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Tartu S, Lorrain-Soligon L, Cheron M, Dupoué A, Brischoux F. Colouration matters in dull toads: ultraviolet adornment for ladies and agrochemicals fading effects. Oecologia 2023; 203:491-502. [PMID: 37982911 DOI: 10.1007/s00442-023-05482-y] [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: 05/24/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023]
Abstract
Integument colouration can influence many aspects of fitness, and is under strong sexual selection. Amphibians often express sexual dichromatism, and ultra-violet (UV) colouration is usually biased toward males as a sexual signal. As an honest signal, colouration is related to several individual traits, but can also be related to environmental factors such as anthropogenic pollutants, to which amphibians are highly sensitive. In this study, we investigated sexual dichromatism and UV reflectance covering a large visual spectrum (wavelength ranging from 300 to 700 nm) on different body areas (throat, ventral and dorsal areas), in a widespread amphibian species, the spiny toad (Bufo spinosus). Then, we tested the impact of chronic exposure to two widespread herbicides (glyphosate's primary metabolite [AMPA] and Nicosulfuron) on their colouration. We found a strong but unexpected sexual dichromatism with females reflecting more in the UV spectrum (throat and ventral area) than males, suggesting these body parts might be critical in intra-specific signalling. Females with higher ventral UV reflectance were in better body condition, suggesting an honest signal role of UV reflectance which could influence male choice. Throat colouration was further differentially influenced by agrochemicals according to sexes. In AMPA-exposed males, throat was more saturated in yellow-orange than in control males, and Nicosulfuron exposure decreased the throat's reflectance hue in females, which can bear consequences on mate attractiveness. Future studies need to investigate the underlying mechanisms that are altered by agrochemical exposure.
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Affiliation(s)
- Sabrina Tartu
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de la Rochelle, 79360, Villiers-en-Bois, France.
| | - Léa Lorrain-Soligon
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de la Rochelle, 79360, Villiers-en-Bois, France.
| | - Marion Cheron
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de la Rochelle, 79360, Villiers-en-Bois, France
| | - Andréaz Dupoué
- Ifremer, Univ Brest, CNRS, IRD, UMR 6539, LEMAR, Plouzane, France
| | - François Brischoux
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de la Rochelle, 79360, Villiers-en-Bois, France
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2
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Villada-Bedoya S, Córdoba-Aguilar A, Escobar F, González-Tokman D. Contamination effects on sexual selection in wild dung beetles. J Evol Biol 2022; 35:905-918. [PMID: 35647730 DOI: 10.1111/jeb.14024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 04/19/2022] [Accepted: 05/02/2022] [Indexed: 11/26/2022]
Abstract
Sexual selection influences the expression of secondary sexual traits, which are costly to produce and maintain and are thus considered honest indicators of individual condition. Therefore, sexual selection could select for high-quality individuals able to respond to stressful conditions, with impacts on population-level fitness. We sampled dung beetles from 19 pastures and investigated if contamination by herbicides and veterinary drugs modifies male investment in sexually selected traits and has associated population-level effects. We measured horn size, condition dependence (i.e. size-corrected body mass) and allometry, besides abundance and sexual size dimorphism in three species: Copris incertus, Euoniticellus intermedius and Digitonthophagus gazella. In contrary to our expectations, horn size was independent of contamination and individual condition. However, strong positive allometric relationships were reduced by herbicide contamination for C. incertus and D. gazella and were increased by ivermectin for C. incertus, revealing differential investment in horn production according to body size in contaminated habitats. At the population level, large-horned C. incertus males were more abundant in contaminated pastures, potentially revealing a case of evolutionary rescue by sexual selection or a plastic response to higher population densities. Finally, chemical compounds affected the sexual size dimorphism of all three species, with potential effects on female fecundity or intrasexual selection. Together, our findings indicate that contamination interferes with sexual selection processes in the wild, opening new questions regarding the role of sexual selection in favouring species persistence in contaminated environments.
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Affiliation(s)
| | - Alex Córdoba-Aguilar
- Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Daniel González-Tokman
- Red de Ecoetología, Instituto de Ecología A.C, Xalapa, Mexico.,CONACYT, Mexico City, Mexico
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Cronin AD, Smit JAH, Muñoz MI, Poirier A, Moran PA, Jerem P, Halfwerk W. A comprehensive overview of the effects of urbanisation on sexual selection and sexual traits. Biol Rev Camb Philos Soc 2022; 97:1325-1345. [PMID: 35262266 PMCID: PMC9541148 DOI: 10.1111/brv.12845] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 02/11/2022] [Accepted: 02/16/2022] [Indexed: 12/18/2022]
Abstract
Urbanisation can affect mating opportunities and thereby alter inter- and intra-sexual selection pressures on sexual traits. Biotic and abiotic urban conditions can influence an individual's success in pre- and post-copulatory mating, for example through impacts on mate attraction and mate preference, fertilisation success, resource competition or rival interactions. Divergent sexual selection pressures can lead to differences in behavioural, physiological, morphological or life-history traits between urban and non-urban populations, ultimately driving adaptation and speciation. Most studies on urban sexual selection and mating interactions report differences between urban and non-urban populations or correlations between sexual traits and factors associated with increased urbanisation, such as pollution, food availability and risk of predation and parasitism. Here we review the literature on sexual selection and sexual traits in relation to urbanisation or urban-associated conditions. We provide an extensive list of abiotic and biotic factors that can influence processes involved in mating interactions, such as signal production and transmission, mate choice and mating opportunities. We discuss all relevant data through the lens of two, non-mutually exclusive theories on sexual selection, namely indicator and sensory models. Where possible, we indicate whether these models provide the same or different predictions regarding urban-adapted sexual signals and describe different experimental designs that can be useful for the different models as well as to investigate the drivers of sexual selection. We argue that we lack a good understanding of: (i) the factors driving urban sexual selection; (ii) whether reported changes in traits result in adaptive benefits; and (iii) whether these changes reflect a short-term ecological, or long-term evolutionary response. We highlight that urbanisation provides a unique opportunity to study the process and outcomes of sexual selection, but that this requires a highly integrative approach combining experimental and observational work.
