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Pollo P, Lagisz M, Yang Y, Culina A, Nakagawa S. Synthesis of sexual selection: a systematic map of meta-analyses with bibliometric analysis. Biol Rev Camb Philos Soc 2024. [PMID: 38982618 DOI: 10.1111/brv.13117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 06/16/2024] [Accepted: 06/19/2024] [Indexed: 07/11/2024]
Abstract
Sexual selection has been a popular subject within evolutionary biology because of its central role in explaining odd and counterintuitive traits observed in nature. Consequently, the literature associated with this field of study became vast. Meta-analytical studies attempting to draw inferences from this literature have now accumulated, varying in scope and quality, thus calling for a synthesis of these syntheses. We conducted a systematic literature search to create a systematic map with a report appraisal of meta-analyses on topics associated with sexual selection, aiming to identify the conceptual and methodological gaps in this secondary literature. We also conducted bibliometric analyses to explore whether these gaps are associated with the gender and origin of the authors of these meta-analyses. We included 152 meta-analytical studies in our systematic map. We found that most meta-analyses focused on males and on certain animal groups (e.g. birds), indicating severe sex and taxonomic biases. The topics in these studies varied greatly, from proximate (e.g. relationship of ornaments with other traits) to ultimate questions (e.g. formal estimates of sexual selection strength), although the former were more common. We also observed several common methodological issues in these studies, such as lack of detailed information regarding searches, screening, and analyses, which ultimately impairs the reliability of many of these meta-analyses. In addition, most of the meta-analyses' authors were men affiliated to institutions from developed countries, pointing to both gender and geographical authorship biases. Most importantly, we found that certain authorship aspects were associated with conceptual and methodological issues in meta-analytical studies. Many of our findings might simply reflect patterns in the current state of the primary literature and academia, suggesting that our study can serve as an indicator of issues within the field of sexual selection at large. Based on our findings, we provide both conceptual and analytical recommendations to improve future studies in the field of sexual selection.
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Affiliation(s)
- Pietro Pollo
- Evolution & Ecology Research Centre, School of Biological, Earth & Environmental Sciences, University of New South Wales, Gate 9 High St., Kensington, Sydney, NSW, 2052, Australia
| | - Malgorzata Lagisz
- Evolution & Ecology Research Centre, School of Biological, Earth & Environmental Sciences, University of New South Wales, Gate 9 High St., Kensington, Sydney, NSW, 2052, Australia
| | - Yefeng Yang
- Evolution & Ecology Research Centre, School of Biological, Earth & Environmental Sciences, University of New South Wales, Gate 9 High St., Kensington, Sydney, NSW, 2052, Australia
| | - Antica Culina
- Ruđer Bošković Institute, Bijenička Cesta 54, Zagreb, 10000, Croatia
| | - Shinichi Nakagawa
- Evolution & Ecology Research Centre, School of Biological, Earth & Environmental Sciences, University of New South Wales, Gate 9 High St., Kensington, Sydney, NSW, 2052, Australia
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Hegyi G, Laczi M, Szabó G, Sarkadi F, Török J. Plumage color degradation indicates reproductive effort: an experiment. Sci Rep 2023; 13:18770. [PMID: 37907494 PMCID: PMC10618437 DOI: 10.1038/s41598-023-45348-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023] Open
Abstract
Plumage color has traditionally been regarded as a static ornamental trait, but evidence is accumulating for significant color changes without molt that typically reduce the conspicuousness of ornamentation. In some species, the social partner seems to increase its reproductive investment if the color trait is experimentally enhanced, suggesting that color change could act as a signal. However, the information content of this signal is so far unclear. For example, birds in poor condition or making greater effort may deteriorate more severely. We used brood size manipulations to alter the reproductive effort of male and female collared flycatchers Ficedula albicollis. Both sexes showed less severe decline in some reflectance attribute of their white breast when their brood was experimentally reduced. In each sex, greater deterioration of the reflectance trait affected by the manipulation was accompanied by increased feeding rate by the partner. These feeding patterns do not prove, but are consistent with, a compensatory response by the partner to induced degradation. The manipulation effects on color change we detected confirm for the first time that plumage color deterioration can indicate current reproductive effort, thereby providing a potential fitness advantage to social partners that react to such deterioration.
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Affiliation(s)
- Gergely Hegyi
- Behavioral Ecology Group, Department of Systematic Zoology and Ecology, ELTE Eötvös Loránd University, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary.
- HUN-REN-ELTE-MTM Integrative Ecology Research Group, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary.
