1
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Bose APH, Dabernig-Heinz J, Oberkofler J, Koch L, Grimm J, Sefc KM, Jordan A. Aggression and spatial positioning of kin and non-kin fish in social groups. Behav Ecol 2023; 34:673-681. [PMID: 37434638 PMCID: PMC10332448 DOI: 10.1093/beheco/arad036] [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: 09/22/2022] [Revised: 04/01/2023] [Accepted: 04/19/2023] [Indexed: 07/13/2023] Open
Abstract
Group-living animals are faced with the challenge of sharing space and local resources amongst group members who may be either relatives or non-relatives. Individuals may reduce the inclusive fitness costs they incur from competing with relatives by either reducing their levels of aggression toward kin, or by maintaining physical separation between kin. In this field study, we used the group-living cichlid Neolamprologus multifasciatus to examine whether within-group aggression is reduced among group members that are kin, and whether kin occupy different regions of their group's territory to reduce kin competition over space and local resources. We determined the kinship relationships among cohabiting adults via microsatellite genotyping and then combined these with spatial and behavioral analyses of groups in the wild. We found that aggressive contests between group members declined in frequency with spatial separation between their shelters. Female kin did not engage in aggressive contests with one another, whereas non-kin females did, despite the fact these females lived at similar distances from one another on their groups' territories. Contests within male-male and male-female dyads did not clearly correlate with kinship. Non-kin male-male and male-female dyads lived at more variable distances from one another on their territories than their corresponding kin dyads. Together, our study indicates that contests among group members can be mediated by relatedness in a sex-dependent manner. We also suggest that spatial relationships can play an important role in determining the extent to which group members compete with one another.
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Affiliation(s)
- Aneesh P H Bose
- Department of Wildlife, Fish & Environmental Studies, Swedish University of Agricultural Sciences (SLU), Skogsmarksgränd, 90183, Umeå, Sweden
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Universitätsstraße 10, 78464, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
| | | | - Jan Oberkofler
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Universitätsstraße 10, 78464, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
| | - Lukas Koch
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Universitätsstraße 10, 78464, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
| | - Jacqueline Grimm
- Institute of Biology, University of Graz, Universitätsplatz 2, 8010, Graz, Austria
| | - Kristina M Sefc
- Institute of Biology, University of Graz, Universitätsplatz 2, 8010, Graz, Austria
| | - Alex Jordan
- Department of Collective Behaviour, Max Planck Institute of Animal Behavior, Universitätsstraße 10, 78464, Konstanz, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
- Department of Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
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2
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Baird RB, Mongue AJ, Ross L. Why put all your eggs in one basket? Evolutionary perspectives on the origins of monogenic reproduction. Heredity (Edinb) 2023:10.1038/s41437-023-00632-7. [PMID: 37328587 PMCID: PMC10382564 DOI: 10.1038/s41437-023-00632-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/18/2023] Open
Abstract
Sexual reproduction is ubiquitous in eukaryotes, but the mechanisms by which sex is determined are diverse and undergo rapid turnovers in short evolutionary timescales. Usually, an embryo's sex is fated at the moment of fertilisation, but in rare instances it is the maternal genotype that determines the offspring's sex. These systems are often characterised by mothers producing single-sex broods, a phenomenon known as monogeny. Monogenic reproduction is well documented in Hymenoptera (ants, bees and wasps), where it is associated with a eusocial lifestyle. However, it is also known to occur in three families in Diptera (true flies): Sciaridae, Cecidomyiidae and Calliphoridae. Here we review current knowledge of monogenic reproduction in these dipteran clades. We discuss how this strange reproductive strategy might evolve, and we consider the potential contributions of inbreeding, sex ratio distorters, and polygenic control of the sex ratio. Finally, we provide suggestions on future work to elucidate the origins of this unusual reproductive strategy. We propose that studying these systems will contribute to our understanding of the evolution and turnover of sex determination systems.
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Affiliation(s)
- Robert B Baird
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, EH9 3JT, UK.
| | - Andrew J Mongue
- Department of Entomology and Nematology, University of Florida, Gainesville, Florida, 32611, USA
| | - Laura Ross
- Institute of Ecology and Evolution, University of Edinburgh, Edinburgh, EH9 3JT, UK
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3
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Modi S, Mondol S, Ghaskadbi P, Nigam P, Habib B. Genetic evidence of differential dispersal pattern in the Asiatic wild dog: Comparing two populations with different pack sizes. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.993851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
IntroductionDispersal is a multi-causal, crucial life-history event in shaping the genetic and behavioral structure of mammals. We assessed the dispersal pattern of dholes aka Asiatic wild dog (Cuon alpinus), a social monogamous mammal at two tiger reserves of Maharashtra with different degrees of pack size and competition with tigers i.e. Tadoba-Andhari (TATR, smaller pack size, higher tiger density) and Nawegaon-Nagzira (NNTR, larger pack size, lower tiger density).MethodsWe used the microsatellite data of 174 individual genotypes (98 males and 67 females) to assess the dispersal pattern of dholes from two populations with varying pack size, tiger density, and landscape connectivity using gene flow as a proxy. We compared the population structure, pairwise F statistics, assignment index, and relatedness across a spatial scale.Results and discussionOverall, the results suggested a difference in sex-bias dispersal pattern for the two sub-populations, exhibiting significant results for female-biased dispersal in the TATR population with a smaller pack size and higher tiger density. Our study highlights the variability in sex-biased dispersal patterns in two different populations which could be the consequence of different variables such as pack size, tiger density, and geographical scale. The study warrants further quantitative investigation including several factors such as individual behavior, pack composition, pack size, tiger density, etc. In the present Anthropocene era, determining the sex bias in dispersal patterns for a short-range, pack-living carnivore will help in devising an effective conservation management plan for their long-term survival.
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4
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Parenting in the city: effects of urbanization on incubation behaviour and egg temperature in great tits, Parus major. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.09.004] [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]
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5
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Addis BR, Lowe WH. Environmentally associated variation in dispersal distance affects inbreeding risk in a stream salamander. Am Nat 2022; 200:802-814. [DOI: 10.1086/721763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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6
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Nomano FY, Matsui S, Senda M, Tsuchiya Y, Takagi M. Random mating and the lack of sex-biased kin clustering in an island population of the bull-headed shrike, Lanius bucephalus. ETHOL ECOL EVOL 2022. [DOI: 10.1080/03949370.2022.2069159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Fumiaki Y. Nomano
- Graduate School of Environmental Earth Science, Hokkaido University, Kita 10, Nishi 5, Kita-ku, Sapporo 060-0810, Japan
- Department of Evolutionary Studies of Biosystems, School of Advanced Sciences, Sokendai, The Graduate University for Advanced Studies, Hayama, Miura, Kanagawa 240-0193, Japan
| | - Shin Matsui
- Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Department of Biology, School of Biological Sciences, Tokai University, Minamisawa 5-1-1-1, Minami-ku Hokkaido, Sapporo 005-8601, Japan
| | - Mariko Senda
- Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Yamashina Institute for Ornithology, Konoyama 115, Abiko, Chiba 270-1145, Japan
| | - Yuko Tsuchiya
- Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Masaoki Takagi
- Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Department of Natural History Science, Graduate School of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
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7
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Fujii TG, Okanoya K. Auditory and sexual preferences for a father's song can co-emerge in female Bengalese finches. PLoS One 2022; 17:e0254302. [PMID: 35271565 PMCID: PMC8912213 DOI: 10.1371/journal.pone.0254302] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 02/16/2022] [Indexed: 01/25/2023] Open
Abstract
Birdsong is an important communication signal used in mate choice. In some songbird species, only the males produce songs. While the females of those species do not sing, they are sensitive to inter- and intra-species song variations, and the song preferences of females depend on their developmental experiences and/or genetic predispositions. For example, in Bengalese finches and zebra finches, adult females prefer the song to which they were exposed early in life, such as the father’s song. In the current study, we aimed to test whether the preference for the father’s song, as reported in previous Bengalese finch studies, can be interpreted as a mating preference. For this purpose, the subjects were raised exclusively with their family until they became sexually mature and then tested as adults. We measured copulation solicitation displays during playbacks of the father’s song vs. unfamiliar conspecific songs and found that across individuals, the father’s song elicited more displays than other songs. In addition, we analyzed if a bird’s response to a given song could be predicted by the level of similarity of that song to the father’s song. Although the birds expressed more displays to songs with greater similarity to the father’s song, the effect was not statistically significant. These results suggest that female Bengalese finches can develop a strong mating preference for the father’s song if they are exclusively exposed to the father’s song early in life. However, it is not clear if such a preference generalizes to other cases in which birds are exposed to multiple male songs during development. In order to fully elucidate the possible contribution of experience and genetic factors in the development of female song preference in this species, future studies will need more detailed manipulation and control of the rearing conditions, including cross-fostering.