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Affiliation(s)
- Andrew D Cronin
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Judith A H Smit
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Matías I Muñoz
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Armand Poirier
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Peter A Moran
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Paul Jerem
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
| | - Wouter Halfwerk
- Department of Ecological Sciences, Vrije Universiteit, De Boelelaan 1085, Amsterdam, 1081 HV, The Netherlands
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4
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Du K, Pippel M, Kneitz S, Feron R, da Cruz I, Winkler S, Wilde B, Avila Luna EG, Myers E, Guiguen Y, Macias Garcia C, Schartl M. Genome biology of the Darkedged Splitfin, Girardinichthys multiradiatus, and the evolution of sex chromosomes and placentation. Genome Res 2022; 32:583-594. [PMID: 35082141 PMCID: PMC8896457 DOI: 10.1101/gr.275826.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 01/10/2022] [Indexed: 11/24/2022]
Abstract
Viviparity evolved independently about 150 times in vertebrates and more than 20 times in fish. Several lineages added to the protection of the embryo inside the body of the mother, the provisioning of nutrients, and physiological exchange. This often led to the evolution of a placenta. Among fish, one of the most complex systems serving the function of the placenta is the embryonal trophotaenia/ovarian luminal epithelium of the goodeid fishes. For a better understanding of this feature and others of this group of fishes, high-quality genomic resources are essential. We have sequenced the genome of the darkedged splitfin, Girardinichthys multiradiatus. The assembly is chromosome level and includes the X and Y Chromosomes. A large male-specific region on the Y was identified covering 80% of Chromosome 20, allowing some first inferences on the recent origin and a candidate male sex determining gene. Genome-wide transcriptomics uncovered sex-specific differences in brain gene expression with an enrichment for neurosteroidogenesis and testis genes in males. The expression signatures of the splitfin embryonal and maternal placenta showed overlap with homologous tissues including human placenta, the ovarian follicle epithelium of matrotrophic poeciliid fish species and the brood pouch epithelium of the seahorse. Our comparative analyses on the evolution of embryonal and maternal placenta indicate that the evolutionary novelty of maternal provisioning development repeatedly made use of genes that already had the same function in other tissues. In this way, preexisting modules are assembled and repurposed to provide the molecular changes for this novel trait.
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Affiliation(s)
| | - Martin Pippel
- Max-Planck Institute of Molecular Cell Biology and Genetics
| | | | - Romain Feron
- University of Lausanne, Swiss Institute of Bioinformatics, INRAE, LPGP
| | | | - Sylke Winkler
- Max-Planck Institute of Molecular Cell Biology and Genetics
| | | | - Edgar G Avila Luna
- Instituto de Ecologia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito exterior s/n anexo al Jardín Botánico
| | - Eugene Myers
- Max-Planck Institute of Molecular Cell Biology and Genetics
| | | | - Constantino Macias Garcia
- Instituto de Ecologia, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito exterior s/n anexo al Jardín Botánico
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Ruiz‐Guzmán G, Cordero‐Molina S, Krams I, Contreras‐Garduño J. Interactions between oxidative stress and attractiveness to mates and individual mate choice in the beetle
Tenebrio molitor. Ethology 2020. [DOI: 10.1111/eth.13108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Gloria Ruiz‐Guzmán
- Laboratorio de Ecología Evolutiva Escuela Nacional de Estudios Superiores Universidad Nacional Autónoma de México Ciudad de México México
| | - Sagrario Cordero‐Molina
- Laboratorio de Ecología Evolutiva Escuela Nacional de Estudios Superiores Universidad Nacional Autónoma de México Ciudad de México México
| | - Indrikis Krams
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
- Department of Zoology and Animal Ecology Faculty of Biology University of Latvia Rīga Latvia
- Latvian Biomedical Research and Study Centre Rīga Latvia
| | - Jorge Contreras‐Garduño
- Laboratorio de Ecología Evolutiva Escuela Nacional de Estudios Superiores Universidad Nacional Autónoma de México Ciudad de México México
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6
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Cervantes-Camacho I, Guerrero-Estévez SM, López MF, Alarcón-Hernández E, López-López E. Effects of Bisphenol A on Foxl2 gene expression and DNA damage in adult viviparous fish Goodeaatripinnis. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:95-112. [PMID: 32075523 DOI: 10.1080/15287394.2020.1730282] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bisphenol A (BPA) is an emerging pollutant of global concern. Viviparous fish Goodea atripinnis is endemic to the Central Mexican Plateau where BPA was detected; however, few studies examined the influence of this chemical on native viviparous fish. The effects of BPA (sublethal dose) were determined on DNA integrity and Foxl2 expression in G. atripinnis gonads, and interactions of BPA with FOXL2 protein. Genotoxicity analysis revealed that % comets, at 14 and 28 days and comet tail length (at 14 days) were significantly higher in exposed compared to controls. In general, the % DNA tail was not markedly higher in BPA-treated fish; however, tail moment related to tail length exhibited significant increases in DNA damage. RT-qPCR assays showed Foxl2 overexpression after 14 and 28 days of exposure in females; while in males, Foxl2 was overexpressed after 28 days. In silico analysis demonstrated that BPA interacted with seven residues located in FOXL2 homeodomain. In summary, sublethal BPA doses induced DNA damage and changes in Foxl2 expression in gonadal cells of G. atripinnis, which may adversely affect reproduction in BPA-exposed wild populations. Foxl2 overexpression and BPA-FOXL2 interaction suggested alterations in processes involving Foxl2. Viviparous fish may thus serve as potential non-conventional models for assessing pollutants effects.
