Density-dependent costs and benefits of male mating success in a wild insect

Niemelä, Petri T.; Tiso, Stefano; Dingemanse, Niels Jeroen

doi:10.1101/733832

Cited by 4 publications

(6 citation statements)

References 47 publications

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“…An individual’s social position in the group can impact its mating behavior in several ways. For instance, connections to conspecifics are fundamentally linked to mate availability, to the degree of intraspecific competition, and to the potential for sexual harassment (e.g., Jirotkul 1999 ; Le Galliard et al 2005 ; Maldonado-Chaparro et al 2018 ; Grant and Grant 2019 ; Niemelä et al 2019 ). Social factors operating at the individual level can generate population-level patterns in terms of which individuals are most likely to breed and with whom they reproduce.…”

Section: Introductionmentioning

confidence: 99%

Social network position predicts male mating success in a small passerine

2021

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Individuals differ in the quantity and quality of their associations with conspecifics. The resulting variation in the positions that individuals occupy within their social environment can affect several aspects of life history, including reproduction. While research increasingly shows how social factors can predict dyadic mating patterns (who will breed with whom), much less is known about how an individual’s social position affects its overall likelihood to acquire mating partner(s). We studied social networks of socially monogamous blue tits (Cyanistes caeruleus) to investigate whether the number and strength of connections to opposite-sex conspecifics, the ratio between same- and opposite-sex connections, and the tendency to move between social groups in the months prior to breeding affect individuals’ success in acquiring 1) a breeding partner and 2) an extrapair partner. After controlling for differences in spatial location, we show that males that moved more often between social groups were more likely to acquire a breeding partner. Moreover, adult males that associated with more females were more likely to sire extrapair young. The number of female associates also predicted the proportion of familiar female breeding neighbors, suggesting that familiarity among neighbors may facilitate opportunities for extrapair matings. In females, none of the network metrics significantly predicted the likelihood of acquiring a breeding or extrapair partner. Our study suggests that the positioning of males within their social environment prior to breeding can translate into future mating success, adding an important new dimension to studies of (extrapair) mating behavior.

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Section: Introductionmentioning

confidence: 99%

Social network position predicts male mating success in a small passerine

2021

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“…Boiteau et al [18], for example, reported high mortality of D. virgifera virgifera due to cyanoacrylate adhesive application. The opposite effect was observed by Niemelä et al [65], who described that RFID tag attachment with cyanoacrylate adhesive did not affect survival of Gryllus campestris Linnaeus, 1758 during 20 days of field observation. In the current study, we did not observe any mortality of G. locorojo following adhesive application.…”

Section: Plos Onementioning

confidence: 77%

Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran

et al. 2021

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In this study, we describe an inexpensive and rapid method of using video analysis and identity tracking to measure the effects of tag weight on insect movement. In a laboratory experiment, we assessed the tag weight and associated context-dependent effects on movement, choosing temperature as a factor known to affect insect movement and behavior. We recorded the movements of groups of flightless adult crickets Gryllus locorojo (Orthoptera:Gryllidae) as affected by no tag (control); by light, medium, or heavy tags (198.7, 549.2, and 758.6 mg, respectively); and by low, intermediate, or high temperatures (19.5, 24.0, and 28.3°C, respectively). Each individual in each group was weighed before recording and was recorded for 3 consecutive days. The mean (± SD) tag mass expressed as a percentage of body mass before the first recording was 26.8 ± 3.7% with light tags, 72 ± 11.2% with medium tags, and 101.9 ± 13.5% with heavy tags. We found that the influence of tag weight strongly depended on temperature, and that the negative effects on movement generally increased with tag weight. At the low temperature, nearly all movement properties were negatively influenced. At the intermediate and high temperatures, the light and medium tags did not affect any of the movement properties. The continuous 3-day tag load reduced the average movement speed only for crickets with heavy tags. Based on our results, we recommend that researchers consider or investigate the possible effects of tags before conducting any experiment with tags in order to avoid obtaining biased results.

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“…If the population is large, a minor increase in an individual's signal is expected to have negligible effects on the individual's reproductive gain. If the population is small, a minor increase in an individual's signal may carry with it larger reproductive advantages, as it is easier for signal receivers to target and reward the signaler when there are fewer signalers to navigate between [20,21]. The ability of a receiver to discern between individual signalers, known as phonotactic selectivity, increases the potential reproductive gain given an increase in signal [22,23].…”

Section: Introductionmentioning

confidence: 99%

Rising above the noise: the influence of population dynamics on the evolution of acoustic signaling

Suswaram,

Bhat,

Yeakel

2024

J. Phys. Complex.

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Acoustic signaling is employed by many sexually reproducing species to select for mates and enhance fitness. However, signaling in dense populations can create an auditory background, or chorus, which may interfere with a signal receiver's phonotactic selectivity, or the ability to distinguish individual signals. Feedback between the strength of an individual's signal, phonotactic selectivity, and population size, may interact in complex ways to impact the evolution of signaling within a population, potentially leading to the emergence of silence. Here we formulate a general model that captures the dynamic feedback between individual acoustic signalers, phonotactic selectivity, and the population-level chorus to explore the eco-evolutionary dynamics of an acoustic trait within a population. We find that population dynamics have a significant influence on the evolutionary dynamics of the signaling trait, and that very sharp transitions separate conspicuous from silent populations. Our framework also reveals that increased phonotactic selectivity promotes the stability of signaling populations, and that transitions from signaling to silence are prone to hysteresis. We suggest that understanding the relationship between factors influencing population size, such as environmental productivity, as well as factors influencing phonotactic selectivity, such as anthropogenic noise, are central to understanding the complex mosaic of acoustically signaling and silent populations.

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Density-dependent costs and benefits of male mating success in a wild insect

Cited by 4 publications

References 47 publications

Social network position predicts male mating success in a small passerine

Social network position predicts male mating success in a small passerine

Estimating the effect of tracking tag weight on insect movement using video analysis: A case study with a flightless orthopteran

Rising above the noise: the influence of population dynamics on the evolution of acoustic signaling

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