4.5 Article

Individual- and group-level sex ratios under local mate competition: consequences of infanticide and reproductive dominance

Related references

Note: Only part of the references are listed.
Article Entomology

Agonistic responses to potential co-foundresses in a cooperatively brooding quasi-social parasitoid

Xiaomeng Guo et al.

Summary: Sociality is rare among parasitoid hymenopterans, but studies on the ectoparasitoid Sclerodermus suggest cooperative brooding behavior. However, conflicts of interest among co-foundresses exist during host suppression and brood production. Overtly agonistic interactions were lacking, but resident Sclerodermus guani females were observed to either accept or repel intruder females, with aggression more likely when certain conditions were met. It is concluded that cooperatively brooding in Sclerodermus depends on the evolutionary interests of foundresses and their ability to repel potential co-foundresses.

ECOLOGICAL ENTOMOLOGY (2023)

Review Biology

The rarer-sex effect

Andy Gardner

Summary: The study of sex allocation provides strong evidence for Darwinian adaptation and has been a successful combination of theoretical and empirical research. The fitness outcomes of an individual's sex allocation decisions are influenced by the behavior of others, making it an evolutionary game. This article explores the historical development of understanding the rarer-sex effect in the evolution of sex allocation from Charles Darwin's writing in 1871 to William D. Hamilton's framing in 1972. The step-wise development of theory focused on refining the strategy set, payoff function, and unbeatable strategy. This article is part of the theme issue "Half a century of evolutionary games: a synthesis of theory, application and future directions".

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2023)

Article Behavioral Sciences

Reproductive skew in quasisocial parasitoids: how egalitarian is cooperative brooding?

Xiaomeng Guo et al.

Summary: The study found that reproductive skew in Sclerodermus parasitoids is not strongly associated with kinship among foundresses, but rather appears to be associated with intrinsic or acquired dominance. In different scenarios, there may be a tendency towards non-siblings or females, but overall there is no extreme reproductive skew.

ANIMAL BEHAVIOUR (2022)

Article Entomology

How many cooperators are too many? Foundress number, reproduction and sex ratio in a quasi-social parasitoid

Serena Malabusini et al.

Summary: The size of parasitoid foundress group has significant effects on the benefits of cooperative brooding and brood sex ratios. Increasing group size leads to decreased brood production and per capita success. The sex ratios of broods are strongly female biased, yet not easily explained by current models.

ECOLOGICAL ENTOMOLOGY (2022)

Article Entomology

Performance ofSclerodermus brevicornis,a parasitoid of invasive longhorn beetles, when reared on rice moth larvae

Mohamed Khadar Abdi et al.

Summary: Efficiency of biological control can be improved by developing mass-rearing systems for parasitoids. This study investigated using rice moth larvae as a host for Sclerodermus brevicornis and found it to be a suitable factitious host for mass-rearing and release programmes. Adjusting the female-to-host ratio can optimize offspring production per host and adult female parasitoid.

ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA (2021)

Article Ecology

Does differential mortality after parental investment affect sex ratio evolution? No

Alistair Pirrie et al.

Summary: The classical view suggests an equal sex ratio at birth, while recent models indicate that differential mortality after parental investment can cause deviations. However, selection always leads to an equal sex ratio at birth, regardless of differential mortality effects after parental investment.

EVOLUTION (2021)

Article Behavioral Sciences

Mortality risk promotes cooperation of wasps when paralysing hosts

Zhudong Liu et al.

Summary: Risk plays a role in mediating the level of cooperation in parasitoid wasps, with higher mortality risks leading to more cooperation and lower risks leading to more frequent free riding. This study provides an experimental demonstration of risk-driven cooperation in parasitoids.

ANIMAL BEHAVIOUR (2021)

Article Multidisciplinary Sciences

A solution to a sex ratio puzzle in Melittobia wasps

Jun Abe et al.

Summary: Melittobia australica females exhibit a sophisticated sex ratio behavior, producing consistently female-biased offspring sex ratios when they have not dispersed and adjusting their sex ratio based on the number of females laying eggs when they have dispersed. This indicates that dispersal status serves as an indirect cue for relatedness and influences their sex ratio adjustments.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Behavioral Sciences

Defection on the bounty? Kinship and cooperative exploitation of a rich, essential but dangerous resource

Mike Mesterton-Gibbons et al.

Summary: The study developed a game-theoretic model to explore the question of whether animals should cooperate in obtaining resources. The model predicts that higher values of certain parameters favor cooperation, but cooperation cannot arise among non-relatives. Cooperation can be maintained among non-relatives under certain conditions.

ANIMAL BEHAVIOUR (2021)

Article Evolutionary Biology

Cooperative interactions among females can lead to even more extraordinary sex ratios

Ryosuke Iritani et al.

Summary: Hamilton's theory of local mate competition explains female-biased sex ratios in various organisms, but in some wasp species, the bias is more extreme than predicted. Research shows that cooperation between related females can result in even more female-biased sex ratios, especially when cooperation occurs between mothers and offspring before dispersal. This suggests that additional factors, such as cooperative interactions, play a role in determining sex ratio biases in certain species.

EVOLUTION LETTERS (2021)

Review Entomology

Brood recognition and discrimination in ants

E. Schultner et al.

INSECTES SOCIAUX (2020)

Article Evolutionary Biology

Kinship effects in quasi-social parasitoids I: co-foundress number and relatedness affect suppression of dangerous hosts

Mohamed Khadar Abdi et al.

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY (2020)

Article Evolutionary Biology

Kinship effects in quasi-social parasitoids II: co-foundress relatedness and host dangerousness interactively affect host exploitation

Mohamed Khadar Abdi et al.

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY (2020)

Article Multidisciplinary Sciences

Skew in ovarian activation depends on domicile size in phyllode-glueing thrips

J. D. J. Gilbert et al.

SCIENTIFIC REPORTS (2018)

Article Multidisciplinary Sciences

Mate limitation and sex ratio evolution

Jussi Lehtonen et al.

ROYAL SOCIETY OPEN SCIENCE (2018)

Article Entomology

Sex ratios, virginity, and local resource enhancement in a quasisocial parasitoid

Apostolos Kapranas et al.

ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA (2016)

Article Multidisciplinary Sciences

Mutually beneficial host exploitation and ultra-biased sex ratios in quasisocial parasitoids

Xiuyun Tang et al.

NATURE COMMUNICATIONS (2014)

Article Behavioral Sciences

Primary and secondary sex ratios in a gregarious parasitoid with local mate competition

Sahand K. Khidr et al.

BEHAVIORAL ECOLOGY (2013)

Article Multidisciplinary Sciences

Maternal Care in the Parasitoid Sclerodermus harmandi (Hymenoptera: Bethylidae)

Zhenjie Hu et al.

PLOS ONE (2012)

Article Biology

Sex allocation conflict in insect societies: who wins?

Heikki Helantera et al.

BIOLOGY LETTERS (2009)

Article Biology

The continuous public goods game and the evolution of cooperative sex ratios

Yoshitaka Kamimura et al.

JOURNAL OF THEORETICAL BIOLOGY (2008)

Article Behavioral Sciences

Selfish worker policing controls reproduction in a Temnothorax ant

Nathalie Stroeymeyt et al.

BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY (2007)

Article Biology

Modelling information exchange in worker-queen conflict over sex allocation

I Pen et al.

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2005)

Article Ecology

Worker reproduction in the ant Formica fusca

H Helantera et al.

JOURNAL OF EVOLUTIONARY BIOLOGY (2005)

Article Biology

Convergent evolution of worker policing by egg eating in the honeybee and common wasp

KR Foster et al.

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES (2001)