1
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Alfieri JM, Hingoranee R, Athrey GN, Blackmon H. Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes). J Hered 2024; 115:1-10. [PMID: 37769441 PMCID: PMC10838130 DOI: 10.1093/jhered/esad059] [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: 05/16/2023] [Revised: 09/15/2023] [Accepted: 09/26/2023] [Indexed: 09/30/2023] Open
Abstract
Some species are able to hybridize despite being exceptionally diverged. The causes of this variation in accumulation of reproductive isolation remain poorly understood, and domestication as an impetus or hindrance to reproductive isolation remains to be characterized. In this study, we investigated the role of divergence time, domestication, and mismatches in morphology, habitat, and clutch size among hybridizing species on reproductive isolation in the bird order Galliformes. We compiled and analyzed hybridization occurrences from literature and recorded measures of postzygotic reproductive isolation. We used a text-mining approach leveraging a historical aviculture magazine to quantify the degree of domestication across species. We obtained divergence time, morphology, habitat, and clutch size data from open sources. We found 123 species pairs (involving 77 species) with known offspring fertility (sterile, only males fertile, or both sexes fertile). We found that divergence time and clutch size were significant predictors of reproductive isolation (McFadden's Pseudo-R2 = 0.59), but not habitat or morphological mismatch. Perhaps most interesting, we found a significant relationship between domestication and reproductive compatibility after correcting for phylogeny, removing extreme values, and addressing potential biases (F1,74 = 5.43, R2 = 0.06, P-value = 0.02). We speculate that the genetic architecture and disruption in selective reproductive regimes associated with domestication may impact reproductive isolation, causing domesticated species to be more reproductively labile.
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Affiliation(s)
- James M Alfieri
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Poultry Science, Texas A&M University, College Station, TX, USA
- Department of Biology, Texas A&M University, College Station, TX, USA
| | - Reina Hingoranee
- Department of Epidemiology and Biostatistics, Texas A&M University, College Station, TX, USA
| | - Giridhar N Athrey
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Poultry Science, Texas A&M University, College Station, TX, USA
| | - Heath Blackmon
- Interdisciplinary Program in Ecology and Evolutionary Biology, Texas A&M University, College Station, TX, USA
- Department of Biology, Texas A&M University, College Station, TX, USA
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2
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Chen C, Byrd CC, Pfennig KS. Male toads change their aggregation behaviour when hybridization is favoured. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Harrison CM, Colbert J, Richter CJ, McDonald PJ, Trumbull LM, Ellsworth SA, Hogan MP, Rokyta DR, Margres MJ. Using Morphological, Genetic, and Venom Analyses to Present Current and Historic Evidence of Crotalus horridus x adamanteus Hybridization on Jekyll Island, Georgia. SOUTHEAST NAT 2022. [DOI: 10.1656/058.021.0209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Joseph Colbert
- Jekyll Island Authority Conservation Department, Jekyll Island, GA 31527
| | - Collin J. Richter
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602
| | - Preston J. McDonald
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620
| | - Lauren M. Trumbull
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620
| | - Schyler A. Ellsworth
- Department of Biological Sciences, Florida State University, Tallahassee, FL 33306
| | - Michael P. Hogan
- Department of Biological Sciences, Florida State University, Tallahassee, FL 33306
| | - Darin R. Rokyta
- Department of Biological Sciences, Florida State University, Tallahassee, FL 33306
| | - Mark J. Margres
- Department of Integrative Biology, University of South Florida, Tampa, FL 33620
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4
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Rocha RG, Gonçalves J, Tarroso P, Monterroso P, Godinho R. Multiple Lines of Ecological Evidence Support Ancient Contact Between the African Wild Dog and the Dhole. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.803822] [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] Open
Abstract
Genomic tools have greatly enhanced our ability to uncover ancient interspecific gene flow, including cases involving allopatric lineages and/or lineages that have gone extinct. Recently, a genomic analysis revealed the unexpected gene flow between the African wild dog (Lycaon pictus) and the dhole (Cuon alpinus). The two species have currently highly disjunct and patchy distributions in Africa and Asia, respectively, which are remnants of a much wider past distribution. Yet, no reported evidence of their past contact has ever been documented. By hindcasting the past potential distribution of both species during the Last Glacial Maximum and the Last Interglacial, validating paleoclimatic reconstructions with fossil evidence, quantifying the intersection of their bioclimatic niches, and assessing interspecific compatibility, we investigate the location and favorable conditions for such contact and its ecological validity. We were able to identify the Levant region in Eastern Mediterranean during the Last Interglacial as the most suitable spatio-ecological context for the co-occurrence of the two canids, and to provide evidence of a highly significant overlap of the African wild dog niche with the wider niche of the dhole. These results, combined with ecologic traits, including key compatibility features such as cooperative breeding and hunting, provide consistent support for the potential co-occurrence of both canids. We suggest that the ranges of these canids came into contact multiple times during periods resembling the Last Interglacial, eventually facilitating gene flow between the African wild dog and the dhole in their post-divergence history. Our results are highly supportive of the key role of the Levant region in providing connectivity between African and Eurasian faunas and provide further impetus to combine different tools and approaches in advancing the understanding of species evolutionary histories.
