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Belcik JT, Ashley MV. Riverscape genetics of the orangethroat darter complex. JOURNAL OF FISH BIOLOGY 2024; 104:837-850. [PMID: 37971888 DOI: 10.1111/jfb.15619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/16/2023] [Accepted: 11/15/2023] [Indexed: 11/19/2023]
Abstract
Freshwater darters belonging to the orangethroat darter species complex, or Ceasia, are widely distributed in the Central and Southern United States, with ranges that span both glaciated and unglaciated regions. Up to 15 species have been recognized in the complex, with one, Etheostoma spectabile, having a widespread northern distribution and another, Etheostoma pulchellum, having a sizeable southern distribution. The other species in the complex have much more restricted distributions in unglaciated regions of the Central Highlands. We sampled 384 darters from 52 sites covering much of the range of Ceasia and evaluated patterns of genetic diversity, genetic structure, and pre- and post-glacial patterns of range contraction and expansion. We anticipated finding much stronger signals of genetic differentiation and diversification in unglaciated regions, given the higher species diversity and levels of endemism reported there. Surprisingly, microsatellite genotyping revealed two well-differentiated genetic clusters of E. spectabile in samples from glaciated regions, one confined to the Illinois River basin and another found in the Wabash drainage and Great Lakes tributaries. This suggests that there was expansion from two isolated glacial refugia, with little subsequent post-glacial gene flow. Fish collected from throughout the unglaciated region were less genetically differentiated. Fish assigned to Etheostoma burri and Etheostoma uniporum based on collection sites and morphological characters were not genetically differentiated from E. spectabile samples from the region. Hybridization and introgression occurring in the Central Highlands may confound genetic delineation of species in this region of high endemism and diversity.
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Affiliation(s)
- John T Belcik
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
- U.S. Army Corps of Engineers Chicago District, Chicago, Illinois, USA
| | - Mary V Ashley
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, USA
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2
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Million KM, Proffit MR, Reese SJ. Response to MHC-based olfactory cues in a mate choice context in two species of darter (Percidae: Etheostoma). Ecol Evol 2024; 14:e11025. [PMID: 38384826 PMCID: PMC10880076 DOI: 10.1002/ece3.11025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/01/2023] [Accepted: 12/02/2023] [Indexed: 02/23/2024] Open
Abstract
Mate choice is hypothesized to play an important role in maintaining high diversity at major histocompatibility complex (MHC) genes in vertebrates. Many studies have revealed that females across taxa prefer the scent of males with MHC genotypes different to their own. In this study we tested the "opposites-attract" hypothesis in two species of darter with known differences in female criteria used in mate choice: in the fantail darters (a paternal-care species), females prefer males with visual traits related to nest guarding and egg tending, while in rainbow darters (not a paternal-care species) female mate choice criteria are unknown. In dichotomous mate-choice trials, we presented females of both species with the scents of conspecific males with MHC class IIb genotypes that were either similar or dissimilar to that of the focal female. We evaluated the proportion of time each female spent with each male and calculated the average strength of female preference for both species. Female fantail darters demonstrated a preference for the scent of males with similar (rather than dissimilar) MHC genotypes, but this result was not statistically significant. Rainbow darter females showed no preference for the scent of males with similar or dissimilar MHC genotypes. Our results do not support the "opposites-attract" hypothesis in darters.
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Affiliation(s)
- Kara M. Million
- Department of BiologyIndiana UniversityBloomingtonIndianaUSA
| | - Melissa R. Proffit
- Department of BiologyIndiana UniversityBloomingtonIndianaUSA
- Present address:
Department of Ecology and Evolutionary BiologyUniversity of TennesseeKnoxvilleTennesseeUSA
| | - Sierra J. Reese
- Department of BiologyIndiana UniversityBloomingtonIndianaUSA
- Present address:
Department of BiologyUniversity of California, DavisDavisCaliforniaUSA
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3
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Arbour JH, Stanchak KE. The little fishes that could: smaller fishes demonstrate slow body size evolution but faster speciation in the family Percidae. Biol J Linn Soc Lond 2021. [DOI: 10.1093/biolinnean/blab125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Body size affects numerous aspects of organismal biology and many factors have been invoked to explain body size distributions in a macroecological and macroevolutionary context. Body size in the freshwater fish family Percidae is strongly right-skewed (i.e. dominated by small sizes), with small body size potentially being associated with fast water habitats. We constructed a new species-level, multi-locus, time-calibrated phylogeny of Percidae, and used it to test for changes in the rate and pattern of maximum body size evolution. We also tested whether speciation rates varied as a function of body size. We found that Etheostomatinae evolved towards a smaller adaptive optimum in body size compared to the other subfamilies of Percidae, and that this shift was associated with a reduction in the rate of body size evolution. Speciation rates were associated with body size across percids, showing a peak around small to medium body size. Small body size appears to partially, but not fully, explain the diversity of small percids, as many darters fall well below the “optimum” body size. Reinforcement of selection for small body size via selection for novel morphologies or via sexual selection may help to fully explain the remarkable diversity of darter radiation.