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Affiliation(s)
- Isabel Cervantes-Camacho
- Laboratorio De Evaluación De La Salud De Los Ecosistemas Acuáticos, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Carpio Y Plan De Ayala S/N Col. Sto. Tomás, Ciudad de México, México
| | - Sandra M Guerrero-Estévez
- Laboratorio De Evaluación De La Salud De Los Ecosistemas Acuáticos, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Carpio Y Plan De Ayala S/N Col. Sto. Tomás, Ciudad de México, México
| | - María Fernanda López
- Laboratorio De Variación Biológica Y Evolución, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Carpio Y Plan De Ayala S/N Col. Sto. Tomás, Ciudad de México, México
| | - Ernesto Alarcón-Hernández
- Laboratorio De Genética Molecular, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Carpio Y Plan De Ayala S/N Col. Sto. Tomás, Ciudad de México, México
| | - Eugenia López-López
- Laboratorio De Evaluación De La Salud De Los Ecosistemas Acuáticos, Escuela Nacional De Ciencias Biológicas, Instituto Politécnico Nacional. Prolongación Carpio Y Plan De Ayala S/N Col. Sto. Tomás, Ciudad de México, México
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7
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de Souza GC, Viana MD, Goés LDM, Sanchez-Ortiz BL, Silva GAD, Pinheiro WBDS, Santos CBRD, Carvalho JCT. Reproductive toxicity of the hydroethanolic extract of the flowers ofAcmella oleraceaand spilanthol in zebrafish: In vivo and in silico evaluation. Hum Exp Toxicol 2019; 39:127-146. [DOI: 10.1177/0960327119878257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydroethanolic preparations of Acmella oleracea is used in the north of Brazil as a female aphrodisiac. Thus, the objective of this study was to evaluate the action of the hydroethanolic extract of Acmella oleracea (EHFAo) flowers (21.873 and 44.457 mg/kg) and spilanthol (3 mg/kg) administered orally on reproductive performance and effects on the embryonic development of zebrafish F1 generation. It was observed that in the groups in which males and females received EHFAo and spilanthol, the spawning was interrupted, whereas in the groups in which only the females were treated, spawning occurred during the 21 days. Thus, in the histopathological evaluation of the gonads, it was possible to observe that the percentage of mature cells in the spermatozoa and females was significantly reduced. Only the embryo groups in which parental generation was treated with EHFAo showed lethal and teratogenic effects. On the other hand, the parental groups treated with the spilanthol presented only the lethality. Spilanthol and some metabolites showed good oral availability and important toxicological properties. Thus, it is suggested that the treatment of parental generation of zebrafish with EHFAo and spilanthol caused severe changes in the gonads and on fertility. However, on the embryo, the most striking effects in the development were recorded in the groups in which the parental generation was treated with the EHFAo, while the spilanthol influenced the lethality of the embryos.
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Affiliation(s)
- GC de Souza
- Programa de Pós-Graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
| | - MD Viana
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
| | - LDM Goés
- Programa de Pós-Graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
| | - BL Sanchez-Ortiz
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
| | - GA da Silva
- Programa de Pós-Graduação em Química, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
| | - WB de Souza Pinheiro
- Programa de Pós-Graduação em Química, Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, Pará, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Pará, Belém, Pará, Brasil
| | - CB Rodrigues dos Santos
- Programa de Pós-Graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
- Laboratório de Modelagem e Química Computacional, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
| | - JC Tavares Carvalho
- Programa de Pós-Graduação em Inovação Farmacêutica, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
- Laboratório de Pesquisa em Fármacos, Departamento de Ciências Biológicas e da Saúde, Colegiado de Farmácia, Universidade Federal do Amapá, Macapá, Amapá, Brasil
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Méndez-Janovitz M, Gonzalez-Voyer A, Macías Garcia C. Sexually selected sexual selection: Can evolutionary retribution explain female ornamental colour? J Evol Biol 2019; 32:833-843. [PMID: 31070826 DOI: 10.1111/jeb.13485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 05/05/2019] [Indexed: 12/01/2022]
Abstract
By preferring mates with increasingly costly ornaments or courtship displays, females cause an escalation of male reproductive costs. Such increased costs should promote male selectivity based on fecundity-linked female attributes, leading to female ornamentation in species with traditional sex roles. Consequently, female ornamentation should evolve more frequently in taxa where male reproduction is costly than in comparable taxa where it is cheaper. We assessed the prevalence of female ornamental colouration in two clades of viviparous cyprinodontid fish: the Goodeinae, where stringent female choice imposes male mating costs, and the Poeciliinae, whose males can circumvent female mate choice. We found that although in the Poeciliinae female ornamental colour is a correlated, but paler version of male coloration, females of the Goodeinae often display vivid ornamental colours that are distinct from those of males. Thus, male and female ornaments are not (phylo)genetically correlated in the Goodeinae. Furthermore, phylogenetic signal on male and female colour is clearly detectable in the Poeciliinae, but absent in the Goodeinae, suggesting that ornamental colour of males and females in the latter may be the consequence of selection. Given that enforceable female choice has promoted male ornaments, we propose that evolutionary retribution has promoted distinct female ornaments in the Goodeinae.
