Predator-prey role reversals, juvenile experience and adult antipredator behaviour

Choh, Yasuyuki; Ignácio, Maíra; Sabelis, Maurice W.; Janssen, Arne

doi:10.1038/srep00728

Cited by 70 publications

(50 citation statements)

References 58 publications

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“…This interaction can only happen when the turtle is small enough for the morphotraits of the bug to allow it to consume the turtle, and as such will vary throughout the developmental cycle of both species. Choh et al () demonstrated through behavioral assays that prey which evaded predation when young were more likely to consume juvenile predators than the ‘naïve’ individuals; their past interactions shaped behavioral traits that alter the network structure over time. These examples show that trait‐based effects on networks can be observed even in the absence of genotypic variation (although we discuss this in the next section).…”

Section: The Dynamic Nature Of Ecological Interaction Networkmentioning

confidence: 99%

Beyond species: why ecological interaction networks vary through space and time

Poisot

Stouffer

Gravel

2014

Oikos

396

385

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Community ecology is tasked with the considerable challenge of predicting the structure, and properties, of emerging ecosystems. It requires the ability to understand how and why species interact, as this will allow the development of mechanism-based predictive models, and as such to better characterize how ecological mechanisms act locally on the existence of inter-specific interactions. Here we argue that the current conceptualization of species interaction networks is ill-suited for this task. Instead, we propose that future research must start to account for the intrinsic variability of species interactions, then scale up from here onto complex networks. This can be accomplished simply by recognizing that there exists intra-specific variability, in traits or properties related to the establishment of species interactions. By shifting the scale towards population-based processes, we show that this new approach will improve our predictive ability and mechanistic understanding of how species interact over large spatial or temporal scales.Although species interactions are the backbone of ecological communities, we have little insights on how (and why) they vary through space and time. In this article, we build on existing empirical literature to show that the same species may happen to interact in different ways when their local abundances vary, their trait distribution changes, or when the environment affects either of these factors. We discuss how these findings can be integrated in existing frameworks for the analysis and simulation of species interactions. Synthesis

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Section: The Dynamic Nature Of Ecological Interaction Networkmentioning

confidence: 99%

Beyond species: why ecological interaction networks vary through space and time

Poisot

Stouffer

Gravel

2014

Oikos

396

385

View full text Add to dashboard Cite

show abstract

“…This interaction can only happen when the turtle is small enough for the morphotraits of the bug to allow to consume it, and as such will vary throughout the developmental cycle of both species. Choh et al (2012) demonstrated through behavioral assays that preys which evaded predation when young were more likely to predate juvenile predators than the “naive” individuals; their past interactions shaped behavioral traits that alter the network structure over time. These examples show that trait-based effects on networks can be observed even in the absence of genotypic variation (although we discuss this in the next section).…”

Section: Traits Matching In Space and Timementioning

confidence: 99%

Beyond species: why ecological interaction networks vary through space and time

Poisot

Stouffer

Gravel

2014

Preprint

149

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Working paper Community ecology is tasked with the considerable challenge of predicting the structure, and properties, of emerging ecosystems. It requires the ability to understand how and why species interact, as this will allow the development of mechanism-based predictive models, and as such to better characterize how ecological mechanisms act locally on the existence of inter-specific interactions. Here we argue that the current conceptualization of species interaction networks is illsuited for this task. Instead, we propose that future research must start to account for the intrinsic variability of interaction networks. This can be accompslihed simply by recognizing that there exists intra-specific variability, in traits or properties related to the establishment of species interactions. By shifting the scale towards population-based processes, we show that this new approach will improve our predictive ability and mechanistic understanding of how species interact over biogeographical scales.

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“…Various aspects of IGP in both adult and immature phytoseiid mites have been considered in previous investigations (e.g., Yao and Chant 1989;Croft 1993, 1997;Croft et al , 1998Monetti and Croft 1997;Walzer et al 2015). Anti-predator behaviour in response to IGP can be exhibited by predatory mites increasing the chances of coexistence among interacting species (Walzer and Schausberger 2011b, 2013aChoh et al 2010Choh et al , 2012Choh et al , 2014. The propensity to IGP is related to diet specialization Croft 1999, 2000a, b).…”

Section: Introductionmentioning

confidence: 95%

Predation on heterospecific larvae by adult females of Kampimodromus aberrans, Amblyseius andersoni, Typhlodromus pyri and Phytoseius finitimus (Acari: Phytoseiidae)

2015

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The predatory mites Kampimodromus aberrans (Oudemans), Amblyseius andersoni (Chant), Typhlodromus pyri Scheuten and Phytoseius finitimus Ribaga are important biological control agents in orchards and vineyards in Europe and elsewhere. They can coexist in the same habitat and engage in intraguild predation (IGP). In the laboratory we evaluated the longevity, fecundity and prey consumption of females of these predatory mites fed with heterospecific larvae considered as intraguild prey (IG-prey). The survival and age-specific oviposition curves of predatory mites fed with pollen were compared with those obtained on different IG-prey. We assessed the prey conversion rate into eggs expressed by the different IG-predator as an indicator of their capacity to persist when prey is diminishing. Results suggest that A. andersoni should be considered the superior intraguild predator but the least efficient in food conversion. Phytoseius finitimus appeared to suffer from intraguild predation, and its efficiency in food conversion was not superior to that of K. aberrans and T. pyri. The profiles of K. aberrans and T. pyri were less definite. The comparison between pollen and IG-prey diets confirmed the positive effect of pollen on the fecundity of all four predatory mite species. Fecundity was higher on pollen than on IG-prey. We can suggest that A. andersoni have the potential to exclude the other predatory mites only at high food resource availability, whereas low levels of food availability can favor the other species in IGP.

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Predator-prey role reversals, juvenile experience and adult antipredator behaviour

Cited by 70 publications

References 58 publications

Beyond species: why ecological interaction networks vary through space and time

Beyond species: why ecological interaction networks vary through space and time

Beyond species: why ecological interaction networks vary through space and time

Predation on heterospecific larvae by adult females of Kampimodromus aberrans, Amblyseius andersoni, Typhlodromus pyri and Phytoseius finitimus (Acari: Phytoseiidae)

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