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5
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Cordonnier M, Kaufmann B, Simon L, Escarguel G, Mondy N. Discrimination of conspecifics from heterospecifics in a hybrid zone: Behavioral and chemical cues in ants. INSECT SCIENCE 2022; 29:276-288. [PMID: 33913250 DOI: 10.1111/1744-7917.12915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Species and nestmate recognition in social insects occurs mostly through cuticular hydrocarbons acting as chemical cues. These compounds generate a colony-specific odor profile depending on genetic and environmental factors. Species and nestmate recognition results in specific behavioral responses, regulating the level of aggression toward other individuals during an interaction. Although species discrimination and recognition cues have been poorly studied in the context of interspecific hybridization, such systems offer an opportunity to further investigate the influence of heritable and environmental factors on recognition. We explored the strength of discrimination in a hybrid zone between two ant species-Tetramorium immigrans and T. caespitum-by comparing cuticular hydrocarbon profiles and measuring intra- and interspecific worker aggression in both areas of sympatry and areas of allopatry among species. Species cuticular hydrocarbon profiles were well-differentiated and interspecific aggression was high, revealing highly discriminating species recognition cues. Hybrids' cuticular hydrocarbon profiles consisted of a mixture of the parental bouquets, but also exhibited hybrid-specific patterns. Behavioral assays showed that T. immigrans is as aggressive toward hybrids as toward heterospecifics. Finally, aggression between heterospecific workers was lower when interacting individuals came from areas of sympatry among species than from areas of allopatry. Taken as a whole, these findings paint a particularly complex picture of the recognition system in T. immigrans, T. caespitum, and their hybrids, and highlight that hybrid zones afford a still underexplored opportunity for investigating recognition mechanisms and discrimination between species.
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Affiliation(s)
- Marion Cordonnier
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Bernard Kaufmann
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Laurent Simon
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Gilles Escarguel
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
| | - Nathalie Mondy
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, F-69622, Villeurbanne, France
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6
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DNA barcoding in Dorcadionini (Coleoptera, Cerambycidae) uncovers mitochondrial-morphological discordance and the hybridogenic origin of several subspecies. ORG DIVERS EVOL 2021. [DOI: 10.1007/s13127-021-00531-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Pfennig KS. Biased Hybridization and Its Impact on Adaptive Introgression. Trends Ecol Evol 2021; 36:488-497. [PMID: 33752896 DOI: 10.1016/j.tree.2021.02.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023]
Abstract
Gene exchange between species can influence ecological and evolutionary processes ranging from population rescue to adaptive radiation. Genomic tools have provided new insights into the prevalence and nature of gene exchange between species. However, much remains unknown of how ecological, behavioral, and evolutionary factors determine what genetic variation moves between species in the first place. In particular, more research is needed that evaluates whether such factors bias gene flow from one species to another, and whether any such biases affect how genetic variation from another species is ultimately retained in the genome of a given species. Addressing this issue is crucial in a changing world where hybridization and introgression might determine which species succeed and which become extinct.
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Affiliation(s)
- Karin S Pfennig
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599-3280, USA.
