The Role of Enemy-Mediated Competition in Determining Fitness of a Generalist Herbivore

Beshai, Ryan A.; Barnes, E. E.; Murphy, John M.

doi:10.3958/059.044.0108

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Many invasive lepidopteran pests compete with native species. For example, Malacosoma neustria can interfere with the adaptability of Hlyphantria cunea larvae to the surrounding environment (Beshai et al 2019), and S. frugiperda larvae are more aggressive than H. armigera larvae (José et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

Wang,

Mbiza,

et al. 2024

Journal of Asia-Pacific Entomology

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Section: Discussionmentioning

confidence: 99%

Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

Wang,

Mbiza,

et al. 2024

Journal of Asia-Pacific Entomology

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“…The fall webworm in Europe, however, was rated as a quarantine alien invasive insect shortly after its introduction into Europe [57,58]. In summary, the time between its introduction into Europe and the control measures might be associated with the narrower niche breadth and smaller potential ranges of the fall webworm in Europe compared with the fall webworm in North America, though other factors, such as host plant monocultures [61] and predation pressure [62], may also play an important role.…”

Section: Discussionmentioning

confidence: 99%

Niche and Range Shifts of the Fall Webworm (Hyphantria cunea Dury) in Europe Imply Its Huge Invasion Potential in the Future

Nie

Yang

Cao

et al. 2023

Insects

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The fall webworm (Hyphantria cunea Dury) has a strong impact on agricultural systems in Europe. However, its invasive potential, which was inherited from its native niche in North America, remains unknown. Here, we investigated the climatic niche and range shifts of the fall webworm in Europe and compared them with those in native North America, then assessed the worms’ invasive potential in Europe. Compared with the fall webworm in Europe, those in North America survived in more diverse climatic conditions, which was closely associated with their broader niche and larger potential ranges in Europe. If the fall webworm in Europe could exploit the native niche inherited from those in North America to adapt to climatic conditions in Europe, their potential ranges in Europe could be 5.5-fold those based on the niche as introduced in Europe. The potentially unfilled ranges of the fall webworm in Europe were mainly detected in vast regions of Europe, excluding Norway, Sweden, Finland, North Russia, Hungary, Croatia, Romania, and Ukraine, suggesting that, without strict control, these vast regions might be preferably invaded by the fall webworm in Europe in the future. Therefore, strict control against its invasion is needed. Given that small niche shifts in this invasive insect could result in large range shifts, the niche shifts represent a more sensitive indicator of invasion risk than range shifts.

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Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

Wang,

Mbiza,

Zhang

et al. 2023

Preprint

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Spodoptera frugiperda has co-occurred with the Spodoptera litura in corn fields since it invaded China on December, 2018. In our process of rearing S. frugiperda and S. litura larvae in the lab, we discovered that when the larvae of S. litura and S. frugiperda were on the same host plant, the two-way predation between them occurred. However, a detailed study on this phenomenon has not been reported currently. Therefore, the study on the two-way predation between larvae of S. frugiperda and S. litura was performed under mimicing natural conditions including the presence or absence of maize leaves. The results showed that 4th instar larvae of S. frugiperda could prey actively on the 3rd instar larvae of S. litura under natural conditions in the greenhouse, and there was two-way predation between S. frugiperda and S. litura larvae in either the presence or absence of maize leaves in the lab. In addition, the difference in the daily predation number of S. frugiperda larvae (4th-6th instar) on young larvae of S. litura(1st-3rd instar) was significant between presence and absence of maize leaves. Similarly, the difference in the daily predation number of S. litura larvae (4th-6th instar) on S. frugiperda younglarvae (1st-3rd instar) was very significant between presence and absence of maize leaves. These results confirm that two-way predation exists between larvae of S. frugiperda and S. litura and provide a new strategy for the green control for S. frugiperda.

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The Role of Enemy-Mediated Competition in Determining Fitness of a Generalist Herbivore

Cited by 3 publications

References 18 publications

Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

Niche and Range Shifts of the Fall Webworm (Hyphantria cunea Dury) in Europe Imply Its Huge Invasion Potential in the Future

Two-way predation between larvae of Spodoptera frugiperda and Spodoptera litura

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