Insect‐Associated Microorganisms and Their Possible Role in Outbreaks

Cardoza, Yasmin J.; Hofstetter, Richard W.; Vega, Fernando E.

doi:10.1002/9781118295205.ch8

Cited by 4 publications

(2 citation statements)

References 122 publications

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“…We could not attribute caterpillar mortality in the field or laboratory to pathogens, but entomopathogenic fungi or other factors may have gone undetected during the egg stage. Unidentified diseases were suspected of killing many caterpillars being reared in the laboratory during the 2003–2004 koa moth outbreak on Maui (Haines et al, 2009), and microorganisms may affect insect outbreak dynamics in a variety of complex ways and in concert with other factors (Cardoza et al, 2012; Elderd et al, 2013; Ewald, 1987; Páez et al, 2017; Royama et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Hypotheses and lessons from a native moth outbreak in a low‐diversity, tropical rainforest

et al. 2022

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Outbreaks of defoliating insects in low-diversity tropical forests occur infrequently but provide valuable insights about outbreak ecology in temperate environments and in general. We investigated an extensive outbreak of the endemic koa moth (Scotorythra paludicola), which defoliated endemic koa trees (Acacia koa) over a third of their range on Hawai'i Island during 2013 and 2014. At Hakalau Forest National Wildlife Refuge, we observed the dynamics of the outbreak and its effects on host trees, nutrient cycling, and insectivorous consumers in reforestation stands of densely planted koa and in natural forest stands of mixed koa and ' ohi'a (Metrosideros polymorpha). Contrary to predictions of the resource concentration hypothesis, caterpillar biomass and defoliation severity were greater in the natural forest sites, where koa density was relatively low. Caterpillars preferentially consumed the most palatable koa foliage type (phyllodes), and koa initially refoliated with the least palatable foliage type (true leaves). Lightly defoliated small trees refoliated

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Section: Discussionmentioning

confidence: 99%

Hypotheses and lessons from a native moth outbreak in a low‐diversity, tropical rainforest

et al. 2022

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“…On the other hand, these associations also contribute to micro-evolutionary processes in the insects, leading to diversification ( Sanchez-Contreras & Vlisidou 2008 ). The symbiotic interactions with bacteria mainly developed within the insect gut ( Hooper 2001 ); some insect species rely on their symbiotic microorganisms for enhanced food digestion, communication, nutrition or defense ( Cardoza et al 2012 ; Engel & Moran 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Metabarcoding of Parasitic Wasp, Dolichogenidea metesae (Nixon) (Hymenoptera: Braconidae) That Parasitizing Bagworm, Metisa plana Walker (Lepidoptera: Psychidae)

Badrulisham¹,

Abdul-Latiff²,

Zain³

et al. 2022

TLSR

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Microbiome studies of the parasitoid wasp, Dolichogenidea metesae (Nixon) (Hymenoptera, Braconidae) are important because D. metesae has potential as a biological control agent to suppress the pest, Metisa plana Walker (Lepidoptera, Psychidae). Three field populations of parasitic wasps with different Integrated Pest Management (IPM) practices to control M. plana collected from Perak state (Tapah) and Johor state (Yong Peng and Batu Pahat districts) in Peninsular Malaysia were studied. Bacterial community composition and structure were analysed using α and β diversity metrics. Proteobacteria (83.31%) and Bacteroidetes (6.80%) were the most dominant phyla, whereas unknown family from order Rhizobiales was the most abundant family found in all populations followed by Pseudomonadaceae. Family Micrococcaceae was absent in Tapah. Rhizobiales gen. sp. and Pseudomonas sp. were abundant in all populations. Pearson’s correlation analysis showed the strongest correlation between individuals of Batu Pahat and Yong Peng (r = 0.89827, p < 0.05), followed by Tapah and Yong Peng with r = 0.75358, p < 0.05 and Batu Pahat and Tapah (r = 0.69552, p < 0.05). We hypothesize that low diversity and richness in Tapah might be due to direct and indirect effect of insecticides application. This preliminary data was the first study to do inventory of the microbiomes in the gut of the D. metesae.

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The role of insect gut microbiota in host fitness, detoxification and nutrient supplementation

Shamjana,

Vasu,

Hembrom

et al. 2024

Antonie van Leeuwenhoek

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Insect‐Associated Microorganisms and Their Possible Role in Outbreaks

Cited by 4 publications

References 122 publications

Hypotheses and lessons from a native moth outbreak in a low‐diversity, tropical rainforest

Hypotheses and lessons from a native moth outbreak in a low‐diversity, tropical rainforest

Metabarcoding of Parasitic Wasp, Dolichogenidea metesae (Nixon) (Hymenoptera: Braconidae) That Parasitizing Bagworm, Metisa plana Walker (Lepidoptera: Psychidae)

The role of insect gut microbiota in host fitness, detoxification and nutrient supplementation

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