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8
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Sato Y, Alba JM. Reproductive interference and sensitivity to female pheromones in males and females of two herbivorous mite species. EXPERIMENTAL & APPLIED ACAROLOGY 2020; 81:59-74. [PMID: 32307618 PMCID: PMC7203586 DOI: 10.1007/s10493-020-00492-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
Competitive interaction between sister species can be affected by reproductive interference (RI) depending on the ability of males to discriminate conspecific from heterospecific mates. We study such interactions in Tetranychus evansi and T. urticae. These spider mites co-occur on solanaceous plants in Southern Europe, and cause important yield losses in tomato crops. Previous studies using Spanish populations found that T. evansi outcompetes T. urticae, and that this is due to unidirectional RI of T. evansi males with T. urticae females. The unidirectional RI is attributed to differences in male mate preference for conspecific females between the two species. Also, differences in the propensity of interspecific web sharing in females plays a role. To investigate proximate mechanisms of this RI, here we study the role of female pheromones on male mate preference and female web sharing. We extracted pheromones from females of the two species, and investigated if males and females were arrested by the pheromone extractions in various concentrations. We observed that T. urticae males were more sensitive to the pheromone extractions and able to discriminate conspecific from heterospecific ones. Tetranychus evansi males, on the other hand, were less sensitive. Females from both species were arrested by conspecific pheromone extraction in lower concentrations. In conclusion, heterospecific mating by T. evansi males, which results in RI, can be explained by their lack of discrimination between female pheromones of the two species. Differences in the propensity of interspecific web sharing in females might not be explained by the pheromones that we investigated.
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Affiliation(s)
- Yukie Sato
- Mountain Science Center, Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan.
- Evolutionary and Population Biology-IBED, University of Amsterdam, P.O. Box 94240, 1090GE, Amsterdam, The Netherlands.
| | - Juan M Alba
- Evolutionary and Population Biology-IBED, University of Amsterdam, P.O. Box 94240, 1090GE, Amsterdam, The Netherlands
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9
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Apolinario C, Silveira LF. Hybridism between Cyanocorax chrysops and Cyanocorax cyanopogon (Aves: Corvidae) in Brazil. ZOOLOGIA 2019. [DOI: 10.3897/zoologia.36.e32138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Cyanocorax chrysops(Vieillot, 1818) andCyanocorax cyanopogon(Wied, 1821) are widespread jays. They are considered sister species according to recent molecular phylogenies. When analyzing museum specimens of both species, we found two individuals with intermediate plumage characteristics. They were collected near the range limits of both species, and we classified them as hybrids. Based on the sites where these specimens were found, we discuss the possible factors leading the interbreeding and compare our findings with information available in the literature. This is the first documented case of natural hybridization in jays in Brazil and the second case involving sister species within the New World jays.
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10
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Cerveira AM, Soares JA, Bastos-Silveira C, Mathias MDL. Reproductive isolation between sister species of Iberian pine voles, Microtus duodecimcostatus and M. lusitanicus. ETHOL ECOL EVOL 2018. [DOI: 10.1080/03949370.2018.1508075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ana M. Cerveira
- CESAM ― Centre for Environmental and Marine Studies, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Joana A. Soares
- CESAM ― Centre for Environmental and Marine Studies, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Cristiane Bastos-Silveira
- Museu Nacional de História Natural e da Ciência, Departamento de Zoologia e Antropologia, Universidade de Lisboa, Rua da Escola Politécnica 58, 1250-102 Lisboa, Portugal
| | - Maria da Luz Mathias
- CESAM ― Centre for Environmental and Marine Studies, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
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11
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Detwiler KM. Mitochondrial DNA Analyses of Cercopithecus Monkeys Reveal a Localized Hybrid Origin for C. mitis doggetti in Gombe National Park, Tanzania. INT J PRIMATOL 2018. [DOI: 10.1007/s10764-018-0029-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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12
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Frynta D, Jančúchová-Lásková J, Frýdlová P, Landová E. A comparative study of growth: different body weight trajectories in three species of the genus Eublepharis and their hybrids. Sci Rep 2018; 8:2658. [PMID: 29422546 PMCID: PMC5805741 DOI: 10.1038/s41598-018-19864-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/09/2018] [Indexed: 02/03/2023] Open
Abstract
An extensive research effort is devoted to the evolution of life-histories and processes underlying the variation in adult body weight; however, in this regard, some animal taxa remain neglected. Here we report rates and timing of growth recorded in two wild-derived populations of a model lizard species, Eublepharis macularius (M, W), other two related species, i.e., E. angramainyu (A) and E. sp. (D), and their between-species hybrids. We detected clear differences among the examined species/populations, which can be interpreted in the terms of "fast - slow" continuum of life-history strategies. The mean asymptotic body size was the highest in A and further decreased in the following order: M, W, and D. In contrast, the growth rate showed an opposite pattern. Counter-intuitively, the largest species exhibited the slowest growth rates. The final body size was determined mainly by the inflexion point. This parameter reflecting the duration of exponential growth increased with mean asymptotic body size and easily overcompensated the effect of decreasing growth rates in larger species. Compared to the parental species, the F1 and backcross hybrids exhibited intermediate values of growth parameters. Thus, except for the case of the F2 hybrid of MxA, we failed to detect deleterious effects of hybridization in these animals with temperature sex determination.