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Affiliation(s)
- Tomoko G. Fujii
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan
| | - Kazuo Okanoya
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan
- Behavior and Cognition Joint Research Laboratory, RIKEN Center for Brain Science, Wako, Saitama, Japan
- * E-mail:
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8
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White EM, Perlut NG, Travis SE, Strong AM. Diverse demographic factors influence apparent juvenile survival in a migratory songbird. Ecosphere 2021. [DOI: 10.1002/ecs2.3761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Emma M. White
- School of Biological Sciences University of New England 11 Hills Beach Road Biddeford Maine 04005 USA
| | - Noah G. Perlut
- School of Marine and Environmental Programs University of New England 11 Hills Beach Road Biddeford Maine 04005 USA
| | - Steven E. Travis
- School of Biological Sciences University of New England 11 Hills Beach Road Biddeford Maine 04005 USA
| | - Allan M. Strong
- Rubenstein School of Environment and Natural Resources University of Vermont Burlington Vermont 05405 USA
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9
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Freedberg S, Urban C, Cunniff BM. Dispersal reduces interspecific competitiveness by spreading locally harmful traits. J Evol Biol 2021; 34:1477-1487. [PMID: 34378272 DOI: 10.1111/jeb.13912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 11/30/2022]
Abstract
Just as intraorganismal selection can produce "selfish" elements that lower individual fitness, selection at the organismal level can favour traits that reduce the fitness of conspecifics and potentially impact population survival. Because dispersal can affect how these traits are distributed within species, it may determine whether their negative consequences are restricted locally or spread throughout the species' range. We present an individual-based simulation model that explores the interaction between dispersal rate and traits that increase individual fecundity at the expense of conspecific fitness. We first modelled dispersal as a trait that varied within species and then fixed the within-species dispersal rates and modelled competition between species that differed only in dispersal rate. Reproductive isolation allowed species differences in dispersal rates to become associated with traits moulded by intraspecific competition, but this association did not occur when dispersal variation was distributed within species due to recombination between the dispersal and competition loci. Alleles that reduced the fitness of conspecifics were maintained at lower frequencies in low-dispersal species, resulting in a competitive advantage over high-dispersing species. Although high-dispersal species initially outcompeted low-dispersal species owing to enhanced colonization opportunities, low-dispersal species ultimately showed greater representation across a range of ecological and genetic scenarios. This process may shift the makeup of communities over time towards a greater representation of low-dispersal species.
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Affiliation(s)
| | - Caroline Urban
- Department of Biology, St. Olaf College, Northfield, MN, USA
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10
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Onley IR, Austin JJ, Mitchell KJ, Moseby KE. Understanding dispersal patterns can inform future translocation strategies: A case study of the threatened greater stick‐nest rat (
Leporillus conditor
). AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Isabelle R. Onley
- School of Biological Sciences Australian Centre for Ancient DNA (ACAD) University of Adelaide Adelaide South Australia 5005Australia
| | - Jeremy J. Austin
- School of Biological Sciences Australian Centre for Ancient DNA (ACAD) University of Adelaide Adelaide South Australia 5005Australia
| | - Kieren J. Mitchell
- School of Biological Sciences Australian Centre for Ancient DNA (ACAD) University of Adelaide Adelaide South Australia 5005Australia
- School of Biological Sciences ARC Centre of Excellence for Australian Biodiversity and Heritage (CABAH) University of Adelaide Adelaide South AustraliaAustralia
| | - Katherine E. Moseby
- Centre for Ecosystem Sciences, Earth and Environmental Sciences University of New South Wales Sydney New South Wales Australia
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11
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Irwin ET, Kikillus KH, Gray RS, Empson RA, Nelson NJ. Postfledging dispersal of red‐fronted parakeets (
Cyanoramphus novaezelandiae
) from a fenced mainland sanctuary. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Ellen T. Irwin
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand
| | - K. Heidy Kikillus
- Ministry for Primary Industries—Manatū Ahu Matua Wellington New Zealand
| | - Richard S. Gray
- Zealandia Centre for People and Nature Wellington New Zealand
| | | | - Nicola J. Nelson
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand
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12
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Luna Á, Lois NA, Rodríguez-Martinez S, Palma A, Sanz-Aguilar A, Tella JL, Carrete M. Urban life promotes delayed dispersal and family living in a non-social bird species. Sci Rep 2021; 11:107. [PMID: 33420201 PMCID: PMC7794495 DOI: 10.1038/s41598-020-80344-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 12/16/2020] [Indexed: 01/29/2023] Open
Abstract
In some vertebrate species, family units are typically formed when sexually mature individuals delay dispersal and independent breeding to remain as subordinates in a breeding group. This behaviour has been intensively studied in gregarious species but has also been described in non-social species where ecological and evolutionary drivers are less known. Here, we explore factors that favour delayed dispersal and family living and potential benefits associated with this strategy in a non-social, monogamous species (the burrowing owl, Athene cunicularia) occupying urban and rural habitats. Our results show that family units arise when first-year individuals, mainly males, delay their dispersal to stay in their natal nests with their parents. This delayed dispersal, while still uncommon, was more prevalent in urban (7%) than in rural (3%) habitats, and in areas with high conspecific density and productivity. Birds delaying dispersal contributed to the genetic pool of the offspring in 25% of the families analysed, but did not increase the productivity of the nests where they remained. However, their presence was related to an improvement in the body condition of chicks, which was ultimately linked to a slightly positive effect in offspring future survival probabilities. Finally, delayed dispersers were recruited as breeders in high-quality urban territories and closer to their natal nests than individuals dispersing during their first year of life. Thus, our results suggest that delaying dispersal may be mainly related to opportunities to inheriting a good quality territory, especially for males. Our study contributes to understanding the role played by habitat quality in promoting delayed dispersal and family living, not only in social but also non-social species, highlighting its impact in the ecology and evolution of animal populations.
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Affiliation(s)
- Álvaro Luna
- grid.418875.70000 0001 1091 6248Department of Conservation Biology, Estación Biológica de Doñana - CSIC, Sevilla, Spain
| | - Nicolás A. Lois
- grid.7345.50000 0001 0056 1981Laboratorio de Ecología y Comportamiento Animal. Departamento de Ecología, Genética y Evolución, Universidad de Buenos Aires, Buenos Aires, Argentina ,grid.423606.50000 0001 1945 2152Instituto de Ecología, Genética y Evolución de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Sol Rodríguez-Martinez
- grid.418875.70000 0001 1091 6248Department of Evolutionary Ecology, Estación Biológica de Doñana - CSIC, Sevilla, Spain
| | - Antonio Palma
- grid.418875.70000 0001 1091 6248Department of Conservation Biology, Estación Biológica de Doñana - CSIC, Sevilla, Spain
| | - Ana Sanz-Aguilar
- grid.466857.e0000 0000 8518 7126Animal Demography and Ecology Unit, IMEDEA (CSIC-UIB), Esporles, Spain ,grid.9563.90000 0001 1940 4767Applied Zoology and Conservation Group, University of Balearic Islands, Palma, Spain
| | - José L. Tella
- grid.418875.70000 0001 1091 6248Department of Conservation Biology, Estación Biológica de Doñana - CSIC, Sevilla, Spain
| | - Martina Carrete
- grid.15449.3d0000 0001 2200 2355Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Sevilla, Spain
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13
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Garg KM, Chattopadhyay B. Gene Flow in Volant Vertebrates: Species Biology, Ecology and Climate Change. J Indian Inst Sci 2021; 101:165-176. [PMID: 34155425 PMCID: PMC8207815 DOI: 10.1007/s41745-021-00239-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/05/2021] [Indexed: 02/06/2023]
Abstract
Gene flow, the exchange of genetic material between populations is an important biological process, which shapes and maintains biodiversity. The successful movement of individuals between populations depends on multiple factors determined by species biology and the environment. One of the most important factors regulating gene flow is the ability to move, and flight allows individuals to easily move across geographical barriers. Volant vertebrates are found on some of the remotest islands and contribute significantly to the biodiversity and ecosystem. The availability of next-generation sequencing data for non-model animals has substantially improved our understanding of gene flow and its consequences, allowing us to look at fine-scale patterns. However, most of our understanding regarding gene flow comes from the temperate regions and the Neotropics. The lack of studies from species-rich Asia is striking. In this review, we outline the importance of gene flow and the factors affecting gene flow, especially for volant vertebrates. We especially discuss research studies from tropical biomes of South and Southeast Asia, highlight the lacuna in literature and provide an outline for future studies in this species-rich region.
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Affiliation(s)
- Kritika M. Garg
- grid.418831.70000 0004 0500 991XInstitute of Bioinformatics and Applied Biotechnology, Bengaluru, Karnataka India ,grid.449178.70000 0004 5894 7096Department of Biology, Ashoka University, Sonipat, Haryana India
| | - Balaji Chattopadhyay
- grid.449178.70000 0004 5894 7096Trivedi School of Biosciences, Ashoka University, Sonipat, Haryana India
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14
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Dolotovskaya S, Roos C, Heymann EW. Genetic monogamy and mate choice in a pair-living primate. Sci Rep 2020; 10:20328. [PMID: 33230212 PMCID: PMC7683532 DOI: 10.1038/s41598-020-77132-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/02/2020] [Indexed: 12/03/2022] Open
Abstract
In pair-living mammals, genetic monogamy is extremely rare. One possible reason is that in socially monogamous animals, mate choice can be severely constrained, increasing the risk of inbreeding or pairing with an incompatible or low-quality partner. To escape these constraints, individuals might engage in extra-pair copulations. Alternatively, inbreeding can be avoided by dispersal. However, little is known about the interactions between mating system, mate choice, and dispersal in pair-living mammals. Here we genotyped 41 wild individuals from 14 groups of coppery titi monkeys (Plecturocebus cupreus) in Peruvian Amazon using 18 microsatellite loci. Parentage analyses of 18 young revealed no cases of extra-pair paternity, indicating that the study population is mostly genetically monogamous. We did not find evidence for relatedness- or heterozygosity-based mate choice. Despite the lack of evidence for active inbreeding avoidance via mate choice, mating partners were on average not related. We further found that dispersal was not sex-biased, with both sexes dispersing opportunistically over varying distances. Our findings suggest that even opportunistic dispersal, as long as it is not constrained, can generate sufficient genetic diversity to prevent inbreeding. This, in turn, can render active inbreeding avoidance via mate choice and extra-pair copulations less necessary, helping to maintain genetic monogamy.