| | - Miklós Laczi
- Behavioral Ecology Group, Department of Systematic Zoology and Ecology, ELTE Eötvös Loránd University, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
- HUN-REN-ELTE-MTM Integrative Ecology Research Group, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
- Barn Owl Foundation, Temesvári út 8, 8744, Orosztony, Hungary
| | - Gyula Szabó
- Behavioral Ecology Group, Department of Systematic Zoology and Ecology, ELTE Eötvös Loránd University, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
| | - Fanni Sarkadi
- Behavioral Ecology Group, Department of Systematic Zoology and Ecology, ELTE Eötvös Loránd University, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
| | - János Török
- Behavioral Ecology Group, Department of Systematic Zoology and Ecology, ELTE Eötvös Loránd University, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
- HUN-REN-ELTE-MTM Integrative Ecology Research Group, 1117 Pázmány Péter sétány 1/C, Budapest, Hungary
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Ji G, Zhang M, Liu Y, Shan Y, Tu Y, Ju X, Zou J, Shu J, Wu J, Xie J. A gene co‐expression network analysis of the candidate genes and molecular pathways associated with feather follicle traits of chicken skin. J Anim Breed Genet 2020; 138:122-134. [DOI: 10.1111/jbg.12481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/23/2020] [Accepted: 04/03/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Gai‐ge Ji
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Ming Zhang
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yi‐fan Liu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yan‐ju Shan
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yun‐jie Tu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Xiao‐jun Ju
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jian‐min Zou
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jing‐ting Shu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jun‐feng Wu
- Jiangsu Li‐hua Animal Husbandry Company Jiangsu China
| | - Jin‐fang Xie
- Jiangxi Academy of Agricultural Sciences Nanchang China
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Male Red-crested Cardinal plumage coloration is associated with parental abilities and breeding performance. Sci Rep 2019; 9:10958. [PMID: 31358834 PMCID: PMC6662885 DOI: 10.1038/s41598-019-47498-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 07/18/2019] [Indexed: 11/24/2022] Open
Abstract
Avian plumage coloration deriving from carotenoid-based pigments is among the most honest signals of individual quality. It has been argued that females may differentially allocate resources based on mate attractiveness or quality, paying the costs of investing more in a current breeding attempt. We tested predictions of the differential allocation hypothesis on the natural variation of carotenoid-based plumage using the brightly red-colored head plumage of the Red-crested Cardinal (Paroaria coronata). It is to our knowledge the first time this hypothesis is tested on the natural variation of this pigment on a wild bird. We found that the brightness of the males’ red plumage patch is positively associated with their reproductive success and the nest defence they provide. We also found that brighter males invest less in their offspring (by delivering less food to their nestlings and poorly cleaning the nest) than duller males and, by contrast, females mated with brighter males invest more in parental care. Our results are consistent with the differential allocation hypothesis: differential allocation allowed breeding pairs with brighter males to produce more offspring, suggesting that it can be considered adaptive and should be included in studies of eco-evolutionary dynamics.
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Hegyi G, Jenni-Eiermann S, Boross N, Garamszegi LZ, Laczi M, Kötél D, Krenhardt K, Jablonszky M, Markó G, Nagy G, Rosivall B, Szász E, Török J. Ornaments and condition: plumage patch sizes, nutritional reserve state, reserve accumulation, and reserve depletion. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2701-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Szász E, Markó G, Hegyi G, Török J, Garamszegi LZ, Rosivall B. Nest-site defence aggression during courtship does not predict nestling provisioning in male collared flycatchers. Behav Ecol Sociobiol 2019. [DOI: 10.1007/s00265-019-2672-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Laczi M, Kötél D, Török J, Hegyi G. Mutual plumage ornamentation and biparental care: consequences for success in different environments. Behav Ecol 2017. [DOI: 10.1093/beheco/arx099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Romano A, Costanzo A, Rubolini D, Saino N, Møller AP. Geographical and seasonal variation in the intensity of sexual selection in the barn swallowHirundo rustica: a meta-analysis. Biol Rev Camb Philos Soc 2016; 92:1582-1600. [DOI: 10.1111/brv.12297] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/13/2016] [Accepted: 07/15/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Andrea Romano
- Dipartimento di Bioscienze; Università degli Studi di Milano; via Celoria 26 I-20133 Milano Italy
| | - Alessandra Costanzo
- Dipartimento di Bioscienze; Università degli Studi di Milano; via Celoria 26 I-20133 Milano Italy
| | - Diego Rubolini
- Dipartimento di Bioscienze; Università degli Studi di Milano; via Celoria 26 I-20133 Milano Italy
| | - Nicola Saino
- Dipartimento di Bioscienze; Università degli Studi di Milano; via Celoria 26 I-20133 Milano Italy
| | - Anders Pape Møller
- Ecologie Systématique Evolution, CNRS, Université Paris-Sud, AgroParisTech; Université Paris-Saclay; F-91400 Orsay France
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Prokop ZM, Drobniak SM. Genetic variation in male attractiveness: It is time to see the forest for the trees. Evolution 2016; 70:913-21. [PMID: 26940698 DOI: 10.1111/evo.12898] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 02/15/2016] [Indexed: 01/19/2023]
Abstract
Female choice based on multiple male traits, rather than on any single one, has been reported in many species and may well be a rule rather than an exception. However, the implications this has for selection acting on choosiness itself remain underappreciated. We argue that this constitutes one of the important impediments to our understanding of the evolution of mate choice. We discuss this issue primarily in the context of the Fisherian model of sexual selection. We review theory and empirical data, showing how the crucial parameter of the model-genetic variation in male attractiveness-can be estimated when attractiveness is a function of multiple traits. Based on the reviewed theory, we show how relying on individual male traits, instead of overall attractiveness, can produce biased estimates of Fisherian benefits of female choice. This bias can be substantial, especially when many traits contribute to male attractiveness. We discuss a number of methodological issues that, we hope, will stimulate future studies and help resolving the long-standing mystery of mate choice.
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Affiliation(s)
- Zofia M Prokop
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland.
| | - Szymon M Drobniak
- Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Krakow, Poland.,Anthropological Institute and Museum, University of Zurich, Winterthurerstrasse 190, CH, 8057, Zurich, Switzerland
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