Judas Beetles: Discovering Cryptic Breeding Sites by Radio-Tracking Coconut Rhinoceros Beetles,<i>Oryctes rhinoceros</i>(Coleoptera: Scarabaeidae)

Moore, Aubrey; Barahona, Diego C.; Lehman, Katherine A; Skabeikis, D. D.; Iriarte, Ian R.; Siderhurst, Matthew S.

doi:10.1093/ee/nvw152

Cited by 7 publications

(10 citation statements)

References 28 publications

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“…Therefore, this triatomine was in a cryptic location that would have been missed during routine inspection. The discovery of this cryptic resting habitat is similar to a recent study, which used tagged ‘judas beetles’ to find cryptic breeding sites of coconut rhinoceros beetles (Scarabaeidae) ( Moore et al 2017 ).…”

Section: Discussionsupporting

confidence: 73%

A Pilot Radio Telemetry Field Study of Triatomine Vectors (Hemiptera: Reduviidae) of the Chagas Disease Parasite

Hamer

Bejcek

Valdez

et al. 2018

Journal of Medical Entomology

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We conducted the first pilot radio telemetry study of hematophagous arthropods by placing transmitters on wild-caught triatomine insects (‘kissing bugs’), vectors of the Chagas disease parasite. In Texas—a recognized hotspot for triatomine diversity and locally-acquired human and animal Chagas disease—we tagged five female and four male Triatoma gerstaeckeri (Stål) (Hemiptera: Reduviidae), as well as one female and one male Triatoma sanguisuga (Leconte) (Hemiptera: Reduviidae) in three counties from 2015 to 2017. In comparative trials, placement of the transmitter on the dorsal side of the abdomen underneath the hemelytra wings, with the transmitter antenna shortened to 3 cm, yielded the best results. We tracked the movements of the 11 tagged bugs over an average of 4.8 d (range of 1 to 12 d) and detected 18 movement events with an average distance of 3.8 m (range of 1 to 20 m). This pilot study demonstrates the potential utility for using telemetry as a tool for studying fine-scale non-flight movement of triatomines and the discovery of cryptic resting habitats. Future studies using this or similar technologies to study movement and behavior of triatomines could test for site-fidelity of resting habitats and provide novel insight into aspects of vector biology that could be targeted in disease risk reduction efforts.

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Section: Discussionsupporting

confidence: 73%

A Pilot Radio Telemetry Field Study of Triatomine Vectors (Hemiptera: Reduviidae) of the Chagas Disease Parasite

Hamer

Bejcek

Valdez

et al. 2018

Journal of Medical Entomology

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“…The technique of using tagged individuals to find conspecifics, in species that are known to aggregate into groups, has been termed the Judas technique 33 . This technique has been employed against mammals 34 , birds 35 and fish 36 , but only recently against an insect pest (the Coconut rhinoceros beetle, Oryctes thinonceros ) 37 and here for the first time to our knowledge against a social insect.…”

Section: Introductionmentioning

confidence: 99%

Searching for nests of the invasive Asian hornet (Vespa velutina) using radio-telemetry

et al. 2018

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Asian hornets (Vespa velutina) are voracious predators of bees, and are the latest emerging threat to managed and wild pollinator populations in Europe. To prevent establishment or reduce the rate of spread of V. velutina, early detection and destruction of nests is considered the only option. Detection is difficult as their nests are well hidden and flying hornets are difficult to follow over long distances. We address this challenge by tracking individual V. velutina workers flying back to their nests using radio telemetry for the first time, finding five previously undiscovered nests, up to 1.33 km from hornet release points. Hornets can fly with 0.28 g tags if the tag:hornet ratio is less than 0.8. This method offers a step-change in options to tackle the spread of this invader, providing an efficient means of finding V. velutina nests in complex environments to manage this emerging threat to pollinators.

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“…was also first identified on Guam [16]. The Cycas-specific butterfly C. pandava was first observed in 2005 [18] and CRB was documented in 2007 [10][11][12][13].…”

Section: The Plantsmentioning

confidence: 99%

“…The invasion of Guam by CRB was first documented in 2007 [10][11][12][13]. A 2002 survey of Guam's forests indicated that coconut was the second most abundant tree species on Guam [14].…”

Section: Introductionmentioning

confidence: 99%

Burrowing activity of coconut rhinoceros beetle on Guam cycads

Marler

Matanane

Terry

2020

Communicative & Integrative Biology

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Guam's established population of non-native coconut rhinoceros beetle (CRB, Oryctes rhinoceros L.) began creating burrows in stem apices of several cycad species in a managed garden. We conducted an island-wide survey to determine the spatial patterns of CRB burrowing of stems of in situ Cycas micronesica. We also measured starch of healthy and unhealthy coconut leaf tissue and compared this with starch of cycad stem tissue. The starch concentration of the central unexpanded leaf in healthy Philippine coconut trees was ≈90 mg•g −1 , and that of unhealthy Guam coconut trees was ≈40 mg•g −1. The starch concentration of the tissue within the CRB burrow locations on C. micronesica trees was 145 mg•g −1. Burrowing of C. micronesica was restricted to female CRB adults and was found throughout the full latitudinal gradient of Guam. Our findings indicate Guam's unhealthy coconut trees are no longer nutrient-dense, and the female CRB population may have exhibited a phylogenetically distant host shift to the abundant C. micronesica plants for a starch-rich diet within the concepts of the 'ecological fitting' hypothesis. We add proximity to coconut tree habitats as a new threat to Guam's endangered C. micronesica population.

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Judas Beetles: Discovering Cryptic Breeding Sites by Radio-Tracking Coconut Rhinoceros Beetles,Oryctes rhinoceros(Coleoptera: Scarabaeidae)

Cited by 7 publications

References 28 publications

A Pilot Radio Telemetry Field Study of Triatomine Vectors (Hemiptera: Reduviidae) of the Chagas Disease Parasite

A Pilot Radio Telemetry Field Study of Triatomine Vectors (Hemiptera: Reduviidae) of the Chagas Disease Parasite

Searching for nests of the invasive Asian hornet (Vespa velutina) using radio-telemetry

Burrowing activity of coconut rhinoceros beetle on Guam cycads

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