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Affiliation(s)
- Marcela Méndez-Janovitz
- Instituto de Ecología, Universidad Nacional Autónoma de México, México City, México.,Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, México City, México
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Cally JG, Stuart-Fox D, Holman L. Meta-analytic evidence that sexual selection improves population fitness. Nat Commun 2019; 10:2017. [PMID: 31043615 PMCID: PMC6494874 DOI: 10.1038/s41467-019-10074-7] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 04/16/2019] [Indexed: 01/12/2023] Open
Abstract
Sexual selection has manifold ecological and evolutionary consequences, making its net effect on population fitness difficult to predict. A powerful empirical test is to experimentally manipulate sexual selection and then determine how population fitness evolves. Here, we synthesise 459 effect sizes from 65 experimental evolution studies using meta-analysis. We find that sexual selection on males tends to elevate the mean and reduce the variance for many fitness traits, especially in females and in populations evolving under stressful conditions. Sexual selection had weaker effects on direct measures of population fitness such as extinction rate and proportion of viable offspring, relative to traits that are less closely linked to population fitness. Overall, we conclude that the beneficial population-level consequences of sexual selection typically outweigh the harmful ones and that the effects of sexual selection can differ between sexes and environments. We discuss the implications of these results for conservation and evolutionary biology. Sexual selection has the potential to either increase or decrease absolute fitness. Here, Cally et al. perform a meta-analysis of 65 experimental evolution studies and find that sexual selection on males tends to increase fitness, especially in females evolving under stressful conditions.
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Affiliation(s)
- Justin G Cally
- School of BioSciences, The University of Melbourne, Parkville, VIC, 3052, Australia.
| | - Devi Stuart-Fox
- School of BioSciences, The University of Melbourne, Parkville, VIC, 3052, Australia
| | - Luke Holman
- School of BioSciences, The University of Melbourne, Parkville, VIC, 3052, Australia
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10
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Candolin U. Mate choice in a changing world. Biol Rev Camb Philos Soc 2019; 94:1246-1260. [PMID: 30762277 DOI: 10.1111/brv.12501] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 01/07/2023]
Abstract
Human activities by altering environmental conditions are influencing the mate choice of animals. This is by impacts on: (i) the production and expression of traits evaluated by mate choosers; (ii) the transmission of information about potential mates to choosers; (iii) the reception and processing of the information by choosers; and (iv) the final mate choice. Here, I first discuss how these four stages of the mate-choice process can be altered by environmental change, and how these alterations, in turn, can influence individuals, populations, and communities. Much evidence exists for human-induced environmental changes influencing mate choice, but the consequences for the fitness of courters and choosers are less well known, and even less is known about the impact on population dynamics, species interactions and community composition. More evidence exists for altered mate-choice systems influencing interspecific matings and thereby community composition and biodiversity. I then consider whether plastic adjustments and evolutionary changes can rescue adaptive mate-choice systems, and reflect on the possibility of non-adaptive mate-choice systems becoming less maladaptive under environmental change. Much evidence exists for plastic adjustments of mate-choice systems, but whether these are adaptive is seldom known, as is the contribution of genetic changes. Finally, I contemplate the possibility of mate-choice systems rescuing populations from decline in changing environments. I explain how this is context dependent with both positive and negative outcomes possible. In summary, while much evidence exists for human-induced environmental changes influencing mate-choice systems, less is known about the consequences for ecological and evolutionary processes. Considering the importance that mate choice plays in determining individual fitness and population viability, the effects of environmental change on mate-choice systems should be considered in studies on the ecological and evolutionary consequences of human disturbances to habitats.
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Affiliation(s)
- Ulrika Candolin
- Organismal and Evolutionary Biology, University of Helsinki, P.O. Box 65, FI-00014 Helsinki, Finland
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11
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Gore AC, Holley AM, Crews D. Mate choice, sexual selection, and endocrine-disrupting chemicals. Horm Behav 2018; 101:3-12. [PMID: 28888817 PMCID: PMC5845777 DOI: 10.1016/j.yhbeh.2017.09.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/26/2017] [Accepted: 09/05/2017] [Indexed: 12/30/2022]
Abstract
Humans have disproportionately affected the habitat and survival of species through environmental contamination. Important among these anthropogenic influences is the proliferation of organic chemicals, some of which perturb hormone systems, the latter referred to as endocrine-disrupting chemicals (EDCs). EDCs are widespread in the environment and affect all levels of reproduction, including development of reproductive organs, hormone release and regulation through the life cycle, the development of secondary sexual characteristics, and the maturation and maintenance of adult physiology and behavior. However, what is not well-known is how the confluence of EDC actions on the manifestation of morphological and behavioral sexual traits influences mate choice, a process that requires the reciprocal evaluation of and/or acceptance of a sexual partner. Moreover, the outcomes of EDC-induced perturbations are likely to influence sexual selection; yet this has rarely been directly tested. Here, we provide background on the development and manifestation of sexual traits, reproductive competence, and the neurobiology of sexual behavior, and evidence for their perturbation by EDCs. Selection acts on individuals, with the consequences manifest in populations, and we discuss the implications for EDC contamination of these processes, and the future of species.