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Affiliation(s)
- Sofya Dolotovskaya
- Behavioral Ecology and Sociobiology Unit, German Primate Center, Göttingen, Germany. .,Primate Genetics Laboratory, German Primate Center, Göttingen, Germany.
| | - Christian Roos
- Primate Genetics Laboratory, German Primate Center, Göttingen, Germany.,Gene Bank of Primates, German Primate Center, Göttingen, Germany
| | - Eckhard W Heymann
- Behavioral Ecology and Sociobiology Unit, German Primate Center, Göttingen, Germany
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15
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Genetic consequences of social structure in the golden-crowned sifaka. Heredity (Edinb) 2020; 125:328-339. [PMID: 32792649 PMCID: PMC7555495 DOI: 10.1038/s41437-020-0345-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/08/2020] [Accepted: 07/14/2020] [Indexed: 11/08/2022] Open
Abstract
Many species are structured in social groups (SGs) where individuals exhibit complex mating strategies. Yet, most population genetic studies ignore SGs either treating them as small random-mating units or focusing on a higher hierarchical level (the population). Empirical studies acknowledging SGs have found an overall excess of heterozygotes within SGs and usually invoke inbreeding avoidance strategies to explain this finding. However, there is a lack of null models against which ecological theories can be tested and inbreeding avoidance quantified. Here, we investigate inbreeding (deviation from random mating) in an endangered forest-dwelling pair-living lemur species (Propithecus tattersalli). In particular, we measure the inbreeding coefficient (FIS) in empirical data at different scales: SGs, sampling sites and forest patches. We observe high excess of heterozygotes within SGs. The magnitude of this excess is highly dependent on the sampling scheme: while offspring are characterised by a high excess of heterozygotes (FIS < 0), the reproductive pair does not show dramatic departures from Hardy-Weinberg expectations. Moreover, the heterozygosity excess disappears at larger geographic scales (sites and forests). We use a modelling framework that incorporates details of the sifaka mating system but does not include active inbreeding avoidance mechanisms. The simulated data show that, although apparent "random mating" or even inbreeding may occur at the "population" level, outbreeding is maintained within SGs. Altogether our results suggest that social structure leads to high levels of outbreeding without the need for active inbreeding avoidance mechanisms. Thus, demonstrating and measuring the existence of active inbreeding avoidance mechanisms may be more difficult than usually assumed.
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16
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Class B, Brommer JE. Can dominance genetic variance be ignored in evolutionary quantitative genetic analyses of wild populations? Evolution 2020; 74:1540-1550. [PMID: 32510608 DOI: 10.1111/evo.14034] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 05/06/2020] [Accepted: 05/30/2020] [Indexed: 12/21/2022]
Abstract
Accurately estimating genetic variance components is important for studying evolution in the wild. Empirical work on domesticated and wild outbred populations suggests that dominance genetic variance represents a substantial part of genetic variance, and theoretical work predicts that ignoring dominance can inflate estimates of additive genetic variance. Whether this issue is pervasive in natural systems is unknown, because we lack estimates of dominance variance in wild populations obtained in situ. Here, we estimate dominance and additive genetic variance, maternal variance, and other sources of nongenetic variance in eight traits measured in over 9000 wild nestlings linked through a genetically resolved pedigree. We find that dominance variance, when estimable, does not statistically differ from zero and represents a modest amount (2-36%) of genetic variance. Simulations show that (1) inferences of all variance components for an average trait are unbiased; (2) the power to detect dominance variance is low; (3) ignoring dominance can mildly inflate additive genetic variance and heritability estimates but such inflation becomes substantial when maternal effects are also ignored. These findings hence suggest that dominance is a small source of phenotypic variance in the wild and highlight the importance of proper model construction for accurately estimating evolutionary potential.
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Affiliation(s)
- Barbara Class
- Global Change Ecology Research Group, University of the Sunshine Coast, 90 Sippy Downs Drive, Sippy Downs, QLD, 4556, Australia.,Department of Biology, University of Turku, University Hill, Turku, 20014, Finland
| | - Jon E Brommer
- Department of Biology, University of Turku, University Hill, Turku, 20014, Finland
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17
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Luna Á, Palma A, Sanz-Aguilar A, Tella JL, Carrete M. Sex, personality and conspecific density influence natal dispersal with lifetime fitness consequences in urban and rural burrowing owls. PLoS One 2020; 15:e0226089. [PMID: 32049995 PMCID: PMC7015421 DOI: 10.1371/journal.pone.0226089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 11/19/2019] [Indexed: 11/23/2022] Open
Abstract
There is a growing need to understand how species respond to habitat changes and the potential key role played by natal dispersal in population dynamics, structure and gene flow. However, few studies have explored differences in this process between conspecifics living in natural habitats and those inhabiting landscapes highly transformed by humans, such as cities. Here, we investigate how individual traits and social characteristics can influence the natal dispersal decisions of burrowing owls (Athene cunicularia) living in urban and rural areas, as well as the consequences in terms of reproductive success and apparent survival. We found short dispersal movements among individuals, with differences between urban and rural birds (i.e., the former covering shorter distances than the latter), maybe because of the higher conspecific density of urban compared to rural areas. Moreover, we found that urban and rural females as well as bold individuals (i.e., individuals with shorter flight initiation distance) exhibited longer dispersal distances than their counterparts. These dispersal decisions have effects on individual fitness. Individuals traveling longer distances increased their reproductive prospects (productivity during the first breeding attempt, and long term productivity). However, the apparent survival of females decreased when they dispersed farther from their natal territory. Although further research is needed to properly understand the ecological and evolutionary consequences of dispersal patterns in transformed habitats, our results provide information about the drivers and the consequences of the restricted natal movements of this species, which may explain its population structuring through restricted gene flow between and within urban and rural areas.
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Affiliation(s)
- Álvaro Luna
- Department of Conservation Biology, Estación Biológica de Doñana—CSIC, Sevilla, Spain
- Animal Demography and Ecology Unit, IMEDEA (CSIC-UIB), Esporles, Spain
| | - Antonio Palma
- Department of Conservation Biology, Estación Biológica de Doñana—CSIC, Sevilla, Spain
| | - Ana Sanz-Aguilar
- Animal Demography and Ecology Unit, IMEDEA (CSIC-UIB), Esporles, Spain
- Applied Zoology and Conservation Group, University of Balearic Islands, Palma, Spain
| | - José L. Tella
- Department of Conservation Biology, Estación Biológica de Doñana—CSIC, Sevilla, Spain
| | - Martina Carrete
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Sevilla, Spain
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18
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Li J, Lv L, Wang P, Wang Y, Hatchwell BJ, Zhang Z. Sex-biased dispersal patterns of a social passerine: complementary approaches and evidence for a role of spatial scale. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractAnimal dispersal patterns have important implications for many biological processes, but the measurement of dispersal is challenging and often requires the use of complementary approaches. In this study, we investigated the local-scale sex-biased dispersal pattern in a social bird, the black-throated tit (Aegithalos concinnus), in central China. Spatial genetic autocorrelation analyses suggested that significant fine-scale genetic structure existed in males but not in females. Mark–recapture analyses of ringed individuals also showed that female offspring were more dispersive than male offspring, supporting genetic evidence of local female-biased dispersal. These results were contrary to a previous finding of male-biased long-distance dispersal in this species that was based on analyses of gene flow across the species range in China. This implies that the species might potentially have a scale-dependent dispersal strategy, with females frequently dispersing further than males at the local level, but with a proportion of males occasionally dispersing over long distances and contributing more to gene flow at a larger geographical scale. Long-distance dispersal by male black-throated tits might be induced by competition for resources or by unfavourable environmental conditions, warranting further investigation, but our findings increase the evidence that geographical scale is an important factor to be considered when investigating animal dispersal patterns.
