Silk wrapping of nuptial gifts aids cheating behaviour in male spiders

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Silk wrapping of nuptial gifts aids cheating behaviour in male spiders. / Ghislandi, Paolo Giovanni; Beyer, Michelle; Velado, Patricia; Tuni, Cristina.

In: Behavioral Ecology, Vol. 28, No. 3, 2017, p. 744-749.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Ghislandi, PG, Beyer, M, Velado, P & Tuni, C 2017, 'Silk wrapping of nuptial gifts aids cheating behaviour in male spiders', Behavioral Ecology, vol. 28, no. 3, pp. 744-749. https://doi.org/10.1093/beheco/arx028

APA

Ghislandi, P. G., Beyer, M., Velado, P., & Tuni, C. (2017). Silk wrapping of nuptial gifts aids cheating behaviour in male spiders. Behavioral Ecology, 28(3), 744-749. https://doi.org/10.1093/beheco/arx028

CBE

Ghislandi PG, Beyer M, Velado P, Tuni C. 2017. Silk wrapping of nuptial gifts aids cheating behaviour in male spiders. Behavioral Ecology. 28(3):744-749. https://doi.org/10.1093/beheco/arx028

MLA

Ghislandi, Paolo Giovanni et al. "Silk wrapping of nuptial gifts aids cheating behaviour in male spiders". Behavioral Ecology. 2017, 28(3). 744-749. https://doi.org/10.1093/beheco/arx028

Vancouver

Ghislandi PG, Beyer M, Velado P, Tuni C. Silk wrapping of nuptial gifts aids cheating behaviour in male spiders. Behavioral Ecology. 2017;28(3):744-749. https://doi.org/10.1093/beheco/arx028

Author

Ghislandi, Paolo Giovanni ; Beyer, Michelle ; Velado, Patricia ; Tuni, Cristina. / Silk wrapping of nuptial gifts aids cheating behaviour in male spiders. In: Behavioral Ecology. 2017 ; Vol. 28, No. 3. pp. 744-749.

Bibtex

@article{9f42f2f5bc4a4d85a66dcc3f3d82f479,
title = "Silk wrapping of nuptial gifts aids cheating behaviour in male spiders",
abstract = "Sexual traits, such as nuptial gifts, are costly and often condition-dependent. Males should be under selection to reduce these costs without impairing their reproductive success. Spider gifts consist of silk-wrapped food, but may also consist of worthless (non-nutritive) donations that successfully lead to mating, despite yielding shorter copulations. Worthless gifts may either represent a cheaper cheating strategy or the inability to produce genuine gifts due to resource limitations (i.e. poor body condition). Unless energetic constraints limit expenditure in silk, males should apply more silk to worthless gifts to compensate for their lower reproductive value. We ask whether in Pisaura mirabilis 1) worthless gifts are condition-dependent and 2) males strategically use silk based on gift type (genuine vs worthless). We tested whether male body condition explains the gift-giving strategy and compared silk amounts covering each gift type, in gifts collected from the field and produced in the laboratory by males given different feeding regimes. Our findings show that worthless gifts are not promoted by poor body condition or limited resources. They rather result from a cheating strategy evolved to opportunistically reduce the costs of genuine gifts while ensuring nutritional advantages, with cheaters gaining body mass. Males applied more silk to worthless gifts regardless of their body condition or feeding state, suggesting they can strategically adjust silk expenditure despite its costs. By masking gift contents and prolonging female feeding, silk is crucial for the maintenance of cheating, likely resulting from an evolutionary arms race between male deception and female assessment.",
keywords = "deception, mating strategies, nuptial gifts, sperm competition, PISAURA-MIRABILIS, SEXUAL SELECTION, SPERM COMPETITION, GIVING SPIDER, SENSORY EXPLOITATION, CONDITION DEPENDENCE, WORTHLESS DONATIONS, FEEDING SPIDER, MATE CHOICE, INSECTS",
author = "Ghislandi, {Paolo Giovanni} and Michelle Beyer and Patricia Velado and Cristina Tuni",
year = "2017",
doi = "10.1093/beheco/arx028",
language = "English",
volume = "28",
pages = "744--749",
journal = "Behavioral Ecology",
issn = "1045-2249",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Silk wrapping of nuptial gifts aids cheating behaviour in male spiders