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Affiliation(s)
- Jessica H Arbour
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN 37132, USA
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4
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Mattson CL, Roberts NS, Mendelson TC. Male preference for conspecific females depends on male size in the splendid darter, Etheostoma barrenense. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.04.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Roberts NS, Mendelson TC. Reinforcement in the banded darter Etheostoma zonale: The effect of sex and sympatry on preferences. Ecol Evol 2020; 10:2499-2512. [PMID: 32184997 PMCID: PMC7069321 DOI: 10.1002/ece3.6076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/11/2019] [Accepted: 01/07/2020] [Indexed: 11/10/2022] Open
Abstract
Reinforcement occurs when selection against hybrid offspring strengthens behavioral isolation between parental species and may be an important factor in speciation. Theoretical models and experimental evidence indicate that both female and male preferences can be strengthened upon secondary contact via reinforcement. However, the question remains whether this process is more likely to affect the preferences of one sex or the other. Males of polygynous species are often predicted to exhibit weaker preferences than females, potentially limiting the ability for reinforcement to shape male preferences. Yet, in darters (Percidae: Etheostoma), male preference for conspecific mates appears to arise before female preferences during the early stages of allopatric speciation, and research suggests that male, but not female, preferences become reinforced upon secondary contact. In the current study, we aimed to determine whether the geographically widespread darter species Etheostoma zonale exhibits a signature of reinforcement, by comparing the strength of preference for conspecific mates between populations that are sympatric and allopatric with respect to a close congener, E. barrenense. We examined the strength of preference for conspecifics for males and females separately to determine whether the preferences of one or both sexes have been strengthened by reinforcement. Our results show that both sexes of E. zonale from sympatric populations exhibit stronger conspecific preferences than E. zonale from allopatric populations, but that female preferences appear to be more strongly reinforced than male preferences. Results therefore suggest that reinforcement of female preferences may promote behavioral isolation upon secondary contact, even in a genus that is characterized by pervasive male mate choice.
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Affiliation(s)
- Natalie S. Roberts
- Department of Biological SciencesUniversity of Maryland, Baltimore CountyBaltimoreMDUSA
| | - Tamra C. Mendelson
- Department of Biological SciencesUniversity of Maryland, Baltimore CountyBaltimoreMDUSA
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6
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Fondren A, Swierk L, Putman BJ. Clothing color mediates lizard responses to humans in a tropical forest. Biotropica 2019. [DOI: 10.1111/btp.12744] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Andrea Fondren
- College of Agriculture and Sciences Iowa State University Ames IA USA
| | - Lindsey Swierk
- Department of Biological Sciences Binghamton University State University of New York Binghamton NY USA
| | - Breanna J. Putman
- Department of Ecology and Evolutionary Biology University of California Los Angeles CA USA
- Section of Herpetology and Urban Nature Research Center Natural History Museum of Los Angeles County Los Angeles CA USA
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7
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Goldberg DL, Landy JA, Travis J, Springer MS, Reznick DN. In love and war: The morphometric and phylogenetic basis of ornamentation, and the evolution of male display behavior, in the livebearer genus
Poecilia. Evolution 2019; 73:360-377. [DOI: 10.1111/evo.13671] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/06/2018] [Accepted: 12/09/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel L. Goldberg
- Behavior, Ecology, Evolution, and Systematics Section, School of Biological Sciences Illinois State University Normal Illinois 61761
- Department of Biology University of California Riverside California 92521
| | - Joseph A. Landy
- Department of Biological Science Florida State University Tallahassee Florida 32306
| | - Joseph Travis
- Department of Biological Science Florida State University Tallahassee Florida 32306
| | - Mark S. Springer
- Department of Biology University of California Riverside California 92521
