Estimation of population growth for two species of lady beetles (Coleoptera: Coccinellidae) under different temperatures

Oliveira, C. M. de; Torres, Christian Sherley Araújo da Silva; Torres, Jorge B.; Silva, Géssica dos Santos

doi:10.1080/09583157.2021.1969337

Cited by 3 publications

(4 citation statements)

References 45 publications

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“…Hence, P. quatuordecimpunctata exhibited markedly lower thermal tolerance, which is in accordance with its geographical distribution patterns in northwestern China. These findings are in line with earlier work in which cold hardiness [ 42 ] and thermal tolerance are identified as key determinants of ladybug distribution [ 29 , 43 ]. Evidently, these functional traits determine the extent to which either ladybug species will perform under specific agro-climatic conditions [ 44 ], particularly in the harsh environments of northwestern China.…”

Section: Discussionsupporting

confidence: 92%

“…In ladybugs, such as Harmonia axyridis (Pallas) or Propylaea japonica (Thunberg), T-AOC and GST activity decreases with surging temperatures, while SOD activity exhibits more variable effects depending upon the experimental temperature regime [ 24 , 25 ]. Lastly, through the above physiological and behavioral changes, temperature mediates the seasonal abundance, dispersal patterns, and geographical distribution of herbivorous insects [ 26 ] and ladybug predators alike [ 27 , 28 , 29 ]. This can lead to a mismatch between predator and prey population phenology and potentially can trigger pest outbreaks.…”

Section: Introductionmentioning

confidence: 99%

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Impact of Heat Stress on the Predatory Ladybugs Hippodamia variegata and Propylaea quatuordecimpunctata

Yang

Liu

Wyckhuys

et al. 2022

Insects

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In cotton-growing regions of northwestern China, Hippodamia variegata (Goeze) and Propylaea quatuordecimpunctata (Linnaeus) (Coleoptera: Coccinellidae) are key natural enemies of hemipteran pests. As only H. variegata can be encountered in hot, arid production areas, the thermal responses and climatic adaptability of both species likely differ substantially. In this study, we assessed the survival, longevity, fecundity, prey consumption rate, and antioxidant capacity of both species under laboratory conditions at 32–38 °C. The (negative) impacts of elevated temperatures (i.e., 35 and 38 °C) on adult survival and reproduction were more pronounced for P. quatuordecimpunctata than for H. variegata. Similarly, high temperatures exhibited the strongest negative impacts on the prey consumption rates of P. quatuordecimpunctata. At elevated temperatures, superoxide dismutase and catalase activity increased, while glutathione-S-transferases activity decreased for both species. However, for P. quatuordecimpunctata, peroxidase activity and total antioxidant capacity progressively declined. Antioxidant responses thus constitute a key physiological adaptation of ladybugs to heat stress, reflecting a superior thermal tolerance of H. variegata. Our work emphasizes how laboratory assays can explain spatiotemporal distribution patterns of individual ladybugs and inform strategies to bolster their ensuing biological control under conditions of global warming or extreme weather events.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Impact of Heat Stress on the Predatory Ladybugs Hippodamia variegata and Propylaea quatuordecimpunctata

Yang

Liu

Wyckhuys

et al. 2022

Insects

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“…Oliveira et al . (2021) estimated that in warmer areas, the introduced species have a higher number of descendants per year than the native species. Prior to this work, our research group has investigated the thermal requirements and predation potential of T. notata (Ferreira et al .…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, C. montrouzieri could have superior fitness than T. notata and have higher population growth overall, limiting the native species access to food and space. Oliveira et al (2021) estimated that in warmer areas, the introduced species have a higher number of descendants per year than the native species. Prior to this work, our research group has investigated the thermal requirements and predation potential of T. notata (Ferreira et al 2020) and used the CLIMEX model to estimate the global geographic distribution of T. notata and C. montrouzieri (Ferreira et al 2021) based on climatic conditions and thermal requirements of both predators.…”

Section: Discussionmentioning

confidence: 99%

Cannibalism and intraguild predation between endemic and introduced coccidophagous lady beetles (Coleoptera: Coccinellidae)

et al. 2022

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The Chilocorini lady beetles Tenuisvalvae notata (Mulsant) and Cryptolaemus montrouzieri Mulsant are important biological control agents being able to share their habitat and compete for their preferred prey, mealybugs. Whereas T. notata is native to South America, C. montrouzieri is an Australian species introduced in Brazil in a biological control program of mealybugs. This work investigated the cannibalism and intraguild predation between these species in the absence of prey. To test for intraguild predation, one individual larva (instars 1-4) from each species was confined for 24 h with another larva of the same instar or the next instar, in a total of 10 combinations. In addition, we measured predation of T. notata adults upon eggs, larvae, pre-pupae and pupa of C. montrouzieri, and vice versa. Cannibalism within the species was also tested across adults, larvae and eggs. Results showed asymmetric interactions in favour of C. montrouzieri, which acted as intraguild predator more than 80% of the time when paired with larvae of T. notata either of the same or different instar. In addition, C. montrouzieri adults preyed more upon larvae and eggs of T. notata than the contrary. There was no intraguild predation upon pre-pupae and pupae. Cannibalism was high upon eggs and first instar larvae of T. notata (89.5% and 65%) and C. montrouzieri (100% and 55%), respectively. Therefore, the exotic C. montrouzieri outcompeted the native T. notata and could become a threat to this endemic species in areas of simultaneous occurrence and under prey scarcity. Thus, the interactions between these lady beetles could affect the success of biological control of mealybugs.

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Transcriptome Analysis of Propylaea quatuordecimpunctata L. (Coleoptera: Coccinellidae) under High Temperature Stress

et al. 2022

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In cotton-growing regions of northern Xinjiang, Propylaea quatuordecimpunctata (L.) (Coleoptera: Coccinellidae) is an important natural enemy that provides significant control of some pest hemipterans. Previous studies have shown that the survival and reproduction of P. quatuordecimpunctata differs under different high temperatures. However, its molecular mechanism for thermotolerance is poorly understood. In this study, transcriptome sequencing analysis was performed on P. quatuordecimpunctata, after its exposure to different temperatures (32–38 °C) for 24 h, using high-throughput sequencing technology. The results showed that the 35 vs. 38 °C groups had the most DEGs (1425), indicating that P. quatuordecimpunctata has more genes that can be mobilized under high temperature (38 °C). The results of functional analysis showed that the DEGs were mainly involved in “Oxidation–reduction process”, “Oxidoreductase activity”, “Metabolic pathways”, and “Small molecule metabolic processing” groups. We randomly selected DEGs (eleven P450 genes and one Hsp70 gene) of interest for qRT-PCR validation. The qRT-PCR results were consistent with the transcriptome data, indicating that the transcriptome data were reliable. In summary, these genes involved in these pathways play an important role in the resistance of P. quatuordecimpunctata to high temperature stress. Our study enriched our understanding of the molecular mechanism for thermotolerance in P. quatuordecimpunctata.

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Estimation of population growth for two species of lady beetles (Coleoptera: Coccinellidae) under different temperatures

Cited by 3 publications

References 45 publications

Impact of Heat Stress on the Predatory Ladybugs Hippodamia variegata and Propylaea quatuordecimpunctata

Impact of Heat Stress on the Predatory Ladybugs Hippodamia variegata and Propylaea quatuordecimpunctata

Cannibalism and intraguild predation between endemic and introduced coccidophagous lady beetles (Coleoptera: Coccinellidae)

Transcriptome Analysis of Propylaea quatuordecimpunctata L. (Coleoptera: Coccinellidae) under High Temperature Stress

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