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Affiliation(s)
- Andrea C Gore
- Division of Pharmacology and Toxicology, College of Pharmacy, USA.
| | - Amanda M Holley
- Division of Pharmacology and Toxicology, College of Pharmacy, USA; Department of Integrative Biology, College of Natural Sciences, USA
| | - David Crews
- Department of Integrative Biology, College of Natural Sciences, USA.
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Botha LM, Jones TM, Hopkins GR. Effects of lifetime exposure to artificial light at night on cricket (Teleogryllus commodus) courtship and mating behaviour. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.05.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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González-Tokman D, Martínez M I, Villalobos-Ávalos Y, Munguía-Steyer R, Ortiz-Zayas MDR, Cruz-Rosales M, Lumaret JP. Ivermectin alters reproductive success, body condition and sexual trait expression in dung beetles. CHEMOSPHERE 2017; 178:129-135. [PMID: 28324834 DOI: 10.1016/j.chemosphere.2017.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 02/22/2017] [Accepted: 03/03/2017] [Indexed: 05/26/2023]
Abstract
Ivermectin is a very common parasiticide used in livestock. It is excreted in the dung and has negative effects on survival and reproduction of dung-degrading organisms, including dung beetles. Here we exposed the dung beetle Euoniticellus intermedius to different concentrations of ivermectin in the food and evaluated reproductive success and the expression of traits associated with survival and reproduction under laboratory conditions. It is the first time the effects of ivermectin were evaluated on offspring physiological condition and the expression of a secondary sexual trait. We also registered the number of emerged beetles, sex ratio and body size of emerged adult beetles. Besides reducing the number of emerged beetles and body size, as found in the same and other insects, ivermectin at high doses reduced muscle mass while at intermediate doses it increased lipid mass. Ivermectin changed offspring sex ratio and at high doses increased the size of male horn, which is an important trait defining the male mating success. Our results highlight the importance of regulating parasiticide usage in livestock in order to maintain ecosystem services provided by dung beetles and confirm that contaminants impose new environmental conditions that not only impact on wild animal survival, but also on evolutionary processes such as sexual selection.
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Affiliation(s)
- Daniel González-Tokman
- CONACYT, Mexico; Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91070, Mexico.
| | - Imelda Martínez M
- Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91070, Mexico
| | - Yesenia Villalobos-Ávalos
- Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91070, Mexico
| | - Roberto Munguía-Steyer
- Unidad de Morfología y Función, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios 1, Los Reyes de Iztacala, 54090, Tlalnepantla, Estado de México, Mexico
| | | | - Magdalena Cruz-Rosales
- Instituto de Ecología, A. C. Carretera Antigua a Coatepec 351, El Haya, Xalapa, Veracruz 91070, Mexico
| | - Jean-Pierre Lumaret
- UMR 5175 CEFE, CNRS-Université de Montpellier, Laboratoire de Zoogéographie, Université Paul-Valéry Montpellier 3, Route de Mende, 34199 Montpellier Cedex 5, France
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14
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Halfwerk W, Slabbekoorn H. Pollution going multimodal: the complex impact of the human-altered sensory environment on animal perception and performance. Biol Lett 2016; 11:20141051. [PMID: 25904319 DOI: 10.1098/rsbl.2014.1051] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Anthropogenic sensory pollution is affecting ecosystems worldwide. Human actions generate acoustic noise, emanate artificial light and emit chemical substances. All of these pollutants are known to affect animals. Most studies on anthropogenic pollution address the impact of pollutants in unimodal sensory domains. High levels of anthropogenic noise, for example, have been shown to interfere with acoustic signals and cues. However, animals rely on multiple senses, and pollutants often co-occur. Thus, a full ecological assessment of the impact of anthropogenic activities requires a multimodal approach. We describe how sensory pollutants can co-occur and how covariance among pollutants may differ from natural situations. We review how animals combine information that arrives at their sensory systems through different modalities and outline how sensory conditions can interfere with multimodal perception. Finally, we describe how sensory pollutants can affect the perception, behaviour and endocrinology of animals within and across sensory modalities. We conclude that sensory pollution can affect animals in complex ways due to interactions among sensory stimuli, neural processing and behavioural and endocrinal feedback. We call for more empirical data on covariance among sensory conditions, for instance, data on correlated levels in noise and light pollution. Furthermore, we encourage researchers to test animal responses to a full-factorial set of sensory pollutants in the presence or the absence of ecologically important signals and cues. We realize that such approach is often time and energy consuming, but we think this is the only way to fully understand the multimodal impact of sensory pollution on animal performance and perception.