AU - Ghislandi, Paolo Giovanni

AU - Beyer, Michelle

AU - Velado, Patricia

AU - Tuni, Cristina

PY - 2017

Y1 - 2017

N2 - Sexual traits, such as nuptial gifts, are costly and often condition-dependent. Males should be under selection to reduce these costs without impairing their reproductive success. Spider gifts consist of silk-wrapped food, but may also consist of worthless (non-nutritive) donations that successfully lead to mating, despite yielding shorter copulations. Worthless gifts may either represent a cheaper cheating strategy or the inability to produce genuine gifts due to resource limitations (i.e. poor body condition). Unless energetic constraints limit expenditure in silk, males should apply more silk to worthless gifts to compensate for their lower reproductive value. We ask whether in Pisaura mirabilis 1) worthless gifts are condition-dependent and 2) males strategically use silk based on gift type (genuine vs worthless). We tested whether male body condition explains the gift-giving strategy and compared silk amounts covering each gift type, in gifts collected from the field and produced in the laboratory by males given different feeding regimes. Our findings show that worthless gifts are not promoted by poor body condition or limited resources. They rather result from a cheating strategy evolved to opportunistically reduce the costs of genuine gifts while ensuring nutritional advantages, with cheaters gaining body mass. Males applied more silk to worthless gifts regardless of their body condition or feeding state, suggesting they can strategically adjust silk expenditure despite its costs. By masking gift contents and prolonging female feeding, silk is crucial for the maintenance of cheating, likely resulting from an evolutionary arms race between male deception and female assessment.

AB - Sexual traits, such as nuptial gifts, are costly and often condition-dependent. Males should be under selection to reduce these costs without impairing their reproductive success. Spider gifts consist of silk-wrapped food, but may also consist of worthless (non-nutritive) donations that successfully lead to mating, despite yielding shorter copulations. Worthless gifts may either represent a cheaper cheating strategy or the inability to produce genuine gifts due to resource limitations (i.e. poor body condition). Unless energetic constraints limit expenditure in silk, males should apply more silk to worthless gifts to compensate for their lower reproductive value. We ask whether in Pisaura mirabilis 1) worthless gifts are condition-dependent and 2) males strategically use silk based on gift type (genuine vs worthless). We tested whether male body condition explains the gift-giving strategy and compared silk amounts covering each gift type, in gifts collected from the field and produced in the laboratory by males given different feeding regimes. Our findings show that worthless gifts are not promoted by poor body condition or limited resources. They rather result from a cheating strategy evolved to opportunistically reduce the costs of genuine gifts while ensuring nutritional advantages, with cheaters gaining body mass. Males applied more silk to worthless gifts regardless of their body condition or feeding state, suggesting they can strategically adjust silk expenditure despite its costs. By masking gift contents and prolonging female feeding, silk is crucial for the maintenance of cheating, likely resulting from an evolutionary arms race between male deception and female assessment.

KW - deception

KW - mating strategies

KW - nuptial gifts

KW - sperm competition

KW - PISAURA-MIRABILIS

KW - SEXUAL SELECTION

KW - SPERM COMPETITION

KW - GIVING SPIDER

KW - SENSORY EXPLOITATION

KW - CONDITION DEPENDENCE

KW - WORTHLESS DONATIONS

KW - FEEDING SPIDER

KW - MATE CHOICE

KW - INSECTS

U2 - 10.1093/beheco/arx028

DO - 10.1093/beheco/arx028

M3 - Journal article

VL - 28

SP - 744

EP - 749

JO - Behavioral Ecology

JF - Behavioral Ecology

SN - 1045-2249

IS - 3

ER -