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Affiliation(s)
- Jianqiang Li
- School of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Lei Lv
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Pengcheng Wang
- Ministry of Education Key Laboratory for Biodiversity Sciences and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yong Wang
- Department of Biological and Environmental Sciences, School of Agricultural, Life and Natural Sciences, Alabama A&M University, Normal, AL, USA
| | - Ben J Hatchwell
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | - Zhengwang Zhang
- Ministry of Education Key Laboratory for Biodiversity Sciences and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China
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19
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Cayuela H, Boualit L, Laporte M, Prunier JG, Preiss F, Laurent A, Foletti F, Clobert J, Jacob G. Kin-dependent dispersal influences relatedness and genetic structuring in a lek system. Oecologia 2019; 191:97-112. [PMID: 31422471 DOI: 10.1007/s00442-019-04484-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 08/08/2019] [Indexed: 10/26/2022]
Abstract
Kin selection and dispersal play a critical role in the evolution of cooperative breeding systems. Limited dispersal increases relatedness in spatially structured populations (population viscosity), with the result that neighbours tend to be genealogical relatives. Yet the increase in neighbours' fitness-related performance through altruistic interaction may also result in habitat saturation and thus exacerbate local competition between kin. Our goal was to detect the footprint of kin selection and competition by examining the spatial structure of relatedness and by comparing non-effective and effective dispersal in a population of a lekking bird, Tetrao urogallus. For this purpose, we analysed capture-recapture and genetic data collected over a 6-year period on a spatially structured population of T. urogallus in France. Our findings revealed a strong spatial structure of relatedness in males. They also indicated that the population viscosity could allow male cooperation through two non-exclusive mechanisms. First, at their first lek attendance, males aggregate in a lek composed of relatives. Second, the distance corresponding to non-effective dispersal dramatically outweighed effective dispersal distance, which suggests that dispersers incur high post-settlement costs. These two mechanisms result in strong population genetic structuring in males. In females, our findings revealed a lower level of spatial structure of relatedness and genetic structure in respect to males. Additionally, non-effective dispersal and effective dispersal distances in females were highly similar, which suggests limited post-settlement costs. These results indicate that kin-dependent dispersal decisions and costs have a genetic footprint in wild populations and are factors that may be involved in the evolution of cooperative courtship.
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Affiliation(s)
- Hugo Cayuela
- Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Pavillon Charles-Eugène-Marchand, Québec, QC, G1V 0A6, Canada.
| | - Laurent Boualit
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Martin Laporte
- Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Pavillon Charles-Eugène-Marchand, Québec, QC, G1V 0A6, Canada
| | - Jérôme G Prunier
- Theoretical and Experimental Ecology Station (UMR 5371), National Centre for Scientific Research (CNRS), Paul Sabatier University (UPS), Moulis, France
| | - Françoise Preiss
- Groupe Tétras Vosges, Maison du Parc, 1, cour de l'Abbaye, 68140, Munster, France
| | - Alain Laurent
- Groupe Tétras Vosges, Maison du Parc, 1, cour de l'Abbaye, 68140, Munster, France
| | - Francesco Foletti
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Jean Clobert
- Theoretical and Experimental Ecology Station (UMR 5371), National Centre for Scientific Research (CNRS), Paul Sabatier University (UPS), Moulis, France
| | - Gwenaël Jacob
- Department of Biology, University of Fribourg, Fribourg, Switzerland
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20
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Valenzuela-Sánchez A, Cayuela H, Schmidt BR, Cunningham AA, Soto-Azat C. Slow natal dispersal across a homogeneous landscape suggests the use of mixed movement behaviours during dispersal in the Darwin's frog. Anim Behav 2019. [DOI: 10.1016/j.anbehav.2019.01.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Liebgold EB, Gerlach NM, Ketterson ED. Density-dependent fitness, not dispersal movements, drives temporal variation in spatial genetic structure in dark-eyed juncos (Junco hyemalis). Mol Ecol 2019; 28:968-979. [PMID: 30714237 DOI: 10.1111/mec.15040] [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: 07/27/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 11/29/2022]
Abstract
Some studies have found that dispersal rates and distances increase with density, indicating that density-dependent dispersal likely affects spatial genetic structure. In an 11-year mark-recapture study on a passerine, the dark-eyed junco, we tested whether density affected dispersal distance and/or fine-scale spatial genetic structure. Contrary to expectations, we found no effect of predispersal density on dispersal distance or the proportion of locally produced juveniles returning to the population from which they hatched. However, even though density did not affect dispersal distance or natal return rates, we found that density still did affect spatial genetic structure. We found significant positive spatial genetic structure at low densities of (postdispersal) adults but not at high densities. In years with high postdispersal (adult) densities that also had high predispersal (juvenile) densities in the previous year, we found negative spatial genetic structure, indicating high levels of dispersal. We found that density also affected fitness of recruits, and fitness of immigrants, potentially linking these population parameters with the spatial genetic structure detected. Immigrants and recruits rarely nested in low postdispersal density years. In contrast, in years with high postdispersal density, recruits were common and immigrants had equal success to local birds, so novel genotypes diluted the gene pool and effectively eliminated positive spatial genetic structure. In relation to fine-scale spatial genetic structure, fitness of immigrants and new recruits is poorly understood compared to dispersal movements, but we conclude that it can have implications for the spatial distribution of genotypes in populations.
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Affiliation(s)
- Eric B Liebgold
- Department of Biological Sciences, Salisbury University, Salisbury, Maryland
| | - Nicole M Gerlach
- Department of Biology, University of Florida, Gainesville, Florida
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22
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Fortin M, Vitet C, Souty-Grosset C, Richard FJ. How do familiarity and relatedness influence mate choice in Armadillidium vulgare? PLoS One 2018; 13:e0209893. [PMID: 30596784 PMCID: PMC6312335 DOI: 10.1371/journal.pone.0209893] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 12/13/2018] [Indexed: 11/18/2022] Open
Abstract
Mate choice is an important process in sexual selection and usually prevents inbreeding depression in populations. In the terrestrial isopod Armadillidium vulgare, the close physical proximity between individuals may increase the risk of reproducing with siblings. Moreover, individuals of this species can be infected with the feminizing bacteria of Wolbachia, which influence male mate choice. However, little is known about the kinship or familiarity assessment of the selected partner that occurs when a male can choose between females with or without Wolbachia. To investigate the potential mechanisms leading to mate choice and the potential impact of the parasite, we performed behavioral choice tests on males where they could choose between sibling vs. nonsibling females, familiar vs. unfamiliar females, and sibling familiar vs. unfamiliar nonsibling females. To investigate the costs of inbreeding, we compared the reproductive success of both sibling and nonsibling mates. Our results revealed that male copulation attempts were higher for familiar females and for nonsibling females when both females were Wolbachia-infected, but the duration was longer when both females were Wolbachia-free. When males mated with a sibling female, their fecundity was severely decreased, consistent with inbreeding depression. Overall, we observed copulations with all types of females and demonstrated discrimination capacities and potential preferences. We highlight the complexity of the tradeoff between kinship, familiarity and parasite transmission assessment for mate choice.
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Affiliation(s)
- Margot Fortin
- Laboratoire Ecologie et Biologie des Interactions, Team Ecologie, Evolution, Symbiose, Université de Poitiers, Poitiers, France
| | - Camille Vitet
- Laboratoire Ecologie et Biologie des Interactions, Team Ecologie, Evolution, Symbiose, Université de Poitiers, Poitiers, France
| | - Catherine Souty-Grosset
- Laboratoire Ecologie et Biologie des Interactions, Team Ecologie, Evolution, Symbiose, Université de Poitiers, Poitiers, France
| | - Freddie-Jeanne Richard
- Laboratoire Ecologie et Biologie des Interactions, Team Ecologie, Evolution, Symbiose, Université de Poitiers, Poitiers, France
- * E-mail:
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23
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Vuarin P, Bouchard A, Lesobre L, Levêque G, Chalah T, Saint Jalme M, Lacroix F, Hingrat Y, Sorci G. No evidence for prezygotic postcopulatory avoidance of kin despite high inbreeding depression. Mol Ecol 2018; 27:5252-5262. [PMID: 30565783 DOI: 10.1111/mec.14951] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 10/17/2018] [Indexed: 12/17/2022]
Abstract
Offspring resulting from mating among close relatives can suffer from impaired fitness through the expression of recessive alleles with deleterious effects. Postcopulatory sperm selection (a prezygotic mechanism of cryptic female choice) has been suggested to be an effective way to avoid inbreeding. To investigate whether postcopulatory female choice allows the avoidance of fertilization by close kin, we performed artificial inseminations in a promiscuous bird, the houbara bustard (Chlamydotis undulata undulata). Females were inseminated with a mix of sperm from triads of males, each constituted of a male genetically unrelated to the female, a first cousin and a half-sibling. When counting the number of eggs sired by unrelated males, cousins or half-siblings, we found a significant deviation from the expected random distribution, with more eggs sired by unrelated males. However, offspring sired by cousins, and especially by half-siblings suffered from high prehatching mortality, suggesting that the observed paternity skew towards unrelated males might reflect differential offspring mortality rather than sperm selection. In agreement with this hypothesis, within-triad siring success was similar for the three parental relatedness categories, but the relationship between siring and hatching success differed across categories. In clutches with high hatching success, unrelated males had the highest success while in clutches with high failure rate, half-siblings had the highest success. Offspring sired by half-siblings also suffered from reduced growth rate during the first three months and higher posthatching mortality. Hence, despite substantial fitness costs associated with fertilization by close relatives, females do not seem to select sperm of unrelated males.