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Affiliation(s)
- Wouter Halfwerk
- Smithsonian Tropical Research Institute, Apartado 0843-03092 Balboa, Ancón, Panama Section of Integrative Biology, University of Texas, Austin, TX 78712, USA Institute of Biology, Leiden University, 2300 Leiden, The Netherlands
| | - Hans Slabbekoorn
- Institute of Biology, Leiden University, 2300 Leiden, The Netherlands
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15
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Lifshitz N, St Clair CC. Coloured ornamental traits could be effective and non-invasive indicators of pollution exposure for wildlife. CONSERVATION PHYSIOLOGY 2016; 4:cow028. [PMID: 27766151 PMCID: PMC5069843 DOI: 10.1093/conphys/cow028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 06/09/2016] [Accepted: 06/22/2016] [Indexed: 05/21/2023]
Abstract
Growth in human populations causes habitat degradation for other species, which is usually gauged by physical changes to landscapes. Corresponding habitat degradation to air and water is also common, but its effects on individuals can be difficult to detect until they result in the decline or disappearance of populations. More proactive measures of pollution usually combine abiotic samples of soil, water or air with invasive sampling of expendable species, but this approach sometimes creates ethical dilemmas and has limited application for threatened species. Here, we describe the potential to measure the effects of pollution on many species of birds and fish by using ornamental traits that are expressed as coloured skin, feathers and scales. As products of sexual selection, these traits are sensitive to environmental conditions, thereby providing honest information about the condition of their bearers as ready-made biomarkers. We review the documented effects of several classes of pollutants, including pharmaceuticals, pesticides, industry-related compounds and metals, on two classes of colour pigments, namely melanins and carotenoids. We find that several pollutants impede the expression of both carotenoids and brown melanin, while enhancing traits coloured by black melanin. We also review some of the current limitations of using ornamental colour as an indicator of pollution exposure, suggest avenues for future research and speculate about how advances in robotics and remote imagery will soon make it possible to measure these traits remotely and in a non-invasive manner. Wider awareness of this potential by conservation managers could foster the development of suitable model species and comparative metrics and lay a foundation for pollution monitoring that is more generalizable and biologically relevant than existing standards.
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Affiliation(s)
- Natalia Lifshitz
- Corresponding author: Department of Biological Sciences, University of Alberta, Z-708, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9. Tel: +1 780 492 9685.
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16
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Morphological correlates of river velocity and reproductive development in an ornamented stream fish. Evol Ecol 2015. [DOI: 10.1007/s10682-015-9790-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Martínez Medina L, Macías Garcia C, Flores Urbina A, Manjarrez J, Moyaho A. Female vibration discourages male courtship behaviour in the Amarillo fish (Girardinichthys multiradiatus). Behav Processes 2013; 100:163-8. [DOI: 10.1016/j.beproc.2013.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 09/26/2013] [Indexed: 11/17/2022]
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18
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Lilienthal H, Heikkinen P, Andersson PL, Viluksela M. Sexually dimorphic behavior after developmental exposure to characterize endocrine-mediated effects of different non-dioxin-like PCBs in rats. Toxicology 2013; 311:52-60. [DOI: 10.1016/j.tox.2013.01.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 01/15/2013] [Accepted: 01/30/2013] [Indexed: 12/15/2022]
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19
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Secondi J, Lepetz V, Cossard G, Sourice S. Nitrate affects courting and breathing but not escape performance in adult newts. Behav Ecol Sociobiol 2013. [DOI: 10.1007/s00265-013-1583-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Blocker TD, Ophir AG. Cryptic confounding compounds: A brief consideration of the influences of anthropogenic contaminants on courtship and mating behavior. Acta Ethol 2013; 16:10.1007/s10211-012-0137-x. [PMID: 24244068 PMCID: PMC3827776 DOI: 10.1007/s10211-012-0137-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Contaminants, like pesticides, polychlorinated biphenyls (PCBs), dioxins and metals, are persistent and ubiquitous and are known to threaten the environment. Traditionally, scientists have considered the direct physiological risks that these contaminants pose. However, scientists have just begun to integrate ethology and toxicology to investigate the effects that contaminants have on behavior. This review considers the potential for contaminant effects on mating behavior. Here we assess the growing body of research concerning disruptions in sexual differentiation, courtship, sexual receptivity, arousal, and mating. We discuss the implications of these disruptions on conservation efforts and highlight the importance of recognizing the potential for environmental stressors to affect behavioral experimentation. More specifically, we consider the negative implications for anthropogenic contaminants to affect the immediate behavior of animals, and their potential to have cascading and/or long-term effects on the behavioral ecology and evolution of populations. Overall, we aim to raise awareness of the confounding influence that contaminants can have, and promote caution when interpreting results where the potential for cryptic affects are possible.
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Affiliation(s)
- Tomica D Blocker
- Department of Zoology, Oklahoma State University, Stillwater, OK 74078
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21
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Ward JL, Blum MJ. Exposure to an environmental estrogen breaks down sexual isolation between native and invasive species. Evol Appl 2012; 5:901-12. [PMID: 23346234 PMCID: PMC3552407 DOI: 10.1111/j.1752-4571.2012.00283.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 05/15/2012] [Indexed: 11/30/2022] Open
Abstract
Environmental change can increase the likelihood of interspecific hybridization by altering properties of mate recognition and discrimination between sympatric congeners. We examined how exposure to an environmentally widespread endocrine-disrupting chemical (EDC), bisphenol A (BPA), affected visual communication signals and behavioral isolation between an introduced freshwater fish and a native congener (genus: Cyprinella). Exposure to BPA induced changes in the expression of male secondary traits as well as male and female mate choice, leading to an overall reduction in prezygotic isolation between congeners. Changes in female mate discrimination were not tightly linked to changes in male phenotypic traits, suggesting that EDC exposure may alter female choice thresholds independently of the effects of exposure on males. These findings indicate that environmental exposure to EDCs can lead to population declines via the erosion of species boundaries and by promoting the establishment and spread of non-native species via hybridization.
