Does a trade‐off between current reproductive success and survival affect the honesty of male signalling in species with male parental care?

Kelly, N. B.; Alonzo, Suzanne H.

doi:10.1111/j.1420-9101.2010.02111.x

Cited by 10 publications

(13 citation statements)

References 30 publications

(80 reference statements)

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“…Various intersexual and intrasexual interactions during the reproductive lifespan of an individual determine its lifetime reproductive success (Stoehr and Kokko, 2006; Kalbe et al, 2009; Kelly and Alonzo, 2010). We have presented a model framework where several individual life-history interactions can be studied simultaneously.…”

Section: Discussionmentioning

confidence: 99%

“…The lifetime reproductive success is a multiplicative effect of the fitness arising from immune response, ornamentation and parental investment (Stoehr and Kokko, 2006; Kelly and Alonzo, 2010) as shown in the ESM. Using the LRS values in the Mendelian population dynamics, we can obtain the combined interaction dynamics of each type of individuals in the population (details and calculations in the ESM).…”

Section: Modelmentioning

confidence: 99%

“…The lifetime reproductive success of each type within a sex is a multiplicative combination of mating gains, fertility and survival probability (Stoehr and Kokko, 2006; Kelly and Alonzo, 2010). These are given by, …”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

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Consequences of combining sex-specific life-history traits

Venkateswaran

Roth

Gokhale

2020

Preprint

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Males and females evolved distinct life-history strategies, reflected in diverse life-12 history traits, summarized as sexual dimorphism. Life-history traits are highly interlinked. 13 The sex that allocates more resources towards offspring is expected to increase its life 14 span, and this might require an efficient immune system. However, the other sex might 15 allocate its resources towards ornamentation, and this might have immunosuppressive 16 effects. Activity of immune response may not be specific to the sex that produces the 17 eggs but could correlate with the amount of parental investment given. Informed by 18 experimental data, we designed a theoretical framework that combines multiple life-19 history traits. We disentangled sex-biased life-history strategies from a particular sex to 20 include species with reversed sex-roles, and male parental investment. We computed the 21 lifetime reproductive success from the fitness components arising from diverse sex-biased 22 life-history traits, and observed a strong bias in adult sex ratio depending on sex-specific 23 resource allocation towards life-history traits. Overall, our work provides a generalized 24 method to combine various life-history traits with sex-specific differences to calculate the 25 lifetime reproductive success. This was used to explain certain empirical observations as 26 a consequence of sexual dimorphism in life-history traits. 27 28 lifetime reproductive success, adult sex ratio 29 life-history traits. Theoretical models assessing the interaction of multiple life-history traits are 33 thus crucial to understand organisms' overall life-history and how they impact fitness. Theoretical 34 and experimental studies have shown how multiple life-history traits define an individual's lifetime 35 reproductive success (MooreIn this study, we present a model that addresses the interaction of essential sex-specific life-history 39 traits aiming to obtain the lifetime reproductive success of both sexes. This sheds light on how these 40 traits are contributing to an individual's life-history. We further present the consequences of various 41 sex-specific strategies affecting an evolving population. 42Most life-history traits have sex-specific differences. Sex-specific life histories have evolved in 43 the animal kingdom as a consequence of difference in gamete size known as anisogamy (Bell, 44 1978); females contribute large costly eggs to reproduction and males small cheap sperm. The 45 distinct resource allocation into the offspring asks for sex-specific life-history strategies (Trivers, 46 we focus on the sex-specific differences in three life history traits namely 1. Parental investment 2. 48Ornamentation and 3. Immunocompetence 49In many species, parental investment is not restricted to sperm and egg production. Parental 50 investment (PI) is any behavioural and physiological investment by a parent provided to the off-51 spring (Trivers, 1972(Trivers, , 2002. The sex that needs to allocate more resources towards the offspring 52 strives...