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Affiliation(s)
- Pauline Vuarin
- Emirates left for Wildlife Propagation, Missour, Morocco.,Biogéosciences, UMR 6282 CNRS, Université de Bourgogne Franche-Comté, Dijon, France
| | - Alice Bouchard
- Emirates left for Wildlife Propagation, Missour, Morocco
| | - Loïc Lesobre
- Reneco International Wildlife Consultants LLC, Abu Dhabi, United Arab Emirates
| | | | - Toni Chalah
- Reneco International Wildlife Consultants LLC, Abu Dhabi, United Arab Emirates
| | - Michel Saint Jalme
- Centre d'Ecologie et des Sciences de la Conservation, UMR 7204 MNHN CNRS-UPMC, Museum National d'Histoire Naturelle, Paris, France
| | - Frédéric Lacroix
- Reneco International Wildlife Consultants LLC, Abu Dhabi, United Arab Emirates
| | - Yves Hingrat
- Reneco International Wildlife Consultants LLC, Abu Dhabi, United Arab Emirates
| | - Gabriele Sorci
- Biogéosciences, UMR 6282 CNRS, Université de Bourgogne Franche-Comté, Dijon, France
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24
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Benton CH, Delahay RJ, Smith FAP, Robertson A, McDonald RA, Young AJ, Burke TA, Hodgson D. Inbreeding intensifies sex- and age-dependent disease in a wild mammal. J Anim Ecol 2018; 87:1500-1511. [DOI: 10.1111/1365-2656.12878] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 05/20/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Clare H. Benton
- National Wildlife Management Centre; Animal and Plant Health Agency; Stonehouse UK
- Centre for Ecology and Conservation; University of Exeter; Penryn UK
| | - Richard J. Delahay
- National Wildlife Management Centre; Animal and Plant Health Agency; Stonehouse UK
| | - Freya A. P. Smith
- National Wildlife Management Centre; Animal and Plant Health Agency; Stonehouse UK
| | - Andrew Robertson
- National Wildlife Management Centre; Animal and Plant Health Agency; Stonehouse UK
- Environment and Sustainability Institute; University of Exeter; Penryn UK
| | - Robbie A. McDonald
- Environment and Sustainability Institute; University of Exeter; Penryn UK
| | - Andrew J. Young
- Centre for Ecology and Conservation; University of Exeter; Penryn UK
| | - Terry A. Burke
- Molecular Ecology Laboratory; University of Sheffield; Sheffield UK
| | - Dave Hodgson
- Centre for Ecology and Conservation; University of Exeter; Penryn UK
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25
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Perrier C, Lozano del Campo A, Szulkin M, Demeyrier V, Gregoire A, Charmantier A. Great tits and the city: Distribution of genomic diversity and gene-environment associations along an urbanization gradient. Evol Appl 2018; 11:593-613. [PMID: 29875805 PMCID: PMC5979639 DOI: 10.1111/eva.12580] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/19/2017] [Indexed: 01/02/2023] Open
Abstract
Urbanization is a growing concern challenging the evolutionary potential of wild populations by reducing genetic diversity and imposing new selection regimes affecting many key fitness traits. However, genomic footprints of urbanization have received little attention so far. Using RAD sequencing, we investigated the genomewide effects of urbanization on neutral and adaptive genomic diversity in 140 adult great tits Parus major collected in locations with contrasted urbanization levels (from a natural forest to highly urbanized areas of a city; Montpellier, France). Heterozygosity was slightly lower in the more urbanized sites compared to the more rural ones. Low but significant effect of urbanization on genetic differentiation was found, at the site level but not at the nest level, indicative of the geographic scale of urbanization impact and of the potential for local adaptation despite gene flow. Gene-environment association tests identified numerous SNPs with small association scores to urbanization, distributed across the genome, from which a subset of 97 SNPs explained up to 81% of the variance in urbanization, overall suggesting a polygenic response to selection in the urban environment. These findings open stimulating perspectives for broader applications of high-resolution genomic tools on other cities and larger sample sizes to investigate the consistency of the effects of urbanization on the spatial distribution of genetic diversity and the polygenic nature of gene-urbanization association.
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Affiliation(s)
- Charles Perrier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Ana Lozano del Campo
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Marta Szulkin
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
- Wild Urban Evolution and Ecology LaboratoryCentre of New TechnologiesUniversity of WarsawWarsawPoland
| | - Virginie Demeyrier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Arnaud Gregoire
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Anne Charmantier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
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26
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Slagsvold T, Wiebe KL. Immigrants and locally recruited birds differ in prey delivered to their offspring in blue tits and great tits. Anim Behav 2018. [DOI: 10.1016/j.anbehav.2018.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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27
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Mitchell J, Kyabulima S, Businge R, Cant MA, Nichols HJ. Kin discrimination via odour in the cooperatively breeding banded mongoose. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171798. [PMID: 29657784 PMCID: PMC5882708 DOI: 10.1098/rsos.171798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/21/2018] [Indexed: 06/08/2023]
Abstract
Kin discrimination is often beneficial for group-living animals as it aids in inbreeding avoidance and providing nepotistic help. In mammals, the use of olfactory cues in kin discrimination is widespread and may occur through learning the scents of individuals that are likely to be relatives, or by assessing genetic relatedness directly through assessing odour similarity (phenotype matching). We use scent presentations to investigate these possibilities in a wild population of the banded mongoose Mungos mungo, a cooperative breeder in which inbreeding risk is high and females breed communally, disrupting behavioural cues to kinship. We find that adults show heightened behavioural responses to unfamiliar (extra-group) scents than to familiar (within-group) scents. Interestingly, we found that responses to familiar odours, but not unfamiliar odours, varied with relatedness. This suggests that banded mongooses are either able to use an effective behavioural rule to identify likely relatives from within their group, or that phenotype matching is used in the context of within-group kin recognition but not extra-group kin recognition. In other cooperative breeders, familiarity is used within the group and phenotype matching may be used to identify unfamiliar kin. However, for the banded mongoose this pattern may be reversed, most likely due to their unusual breeding system which disrupts within-group behavioural cues to kinship.
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Affiliation(s)
- J. Mitchell
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
| | - S. Kyabulima
- Banded Mongoose Research Project, Mweya, Queen Elizabeth National Park, Uganda
| | - R. Businge
- Banded Mongoose Research Project, Mweya, Queen Elizabeth National Park, Uganda
| | - M. A. Cant
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Cornwall, UK
| | - H. J. Nichols
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
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28
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Martínez-Padilla J, Estrada A, Early R, Garcia-Gonzalez F. Evolvability meets biogeography: evolutionary potential decreases at high and low environmental favourability. Proc Biol Sci 2018; 284:rspb.2017.0516. [PMID: 28615500 DOI: 10.1098/rspb.2017.0516] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/12/2017] [Indexed: 11/12/2022] Open
Abstract
Understanding and forecasting the effects of environmental change on wild populations requires knowledge on a critical question: do populations have the ability to evolve in response to that change? However, our knowledge on how evolution works in wild conditions under different environmental circumstances is extremely limited. We investigated how environmental variation influences the evolutionary potential of phenotypic traits. We used published data to collect or calculate 135 estimates of evolvability of morphological traits of European wild bird populations. We characterized the environmental favourability of each population throughout the species' breeding distribution. Our results suggest that the evolutionary potential of morphological traits decreases as environmental favourability becomes high or low. Strong environmental selection pressures and high intra-specific competition may reduce species' evolutionary potential in low- and high- favourability areas, respectively. This suggests that species may be least able to adapt to new climate conditions at their range margins and at the centre. Our results underscore the need to consider the evolutionary potential of populations when studying the drivers of species distributions, particularly when predicting the effects of environmental change. We discuss the utility of integrating evolutionary dynamics into a biogeographical perspective to understand how environmental variation shapes evolutionary patterns. This approach would also produce more reliable predictions about the effect of environmental change on population persistence and therefore on biodiversity.
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Affiliation(s)
- J Martínez-Padilla
- Research Unit of Biodiversity, UMIB (CSIC, PA), University of Oviedo, C/Gonzalo Gutiérrez Quirós, s/n, 33600, Mieres, Asturias, Spain .,Estación Biológica de Doñana, C/Américo Vespucio, 26, 41092 Sevilla, Spain.,Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-Université de La Rochelle, Villiers-en-Bois, France
| | - A Estrada
- Research Unit of Biodiversity, UMIB (CSIC, PA), University of Oviedo, C/Gonzalo Gutiérrez Quirós, s/n, 33600, Mieres, Asturias, Spain.,Biogeography, Diversity and Conservation Research Team, Department of Animal Biology, University of Málaga, Málaga, Spain
| | - R Early
- Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Exeter, UK
| | - F Garcia-Gonzalez
- Estación Biológica de Doñana, C/Américo Vespucio, 26, 41092 Sevilla, Spain.,Centre for Evolutionary Biology, The University of Western Australia, Crawley, Australia
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29
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Barati A, Andrew RL, Gorrell JC, McDonald PG. Extra-pair paternity is not driven by inbreeding avoidance and does not affect provisioning rates in a cooperatively breeding bird, the noisy miner (Manorina melanocephala). Behav Ecol 2017. [DOI: 10.1093/beheco/arx158] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Nava C, Neves VC, Andris M, Dubois MP, Jarne P, Bolton M, Bried J. Reduced population size does not affect the mating strategy of a vulnerable and endemic seabird. Naturwissenschaften 2017; 104:103. [PMID: 29143134 DOI: 10.1007/s00114-017-1523-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 10/24/2017] [Accepted: 10/27/2017] [Indexed: 11/26/2022]
Abstract
Bottleneck episodes may occur in small and isolated animal populations, which may result in decreased genetic diversity and increased inbreeding, but also in mating strategy adjustment. This was evaluated in the vulnerable and socially monogamous Monteiro's Storm-petrel Hydrobates monteiroi, a seabird endemic to the Azores archipelago which has suffered a dramatic population decline since the XVth century. To do this, we conducted a genetic study (18 microsatellite markers) in the population from Praia islet, which has been monitored over 16 years. We found no evidence that a genetic bottleneck was associated with this demographic decline. Monteiro's Storm-petrels paired randomly with respect to genetic relatedness and body measurements. Pair fecundity was unrelated to genetic relatedness between partners. We detected only two cases of extra-pair parentage associated with an extra-pair copulation (out of 71 offspring). Unsuccessful pairs were most likely to divorce the next year, but genetic relatedness between pair mates and pair breeding experience did not influence divorce. Divorce enabled individuals to improve their reproductive performances after re-mating only when the new partner was experienced. Re-pairing with an experienced partner occurred more frequently when divorcees changed nest than when they retained their nest. This study shows that even in strongly reduced populations, genetic diversity can be maintained, inbreeding does not necessarily occur, and random pairing is not risky in terms of pair lifetime reproductive success. Given, however, that we found no clear phenotypic mate choice criteria, the part played by non-morphological traits should be assessed more accurately in order to better understand seabird mating strategies.