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Affiliation(s)
- Daniel Frynta
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-12844, Prague 2, Czech Republic
| | - Jitka Jančúchová-Lásková
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-12844, Prague 2, Czech Republic
| | - Petra Frýdlová
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-12844, Prague 2, Czech Republic.
| | - Eva Landová
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ-12844, Prague 2, Czech Republic
- National Institute of Mental Health, Topolová 748, CZ-25067, Klecany, Czech Republic
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13
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Lipshutz SE. Interspecific competition, hybridization, and reproductive isolation in secondary contact: missing perspectives on males and females. Curr Zool 2018; 64:75-88. [PMID: 29492041 PMCID: PMC5809030 DOI: 10.1093/cz/zox060] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Accepted: 10/15/2017] [Indexed: 12/26/2022] Open
Abstract
Research on sexual selection and hybridization has focused on female mate choice and male-male competition. While the evolutionary outcomes of interspecific female preference have been well explored, we are now gaining a better understanding of the processes by which male-male competition between species in secondary contact promotes reproductive isolation versus hybridization. What is relatively unexplored is the interaction between female choice and male competition, as they can oppose one another or align with similar outcomes for reproductive isolation. The role of female-female competition in hybridization is also not well understood, but could operate similarly to male-male competition in polyandrous and other systems where costs to heterospecific mating are low for females. Reproductive competition between either sex of sympatric species can cause the divergence and/or convergence of sexual signals and recognition, which in turn influences the likelihood for interspecific mating. Future work on species interactions in secondary contact should test the relative influences of both mate choice and competition for mates on hybridization outcomes, and should not ignore the possibilities that females can compete over mating resources, and males can exercise mate choice.
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Affiliation(s)
- Sara E Lipshutz
- Department of Ecology and Evolutionary Biology, Division of Biology, University of Tennessee, Knoxville, Tennessee 37996, USA
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14
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Peters KJ, Myers SA, Dudaniec RY, O'Connor JA, Kleindorfer S. Females drive asymmetrical introgression from rare to common species in Darwin's tree finches. J Evol Biol 2017; 30:1940-1952. [PMID: 28833876 DOI: 10.1111/jeb.13167] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 08/15/2017] [Indexed: 01/06/2023]
Abstract
The consequences of hybridization for biodiversity depend on the specific ecological and evolutionary context in which it occurs. Understanding patterns of gene flow among hybridizing species is crucial for determining the evolutionary trajectories of species assemblages. The recently discovered hybridization between two species of Darwin's tree finches (Camarhynchus parvulus and C. pauper) on Floreana Island, Galápagos, presents an exciting opportunity to investigate the mechanisms causing hybridization and its potential evolutionary consequences under conditions of recent habitat disturbance and the introduction of invasive pathogens. In this study, we combine morphological and genetic analysis with pairing observations to explore the extent, direction and drivers of hybridization and to test whether hybridization patterns are a result of asymmetrical pairing preference driven by females of the rarer species (C. pauper). We found asymmetrical introgression from the critically endangered, larger-bodied C. pauper to the common, smaller-bodied C. parvulus, which was associated with a lack of selection against heterospecific males by C. pauper females. Examination of pairing data showed that C. parvulus females paired assortatively, whereas C. pauper females showed no such pattern. This study shows how sex-specific drivers can determine the direction of gene flow in hybridizing species. Furthermore, our results suggest the existence of a hybrid swarm comprised of C. parvulus and hybrid birds. We discuss the influence of interspecific abundance differences and susceptibility to the invasive parasite Philornis downsi on the observed hybridization and recommend that the conservation of this iconic species group should be managed jointly rather than species-specific.
