Edge effects and intraguild predation in native and introduced centipedes: evidence from the field and from laboratory microcosms

Hickerson, Cari‐Ann M.; Anthony, Carl D.; Walton, B. Michael

doi:10.1007/s00442-005-0197-y

Cited by 31 publications

(25 citation statements)

References 54 publications

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“…We were somewhat surprised to discover that crickets did not discriminate between blank filter paper and filter paper exposed to centipedes fed fly larvae (experiment 1). Centipedes are voracious, generalist predators (Hickerson et al. 2005), and they readily accepted crickets as prey in our study.…”

Section: Discussionmentioning

confidence: 86%

“…Secondly, in terrestrial arthropods, cross‐subphylum experiments are uncommon, and they have the potential to serve as strong tests of risk sensitivity models. Thirdly, manipulative experiments involving centipedes appear to be extremely rare despite the reality that centipedes are top, generalist predators in many food webs (Hickerson et al. 2005).…”

Section: Introductionmentioning

confidence: 99%

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Chemical‐Mediated Predator Avoidance in the European House Cricket (Acheta domesticus) is Modulated by Predator Diet

2012

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Chemical information often mediates interactions between predators and prey, and threat‐sensitivity theory includes predictions that prey species should respond to chemical signatures of predators in a manner that is commensurate with the level of the assessed threat. Using the European house cricket (Acheta domesticus), we explored the influence of diet‐derived cues from the centipede Scolopocryptops sexspinosus on anti‐predator behavior in three laboratory experiments. In experiment 1, we compared the amount of time that adult female crickets spent on untreated filter paper and filter paper exposed to centipedes fed either the larvae of Hermetia illucens (black soldier fly), crickets, or a mixture of fly larvae and crickets. We discovered that crickets spent significantly less time on filter paper exposed to centipedes fed crickets only or a mixture of crickets and fly larvae compared with blank filter paper or filter paper exposed to centipedes fed fly larvae only. In our second experiment, we compared the amount of time that crickets spent on blank filter paper and filter paper exposed to adult female conspecifics to rule out the possibility that crickets simply avoid all filter paper exposed to metabolic by‐products, and crickets exhibited no discrimination. In our third experiment, we tested the potential effects of diet order on anti‐predatory behaviors. Specifically, we compared the amount of time that adult female crickets spent on filter paper exposed to centipedes fed fly larvae followed by crickets and filter paper exposed to centipedes fed crickets followed by fly larvae. We discovered no diet sequence effect. Our study demonstrates that European house crickets are sensitive to the chemical cues of their centipede predators, but only when centipedes have fed upon crickets.

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Chemical‐Mediated Predator Avoidance in the European House Cricket (Acheta domesticus) is Modulated by Predator Diet

2012

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“…Although positive interactions between predator species can increase impacts on herbivore populations (e.g., , and elevated spider diversity has been shown to increase impacts on herbivores (Riechert and Lawrence 1997), C. mildei may single-handedly increase ecosystem services in vineyards through superior predatory ability. Hickerson et al (2005) similarly hypothesized that nonnative centipedes were at a competitive disadvantage in the interiors of forest fragments relative to the forest edge. Thus, reduced spider species diversity in vineyards may partly be due to C. mildei, and immigration rates of native spider species may be insufficient to counteract this effect, except at the vineyard edge.…”

Section: Discussionmentioning

confidence: 99%

Ecosystem services in the face of invasion: the persistence of native and nonnative spiders in an agricultural landscape

Hogg

Daane

2011

Ecological Applications

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The presence of intact natural ecosystems in agricultural landscapes can mitigate losses in the diversity of natural enemies and enhance ecosystem services. However, native natural enemies may fail to persist in agroecosystems if invaders dominate species interactions. In this study, native and nonnative spiders were sampled along transects that extended from oak woodland and riparian zones into surrounding California vineyards, to assess the role of natural habitat as a source for spider biodiversity in the vineyard landscape, and to compare the dominance of exotic Cheiracanthium spiders between habitats. Many spider species were more abundant in natural habitat than in vineyards, and numbers of spiders and spider species within vineyards were higher at the vineyard edge adjacent to oak woodland. These results suggest that natural habitat is a key source for spiders in vineyards. The positive effect of oak woodland on the vineyard spider community extended only to the vineyard edge, however. Proportions of Cheiracanthium spiders increased dramatically in the vineyard, while numbers of native wandering spiders (the native ecological homologues of Cheiracanthium spiders) decreased. Dispersal limitation and strong habitat preferences may have prevented native wandering spiders from establishing far from the vineyard edge. Exotic Cheiracanthium spiders, in contrast, may possess specific adaptations to vineyards or to a wide range of habitats. Results suggest that the ecosystem services provided by intact natural habitat may be limited in agricultural landscapes that are dominated by invasive species.