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Affiliation(s)
- Jessica L Ward
- Department of Ecology and Evolutionary Biology, Tulane UniversityNew Orleans, LA, USA
- Department of Fisheries, Wildlife and Conservation Biology and Department of Ecology, Evolution and Behavior, University of MinnesotaSaint Paul, MN, USA
| | - Michael J Blum
- Department of Ecology and Evolutionary Biology, Tulane UniversityNew Orleans, LA, USA
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22
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Ornelas-García CP, Alda F, Díaz-Pardo E, Gutiérrez-Hernández A, Doadrio I. Genetic diversity shaped by historical and recent factors in the live-bearing twoline skiffia Neotoca bilineata. JOURNAL OF FISH BIOLOGY 2012; 81:1963-1984. [PMID: 23130693 DOI: 10.1111/j.1095-8649.2012.03456.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The endangered twoline skiffia Neotoca bilineata, a viviparous fish of the subfamily Goodeinae, endemic to central Mexico (inhabiting two basins, Cuitzeo and Lerma-Santiago) was evaluated using genetic and habitat information. The genetic variation of all remaining populations of the species was analysed using both mitochondrial and microsatellite markers and their habitat conditions were assessed using a water quality index (I(WQ)). An 80% local extinction was found across the distribution of N. bilineata. The species was found in three of the 16 historical localities plus one previously unreported site. Most areas inhabited by the remaining populations had I(WQ) scores unsuitable for the conservation of freshwater biodiversity. Populations showed low but significant genetic differentiation with both markers (mtDNA φ(ST) = 0.076, P < 0.001; microsatellite F(ST) = 0.314, P < 0.001). Borbollon, in the Cuitzeo Basin, showed the highest level of differentiation and was identified as a single genetic unit by Bayesian assignment methods. Rio Grande de Morelia and Salamanca populations showed the highest genetic diversity and also a high migration rate facilitated by an artificial channel that connected the two basins. Overall, high genetic diversity values were observed compared with other freshwater fishes (average N(a) = 16 alleles and loci and mean ±S.D. H(o) = 0.63 ± 0.10 and nucleotide diversity π = 0.006). This suggests that the observed genetic diversity has not diminished as rapidly as the species' habitat destruction. No evidence of correlation between habitat conditions and genetic diversity was found. The current pattern of genetic diversity may be the result of both historical factors and recent modifications of the hydrological system. The main threat to the species may be the rapid habitat deterioration and associated demographic stochasticity rather than genetic factors.
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Affiliation(s)
- C P Ornelas-García
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, Madrid, Spain.
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23
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Prokop ZM, Michalczyk Ł, Drobniak SM, Herdegen M, Radwan J. META-ANALYSIS SUGGESTS CHOOSY FEMALES GET SEXY SONS MORE THAN “GOOD GENES”. Evolution 2012; 66:2665-73. [DOI: 10.1111/j.1558-5646.2012.01654.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Shenoy K. Environmentally realistic exposure to the herbicide atrazine alters some sexually selected traits in male guppies. PLoS One 2012; 7:e30611. [PMID: 22312428 PMCID: PMC3270011 DOI: 10.1371/journal.pone.0030611] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 12/25/2011] [Indexed: 11/18/2022] Open
Abstract
Male mating signals, including ornaments and courtship displays, and other sexually selected traits, like male-male aggression, are largely controlled by sex hormones. Environmental pollutants, notably endocrine disrupting compounds, can interfere with the proper functioning of hormones, thereby impacting the expression of hormonally regulated traits. Atrazine, one of the most widely used herbicides, can alter sex hormone levels in exposed animals. I tested the effects of environmentally relevant atrazine exposures on mating signals and behaviors in male guppies, a sexually dimorphic freshwater fish. Prolonged atrazine exposure reduced the expression of two honest signals: the area of orange spots (ornaments) and the number of courtship displays performed. Atrazine exposure also reduced aggression towards competing males in the context of mate competition. In the wild, exposure levels vary among individuals because of differential distribution of the pollutants across habitats; hence, differently impacted males often compete for the same mates. Disrupted mating signals can reduce reproductive success as females avoid mating with perceptibly suboptimal males. Less aggressive males are at a competitive disadvantage and lose access to females. This study highlights the effects of atrazine on ecologically relevant mating signals and behaviors in exposed wildlife. Altered reproductive traits have important implications for population dynamics, evolutionary patterns, and conservation of wildlife species.
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Affiliation(s)
- Kausalya Shenoy
- Department of Biology, University of Kentucky, Lexington, Kentucky, United States of America.
