Investigations on the cannibalistic behavior of ladybird beetle Coccinella septempunctata  L. (Coleoptera: Coccinellidae) under laboratory conditions

Khan, Muhammad Hamayoon; Yoldaş, Zeynep

doi:10.3906/zoo-1708-37

Cited by 8 publications

(5 citation statements)

References 27 publications

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“…[27] reported that in the case of Harmonia axyridis, production of eggs is considered an impact factor for the target of cannibalism and give the missing feeder in their food and therefore eggs were more important than instar stages for cannibalism, which when eat is scarcity [28,29] . However, many researcher [30,9] , these proved that most insects are reluctant of self-predation. All stages of observed different stages of eggs cannibalism as well as the fourth larval instars of coccinellid seemed the increased consumed compering other instars, whether feeding eggs cannibalism [31,32] .…”

Section: Discussionmentioning

confidence: 99%

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Effect of cannibalism phenomenon on some biological aspects and predation efficiency on Tetranychus urticae Koch of the ladybird beetle, Coccinella undecimpunctata Linnaeus

AA¹,

HA²,

Refaei³

et al. 2022

J. Entomol. Zool. Stud.

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The coccinellid predator, Coccinella undecimpunctata (L.) is one of the most important insect predator, which plays an important role in regulation of too many insect pests in Egypt and worldwide. Cannibalism phenomenon is a well-known behavioral feature in this predator, as the larvae and adults prey upon each other. The consumption capacity of this predator on Tetranychus urticae Koch, as well the eggs, first and second larval instars of the this coccinellid was evaluated. The adults and 4 th larval instar and adults of C. undecimpunctata devoured more prey compared to those devoured by 1 st , 2 and 3 rd larval instars. The fourth larval instar of the coccinellid fed upon an average of 96.7 ± 1.2 eggs and 12.0 ± 0.7 larvae of first larvae instar of the same species in Petri dish, in the absence of the spider mite (nonchoice feeding). In the presence of the mite and eggs of C. undecimpunctata, the fourth larval instar fed upon 2.2 ± 0.8 eggs and consumed only 1.0 ± 0.5 larvae in 1 st larval instar of C. undecimpunctata (choice feeding), and consumed and consumed 126.0 ± 1.0 individual of spider mite in the absence of other prey (non-choice feeding). The adult of the coccinellid fed upon 10.52 ± 0.9 eggs and 5.09 ± 0.5 1 st larval instars, in the absence of the mite, but fed upon 1.08 ± 0.15 eggs in the presence of the spider mite and C. undecimpunctata eggs in the same dich. Also, the coccinellid adult fed upon 0.19 ± 0.21 first larval instars in the presence of C. undecimpunctata larval and mites found in the same Petri dish. The adults of C. undecimpunctata consumed 45.83 ± 1.17 individual of the spider mite in the absence of eggs and larvae of C. undecimpunctata. Data of cannibalism and predatory efficiency show that eggs and 1 st larval instars of C. undecimpunctata are more devoured by C. undecimpunctata adults comparing to 4 th larval inster and larvae of the coccinellid. The two-spotted spider mite is the preferred to all stage of the coccinellid. Results show that scarcity of the prey is one the main reason to cannibalism phenomenon, but it is a conspecific behavior of all coccinellids to keep all species.

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Section: Discussionmentioning

confidence: 99%

“…In case of absence or presence of prey, C. septempunctata behaved as a conspecific predator. Many studies showed that scarcity of prey was the absolute reason of cannibalism in C. septempunctata [9] . The scarcity of prey may not be the important reason for cannibalism in C. septempunctata [6] .…”

Section: Introductionmentioning

confidence: 99%

Effect of cannibalism phenomenon on some biological aspects and predation efficiency on Tetranychus urticae Koch of the ladybird beetle, Coccinella undecimpunctata Linnaeus

AA¹,

HA²,

Refaei³

et al. 2022

J. Entomol. Zool. Stud.

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“…The primary factor influencing cannibalism and its level of satiation is food deprivation (Dixon 2000) [6] . If the natural food is readily available, the incidences of cannibalism decline suggesting that cannibalism among larvae is inversely correlated with food supply (Khan and Yoldas 2018) [16] . Starved fourth instar larvae disregarded the toxicity of non-conspecific eggs due to their size and voracity.…”