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“…Ziploc ® plastic containers (20 cm long × 12 cm wide × 6 cm deep) were used as microcosms (Hickerson et al 2005). Six evenly spaced air holes were made in the lid of each microcosm using a dissecting probe.…”

Section: Microcosm Constructionmentioning

confidence: 99%

Invasive Asian earthworms of the genus Amynthas alter microhabitat use by terrestrial salamanders

et al. 2015

Self Cite

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Invasive earthworms are rapidly transforming detrital communities in North America. Recent studies have investigated the effects of European earthworms, whereas Asian earthworms, such as species of the genus Amynthas Kinberg, 1867, remain understudied. Amynthas is a surface-dwelling earthworm that voraciously consumes the litter layer of temperate forest floor habitats. The accumulation of detritus is important for the terrestrial Eastern Red-backed Salamanders (Plethodon cinereus (Green, 1818)) because this microhabitat provides the matrix through which salamanders travel when foraging, searching for mates, and dispersing. We examined the effect of Amynthas on the activity of "naïve" (no history of co-occurrence with Amynthas) and "experienced" (recent co-occurrence with Amynthas) salamanders in laboratory microcosms. We hypothesized that earthworms would disturb normal salamander activity through the reduction of leaf litter and physical impediment, with greater negative effects on naïve salamanders encountering this "novel" invasive species. Consistent with published studies, earthworm presence significantly decreased leaf-litter mass over time. Prior experience with earthworms did not appear to influence salamander response. However, earthworm presence had a significant effect on salamander activity, with salamanders exhibiting increased movement, cover-object use, and co-occurrence under cover objects with earthworms as the study progressed. Unnecessary movement has the potential to incur fitness costs to salamanders in the form of energetic expenditure and increased exposure to predators. Résumé :Les lombriciens envahissants transforment rapidement les communautés détritiques d'Amérique du Nord. Si des études récentes se sont penchées sur les effets des lombriciens européens, les lombriciens asiatiques tels qu'espèces du genre Amynthas Kinberg, 1867 demeurent sous-étudiés. Amynthas est un ver de terre vivant à la surface du sol qui consomme voracement la couche de litière d'habitats de tapis forestier de forêts tempérées. L'accumulation de détritus est importante pour les salamandres cendrées (Plethodon cinereus (Green, 1818)) terrestres parce que ce microhabitat constitue la matrice à travers laquelle les salamandres se déplacent quand elles s'approvisionnent, cherchent un compagnon ou se dispersent. Nous avons examiné les effets d'Amynthas sur l'activité de salamandres « naïves » (aucun antécédent de cooccurrence avec Amynthas) et « expérimentées » (cooccurrence récente avec Amynthas) dans des microcosmes en laboratoire. Nous avions postulé que les lombriciens perturberaient l'activité normale des salamandres en réduisant la couverture de feuilles mortes et les obstacles physiques, les effets négatifs les plus importants étant sur les salamandres naïves mises en présence de cette « nouvelle » espèce envahissante. Conformément à des études publiées, la présence de lombriciens se traduisait par une diminution significative de la masse de la litière de feuilles mortes dans le temps. Une expérience préalable ...

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Edge effects and intraguild predation in native and introduced centipedes: evidence from the field and from laboratory microcosms

Cited by 31 publications

References 54 publications

Chemical‐Mediated Predator Avoidance in the European House Cricket (Acheta domesticus) is Modulated by Predator Diet

Chemical‐Mediated Predator Avoidance in the European House Cricket (Acheta domesticus) is Modulated by Predator Diet

Ecosystem services in the face of invasion: the persistence of native and nonnative spiders in an agricultural landscape

Invasive Asian earthworms of the genus Amynthas alter microhabitat use by terrestrial salamanders

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