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Affiliation(s)
- K J Peters
- School of Biological Sciences, Flinders University, Adelaide, SA, Australia
| | - S A Myers
- Southern Seas Ecology Laboratory, School of Earth and Environmental Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - R Y Dudaniec
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | - J A O'Connor
- Department of Environment, Water and Natural Resources, Adelaide, SA, Australia
| | - S Kleindorfer
- School of Biological Sciences, Flinders University, Adelaide, SA, Australia
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15
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Grether GF, Peiman KS, Tobias JA, Robinson BW. Causes and Consequences of Behavioral Interference between Species. Trends Ecol Evol 2017; 32:760-772. [PMID: 28797610 DOI: 10.1016/j.tree.2017.07.004] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/10/2017] [Accepted: 07/18/2017] [Indexed: 11/18/2022]
Abstract
Behavioral interference between species, such as territorial aggression, courtship, and mating, is widespread in animals. While aggressive and reproductive forms of interspecific interference have generally been studied separately, their many parallels and connections warrant a unified conceptual approach. Substantial evidence exists that aggressive and reproductive interference have pervasive effects on species coexistence, range limits, and evolutionary processes, including divergent and convergent forms of character displacement. Alien species invasions and climate change-induced range shifts result in novel interspecific interactions, heightening the importance of predicting the consequences of species interactions, and behavioral interference is a fundamental but neglected part of the equation. Here, we outline priorities for further theoretical and empirical research on the ecological and evolutionary consequences of behavioral interference.
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Affiliation(s)
- Gregory F Grether
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, CA 90095, USA.
| | - Kathryn S Peiman
- Department of Biology, Carleton University, Ottawa, ONT, K1S 5B6, Canada
| | - Joseph A Tobias
- Department of Life Sciences, Imperial College London, Silwood Park, Buckhurst Road, Ascot, SL5 7PY, UK
| | - Beren W Robinson
- Department of Integrative Biology, University of Guelph, ONT, N1G 2W1, Canada
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16
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Jarvis WMC, Comeau SM, Colborne SF, Robinson BW. Flexible mate choice may contribute to ecotype assortative mating in pumpkinseed sunfish (Lepomis gibbosus). J Evol Biol 2017; 30:1810-1820. [PMID: 28590579 DOI: 10.1111/jeb.13127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 06/01/2017] [Indexed: 11/30/2022]
Abstract
Gene flow is expected to limit adaptive divergence, but the ecological and behavioural factors that govern gene flow are still poorly understood, particularly at the earliest stages of population divergence. Reduced gene flow through mate choice (sexual isolation) can evolve even under conditions of subtle population divergence if intermediate phenotypes have reduced fitness. We indirectly tested the hypothesis that mate choice has evolved between coexisting littoral and pelagic ecotypes of polyphenic pumpkinseed sunfish (Lepomis gibbosus) that have diverged in morphology and resource use and where intermediate phenotypes have reduced performance. We assessed the ecotype of nesting males and females using stable isotope estimates of diet and a divergent male morphological trait, oral jaw width. We found positive assortative mating between ecotypes in a common spawning habitat along exposed lake shorelines, but contrary to expectations, assortative mating was variably expressed between two sampling years. Although the factors that influence variable assortative mating remain unclear, our results are consistent with mate choice being expressed by ecotypes. Despite being variably expressed, mate choice will reduce gene flow between ecotypes and could contribute to further adaptive divergence depending on its frequency and strength in the population. Our findings add to a growing body of evidence indicating mate choice behaviour can be a plastic trait, an idea that should be more explicitly considered in empirical studies of mate choice as well as conceptual frameworks of mate choice evolution and adaptive divergence.
