Female preference and fitness benefits of mate choice in a species with dissociated sperm transfer

Zizzari, Z. Valentina; Braakhuis, Annika; Straalen, Nico M. van; Ellers, Jacintha

doi:10.1016/j.anbehav.2009.08.014

Cited by 21 publications

(42 citation statements)

References 40 publications

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“…Although this design confounds clutch rank order with temperature (the last clutch was always laid at the higher temperature), we were confined to this design because continuous 22°C is rather high for O. cincta, and reversing the temperature order might have lead to premature death of pairs. However, a previous study showed that egg size of O. cincta females does not change between two consecutive clutches at 20C (Zizzari et al 2009). Our total dataset contained data from 97 pairs for egg development rate (516 individuals), from 92 pairs for juvenile growth rate (416 individuals) and from 69 pairs for egg size (1,329 eggs).…”

Section: Experimental Design and Trait Measurementsmentioning

confidence: 92%

Genetic correlation between temperature-induced plasticity of life-history traits in a soil arthropod

Ellers¹,

Driessen²

2010

Evol Ecol

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Temperature is considered one of the most important mediators of phenotypic plasticity in ectotherms. However, the costs and benefits shaping the evolution of different thermal responses are poorly elucidated. One of the possible constraints to phenotypic plasticity is its intrinsic genetic cost, such as genetic linkage or pleiotropy. Genetic coupling of the thermal response curves for different life history traits may significantly affect the evolution of thermal sensitivity in thermally fluctuating environments. We used the collembolan Orchesella cincta to study if there is genetic variation in temperature-induced phenotypic plasticity in life history traits, and if the degree of temperature-induced plasticity is correlated across traits. Egg development rate, juvenile growth rate and egg size of 19 inbred isofemale lines were measured at two temperatures. Our results show that temperature was a highly significant factor for all three traits. Egg development rate and juvenile growth rate increased with increasing temperature, while egg size decreased. Line by temperature interaction was significant for all traits tested; indicating that genetic variation for temperature-induced plasticity existed. The degree of plasticity was significantly positively correlated between egg development rate and growth rate, but plasticity in egg size was not correlated to the other two plasticity traits. The findings suggest that the thermal plasticities of egg development rate and growth rate are partly under the control of the same genes or genetic regions. Hence, evolution of the thermal plasticity of traits cannot be understood in isolation of the response of other traits. If traits have similar and additive effects on fitness, genetic coupling between these traits may well facilitate the evolution of optimal phenotypes. However, for this we need to know the selective forces under field conditions.

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Section: Experimental Design and Trait Measurementsmentioning

confidence: 92%

Genetic correlation between temperature-induced plasticity of life-history traits in a soil arthropod

Ellers¹,

Driessen²

2010

Evol Ecol

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“…Female O. cincta gain indirect benefits from choosing among male spermatophores [16], indicating that the spermatophores exhibit detectable signals that are correlated with the expected benefits. Based on observations during mate choice trials, olfactory cues are almost certainly associated with the spermatophores [12,16,20].…”

Section: Discussionmentioning

confidence: 99%

“…One patch consisted of two spermatophores from a male of the control treatment and the other patch consisted of two spermatophores of a male from the male plus spermatophores treatment. Virgin females were used in the choice trials when they were receptive according to [16]. We tested each female only once.…”

Section: Methodsmentioning

confidence: 99%

“…Males deposit spermatophores only during the reproductive instars. The female's receptive phase is limited to 48 h after the onset of the reproductive instar [12,13,16].…”

Section: Methodsmentioning

confidence: 99%

“…Earlier work on O. cincta has demonstrated that female choice based exclusively on assessment of spermatophores provides the females with indirect benefits [16]. Thus, mate choice in this species is mediated solely by precopulatory cues associated with the male spermatophores [12,15,16], making it an excellent system to investigate the effect of male-male competition on the outcome of sexual selection.…”

Section: Introductionmentioning

confidence: 99%

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Male–male competition leads to less abundant but more attractive sperm

2013

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Males employ complex strategies to optimize their reproductive success when faced with male-male competition; for instance, they can adjust the ejaculate characteristics. In copulating species, a male may also strategically adjust his ejaculate expenditure according to female quality. Quantifying the relative contribution of ejaculate plasticity in male reproductive success is often difficult, especially when females exert postcopulatory cryptic choice. One way to quantify the functional significance of ejaculate plasticity is offered by mating systems in which the reproductive partners do not meet each other during insemination. In the collembolan Orchesella cincta, males deposit their ejaculates (spermatophores) irrespective of the presence of females. We tested whether Orchesella males adjust spermatophore number when exposed to the presence of another male and whether changes in spermatophore production influence female choice. We found that Orchesella males display plasticity in spermatophore allocation. Males decreased the spermatophore number when exposed to a rival male. Moreover, females preferentially took up spermatophores of males that were exposed to a competitor. The reduction in spermatophore number suggests, besides an adaptive response to the risk of ejaculate removal by rival males, an optimization strategy owing to the costs of more attractive spermatophores.

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Chemical communication in springtails: a review of facts and perspectives

Salmon

Rebuffat²,

Prado³

et al. 2019

Biol Fertil Soils

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Female preference and fitness benefits of mate choice in a species with dissociated sperm transfer

Cited by 21 publications

References 40 publications

Genetic correlation between temperature-induced plasticity of life-history traits in a soil arthropod

Genetic correlation between temperature-induced plasticity of life-history traits in a soil arthropod

Male–male competition leads to less abundant but more attractive sperm

Chemical communication in springtails: a review of facts and perspectives

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