Mitchel E. Bourne
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View article: Aphid parasitism alters induced plant responses allowing a hyperparasitoid to locate its hidden parasitoid host
Aphid parasitism alters induced plant responses allowing a hyperparasitoid to locate its hidden parasitoid host Open
Summary Plants typically host insect communities composed of multiple trophic levels that are intricately linked through interactions mediated by the shared food plant. Hyperparasitoids are top‐level carnivores in such systems, preying on …
View article: The effectiveness of indirect plant defence is dependent on plant competition
The effectiveness of indirect plant defence is dependent on plant competition Open
The net benefit of indirect defence strategies to plant fitness in natural conditions is likely dependent on the ecological context. Little attention has been given to the relationship between plant–plant competition and the effect of herb…
View article: Caterpillar–parasitoid interactions: species-specific influences on host microbiome composition
Caterpillar–parasitoid interactions: species-specific influences on host microbiome composition Open
There is increasing evidence that host–parasitoid interactions can have a pronounced impact on the microbiome of host insects, but it is unclear to what extent this is caused by the host and/or parasitoid. Here, we compared the internal an…
View article: Host location by arthropod vectors: are microorganisms in control?
Host location by arthropod vectors: are microorganisms in control? Open
Vector-borne microorganisms are dependent on their arthropod vector for their transmission to and from vertebrates. The 'parasite manipulation hypothesis' states that microorganisms are likely to evolve manipulations of such interactions f…
View article: The effect of maternal factors of Cotesia glomerata (Braconidae) on its larval competitor Hyposoter ebeninus (Ichneumonidae)
The effect of maternal factors of Cotesia glomerata (Braconidae) on its larval competitor Hyposoter ebeninus (Ichneumonidae) Open
Parasitoids of different species frequently develop in the same host, a phenomenon referred to as "multiparasitism". Although the outcomes of multiparasitism have been well-documented in the literature, the underlying mechanisms, particula…
View article: Parasitism causes changes in caterpillar odours and associated bacterial communities with consequences for host-location by a hyperparasitoid
Parasitism causes changes in caterpillar odours and associated bacterial communities with consequences for host-location by a hyperparasitoid Open
Microorganisms living in and on macroorganisms may produce microbial volatile compounds (mVOCs) that characterise organismal odours. The mVOCs might thereby provide a reliable cue to carnivorous enemies in locating their host or prey. Para…
View article: Raw Y-tube olfactometer data
Raw Y-tube olfactometer data Open
Preference of the hyperparasitoid B. galactopus for caterpillar body odours: of (1) C. glomerata parasitised and unparasitised P. brassicae caterpillars. (2) H. ebeninus parasitised and unparasitised P. brassicae caterpillars Thi…
View article: Raw data of the manuscript: "Negative effects of <i>Cotesia glomerata</i> on its intrinsic competitor <i>Hyposoter ebeninus</i> are not caused by polydnavirus and venom"
Raw data of the manuscript: "Negative effects of <i>Cotesia glomerata</i> on its intrinsic competitor <i>Hyposoter ebeninus</i> are not caused by polydnavirus and venom" Open
This is the raw data of the manuscript entitled "Negative effects of Cotesia glomerata on its intrinsic competitor Hyposoter ebeninus are not caused by polydnavirus and venom".Block: represent the four time blocks in which the experiment w…
View article: Raw zOTU data per sample
Raw zOTU data per sample Open
Caterpillar-associated bacterial communities of untreated, starved or starved then external microbiome disrupted (EMD) C. glomerata parasitised or unparasitised caterpillars (P. brassicae) (1) Both external and internal bacterial zOTU coun…
View article: Raw VOC data per sample
Raw VOC data per sample Open
Volatile compounds detected in the headspace of of untreated, starved or starved then surface sterilised C. glomerata parasitised or unparasitised caterpillars (P. brassicae). Amounts of individual compounds are given as the of peak height…
View article: <b>Bourne </b><b><i>et al., </i></b><b>Hyperparasitoids exploit plant-volatiles to locate their parasitoid host despite non-host herbivore interference</b> Data from the Y-tube olfactometer tests depicted in Fig 4-5
<b>Bourne </b><b><i>et al., </i></b><b>Hyperparasitoids exploit plant-volatiles to locate their parasitoid host despite non-host herbivore interference</b> Data from the Y-tube olfactometer tests depicted in Fig 4-5 Open
The preference of naive Lysibia nana females to plant odours in single herbivory context. This was tested in a Y-tube olfactometer, including pair-wise comparisons of plants induced by: Host-containing caterpillar single herbivory vs undam…
View article: Hyperparasitoid behaviour to injected caterpillars
Hyperparasitoid behaviour to injected caterpillars Open
Results of the no-choice assay to assess the role of Wolbachia in hyperparasitoid host location. Bar plots showing (a) the average time (±SE) until first contact of B. galactopus with the caterpillar host P. brassicae, and (b) total mounti…
View article: <b>Bourne </b><b><i>et al., </i></b><b>Hyperparasitoids exploit plant-volatiles to locate their parasitoid host despite non-host herbivore interference</b> Data from the Common garden experiment depicted in Fig 6-7
<b>Bourne </b><b><i>et al., </i></b><b>Hyperparasitoids exploit plant-volatiles to locate their parasitoid host despite non-host herbivore interference</b> Data from the Common garden experiment depicted in Fig 6-7 Open
The hyperparasitism rate of Cotesia glomerata cocoon clutches on the plant level in the field: Effect of herbivory type and treatment. Clutches were attached and recollected after five days from plants with different herbivore induction tr…
View article: Parasitoids affect plant responses through their host <i>Pieris brassicae</i> , but not for the benefit of their own performance
Parasitoids affect plant responses through their host <i>Pieris brassicae</i> , but not for the benefit of their own performance Open
Upon parasitism, many parasitoids inject symbiotic viruses and venom into their host. Thereby, they modify the hosts physiology including its saliva composition and, in turn, plant perception of herbivory. It has been hypothesised that par…
View article: The enemy of my enemy is not always my friend: Negative effects of carnivorous arthropods on plants
The enemy of my enemy is not always my friend: Negative effects of carnivorous arthropods on plants Open
Plants are members of complex communities of which arthropods are the most speciose members. The role of carnivores in shaping the outcome of multi‐trophic interactions by top‐down control of herbivores has been well studied. Particularly,…
View article: Insect species richness affects plant responses to multi‐herbivore attack
Insect species richness affects plant responses to multi‐herbivore attack Open
Summary Plants are often attacked by multiple insect herbivores. How plants deal with an increasing richness of attackers from a single or multiple feeding guilds is poorly understood. We subjected black mustard ( Brassica nigra ) plants t…
View article: Additional file 1 of Parasitism by endoparasitoid wasps alters the internal but not the external microbiome in host caterpillars
Additional file 1 of Parasitism by endoparasitoid wasps alters the internal but not the external microbiome in host caterpillars Open
Additional file 1: Table S1. zOTUs bacteria. Identification of bacterial zero radius operational taxonomic units (ZOTUs) according to the Silva v1.23 database and distribution over the investigated samples. Table S2. OTUs fungi. Identifica…
View article: Exploiting chemical ecology to manage hyperparasitoids in biological control of arthropod pests
Exploiting chemical ecology to manage hyperparasitoids in biological control of arthropod pests Open
Insect hyperparasitoids are fourth trophic level organisms that commonly occur in terrestrial food webs, yet they are relatively understudied. These top‐carnivores can disrupt biological pest control by suppressing the populations of their…