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Affiliation(s)
- Cristina Nava
- MARE (Marine and Environmental Science Centre), IMAR (Institute of Marine Research) and LARSyS Associated Lab, Departamento de Oceanografia e Pescas, Universidade dos Açores, Açores, 9901-862, Horta, Portugal.
| | - Verónica C Neves
- MARE (Marine and Environmental Science Centre), IMAR (Institute of Marine Research) and LARSyS Associated Lab, Departamento de Oceanografia e Pescas, Universidade dos Açores, Açores, 9901-862, Horta, Portugal
- CIBIO Research Center in Biodiversity and Genetic Resources, CIBIO-Azores, Department of Science and Technology, Portugal
| | - Malvina Andris
- MARE (Marine and Environmental Science Centre), IMAR (Institute of Marine Research) and LARSyS Associated Lab, Departamento de Oceanografia e Pescas, Universidade dos Açores, Açores, 9901-862, Horta, Portugal
| | - Marie-Pierre Dubois
- Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175, Centre National de la Recherche Scientifique, Université de Montpellier, Université Paul Valéry Montpellier-Ecole Pratique des Hautes Etudes, 1919 route de Mende, 34293, Montpellier Cedex 5, France
| | - Philippe Jarne
- Centre d'Ecologie Fonctionnelle et Evolutive, UMR 5175, Centre National de la Recherche Scientifique, Université de Montpellier, Université Paul Valéry Montpellier-Ecole Pratique des Hautes Etudes, 1919 route de Mende, 34293, Montpellier Cedex 5, France
| | - Mark Bolton
- RSPB Centre for Conservation Science, UK Headquarters, The Lodge, Sandy, Bedfordshire, SG19 2DL, UK
| | - Joël Bried
- MARE (Marine and Environmental Science Centre), IMAR (Institute of Marine Research) and LARSyS Associated Lab, Departamento de Oceanografia e Pescas, Universidade dos Açores, Açores, 9901-862, Horta, Portugal
- , 8 avenue de la reine Nathalie, 64200, Biarritz, France
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Sexual and non-sexual social preferences in male and female white-eyed bulbuls. Sci Rep 2017; 7:5847. [PMID: 28724892 PMCID: PMC5517633 DOI: 10.1038/s41598-017-06239-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 06/12/2017] [Indexed: 11/22/2022] Open
Abstract
While the function of ornaments shaped by sexual selection is to attract mates or drive off rivals, these signals may also evolve through social selection, in which the social context affects the fitness of signallers and receivers. Classical ‘mate choice’ experiments often reveal preferences for ornaments, but few studies have considered whether these are strictly sexual or reflect general social preferences. Indeed, an alternative possibility is that ornaments evolve through ‘non-sexual social selection’ (hereafter ‘social selection’). We examined the role of ornamentation (yellow ventral patch) and familiarity (individuals recognize group mates with which they have had previous interactions) on mate choice (opposite-sex stimuli preference) and social choice (same-sex stimuli preference) in both male and female white-eyed bulbuls (Pycnonotus xanthopygos). In the mate choice test, females preferred unfamiliar males with increased yellow. There were no biologically important differences in male preferences based on familiarity or intensity of patch colour. In the social choice test, females preferred to associate with familiar females. Males preferred to associate with familiar males but also preferred to associate with less ornamented males. Our results suggest that ornamentation and familiarity are important features, playing different roles in males and females, in both social and sexual selection processes.
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32
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Nichols HJ. The causes and consequences of inbreeding avoidance and tolerance in cooperatively breeding vertebrates. J Zool (1987) 2017. [DOI: 10.1111/jzo.12466] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- H. J. Nichols
- School of Natural Sciences and Psychology Liverpool John Moores University Liverpool UK
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33
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Dunn SJ, Byers JA. How Pronghorn Females Avoid Inbreeding Depression. Ethology 2016. [DOI: 10.1111/eth.12567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Stacey J. Dunn
- Department of Biological Sciences University of Idaho Moscow ID USA
| | - John A. Byers
- Department of Biological Sciences University of Idaho Moscow ID USA
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34
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Camacho C, Canal D, Potti J. Natal habitat imprinting counteracts the diversifying effects of phenotype-dependent dispersal in a spatially structured population. BMC Evol Biol 2016; 16:158. [PMID: 27503506 PMCID: PMC4976508 DOI: 10.1186/s12862-016-0724-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/18/2016] [Indexed: 12/01/2022] Open
Abstract
Background Habitat selection may have profound evolutionary consequences, but they strongly depend on the underlying preference mechanism, including genetically-determined, natal habitat and phenotype-dependent preferences. It is known that different mechanisms may operate at the same time, yet their relative contribution to population differentiation remains largely unexplored empirically mainly because of the difficulty of finding suitable study systems. Here, we investigate the role of early experience and genetic background in determining the outcome of settlement by pied flycatchers (Ficedula hypoleuca) breeding in two habitat patches between which dispersal and subsequent reproductive performance is influenced by phenotype (body size). For this, we conducted a cross-fostering experiment in a two-patch system: an oakwood and a conifer plantation separated by only 1 km. Results Experimental birds mostly returned to breed in the forest patch where they were raised, whether it was that of their genetic or their foster parents, indicating that decisions on where to settle are determined by individuals’ experience in their natal site, rather than by their genetic background. Nevertheless, nearly a third (27.6 %) moved away from the rearing habitat and, as previously observed in unmanipulated individuals, dispersal between habitats was phenotype-dependent. Pied flycatchers breeding in the oak and the pine forests are differentiated by body size, and analyses of genetic variation at microsatellite loci now provide evidence of subtle genetic differentiation between the two populations. This suggests that phenotype-dependent dispersal may contribute to population structure despite the short distance and widespread exchange of birds between the study plots. Conclusions Taken together, the current and previous findings that pied flycatchers do not always settle in the habitat to which they are best suited suggest that their strong tendency to return to the natal patch regardless of their body size might lead to maladaptive settlement decisions and thus constrain the potential of phenotype-dependent dispersal to promote microgeographic adaptation.
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Affiliation(s)
- Carlos Camacho
- Department of Evolutionary Ecology, Estación Biológica de Doñana-CSIC, Av. Américo Vespucio s/n, 41092, Seville, Spain.
