Sex ratio strategies in species subject to local mate competition (LMC), and in particular their fit to quantitative theoretical predictions, provide insight into constraints upon adaptation. Pollinating fig wasps are widely used in such studies because their ecology resembles theory assumptions, but the cues used by foundresses to assess potential LMC have not previously been determined. We show that Liporrhopalum tentacularis females (foundresses) use their clutch size as a cue. First, we make use of species ecology (foundresses lay multiple clutches, with second clutches smaller than first) to show that increases in sex ratio in multi-foundress figs occur only when foundresses are oviposition site limited, i.e. that there is no direct response to foundress density. Second, we introduce a novel technique to quantify foundress oviposition sequences and show, consistent with the theoretical predictions concerning clutch size-only strategies, that they produce mainly male offspring at the start of bouts, followed by mostly females interspersed by a few males. We then discuss the implications of our findings for our understanding of the limits of the ability of natural selection to produce 'perfect' organisms, and for our understanding of when different cue use patterns evolve.

Purpose Organizational politics has been a topic of conceptual and empirical interest for researchers and practitioners for many years. The purpose of this paper is to examine the relationship between organizational politics and employee work outcomes in educational institutions. In addition, this paper also aims to assess the moderating role of social capital. Design/methodology/approach Employee perceptions about organizational politics and its impact on their work outcomes have been assessed empirically with a sample of 270 full-time employees in higher education institutions of Pakistan. The data have been collected from faculty members of five universities of Pakistan using survey method. SPSS and AMOS have been used to analyze the data and SEM has been used to test the hypotheses. Findings The results indicate a moderating effect of social capital on the relationship between perceived organizational politics and employee outcomes, and the most significant employee outcomes are job stress, job satisfaction and turnover intentions. The findings of the study support the view that organizational politics has negative association with employee job stress and turnover intentions. Research limitations/implications Higher education sector in Pakistan is facing certain challenges, which affect talent retention. The findings of this study will help the administration of higher education institutions to develop effective strategies to cope with the challenges of organizational politics, such as motivation, satisfaction and retention of their employees. Originality/value The study adds to the literature on organizational politics by highlighting and validating its adverse effects on employee work outcomes in the context of Pakistani higher education.

Fig trees (Ficus) and their species‐specific pollinators (Agaonidae) represent a remarkable example of a coevolved mutualism. A number of non‐pollinating fig wasps (gallers and parasitoids, NPFW) are also an integral part of the mutualism, but have a negative impact on the reproductive success of the mutualists. Most NPFW belong to subfamilies only associated with figs and clearly have a long association with the plants and their pollinators. In the present study, the costs imposed by an undescribed parasitoid Sycoscapter sp. on its host pollinator Kradibia (= Liporrhopalum) tentacularis of a dioecious fig tree Ficus montana maintained under glasshouse conditions are described. It was asked whether pollinator numbers and sex ratios are changed by the presence or absence of parasitoids within individual figs. The effect of fig densities on parasitism rates at two spatial scales and within the general glasshouse population was also recorded. Parasitoid aggregation in relation to pollinator densities inside figs was also examined. Sycoscapter sp. significantly reduced the numbers of pollinators emerging from the figs, but host sex ratios were not distorted. The parasitoid showed host density independence at both spatial scales of fig densities, but targeted individual figs that contained higher initial densities of pollinators.

Pollinator fig wasps (Agaonidae) are a model system for studies of sex ratio evolution. They lay their eggs in galled ovules within figs. Only one adult emerges from each gall, suggesting that only one egg is always laid per ovule, but if double oviposition occurs then the assumption that adult (realised) sex ratios of fig wasps are representative of primary sex ratios may be violated. Many galls also fail to produce any wasps. If they initially contained eggs then differential mortality rates may also modify realized sex ratios. We investigated whether Kradibia (= Liporrhopalum) tentacularis foundresses in Ficus montana figs avoid laying in ovules that already contain eggs. Comparisons of oviposition frequencies and wasp emergence frequencies showed that most galls that failed to produce wasps will have had eggs laid in them, but few occupied ovules contained two eggs. Realised sex ratios therefore do not necessarily reflect primary sex ratios in this species, but double oviposition is not responsible.