Section: Discussionmentioning

confidence: 99%

Impact of egg-quality and its laying pattern on the fate of egg-cannibalism and intraguild predation in ladybirds

Monalisa¹,

Pervez²

2022

J. Entomol. Zool. Stud.

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We investigated the impact of egg-quality and its laying pattern on the incidence of cannibalism and intraguild predation in ladybirds. We manipulated quality by using two species of ladybirds' eggs and the pattern of egg-laying by arranging the eggs singly or in cluster and using second, third and fourth instar larva of two ladybird species, Coccinella septempunctata L. and Menochilus sexmaculatus (Fabricius), as predators. We found that second instars of both ladybird species indulged in egg-cannibalism, whereas third and fourth instars were potential intraguild predators and consumed heterospecific eggs. On the other hand, linearly arranged and clustered eggs of M. sexmaculatus were least protected by higher instars of C. septempunctata, while clustered eggs of C. septempunctata got a refuge from M. sexmaculatus higher stage larvae due to aposematism in eggs. It is concluded that C. septempunctata was an intraguild predator of eggs of M. sexmaculatus in starved conditions, and the egg-quality and pattern of egg-laying can affect the fate of egg-cannibalism and intraguild predation.

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“…(1999) in a study on H. axyridis have reported that third instars avoided cannibalism of related victims and took longer and showed higher encounter rates to cannibalise related victims than unrelated victims. The highest percentage of eggs cannibalised by fourth instars may be attributed to increased evolutionary survival pressure and higher energetic needs required for pupation (Khan et al ., 2003; Jafari, 2012; Khan and Yoldas, 2018a, b). The results suggest that possibly the nutritional requirements of larval instars vary based on the developmental stage which in turn regulates predatory prey consumption.…”

Section: Discussionmentioning

confidence: 99%

Effect of victim relatedness on cannibalistic behaviour of ladybird beetle,Menochilus sexmaculatusFabricius (Coleoptera: Coccinellidae)

Yadav

Omkar

Mishra

2022

Preprint

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Cannibalism is taxonomically widespread and has a large impact on the individuals fitness and population dynamics. Thus, identifying how the rates of cannibalism are affected by different ecological cues is crucial for predicting species evolution and population dynamics. In current experiment, we investigated how victim relatedness affects the cannibalistic tendencies of different life stages of ladybird, Menochilus sexmaculatus, which is highly cannibalistic. We provided larval instars and newly emerged adults of M. sexmaculatus with a choice of sibling, half-sibling and non-sibling conspecific eggs as victim of cannibalism. First victim cannibalised and latency to cannibalise were observed along with total number of victims cannibalised after 24 hours. First preference of victim did not differ with life stages of the cannibals though the number of victims cannibalized did increase with advancement in stage. Percentage of total eggs cannibalised also varied significantly with life stage and victim relatedness. First and second instars tend to cannibalise more percentage of siblings and non-sibling eggs while third instars cannibalised more percentage of non-sibling eggs; fourth instars and adults on the other hand cannibalised highest percentage of eggs irrespective of their relatedness. Insignificant effect of victim relatedness was observed on latency to cannibalise eggs, though it varied significantly with the cannibals life stage. Shortest latency to cannibalise was recorded for first instars and longest for adults and second instars. In conclusion, kin recognition and its avoidance is stage-specific, with fourth instar and newly emerged adults being less discriminatory as compared to early stages owing to increased evolutionary survival pressure.

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Investigations on the cannibalistic behavior of ladybird beetle Coccinella septempunctata L. (Coleoptera: Coccinellidae) under laboratory conditions

Cited by 8 publications

References 27 publications

Effect of cannibalism phenomenon on some biological aspects and predation efficiency on Tetranychus urticae Koch of the ladybird beetle, Coccinella undecimpunctata Linnaeus

Effect of cannibalism phenomenon on some biological aspects and predation efficiency on Tetranychus urticae Koch of the ladybird beetle, Coccinella undecimpunctata Linnaeus

Impact of egg-quality and its laying pattern on the fate of egg-cannibalism and intraguild predation in ladybirds

Effect of victim relatedness on cannibalistic behaviour of ladybird beetle,Menochilus sexmaculatusFabricius (Coleoptera: Coccinellidae)

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