| | - David Canal
- Department of Evolutionary Ecology, Estación Biológica de Doñana-CSIC, Av. Américo Vespucio s/n, 41092, Seville, Spain
| | - Jaime Potti
- Department of Evolutionary Ecology, Estación Biológica de Doñana-CSIC, Av. Américo Vespucio s/n, 41092, Seville, Spain
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35
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Sun Y, Wang T, Skidmore AK, Palmer SCF, Ye X, Ding C, Wang Q. Predicting and understanding spatio-temporal dynamics of species recovery: implications for Asian crested ibisNipponia nipponconservation in China. DIVERS DISTRIB 2016. [DOI: 10.1111/ddi.12460] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Yiwen Sun
- Department of Natural Resources; Faculty of Geo-Information Science and Earth Observation (ITC); University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Tiejun Wang
- Department of Natural Resources; Faculty of Geo-Information Science and Earth Observation (ITC); University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Andrew K. Skidmore
- Department of Natural Resources; Faculty of Geo-Information Science and Earth Observation (ITC); University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Stephen C. F. Palmer
- Institute of Biological and Environmental Sciences; University of Aberdeen; Aberdeen AB24 2TZ UK
| | - Xinping Ye
- College of Life Sciences; Shaanxi Normal University; Xi'an 710061 China
| | - Changqing Ding
- College of Nature Conservation; Beijing Forestry University; Beijing 100083 China
| | - Qi Wang
- College of Biological Science and Engineering; Shaanxi University of Technology; Hanzhong 723000 China
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36
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Vanpé C, Debeffe L, Galan M, Hewison AJM, Gaillard JM, Gilot-Fromont E, Morellet N, Verheyden H, Cosson JF, Cargnelutti B, Merlet J, Quéméré E. Immune gene variability influences roe deer natal dispersal. OIKOS 2016. [DOI: 10.1111/oik.02904] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cécile Vanpé
- Laboratoire de Biométrie et Biologie Evolutive (LBBE), CNRS UMR5558; Université Claude Bernard Lyon 1; 43 boulevard du 11 novembre 1918 69622 Villeurbanne Cedex France
| | - Lucie Debeffe
- CEFS; Univ. de Toulouse; INRA Castanet-Tolosan France
| | - Maxime Galan
- CEFS; Univ. de Toulouse; INRA Castanet-Tolosan France
- INRA, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro); Campus International de Baillarguet Montferrier-sur-Lez Cedex France
| | | | - Jean-Michel Gaillard
- Laboratoire de Biométrie et Biologie Evolutive (LBBE), CNRS UMR5558; Université Claude Bernard Lyon 1; 43 boulevard du 11 novembre 1918 69622 Villeurbanne Cedex France
| | - Emmanuelle Gilot-Fromont
- Laboratoire de Biométrie et Biologie Evolutive (LBBE), CNRS UMR5558; Université Claude Bernard Lyon 1; 43 boulevard du 11 novembre 1918 69622 Villeurbanne Cedex France
- VetAgro-sup; Univ. Lyon 1; Marcy l'Etoile France
| | | | | | - Jean-François Cosson
- INRA, UMR CBGP (INRA/IRD/Cirad/Montpellier SupAgro); Campus International de Baillarguet Montferrier-sur-Lez Cedex France
| | | | - Joël Merlet
- CEFS; Univ. de Toulouse; INRA Castanet-Tolosan France
| | - Erwan Quéméré
- CEFS; Univ. de Toulouse; INRA Castanet-Tolosan France
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37
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Cote J, Bocedi G, Debeffe L, Chudzińska ME, Weigang HC, Dytham C, Gonzalez G, Matthysen E, Travis J, Baguette M, Hewison AJM. Behavioural synchronization of large-scale animal movements - disperse alone, but migrate together? Biol Rev Camb Philos Soc 2016; 92:1275-1296. [DOI: 10.1111/brv.12279] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/23/2016] [Accepted: 04/06/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Julien Cote
- ENFA and UMR 5174 EDB (Laboratoire Évolution & Diversité Biologique), CNRS; Université Toulouse III - Paul Sabatier; Toulouse cedex 9 F-31062 France
| | - Greta Bocedi
- Institute of Biological and Environmental Sciences; University of Aberdeen; Aberdeen AB24 2TZ UK
| | - Lucie Debeffe
- CEFS, INRA; Université de Toulouse; Castanet Tolosan 31320 France
- Department of Biology; University of Saskatchewan; Saskatoon SK S7N 5E2 Canada
| | | | - Helene C. Weigang
- Department of Mathematics and Statistics; University of Helsinki; P.O. Box 68 Helsinki 00014 Finland
| | - Calvin Dytham
- Department of Biology; University of York; York YO10 5DD UK
| | - Georges Gonzalez
- CEFS, INRA; Université de Toulouse; Castanet Tolosan 31320 France
| | - Erik Matthysen
- Department of Biology; University of Antwerp; Antwerp B-2610 Belgium
| | - Justin Travis
- Institute of Biological and Environmental Sciences; University of Aberdeen; Aberdeen AB24 2TZ UK
| | - Michel Baguette
- Station d'Ecologie Théorique et Experimentale; CNRS UMR 5321; Moulis 09200 France
- Institut De Systématique, Evolution et Biodiversité, UMR 7205; Muséum National d'Histoire Naturelle; Paris cedex 5 FR-75005 France
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38
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Moore MP, Whiteman HH. Natal philopatry varies with larval condition in salamanders. Behav Ecol Sociobiol 2016. [DOI: 10.1007/s00265-016-2133-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Grabowska-Zhang AM, Hinde CA, Garroway CJ, Sheldon BC. Wherever I may roam: social viscosity and kin affiliation in a wild population despite natal dispersal. Behav Ecol 2016; 27:1263-1268. [PMID: 27418755 PMCID: PMC4943112 DOI: 10.1093/beheco/arw042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 02/02/2016] [Accepted: 02/05/2016] [Indexed: 11/17/2022] Open
Abstract
When it is time to leave home and disperse from the natal area, you might expect siblings to scatter far and wide. But in the great tit, siblings associate more than unrelated birds at feeders, and not only because they start off their journey from the same nest. Complex social behaviors can evolve when relatives cluster, and knowing how those clusters persist despite dispersal is important for understanding the evolution of sociality. Dispersal affects the social contexts individuals experience by redistributing individuals in space, and the nature of social interactions can have important fitness consequences. During the vagrancy stage of natal dispersal, after an individual has left its natal site and before it has settled to breed, social affiliations might be predicted by opportunities to associate (e.g., distance in space and time between natal points of origin) or kin preferences. We investigated the social structure of a population of juvenile great tits (Parus major) and asked whether social affiliations during vagrancy were predicted by 1) the distance between natal nest-boxes, 2) synchrony in fledge dates, and 3) accounting for spatial and temporal predictors, whether siblings tended to stay together. We show that association strength was affected predominantly by spatial proximity at fledging and, to a lesser extent, temporal proximity in birth dates. Independently of spatial and temporal effects, sibling pairs associated more often than expected by chance. Our results suggest that the structure of the winter population is shaped primarily by limits to dispersal through incomplete population mixing. In addition, our results reveal kin structure, and hence the scope for fitness-related interactions between particular classes of kin. Both spatial-mediated and socially mediated population structuring can have implications for our understanding of the evolution of sociality.
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Affiliation(s)
- Ada M Grabowska-Zhang
- Edward Grey Institute, Department of Zoology, University of Oxford , South Parks Road, Oxford OX1 3PS , UK
| | - Camilla A Hinde
- Behavioural Ecology Group, Wageningen University , Building 122, De Elst 1, 6708 WD Wageningen , The Netherlands
| | - Colin J Garroway
- Edward Grey Institute, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK; Department of Biological Sciences, University of Manitoba Biological Sciences Building, 50 Sifton Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Ben C Sheldon
- Edward Grey Institute, Department of Zoology, University of Oxford , South Parks Road, Oxford OX1 3PS , UK
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40
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García-Navas V, Bonnet T, Waldvogel D, Camenisch G, Postma E. Consequences of natal philopatry for reproductive success and mate choice in an Alpine rodent. Behav Ecol 2016. [DOI: 10.1093/beheco/arw031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Vitikainen EIK, Haag-Liautard C, Sundström L. Natal Dispersal, Mating Patterns, and Inbreeding in the Ant Formica exsecta. Am Nat 2015; 186:716-27. [DOI: 10.1086/683799] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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42
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Reid JM, Arcese P, Bocedi G, Duthie AB, Wolak ME, Keller LF. Resolving the conundrum of inbreeding depression but no inbreeding avoidance: Estimating sex-specific selection on inbreeding by song sparrows (Melospiza melodia). Evolution 2015; 69:2846-61. [PMID: 26420476 PMCID: PMC5057356 DOI: 10.1111/evo.12780] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 09/04/2015] [Accepted: 09/16/2015] [Indexed: 11/29/2022]
Abstract
Inbreeding avoidance among interacting females and males is not always observed despite inbreeding depression in offspring fitness, creating an apparent "inbreeding paradox." This paradox could be resolved if selection against inbreeding was in fact weak, despite inbreeding depression. However, the net magnitude and direction of selection on the degree to which females and males inbreed by pairing with relatives has not been explicitly estimated. We used long-term pedigree data to estimate phenotypic selection gradients on the degree of inbreeding that female and male song sparrows (Melospiza melodia) expressed by forming socially persistent breeding pairs with relatives. Fitness was measured as the total numbers of offspring and grand offspring contributed to the population, and as corresponding expected numbers of identical-by-descent allele copies, thereby accounting for variation in offspring survival, reproduction, and relatedness associated with variation in parental inbreeding. Estimated selection gradients on the degree to which individuals paired with relatives were weakly positive in females, but negative in males that formed at least one socially persistent pairing. However, males that paired had higher mean fitness than males that remained socially unpaired. These analyses suggest that net selection against inbreeding may be weak in both sexes despite strong inbreeding depression, thereby resolving the "inbreeding paradox."
