Imidacloprid Affects Pardosa Pseudoannulata Adults and Their Unexposed Offspring

Chen, Xiao-qiong; You, Xiao‐Zeng; Wu, Lingbing; Chen, Yifeng; Peng, Yu

doi:10.1007/s00128-012-0584-0

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…Elevated esterase levels have been recorded in many pyrethroid resistant insect orders, such as Diptera, Hymenoptera, Lepidoptera, and Hemiptera (Raymond et al, 1998;Li et al, 2007;Bass and Field, 2011). In contrast, Chen et al (2012) found low levels of esterases in P. pseudoannulata against imidacloprid. In this study, elevated levels of monooxygenase were recorded in bifenthrinand imidacloprid-resistant spiders.…”

Section: Discussionmentioning

confidence: 76%

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INSECTICIDE RESISTANCE IN THE GROUND SPIDER,Pardosa sumatrana(THORELL, 1890; ARANEAE: LYCOSIDAE)

Tahir

Khizar

Naseem

et al. 2016

Arch Insect Biochem Physiol

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Elevated levels of insecticides detoxifying enzymes, such as esterases, glutathione S-transferases (GSTs), and cytochrome P-450 monooxygenases, act in the resistance mechanisms in insects. In the present study, levels of these enzymes in the insecticide-resistant ground spider Pardosa sumatrana (Thorell, 1890) were compared with a susceptible population (control) of the same species. Standard protocols were used for biochemical estimation of enzymes. The results showed significantly higher levels of nonspecific esterases and monooxygenases in resistant spiders compared to controls. The activity of GSTs was lower in the resistant spiders. Elevated levels of nonspecific esterases and monooxygenases suggest their role in metabolic resistance in P. sumatrana. The reduced levels of total protein contents revealed its possible consumption to meet energy demands.

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Section: Discussionmentioning

confidence: 76%

“…In contrast, Chen et al. () found low levels of esterases in P. pseudoannulata against imidacloprid.…”

Section: Discussionmentioning

confidence: 90%

INSECTICIDE RESISTANCE IN THE GROUND SPIDER,Pardosa sumatrana(THORELL, 1890; ARANEAE: LYCOSIDAE)

Tahir

Khizar

Naseem

et al. 2016

Arch Insect Biochem Physiol

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“…All four tested neonicotinoids caused adverse effects on ballooning and rappelling when applied at concentrations that are recommended by the manufacturers for use in agriculture. This is true not only for Confidor, which is currently considered the most problematic among the four tested neonicotinoids with previously confirmed adverse effects on spiders 40,41 . We found severe sublethal effects associated also with the other three neonicotinoids.…”

Section: Discussionmentioning

confidence: 71%

Neonicotinoid insecticides limit the potential of spiders to re-colonize disturbed agroecosystems when using silk-mediated dispersal

Řezáč¹,

Řezáčová²,

Heneberg³

2019

Sci Rep

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Agroecosystems are subject to regular disturbances that cause extinction or migration of much of their fauna, followed by recolonization from surrounding refuges. In small-sized aeronaut spiders, such recolonization is potentiated by their ability to rappel and balloon. These are complex behaviors that we hypothesized to be affected by neurotoxins, namely, neonicotinoids. We tested this hypothesis using two common farmland spider species, Oedothorax apicatus (Linyphiidae) and Phylloneta impressa (Theridiidae). The spiders were topically exposed by dorsal wet application or tarsal dry exposure to commercial neonicotinoid formulations Actara 25 WG, Biscaya 240 OD, Mospilan 20 SP and Confidor 200 OD at concentrations that are recommended for application in agriculture. Contact exposure to neonicotinoids suppressed the ability of spiders to produce the major ampullate fiber and anchor it to the substratum by piriform fibrils. Contact exposure to neonicotinoids also suppressed the ballooning behavior that was manifested by climbing to elevated places, adopting a tiptoe position and producing silk gossamer in the wind. Impaired ability of affected common farmland spiders to quickly recolonize disturbed agroecosystems by silk-mediated dispersal may explain their decline in multiple farmland ecosystems, in which neonicotinoids are applied.

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“…The development of P. astrigera was also slower than reported for this species previously (49 days, [1] ), and the increase in developmental time is similar to that caused by chemical exposure in this and other Pardosa spp. [1] , [25] . However, although the overall development of P. astrigera was slowed, it was only the duration of the later instars that differed significantly with prey type ( Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

Comparative Growth and Development of Spiders Reared on Live and Dead Prey

Zhang

Gui

et al. 2013

PLoS ONE

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Scavenging (feeding on dead prey) has been demonstrated across a number of spider families, yet the implications of feeding on dead prey for the growth and development of individuals and population is unknown. In this study we compare the growth, development, and predatory activity of two species of spiders that were fed on live and dead prey. Pardosa astrigera (Lycosidae) and Hylyphantes graminicola (Lyniphiidae) were fed live or dead fruit flies, Drosophila melanogaster. The survival of P. astrigera and H. graminicola was not affected by prey type. The duration of late instars of P. astrigera fed dead prey were longer and mature spiders had less protein content than those fed live prey, whereas there were no differences in the rate of H. graminicola development, but the mass of mature spiders fed dead prey was greater than those fed live prey. Predation rates by P. astrigera did not differ between the two prey types, but H. graminicola had a higher rate of predation on dead than alive prey, presumably because the dead flies were easier to catch and handle. Overall, the growth, development and reproduction of H. graminicola reared with dead flies was better than those reared on live flies, yet for the larger P. astrigera, dead prey may suit smaller instars but mature spiders may be best maintained with live prey. We have clearly demonstrated that dead prey may be suitable for rearing spiders, although the success of the spiders fed such prey appears size- and species specific.

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Imidacloprid Affects Pardosa Pseudoannulata Adults and Their Unexposed Offspring

Cited by 10 publications

References 34 publications

INSECTICIDE RESISTANCE IN THE GROUND SPIDER,Pardosa sumatrana(THORELL, 1890; ARANEAE: LYCOSIDAE)

INSECTICIDE RESISTANCE IN THE GROUND SPIDER,Pardosa sumatrana(THORELL, 1890; ARANEAE: LYCOSIDAE)

Neonicotinoid insecticides limit the potential of spiders to re-colonize disturbed agroecosystems when using silk-mediated dispersal

Comparative Growth and Development of Spiders Reared on Live and Dead Prey

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