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Affiliation(s)
- W M C Jarvis
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
| | - S M Comeau
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
| | - S F Colborne
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, Canada
| | - B W Robinson
- Department of Integrative Biology, University of Guelph, Guelph, ON, Canada
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17
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Vallinoto M, Cunha DB, Bessa-Silva A, Sodré D, Sequeira F. Deep divergence and hybridization among sympatric Neotropical toads. Zool J Linn Soc 2017. [DOI: 10.1093/zoolinnean/zlw001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Franco-Trecu V, Abud C, Feijoo M, Kloetzer G, Casacuberta M, Costa-Urrutia P. Sex beyond species: the first genetically analyzed case of intergeneric fertile hybridization in pinnipeds. Evol Dev 2016; 18:127-36. [PMID: 26994861 DOI: 10.1111/ede.12183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A species, according to the biological concept, is a natural group of potentially interbreeding individuals isolated by diverse mechanisms. Hybridization is considered the production of offspring resulting from the interbreeding of two genetically distinct taxa. It has been documented in over 10% of wild animals, and at least in 34 cases for Artic marine mammals. In Otariids, intergeneric hybridization has been reported though neither confirming it through genetic analyses nor presenting evidence of fertile offspring. In this study, we report the finding of a hybrid adult female between a South American fur seal (Arctocephalus australis) and a South American sea lion (Otaria byronia), and its offspring, a male pup, in Uruguay. Further based on morphological constraints and breeding seasons, sex-biased hybridization between the two species is hypothesized. Morphological and genetic (nuclear and mitochondrial) results confirm de hybrid nature of the female-pup pair. Here we discuss a genetic dilution effect, considering other hybridization events must be occurring, and how isolation mechanisms could be circumvented. Moreover, the results obtained from stable isotope analysis suggest feeding habits may be a trait transmitted maternally, leading to consider broader issues regarding hybridization as an evolutionary innovation phenomenon.
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Affiliation(s)
- Valentina Franco-Trecu
- Departamento de Ecología & Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Carolina Abud
- Departamento de Ecología & Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Matías Feijoo
- Departamento de Ecología & Evolución, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | | | | | - Paula Costa-Urrutia
- Facultad de Ciencias Marinas, Universidad Autónoma de Baja California, Km 103 carretera Tijuana-Ensenada, 22860 Ensenada Baja California, México.,Metric Genetic Laboratory, Sport City, Blvd Adolfo López Mateos 1181, San Pedro de Los Pinos, 01180 Ciudad de México, México
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Sato Y, Staudacher H, Sabelis MW. Why do males choose heterospecific females in the red spider mite? EXPERIMENTAL & APPLIED ACAROLOGY 2016; 68:21-31. [PMID: 26530994 DOI: 10.1007/s10493-015-9985-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 10/24/2015] [Indexed: 05/09/2023]
Abstract
In some species, males readily show courtship behaviour towards heterospecific females and even prefer them to females of their own species. This behaviour is generally explained by indiscriminate mating to acquire more mates, but may partly be explained by male mate preference mechanisms that have developed to choose among conspecific females, as male preference for larger females causes mating with larger heterospecific females. Recently, we found that males of the red spider mite, Tetranychus evansi collected from Spain (invasive population), prefer to mate with females of the two-spotted spider mite, T. urticae rather than with conspecific females. In spider mites, mate preference for non-kin individuals has been observed. Here, we investigated if T. evansi males collected from the area of its origin (Brazil) also show preference for heterospecific females. Secondly, we investigated if mate preference of T. evansi males for heterospecific females is affected by their relatedness to conspecific females which are offered together with heterospecific females. We found that mate preference for heterospecific females exists in Brazilian T. evansi, suggesting that the preference for heterospecific females is not a lack of evolved premating isolation with an allopatric species. We found that T. evansi males showed lower propensity to mate with heterospecific females when alternative females were non-kin in the two iso-female lines collected from Brazil. However, the effect of relatedness on male mate preference was not significant. We discuss alternative hypotheses explaining why T. evansi males prefer to mate with T. urticae females.
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Affiliation(s)
- Yukie Sato
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE, Amsterdam, The Netherlands.
- Sugadaira Montane Research Center, University of Tsukuba, Ueda, Nagano, 386-2204, Japan.
