiting aphids (Pettersson et al, 2005;Evans, 2008) aphidophagous ladybirds will grow better when feeding on aphids than on non-aphid prey. However, due to their short life span and patchy distribution, the availability of aphids is quite uncertain, which may sometimes result in ladybirds starving in the field.…”
Section: Introductionmentioning
confidence: 99%
“…The reason for these differences are unknown, but they probably relate to the initial conditions of the establishing aphid population (i.e. localised immigration of winged immigrants and the resident overwintering population), microclimatic and topographical differences, differences in soil fertility influencing crop growth and differences in the impact of natural enemies (Irwin et al 2007;Evans 2008).…”
Section: Discussionmentioning
confidence: 99%