| | - David N. Reznick
- Department of Biology University of California Riverside California 92521
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8
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Moran RL, Zhou M, Catchen JM, Fuller RC. Hybridization and postzygotic isolation promote reinforcement of male mating preferences in a diverse group of fishes with traditional sex roles. Ecol Evol 2018; 8:9282-9294. [PMID: 30377500 PMCID: PMC6194240 DOI: 10.1002/ece3.4434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 02/05/2023] Open
Abstract
Behavioral isolation is thought to arise early in speciation due to differential sexual and/or natural selection favoring different preferences and traits in different lineages. Instead, behavioral isolation can arise due to reinforcement favoring traits and preferences that prevent maladaptive hybridization. In darters, female preference for male coloration has been hypothesized to drive speciation, because behavioral isolation evolves before F1 inviability. However, as with many long-lived organisms, the fitness of second-generation hybrids has not been assessed because raising animals to adulthood in the laboratory is challenging. Of late, reinforcement of male preferences has been implicated in darters because male preference for conspecific females is high in sympatry but absent in allopatry in multiple species pairs. The hypothesis that reinforcement accounts for behavioral isolation in sympatry assumes that hybridization and postzygotic isolation are present. Here, we used genomic and morphological data to demonstrate that hybridization is ongoing between orangethroat and rainbow darters and used hybrids collected from nature to measure postzygotic barriers across two hybrid generations. We observed sex ratio distortion in adult F1s and a dramatic reduction in backcross survival. Our findings indicate that selection to avoid hybridization promotes the evolution of male-driven behavioral isolation via reinforcement in this system.
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Affiliation(s)
- Rachel L. Moran
- Program in Ecology, Evolution, and Conservation BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
- Department of Animal BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
| | - Muchu Zhou
- Program in Ecology, Evolution, and Conservation BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
- Department of Animal BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
| | - Julian M. Catchen
- Program in Ecology, Evolution, and Conservation BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
- Department of Animal BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
| | - Rebecca C. Fuller
- Program in Ecology, Evolution, and Conservation BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
- Department of Animal BiologyUniversity of Illinois at Urbana‐ChampaignChampaignIllinois
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9
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Moran RL, Fuller RC. Agonistic character displacement of genetically based male colour patterns across darters. Proc Biol Sci 2018; 285:20181248. [PMID: 30068684 PMCID: PMC6111152 DOI: 10.1098/rspb.2018.1248] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/10/2018] [Indexed: 11/12/2022] Open
Abstract
Agonistic character displacement (ACD) occurs when selection to avoid maladaptive interspecific aggression leads to the evolution of agonistic signals and/or associated behavioural biases in sympatry. Here, we test for a pattern consistent with ACD in male colour pattern in darters (Percidae: Etheostoma). Male colour pattern has been shown to function in male-male competition rather than female mating preferences in several darter species. Additionally, males bias their aggression towards conspecific over heterospecific males in sympatry but not in allopatry, consistent with divergent ACD in male behavioural biases. We use a common garden approach to show that differences in male colour pattern among four closely related darter species are genetically based. Additionally, we demonstrate that some aspects of male colour pattern exhibit enhanced differences in sympatric compared to allopatric populations of two darter species, consistent with ACD. However, other male colour traits are more similar between species in sympatry compared with allopatry, indicating that not all signal components are under strong divergent selection in sympatry. This study provides evidence that interspecific male-male aggressive interactions alone can promote elaborate male signal evolution both between and within species. We discuss the implications this has for male-driven ACD and cascade ACD.