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Affiliation(s)
- Jane M Reid
- Institute of Biological and Environmental Sciences, School of Biological Sciences, Zoology Building, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland.
| | - Peter Arcese
- Department of Forest and Conservation Sciences, University of British Columbia, 2424 Main Mall, Vancouver, BC, Canada, V6T 1Z4
| | - Greta Bocedi
- Institute of Biological and Environmental Sciences, School of Biological Sciences, Zoology Building, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland
| | - A Bradley Duthie
- Institute of Biological and Environmental Sciences, School of Biological Sciences, Zoology Building, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland
| | - Matthew E Wolak
- Institute of Biological and Environmental Sciences, School of Biological Sciences, Zoology Building, University of Aberdeen, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland
| | - Lukas F Keller
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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43
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Becker PJJ, Hegelbach J, Keller LF, Postma E. Phenotype-associated inbreeding biases estimates of inbreeding depression in a wild bird population. J Evol Biol 2015; 29:35-46. [PMID: 26362803 DOI: 10.1111/jeb.12759] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 09/04/2015] [Accepted: 09/07/2015] [Indexed: 02/05/2023]
Abstract
Inbreeding depression is usually quantified by regressing individual phenotypic values on inbreeding coefficients, implicitly assuming there is no correlation between an individual's phenotype and the kinship coefficient to its mate. If such an association between parental phenotype and parental kinship exists, and if the trait of interest is heritable, estimates of inbreeding depression can be biased. Here we first derive the expected bias as a function of the covariance between mean parental breeding value and parental kinship. Subsequently, we use simulated data to confirm the existence of this bias, and show that it can be accounted for in a quantitative genetic animal model. Finally, we use long-term individual-based data for white-throated dippers (Cinclus cinclus), a bird species in which inbreeding is relatively common, to obtain an empirical estimate of this bias. We show that during part of the study period, parents of inbred birds had shorter wings than those of outbred birds, and as wing length is heritable, inbred individuals were smaller, independent of any inbreeding effects. This resulted in the overestimation of inbreeding effects. Similarly, during a period when parents of inbred birds had longer wings, we found that inbreeding effects were underestimated. We discuss how such associations may have arisen in this system, and why they are likely to occur in others, too. Overall, we demonstrate how less biased estimates of inbreeding depression can be obtained within a quantitative genetic framework, and suggest that inbreeding and additive genetic effects should be accounted for simultaneously whenever possible.
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Affiliation(s)
- P J J Becker
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - J Hegelbach
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - L F Keller
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - E Postma
- Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
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44
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Song W, Kim E. Landscape factors affecting the distribution of the great tit in fragmented urban forests of Seoul, South Korea. LANDSCAPE AND ECOLOGICAL ENGINEERING 2015. [DOI: 10.1007/s11355-015-0280-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Parreira BR, Chikhi L. On some genetic consequences of social structure, mating systems, dispersal, and sampling. Proc Natl Acad Sci U S A 2015; 112:E3318-26. [PMID: 26080393 PMCID: PMC4491764 DOI: 10.1073/pnas.1414463112] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Many species are spatially and socially organized, with complex social organizations and dispersal patterns that are increasingly documented. Social species typically consist of small age-structured units, where a limited number of individuals monopolize reproduction and exhibit complex mating strategies. Here, we model social groups as age-structured units and investigate the genetic consequences of social structure under distinct mating strategies commonly found in mammals. Our results show that sociality maximizes genotypic diversity, which contradicts the belief that social groups are necessarily subject to strong genetic drift and at high risk of inbreeding depression. Social structure generates an excess of genotypic diversity. This is commonly observed in ecological studies but rarely reported in population genetic studies that ignore social structure. This heterozygosity excess, when detected, is often interpreted as a consequence of inbreeding avoidance mechanisms, but we show that it can occur even in the absence of such mechanisms. Many seemly contradictory results from ecology and population genetics can be reconciled by genetic models that include the complexities of social species. We find that such discrepancies can be explained by the intrinsic properties of social groups and by the sampling strategies of real populations. In particular, the number of social groups and the nature of the individuals that compose samples (e.g., nonreproductive and reproductive individuals) are key factors in generating outbreeding signatures. Sociality is an important component of population structure that needs to be revisited by ecologists and population geneticists alike.
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Affiliation(s)
- Bárbara R Parreira
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal;
| | - Lounès Chikhi
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal; CNRS, Université Paul Sabatier, Ecole Nationale de Formation Agronomique, UMR5174 EDB (Laboratoire Évolution & Diversité Biologique), F-31062 Toulouse, France
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46
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Low Genetic Diversity and Moderate Inbreeding Risk of an Insular Endemic Pit Viper (Gloydius shedaoensis): Implication for Conservation. J HERPETOL 2015. [DOI: 10.1670/13-185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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Bett NN, Hinch SG. Attraction of migrating adult sockeye salmon to conspecifics in the absence of natal chemical cues. Behav Ecol 2015. [DOI: 10.1093/beheco/arv062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Duthie AB, Reid JM. What happens after inbreeding avoidance? Inbreeding by rejected relatives and the inclusive fitness benefit of inbreeding avoidance. PLoS One 2015; 10:e0125140. [PMID: 25909185 PMCID: PMC4409402 DOI: 10.1371/journal.pone.0125140] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 03/20/2015] [Indexed: 11/18/2022] Open
Abstract
Avoiding inbreeding, and therefore avoiding inbreeding depression in offspring fitness, is widely assumed to be adaptive in systems with biparental reproduction. However, inbreeding can also confer an inclusive fitness benefit stemming from increased relatedness between parents and inbred offspring. Whether or not inbreeding or avoiding inbreeding is adaptive therefore depends on a balance between inbreeding depression and increased parent-offspring relatedness. Existing models of biparental inbreeding predict threshold values of inbreeding depression above which males and females should avoid inbreeding, and predict sexual conflict over inbreeding because these thresholds diverge. However, these models implicitly assume that if a focal individual avoids inbreeding, then both it and its rejected relative will subsequently outbreed. We show that relaxing this assumption of reciprocal outbreeding, and the assumption that focal individuals are themselves outbred, can substantially alter the predicted thresholds for inbreeding avoidance for focal males. Specifically, the magnitude of inbreeding depression below which inbreeding increases a focal male’s inclusive fitness increases with increasing depression in the offspring of a focal female and her alternative mate, and it decreases with increasing relatedness between a focal male and a focal female’s alternative mate, thereby altering the predicted zone of sexual conflict. Furthermore, a focal male’s inclusive fitness gain from avoiding inbreeding is reduced by indirect opportunity costs if his rejected relative breeds with another relative of his. By demonstrating that variation in relatedness and inbreeding can affect intra- and inter-sexual conflict over inbreeding, our models lead to novel predictions for family dynamics. Specifically, parent-offspring conflict over inbreeding might depend on the alternative mates of rejected relatives, and male-male competition over inbreeding might lead to mixed inbreeding strategies. Making testable quantitative predictions regarding inbreeding strategies occurring in nature will therefore require new models that explicitly capture variation in relatedness and inbreeding among interacting population members.
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Affiliation(s)
- A. Bradley Duthie
- Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
- * E-mail:
| | - Jane M. Reid
- Institute of Biological and Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen, United Kingdom
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49
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Novak S. Habitat heterogeneities versus spatial type frequency variances as driving forces of dispersal evolution. Ecol Evol 2015; 4:4589-97. [PMID: 25558354 PMCID: PMC4278812 DOI: 10.1002/ece3.1289] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 09/22/2014] [Accepted: 09/21/2014] [Indexed: 11/15/2022] Open
Abstract
Understanding the evolution of dispersal is essential for understanding and predicting the dynamics of natural populations. Two main factors are known to influence dispersal evolution: spatio-temporal variation in the environment and relatedness between individuals. However, the relation between these factors is still poorly understood, and they are usually treated separately. In this article, I present a theoretical framework that contains and connects effects of both environmental variation and relatedness, and reproduces and extends their known features. Spatial habitat variation selects for balanced dispersal strategies, whereby the population is kept at an ideal free distribution. Within this class of dispersal strategies, I explain how increased dispersal is promoted by perturbations to the dispersal type frequencies. An explicit formula shows the magnitude of the selective advantage of increased dispersal in terms of the spatial variability in the frequencies of the different dispersal strategies present. These variances are capable of capturing various sources of stochasticity and hence establish a common scale for their effects on the evolution of dispersal. The results furthermore indicate an alternative approach to identifying effects of relatedness on dispersal evolution.
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Affiliation(s)
- Sebastian Novak
- Institute of Science and Technology (IST) Austria Am Campus 1, Klosterneuburg, 3400, Austria
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Lee-Yaw J, Sechley T, Irwin D. Conflicting effects of microhabitats on Long-toed Salamander (Ambystoma macrodactylum) movement: implications for landscape connectivity. CAN J ZOOL 2015. [DOI: 10.1139/cjz-2014-0143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Understanding dispersal requires multiple lines of investigation, from the study of broad patterns of population connectivity to the identification of factors impacting movement at local scales. To determine the potential effects of different microhabitats on dispersal in the Long-toed Salamander (Ambystoma macrodactylum Baird, 1850), we experimentally evaluated mobility, moisture loss, and habitat choice in response to five common substrates (deciduous and coniferous leaf litter, grass, moss, and sand). Specifically, we examined differences in the efficiency with which salamanders moved across substrates when motivated to move. We then quantified moisture loss in each substrate and evaluated habitat preference. Our results point to a trade-off between substrates that are easily traversed and those that offer high protection against desiccation. Habitat choice appeared to balance these two aspects of performance, with salamanders favouring a substrate that offered both low resistance to movement and high protection against desiccation. This result was context-dependent, as preferences shifted towards wetter but less easily traversed substrates when supplemental cover objects were made available. Overall, our study highlights the potential for individuals to respond to a given substrate in ways that can both facilitate and limit dispersal and thus underscores the need to consider different aspects of individual performance and behaviour when studying population connectivity.
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Affiliation(s)
- J.A. Lee-Yaw
- Department of Zoology, The University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada
| | - T.H. Sechley
- Department of Zoology, The University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada
| | - D.E. Irwin
- Department of Zoology, The University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada
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