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Section: Discussionmentioning

confidence: 99%

Section: Modelmentioning

confidence: 99%

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Consequences of combining sex-specific life-history traits

Venkateswaran

Roth

Gokhale

2020

Preprint

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“…early death, decreased egg production and egg‐hatching rate) is found at the extreme mating level. In species with male parental care, the resource allocation of males is divided into three parts: current mating investment, paternal care and survival for future reproductive effort (Kelly & Alonzo, ). In the present study, the decreased longevities of both sexes at high mating frequency can be explained by a trade‐off between current reproductive effort versus future reproductive effort.…”

Section: Discussionmentioning

confidence: 99%

Effects of multiple mating on the fecundity of an invasive pest (Octodonta nipae): the existence of an intermediate optimal female mating rate

Zhang

Hou

2014

Physiol. Entomol.

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Multiple mating is found in many insect taxa where both of the sexes can mate more than once. For males, this leads to the advantage of increasing their paternity by fertilizing more females. However, there is a trade-off of resource allocation between reproduction and other life-history characters. In the present study, the impact of increased mating rate on reproductive fitness of the invasive nipa palm hispid beetle Octodonta nipae Maulik (Coleoptera: Chrysomelidae) is investigated. A series of mating frequencies (i.e. 1, 5, 10, 15, 20 times) is selected from video frame playback, ranking from the minimum to maximum mating rate observed under laboratory conditions over a given time period. Fecundity parameters such as lifetime egg production, egg-hatching rate, effective oviposition period and longevity are investigated for the evaluation of reproductive efficiency. For female O. nipae, increased fecundity is correlated with the mating frequency. Females mating 15 times lay the largest number of eggs (138.82 ± 6.87) and have a hatching rate of 47.43 ± 4.08%. After mating 20 times, females suffer significant declines in oviposition (90.31 ± 8.38 eggs) and egg-hatching rate (34.16 ± 4.93%). Moreover, the population growth rate reaches a maximum in the females that mate 15 times. The results show that multiple matings in O. nipae have an intermediate optimal range within which female reproductive success is enhanced, providing empirical evidence for the existence of a trade-off between costs and benefits during copulation based on resource allocation.

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“…In addition to the social environment, which includes parental interactions as well as interactions with competitors or future mates, also the non-social environment in which the interactions take place may have an important influence on the outcome of parental interactions. For instance, if food is sparsely available, both parents may be required to raise the offspring successfully, limiting the opportunity to desert and remate Kelly & Alonzo 2010;McGraw et al 2010). However, empirical investigations of the predictions as to whether parents should negotiate care or whether they should play a sealed bid and how this depends on the environment are rare.…”

Section: Introductionmentioning

confidence: 99%

Nest Attendance does not Predict Offspring Desertion by Eurasian Penduline Tit Parents

2012

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Parental care is costly, and in many organisms, the male or the female parent benefits from reducing its own care which may be compensated for by its mate. One of the parents may even face all costs of parental care if its mate deserts and leaves him/her to care for the offspring alone. Theoretical models have generated contrasting predictions as to how parents negotiate a resolution of this sexual conflict over care, although empirical tests are largely lacking. We investigated pre‐desertion behaviour (nest attendance) of a highly polygamous passerine, the Eurasian penduline tit ( Remiz pendulinus) that exhibits intense sexual conflict over care culminating in clutch desertion by the male, by the female or by both parents. We conjectured that nest attendance of parents should predict desertion, so that the lack of care provided by the deserting parent may be compensated for. By analysing over 200 000 video frames (2.50 ± 1.36 d per pair, 302 ± 170 min/d) of 20 pairs, we show that nest desertion is not a gradual process and cannot be predicted by nest attendance. These results are consistent with the argument that the predictable desertion may not be evolutionarily stable, and suggest that male and female penduline tits do not negotiate clutch desertion.

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Does a trade‐off between current reproductive success and survival affect the honesty of male signalling in species with male parental care?

Cited by 10 publications

References 30 publications

Consequences of combining sex-specific life-history traits

Consequences of combining sex-specific life-history traits

Effects of multiple mating on the fecundity of an invasive pest (Octodonta nipae): the existence of an intermediate optimal female mating rate

Nest Attendance does not Predict Offspring Desertion by Eurasian Penduline Tit Parents

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