| | - Heike Staudacher
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE, Amsterdam, The Netherlands
| | - Maurice W Sabelis
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE, Amsterdam, The Netherlands
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Wyman MT, Locatelli Y, Charlton BD, Reby D. Female Sexual Preferences Toward Conspecific and Hybrid Male Mating Calls in Two Species of Polygynous Deer, Cervus elaphus and C. nippon. Evol Biol 2015; 43:227-241. [PMID: 27217596 PMCID: PMC4860407 DOI: 10.1007/s11692-015-9357-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 10/31/2015] [Indexed: 11/29/2022]
Abstract
The behavioral processes at the basis of hybridization and introgression are understudied in terrestrial mammals. We use a unique model to test the role of sexual signals as a reproductive barrier to introgression by investigating behavioral responses to male sexual calls in estrous females of two naturally allopatric but reproductively compatible deer species, red deer and sika deer. Previous studies demonstrated asymmetries in acoustic species discrimination between these species: most but not all female red deer prefer conspecific over sika deer male calls while female sika deer exhibit no preference differences. Here, we extend this examination of acoustic species discrimination to the role of male sexual calls in introgression between parent species and hybrids. Using two-speaker playback experiments, we compared the preference responses of estrous female red and sika deer to male sexual calls from conspecifics versus red × sika hybrids. These playbacks simulate early secondary contact between previously allopatric species after hybridization has occurred. Based on previous conspecific versus heterospecific playbacks, we predicted that most female red deer would prefer conspecific calls while female sika deer would show no difference in their preference behaviors toward conspecific and hybrid calls. However, results show that previous asymmetries did not persist as neither species exhibited more preferences for conspecific over hybrid calls. Thus, vocal behavior is not likely to deter introgression between these species during the early stages of sympatry. On a wider scale, weak discrimination against hybrid sexual signals could substantially contribute to this important evolutionary process in mammals and other taxa.
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Affiliation(s)
- Megan T. Wyman
- />Mammal Vocal Communication and Cognition Research, School of Psychology, University of Sussex, Falmer, BN1 9QH UK
- />Department of Wildlife, Fish and Conservation Biology, University of California, 1331 Academic Surge Building, One Shields Ave., Davis, CA 95616 USA
| | - Yann Locatelli
- />Muséum National d’Histoire Naturelle, Réserve de la Haute Touche, 36290 Obterre, France
| | - Benjamin D. Charlton
- />School of Biology and Environmental Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - David Reby
- />Mammal Vocal Communication and Cognition Research, School of Psychology, University of Sussex, Falmer, BN1 9QH UK
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Drury JP, Okamoto KW, Anderson CN, Grether GF. Reproductive interference explains persistence of aggression between species. Proc Biol Sci 2015; 282:20142256. [PMID: 25740887 DOI: 10.1098/rspb.2014.2256] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Interspecific territoriality occurs when individuals of different species fight over space, and may arise spontaneously when populations of closely related territorial species first come into contact. But defence of space is costly, and unless the benefits of excluding heterospecifics exceed the costs, natural selection should favour divergence in competitor recognition until the species no longer interact aggressively. Ordinarily males of different species do not compete for mates, but when males cannot distinguish females of sympatric species, females may effectively become a shared resource. We model how reproductive interference caused by undiscriminating males can prevent interspecific divergence, or even cause convergence, in traits used to recognize competitors. We then test the model in a genus of visually orienting insects and show that, as predicted by the model, differences between species pairs in the level of reproductive interference, which is causally related to species differences in female coloration, are strongly predictive of the current level of interspecific aggression. Interspecific reproductive interference is very common and we discuss how it may account for the persistence of interspecific aggression in many taxonomic groups.
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Affiliation(s)
- Jonathan P Drury
- Department of Ecology and Evolutionary Biology, University of California, 621 Charles E. Young Drive South, Los Angeles, CA 90095-1606, USA
| | - Kenichi W Okamoto
- Department of Entomology, North Carolina State University, Campus Box 7613, Raleigh, NC 27695-7613, USA
| | - Christopher N Anderson
- Department of Biological Sciences, Dominican University, 7900 West Division St., River Forest, IL 60305, USA
| | - Gregory F Grether
- Department of Ecology and Evolutionary Biology, University of California, 621 Charles E. Young Drive South, Los Angeles, CA 90095-1606, USA
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Drury JP, Anderson CN, Grether GF. Seasonal polyphenism in wing coloration affects species recognition in rubyspot damselflies (Hetaerina
spp.). J Evol Biol 2015; 28:1439-52. [PMID: 26033550 DOI: 10.1111/jeb.12665] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 05/21/2015] [Accepted: 05/25/2015] [Indexed: 11/28/2022]
Affiliation(s)
- J. P. Drury
- Department of Ecology and Evolutionary Biology; University of California; Los Angeles CA USA
| | | | - G. F. Grether
- Department of Ecology and Evolutionary Biology; University of California; Los Angeles CA USA
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