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Affiliation(s)
- Rachel L Moran
- Program in Ecology, Evolution, and Conservation Biology, Department of Animal Biology, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| | - Rebecca C Fuller
- Program in Ecology, Evolution, and Conservation Biology, Department of Animal Biology, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
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10
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Mitchem LD, Stanis S, Sutton NM, Turner Z, Fuller RC. The pervasive effects of lighting environments on sensory drive in bluefin killifish: an investigation into male/male competition, female choice, and predation. Curr Zool 2018; 64:499-512. [PMID: 30108631 PMCID: PMC6084612 DOI: 10.1093/cz/zoy038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/17/2018] [Indexed: 12/25/2022] Open
Abstract
Sensory drive predicts that the conditions under which signaling takes place have large effects on signals, sensory systems, and behavior. The coupling of an ecological genetics approach with sensory drive has been fruitful. An ecological genetics approach compares populations that experience different environments and asks whether population differences are adaptive and are the result of genetic and/or environmental variation. The multi-faceted effects of signaling environments are well-exemplified by the bluefin killifish. In this system, males with blue anal fins are abundant in tannin-stained swamps that lack UV/blue light but are absent in clear springs where UV/blue light is abundant. Past work indicates that lighting environments shape genetic and environmental variation in color patterns, visual systems, and behavior. Less is known about the selective forces creating the across population correlations between UV/blue light and the abundance of blue males. Here, we present three new experiments that investigate the roles of lighting environments on male competition, female mate choice, and predation. We found strong effects of lighting environments on male competition where blue males were more likely to emerge as dominant in tea-stained water than in clear water. Our preliminary study on predation indicated that blue males may be less susceptible to predation in tea-stained water than in clear water. However, there was little evidence for female preferences favoring blue males. The resulting pattern is one where the effects of lighting environments on genetic variation and phenotypic plasticity match the direction of selection and favor the expression of blue males in swamps.
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Affiliation(s)
- Lisa D Mitchem
- School of Integrative Biology, University of Illinois, Urbana, IL, USA
- Department of Biology, University of Virginia, Charlottesville, VA, USA
| | - Shannon Stanis
- School of Integrative Biology, University of Illinois, Urbana, IL, USA
| | - Nicholas M Sutton
- School of Integrative Biology, University of Illinois, Urbana, IL, USA
| | - Zachary Turner
- Department of Mathematics, University of Illinois, Urbana, IL, USA
| | - Rebecca C Fuller
- School of Integrative Biology, University of Illinois, Urbana, IL, USA
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11
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Moran RL, Fuller RC. Male-driven reproductive and agonistic character displacement in darters and its implications for speciation in allopatry. Curr Zool 2018; 64:101-113. [PMID: 29492043 PMCID: PMC5809036 DOI: 10.1093/cz/zox069] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/18/2017] [Indexed: 12/23/2022] Open
Abstract
Selection against hybridization can cause mating traits to diverge between species in sympatry via reproductive character displacement (RCD). Additionally, selection against interspecific fighting can cause aggressive traits to diverge between sympatric species via agonistic character displacement (ACD). By directly affecting conspecific recognition traits, RCD and ACD between species can also incidentally cause divergence in mating and fighting traits among populations within a species [termed cascade RCD (CRCD) and cascade ACD]. Here, we demonstrate patterns consistent with male-driven RCD and ACD in 2 groups of darters (orangethroat darter clade Ceasia and rainbow darter Etheostoma caeruleum). In both groups, males that occur in sympatry (between Ceasia and E. caeruleum) have higher levels of preference for mating and fighting with conspecifics over heterospecifics than do males from allopatry. This is consistent with RCD and ACD. We also found patterns consistent with CRCD and cascade ACD among species of Ceasia. Ceasia males that are sympatric to E. caeruleum (but allopatric to one another) also have heightened preferences for mating and fighting with conspecific versus heterospecific Ceasia. In contrast, Ceasia males that are allopatric to E. caeruleum readily mate and fight with heterospecific Ceasia. We suggest that RCD and ACD between Ceasia and E. caeruleum has incidentally led to divergence in mating and fighting traits among Ceasia species. This study is unique in that male preferences evolve via both RCD (male preference for conspecific females) and ACD (male preference to fight conspecific males) which leads to subsequent divergence among allopatric lineages.