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25
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Riesch R, Plath M, Schlupp I. Toxic hydrogen sulphide and dark caves: pronounced male life-history divergence among locally adapted Poecilia mexicana (Poeciliidae). J Evol Biol 2010; 24:596-606. [PMID: 21159007 DOI: 10.1111/j.1420-9101.2010.02194.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chronic environmental stress is known to induce evolutionary change. Here, we assessed male life-history trait divergence in the neotropical fish Poecilia mexicana from a system that has been described to undergo incipient ecological speciation in adjacent, but reproductively isolated toxic/nontoxic and surface/cave habitats. Examining both field-caught and common garden-reared specimens, we investigated the extent of differentiation and plasticity of life-history strategies employed by male P. mexicana. We found strong site-specific life-history divergence in traits such as fat content, standard length and gonadosomatic index. The majority of site-specific life-history differences were also expressed under common garden-rearing conditions. We propose that apparent conservatism of male life histories is the result of other (genetically based) changes in physiology and behaviour between populations. Together with the results from previous studies, this is strong evidence for local adaptation as a result of ecologically based divergent selection.
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Affiliation(s)
- R Riesch
- Department of Zoology, University of Oklahoma, Norman, OK, USA.
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26
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Partridge C, Boettcher A, Jones AG. Short-term exposure to a synthetic estrogen disrupts mating dynamics in a pipefish. Horm Behav 2010; 58:800-7. [PMID: 20708009 DOI: 10.1016/j.yhbeh.2010.08.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 08/04/2010] [Accepted: 08/06/2010] [Indexed: 11/22/2022]
Abstract
Sexual selection is responsible for the evolution of some of the most elaborate traits occurring in nature, many of which play a vital role in competition over access to mates and individual reproductive fitness. Because expression of these traits is typically regulated by sex-steroids there is a significant potential for their expression to be affected by the presence of certain pollutants, such as endocrine disrupting compounds. Endocrine disruptors have been shown to alter primary sexual traits and impact reproduction, but few studies have investigated how these compounds affect secondary sexual trait expression and how that may, in turn, impact mating dynamics. In this study we examine how short-term exposure to a synthetic estrogen impacts secondary sexual trait expression and mating dynamics in the Gulf pipefish, a species displaying sex-role reversal. Our results show that only 10days of exposure to 17α-ethinylestradiol results in adult male pipefish developing female-like secondary sexual traits. While these males are capable of reproduction, females discriminate against exposed males in mate choice trials. In natural populations, this type of discrimination would reduce male mating opportunities, thus potentially reducing their long-term reproductive success. Importantly, the effects of these compounds on mating dynamics and mating opportunity would not be observed using the current standard methods of assessing environmental contamination. However, disrupting these processes could have profound effects on the viability of exposed populations.
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Affiliation(s)
- Charlyn Partridge
- Department of Biology, Texas A&M Univ., 3258 TAMU, College Station, TX 77843, USA.
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27
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Shenoy K, Crowley PH. Endocrine disruption of male mating signals: ecological and evolutionary implications. Funct Ecol 2010. [DOI: 10.1111/j.1365-2435.2010.01787.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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28
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Oil pollution increases plasma antioxidants but reduces coloration in a seabird. Oecologia 2010; 163:875-84. [DOI: 10.1007/s00442-010-1677-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 05/24/2010] [Indexed: 10/19/2022]
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29
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Cothran RD, Greco RL, Relyea RA. No evidence that a common pesticide impairs female mate choice in a freshwater amphipod. ENVIRONMENTAL TOXICOLOGY 2010; 25:310-314. [PMID: 19434694 DOI: 10.1002/tox.20506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Sublethal concentrations of pesticides may drastically alter the evolutionary trajectories of populations by interfering with mating behaviors. We used a median lethal concentration (LC50) experiment to test the sensitivity of three amphipod (Hyalella sp.) classes (females, small males, and large males) to five concentrations [10.4, 1.52, 0.16, 0.05, none detected (ND) microg/L] of the most commonly applied pesticide (malathion) in the United States. We then tested the sensitivity of female mate choice to sublethal concentrations (0.55, 0.38, and 0.05 microg/L) of malathion using a dichotomous choice test. Mortality was relatively high at low concentrations for all three amphipod classes with LC50s ranging from 0.06 microg/L in females to 0.19 microg/L in small males. There was overlap in the 95% CI of these estimates across amphipod classes suggesting no class-specific differences in sensitivity to malathion. We found no evidence that malathion interferes with female choice in this species, suggesting that mating behavior may not always be a good indicator of sublethal pesticide contamination.
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Affiliation(s)
- Rickey D Cothran
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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30
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Sexual Conflict and Sexual Selection in the Goodeinae, a Clade of Viviparous Fish with Effective Female Mate Choice. ADVANCES IN THE STUDY OF BEHAVIOR 2010. [DOI: 10.1016/s0065-3454(10)42001-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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31
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Secondi J, Hinot E, Djalout Z, Sourice S, Jadas-Hécart A. Realistic nitrate concentration alters the expression of sexual traits and olfactory male attractiveness in newts. Funct Ecol 2009. [DOI: 10.1111/j.1365-2435.2009.01558.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Price AC, Weadick CJ, Shim J, Rodd FH. Pigments, Patterns, and Fish Behavior. Zebrafish 2008; 5:297-307. [DOI: 10.1089/zeb.2008.0551] [Citation(s) in RCA: 134] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Anna C. Price
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Cameron J. Weadick
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - Janet Shim
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
| | - F. Helen Rodd
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada
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