Omnivory in Terrestrial Arthropods: Mixing Plant and Prey Diets

Coll, Moshe; Guershon, Moshe

doi:10.1146/annurev.ento.47.091201.145209

Cited by 479 publications

(465 citation statements)

References 161 publications

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“…Some herbivorous species, over the evolutionary process, developed a few morpho-physiological and behavioral features that allowed them to act both as phytophagous and predator, known as omnivory (Pimm and Lawton 1978). This feeding habit is largely spread in many insect species (Coll and Guershon 2002). Hypothesis to explain the mechanisms underlying this feeding ability have been studied.…”

Section: Introductionmentioning

confidence: 99%

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Maize-Dwelling insects omnivory in Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg masses

Menezes-Netto

Varella

2012

Braz. arch. biol. technol.

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Section: Introductionmentioning

confidence: 99%

“…However, when omnivorous insects act as herbivores, they may become pests (Coll and Guershon 2002). The alternation between pest and predatory status may be a function of prey availability (Rosenheim et al 2004) or quality of the host plant (Coll 1996).…”

Section: Introductionmentioning

confidence: 99%

Maize-Dwelling insects omnivory in Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg masses

Menezes-Netto

Varella

2012

Braz. arch. biol. technol.

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“…The use of vegetable material seems to supply essential nutrients or amino acids not found in the prey (Eubanks and Denno, 1999) with positive effects on the biological aspects of these organisms (Bilde and Toft, 1994;Toft, 1995;Coll and Izraylevich, 1997;Armer et al, 1998;Coll and Guershon, 2002). Besides, omnivorous insects feeding on prey and plant can have better use of the food (Coll and Guershon, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Zoophytophagous predators feed on prey and/or on plants (Agrawal et al, 1999;Eubanks and Denno;Coll and Guershon, 2002;Azevedo et al, 2007;Guedes et al, 2007) with benefits for biological control of insect pests by improving the maintenance of the populations of these natural enemies during periods of prey shortage (Cocuzza et al, 1997). However, the morphological features of the reproductive organs and the fecundity of predatory Pentatomidae can be affected by factors such as unfavorable environmental conditions and quantity or quality of the food (Lemos et al, 2005a;2005b).…”

Section: Introductionmentioning

confidence: 99%

The Reproductive Tract of the Males of the Zoophytophagous Predator <i>Brontocoris tabidus</i> (Signoret) (Heteroptera: Pentatomidae) with Different Diets and Ages

Lemos¹,

Ribeiro²,

Ramalho³

et al. 2011

American Journal of Agricultural and Biological Sciences

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Problem statement: Brontocoris tabidus (Signoret) (Heteroptera: Pentatomidae) is a common and important species for the biological control of defoliating Lepidoptera caterpillars. Although it has a predatory feeding habit, this species make use of plant resources, which are essential for the maintenance of its population in laboratory colonies as well as in the field during periods of prey shortage. Thus B. tabidus has been considered an obligate zoophytophagous insect. However the impact of the age and herbivory on the morphology of the reproductive organs has been poorly studied in predatory Pentatomidae. The morphology of the reproductive tract of B. tabidus males with different ages and fed on different diets were analyzed. Approach: Nymphs of B. tabidus were maintained in the field with or without plants and fed on T. molitor pupae without plant (T 1 ); T. molitor pupae and Eucalyptus cloeziana plants (T 2 ); T. molitor pupae and Eucalyptus urophylla plants (T 3 ) or T. molitor pupae and guava plants (Psidium guajava L.) (T 4 ). Adults of B. tabidus obtained from each treatment were sexed in the first day of their emergence and thirty-six pairs were formed per treatment. Ten males of B. tabidus 15 and 21 days old, obtained in each treatment were dissected and the reproductive tract submitted to histological analyses. The total area of the testes of B. tabidus was measured and the data were submitted to the variance analysis and means between treatments were compared by the test of Newman-Keuls (p = 0.05). Results: The inner genitalia of B. tabidus males had red color and the testes with six follicles. Males 15 days old presented larger testes when fed on E. cloeziana (0.94 mm 2 ), E. urophylla (0.98 mm 2 ) or only T. molitor pupae (0.99 mm 2 ) than with guava plants (0.76 mm 2 ). Twenty-one days old B. tabidus males presented testes with similar size, independent of the diet. The testes follicles of B. tabidus had larger amount of spermatozoa with all diets and ages showing that the spermatogenesis process was completed. The testes of this predator showed similar histological characteristics with all diets. Conclusion: The herbivory change the morphology of the reproductive tract of B. tabidus males in field conditions resulting in testes with different sizes, but it does not affect the histology of the reproductive organ of this predator. Therefore, the food type supplied to B. tabidus males does not affect the spermatogenesis process in this natural enemy.

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“…Omnivores are widely distributed in natural landscapes and employed in biological control, and their biology suggests that their success as predators may be particularly susceptible to plant quality (Coll and Guershon 2002;Eubanks and Denno 1999;Zhi et al 2006). The predatory activity of omnivores may be impacted directly by host plant resistance through contact or feeding and indirectly via a reduction in the number and quality of herbivorous prey.…”

Section: Introductionmentioning

confidence: 99%

Jasmonate-induced plant defenses and prey availability impact the preference and performance of an omnivorous stink bug, Podisus maculiventris

Thaler

Olsen

Kaplan

2015

Arthropod-Plant Interactions

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Many omnivorous insects are important biological control agents, and their success is influenced by both plant resistance and prey availability. The potential impact of these two factors is complicated by the fact that they may not be independent: Resistant plants also often support fewer herbivorous prey. We studied how lifetime development, growth, fecundity and preference of the omnivorous stink bug, Podisus maculiventris, was affected by jasmonate-induced plant defenses and amount of prey available. P. maculiventris survival was 70 % lower on high-resistance (jasmonate-overexpressing) plants compared to low-resistance (jasmonate-insensitive) plants. However, surviving P. maculiventris grew and achieved equal fecundity on low-and high-resistance plants. When given a choice, P. maculiventris preferred low-resistance plants, but did not differentiate between caterpillar prey reared on high-or low-resistance plants. Low prey availability impacted distinct aspects of P. maculiventris performance: Development time was lengthened, and nymphal and adult mass were reduced, but survival was not impacted. We did not detect any interactive effects between plant resistance and prey availability for any measure of P. maculiventris. Thus, we found remarkably compartmentalized impacts of plant resistance and prey availability for this omnivorous insect.

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Omnivory in Terrestrial Arthropods: Mixing Plant and Prey Diets

Cited by 479 publications

References 161 publications

Maize-Dwelling insects omnivory in Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg masses

Maize-Dwelling insects omnivory in Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg masses

The Reproductive Tract of the Males of the Zoophytophagous Predator <i>Brontocoris tabidus</i> (Signoret) (Heteroptera: Pentatomidae) with Different Diets and Ages

Jasmonate-induced plant defenses and prey availability impact the preference and performance of an omnivorous stink bug, Podisus maculiventris

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