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Affiliation(s)
- Rachel L Moran
- School of Integrative Biology, University of Illinois, Champaign, IL 61820, USA
| | - Rebecca C Fuller
- School of Integrative Biology, University of Illinois, Champaign, IL 61820, USA
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12
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Tinghitella RM, Lackey ACR, Martin M, Dijkstra PD, Drury JP, Heathcote R, Keagy J, Scordato ESC, Tyers AM. On the role of male competition in speciation: a review and research agenda. Behav Ecol 2017. [DOI: 10.1093/beheco/arx151] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
| | - Alycia C R Lackey
- Department of Biological Sciences, Watershed Studies Institute, Murray State University, Murray, KY, USA
| | - Michael Martin
- Department of Biology, Oxford College of Emory University, Oxford, GA, USA
| | - Peter D Dijkstra
- Department of Biology, Central Michigan University, Mount Pleasant, MI, USA
| | - Jonathan P Drury
- Department of Ecology & Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Robert Heathcote
- Centre for Research in Animal Behaviour, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Jason Keagy
- Department of Animal Biology, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Elizabeth S C Scordato
- Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, USA
| | - Alexandra M Tyers
- Molecular Ecology and Fisheries Genetics Laboratory, School of Biological Sciences, Bangor, Gwynedd,, Wales, UK
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13
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Moran RL, Zhou M, Catchen JM, Fuller RC. Male and female contributions to behavioral isolation in darters as a function of genetic distance and color distance. Evolution 2017; 71:2428-2444. [PMID: 28776645 PMCID: PMC5656840 DOI: 10.1111/evo.13321] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 01/15/2023]
Abstract
Determining which reproductive isolating barriers arise first between geographically isolated lineages is critical to understanding allopatric speciation. We examined behavioral isolation among four recently diverged allopatric species in the orangethroat darter clade (Etheostoma: Ceasia). We also examined behavioral isolation between each Ceasia species and the sympatric rainbow darter Etheostoma caeruleum. We asked (1) is behavioral isolation present between allopatric Ceasia species, and how does this compare to behavioral isolation with E. caeruleum, (2) does male color distance and/or genetic distance predict behavioral isolation between species, and (3) what are the relative contributions of female choice, male choice, and male competition to behavioral isolation? We found that behavioral isolation, genetic differentiation, and male color pattern differentiation were present between allopatric Ceasia species. Males, but not females, discerned between conspecific and heterospecific mates. Males also directed more aggression toward conspecific rival males. The high levels of behavioral isolation among Ceasia species showed no obvious pattern with genetic distance or male color distance. However, when the E. caeruleum was included in the analysis, an association between male aggression and male color distance was apparent. We discuss the possibility that reinforcement between Ceasia and E. caeruleum is driving behavioral isolation among allopatric Ceasia species.
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Affiliation(s)
- Rachel L Moran
- Department of Animal Biology, University of Illinois, Champaign, Illinois 61820.,Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Champaign, Illinois 61820
| | - Muchu Zhou
- Department of Animal Biology, University of Illinois, Champaign, Illinois 61820.,Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Champaign, Illinois 61820
| | - Julian M Catchen
- Department of Animal Biology, University of Illinois, Champaign, Illinois 61820.,Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Champaign, Illinois 61820
| | - Rebecca C Fuller
- Department of Animal Biology, University of Illinois, Champaign, Illinois 61820.,Program in Ecology, Evolution, and Conservation Biology, University of Illinois, Champaign, Illinois 61820
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14
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Roberts NS, Mendelson TC. Male mate choice contributes to behavioural isolation in sexually dimorphic fish with traditional sex roles. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2017.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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15
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Schuett W, Nava TF, Rahmlow N, Scherer U. Artificial Visible Implant Elastomer (VIE) tags of different colour and symmetry do not influence mate choice in a cichlid. BEHAVIOUR 2017. [DOI: 10.1163/1568539x-00003427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Experimental individuals are frequently marked with coloured tags for individual identification. Except for birds, the consequences of such artificial tagging on mate choice have been rarely investigated even though individuals often prefer naturally brightly coloured or symmetrically ornamented mates. We tested whether differently coloured Visible Implant Elastomer (VIE) tags influence female mate choice in rainbow kribs,Pelvicachromis pulcher. Females were allowed to simultaneously choose between a control and a VIE-marked male. The VIE-marked male carried two tags of the same colour (red, blue, green or white) set symmetrically or asymmetrically. Females did not show a preference for or avoidance of males carrying any of the colours compared to control males, no matter if the tags had been set symmetrically or asymmetrically. Although we found no discrimination for or against colour-tags, we highlight the importance of considering potential influences of colour-marks on mate choice in behavioural and evolutionary studies.
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Affiliation(s)
- Wiebke Schuett
- Zoological Institute, Biocenter Grindel, University of Hamburg, Martin-Luther King Platz 3, 20146 Hamburg, Germany
| | - Teresa Fee Nava
- Zoological Institute, Biocenter Grindel, University of Hamburg, Martin-Luther King Platz 3, 20146 Hamburg, Germany
| | - Neele Rahmlow
- Zoological Institute, Biocenter Grindel, University of Hamburg, Martin-Luther King Platz 3, 20146 Hamburg, Germany
| | - Ulrike Scherer
- Zoological Institute, Biocenter Grindel, University of Hamburg, Martin-Luther King Platz 3, 20146 Hamburg, Germany
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