Reproductive Status Modulates Mortality Rate, Lifespan and Egg Production, but Do Not the Physiological Aging in the Field Cricket Gryllus assimilis (Fabricius, 1775) (Orthoptera: Gryllidae)

Limberger, Guilherme Martins; Nery, Luíz Eduardo; Fonseca, Duane Barros da

doi:10.1007/s13744-020-00839-x

Cited by 13 publications

(17 citation statements)

References 53 publications

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“…Dissections of a small number of corpses, in which the ovaries had not yet decayed, revealed the absence of sperm in the spermatheca, suggesting that also other unproductive individuals had been virgins. Their higher mortality matches the finding that in social insects mating and reproduction increase life expectancy (e.g., Hartmann & Heinze, 2003 ; Schrempf, Heinze, et al, 2005 ; Schrempf, Reber, et al, 2005 ), in contrast to many solitary insects, in which virgins outlive reproductively active, mated females (e.g., Chapman et al, 1998 ; Limberger et al, 2021 ; Service, 1989 ). A positive association between fecundity and longevity appears to be a trait associated with the evolution of perennial insect societies (e.g., Jaimes‐Niño et al, 2022 ; Parker, 2010 ; Rodrigues & Flatt, 2016 ).…”

Section: Discussionsupporting

confidence: 71%

Assisted dispersal and reproductive success in an ant species with matchmaking

Vidal

Heınze

2022

Ecology and Evolution

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Workers of the ant Cardiocondyla elegans drop female sexuals into the nest entrance of other colonies to promote outbreeding with unrelated, wingless males. Corroborating the results from previous years, we document that carrier and carried female sexuals are typically related and that the transfer initially occurs mostly from their joint natal colonies to unrelated colonies. Female sexuals mate multiply with up to seven genetically distinguishable males. Contrary to our expectation, the colony growth rate of multiple‐mated and outbred female sexuals was lower than that of inbred or single‐mated females, leading to the question of why female sexuals mate multiply at all. Despite the obvious costs, multiple mating might be a way for female sexuals to “pay rent” for hibernation in an alien nest. We argue that in addition to evade inbreeding depression from regular sibling mating over many generations, assisted dispersal might also be a strategy for minimizing the risk of losing all reproductive investment when nests are flooded in winter.

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Section: Discussionsupporting

confidence: 71%

Assisted dispersal and reproductive success in an ant species with matchmaking

Vidal

Heınze

2022

Ecology and Evolution

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“…In both experiments, females were sampled from a long-term cricket colony housed in the Laboratory of Terrestrial Invertebrates at the Institute of Biological Sciences in Universidade Federal do Rio Grande (FURG), Brazil. Crickets were maintained under standard controlled conditions of room temperature (27 ± 1°C), 12 h light:12 h dark cycle, and humidity of 70% ± 10% (Limberger et al 2021). Experimental females were 15 ± 3 days old (adult) when they were randomly allocated to establish a mated or virgin group (with no differences in size or mass).…”

Section: Bioassaymentioning

confidence: 99%

“…All experimental procedures were done under standard controlled conditions in the rearing room, with food and water provided ad libitum. Wet cotton balls were used for water consumption and as standard oviposition substrate (Limberger et al 2021;2022).…”

Section: Bioassaymentioning

confidence: 99%

“…Insect females, particularly crickets, are a very useful model to understand the dynamics of reproductive trade-offs and have been contributing to this purpose for decades (Zera et al 1998;Shoemaker & Adamo 2007;Park & Stanley 2015;Miyashita et al 2020;Limberger et al 2021;2022;Treidel et al 2021). Resource allocation and acquisition are processes that underlie trade-off dynamics that are closely related to environmental profile but not restricted to that.…”

mentioning

confidence: 99%

“…We have previously demonstrated that females of Jamaican field crickets, Gryllus (Gryllus) assimilis (Fabricius, 1775), showed a modest cost of reproduction perceived in survival of mated females (about a week in the maximal lifespan), although the oviposition rate of these mated females was approximately four times higher than that observed in virgins of the same age when experimentally kept under ad libitum diet (Limberger et al 2021). Mating has an immediate effect on the reproductive system of field cricket females, increasing the oviposition rate as a result of male-derived substances, as prostaglandin, that are transferred during copulation (Worthington & Kelly 2016).…”

mentioning

confidence: 99%

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Mating status affects females feeding behavior but does not the encapsulation response in the field cricket, Gryllus (Gryllus) assimilis (Fabricius, 1775)

2022

Self Cite

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Mating can trigger different effects on the physiology and behavior of animals, especially in females. These effects can be either beneficial, such as boosting the immune response, or harmful, such as decreasing survival, for example. Cricket females are among the most used models for understanding these life history trade-offs. We recently demonstrated that mated females have a slight cost of reproduction in survival that could be explained if they differed in resource consumption compared to unmated, being able to avoid putative damages of reproduction on self-maintenance. To test whether mating status modulates feeding behavior and self-maintenance (i.e., immunity), we performed two experimental blocks: In the first, we measure the food intake of both virgin and mated females of Gryllus (Gryllus) assimilis (Fabricius, 1775). In the second, we compared the ability to mount an acute immune response (encapsulation) against a nylon filament implant, a widely used method to challenge the insect immune system. Results showed that mated females did not increase food consumption compared to pre-mating period, however, the virgin group (control) drastically decreased the amount of food ingested. Furthermore, no difference in immune response was found between mating status. As mated females ingested more food than those virgins of the same age, we suggest the feeding behavior (i.e., resource acquisition) as one of the used behavioral strategies to maintain immune ability, high oviposition rates, and survival of mated females of G. (G.) assimilis when fed ad libitum.

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