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Chen K, Marschall EA, Sovic MG, Fries AC, Gibbs HL, Ludsin SA. assign
POP
:
An
r
package for population assignment using genetic, non‐genetic, or integrated data in a machine‐learning framework. Methods Ecol Evol 2017. [DOI: 10.1111/2041-210x.12897] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Kuan‐Yu Chen
- Aquatic Ecology LaboratoryDepartment of Evolution, Ecology and Organismal BiologyThe Ohio State University Columbus OH USA
| | - Elizabeth A. Marschall
- Aquatic Ecology LaboratoryDepartment of Evolution, Ecology and Organismal BiologyThe Ohio State University Columbus OH USA
| | - Michael G. Sovic
- Department of Evolution, Ecology and Organismal Biology and Ohio Biodiversity Conservation PartnershipThe Ohio State University Columbus OH USA
- Comprehensive Cancer CenterThe Ohio State University Columbus OH USA
| | - Anthony C. Fries
- Department of Evolution, Ecology and Organismal Biology and Ohio Biodiversity Conservation PartnershipThe Ohio State University Columbus OH USA
- United States Air Force School of Aerospace MedicineWright‐Patterson AFB OH USA
| | - H. Lisle Gibbs
- Department of Evolution, Ecology and Organismal Biology and Ohio Biodiversity Conservation PartnershipThe Ohio State University Columbus OH USA
| | - Stuart A. Ludsin
- Aquatic Ecology LaboratoryDepartment of Evolution, Ecology and Organismal BiologyThe Ohio State University Columbus OH USA
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52
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Shirk AJ, Landguth EL, Cushman SA. A comparison of regression methods for model selection in individual‐based landscape genetic analysis. Mol Ecol Resour 2017; 18:55-67. [DOI: 10.1111/1755-0998.12709] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 06/06/2017] [Accepted: 07/25/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew J. Shirk
- Climate Impacts Group College of the Environment University of Washington Seattle WA USA
| | - Erin L. Landguth
- Computational Ecology Laboratory Division of Biological Sciences University of Montana Missoula MT USA
| | - Samuel A. Cushman
- USDA Forest Service Rocky Mountain Research Station Flagstaff AZ USA
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53
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Peeters C, Aron S. Evolutionary reduction of female dispersal in Cataglyphis desert ants. Biol J Linn Soc Lond 2017. [DOI: 10.1093/biolinnean/blx052] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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54
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Kuhn A, Bauman D, Darras H, Aron S. Sex-biased dispersal creates spatial genetic structure in a parthenogenetic ant with a dependent-lineage reproductive system. Heredity (Edinb) 2017. [PMID: 28635968 DOI: 10.1038/hdy.2017.34] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Reproduction and dispersal are key aspects of species life history that influence spatial genetic structure in populations. Several ant species in the genus Cataglyphis have evolved a unique breeding system in which new reproductives (that is, queens and males) are produced asexually by parthenogenesis; in contrast, non-reproductives (that is, workers) are produced via sexual reproduction by mates from distinct genetic lineages. We investigated how these two coexisting reproductive methods affect population-level spatial genetic structure using the ant Cataglyphis mauritanica as a model. We obtained genotypes for queens and their male mates from 338 colonies, and we found that the two lineages present in the study population occurred with equal frequency. Furthermore, analysis of spatial genetic structure revealed strong sex-biased dispersal. Because queens were produced by parthenogenesis and because they dispersed over short distances, there was an extreme level of spatial structuring: a mosaic of patches composed of clonal queens was formed. Males, on the other hand, dispersed over several hundred metres and, thus, across patches, ensuring successful interlineage mating.
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Affiliation(s)
- A Kuhn
- Evolutionary Biology and Ecology, Université Libre de Bruxelles, Brussels, Belgium
| | - D Bauman
- Laboratoire d'Écologie Végétale et Biogéochimie, Université Libre de Bruxelles, Brussels, Belgium
| | - H Darras
- Evolutionary Biology and Ecology, Université Libre de Bruxelles, Brussels, Belgium
| | - S Aron
- Evolutionary Biology and Ecology, Université Libre de Bruxelles, Brussels, Belgium
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55
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Afonso Silva AC, Bragg JG, Potter S, Fernandes C, Coelho MM, Moritz C. Tropical specialist vs. climate generalist: Diversification and demographic history of sister species of
Carlia
skinks from northwestern Australia. Mol Ecol 2017; 26:4045-4058. [DOI: 10.1111/mec.14185] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 04/29/2016] [Accepted: 05/02/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Ana C. Afonso Silva
- Research School of Biology and Centre for Biodiversity Analysis Australian National University Acton ACT Australia
- cE3c ‐ Centre for Ecology, Evolution and Environmental Changes Departamento de Biologia Animal Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
| | - Jason G. Bragg
- Research School of Biology and Centre for Biodiversity Analysis Australian National University Acton ACT Australia
- Royal Botanic Garden Sydney NSW Australia
| | - Sally Potter
- Research School of Biology and Centre for Biodiversity Analysis Australian National University Acton ACT Australia
| | - Carlos Fernandes
- cE3c ‐ Centre for Ecology, Evolution and Environmental Changes Departamento de Biologia Animal Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
| | - Maria Manuela Coelho
- cE3c ‐ Centre for Ecology, Evolution and Environmental Changes Departamento de Biologia Animal Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
| | - Craig Moritz
- Research School of Biology and Centre for Biodiversity Analysis Australian National University Acton ACT Australia
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56
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Stepien CA, Karsiotis SI, Sullivan TJ, Klymus KE. Population genetic structure and comparative diversity of smallmouth bass Micropterus dolomieu: congruent patterns from two genomes. JOURNAL OF FISH BIOLOGY 2017; 90:2125-2147. [PMID: 28321848 DOI: 10.1111/jfb.13296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/13/2017] [Indexed: 06/06/2023]
Abstract
Genetic diversity and divergence patterns of smallmouth bass Micropterus dolomieu spawning groups are analysed across its northern native range with mtDNA cytochrome b gene sequences and eight unlinked nuclear DNA microsatellite loci. Results reveal high levels of genetic variability and significant differences in allelic representation among populations (mtDNA: mean ± s.e., HD = 0·50 ± 0·06, mean ± s.e., θST = 0·41 ± 0·02 and microsatellites: mean ± s.e. HO = 0·46 ± 0·03, mean ± s.e. θST = 0·25 ± 0·01). The distributions of 28 variant mtDNA haplotypes, which differ by an average of 3·94 nucleotides (range = 1-8), denote divergent representation among geographic areas. Microsatellite data support nine primary population groups, whose high self-assignment probabilities likewise display marked divergence. Genetic patterns demonstrate: (1) high genetic diversity in both genomes, (2) significant divergence among populations, probably resulting from natal site homing and low lifetime migration, (3) support for three post-glacial refugia that variously contributed to the current northern populations, which remain evident today despite waterway connectivity and (4) a weak yet significant genetic isolation by geographic distance pattern, indicating that other processes affect the differences among populations, such as territoriality and site fidelity.
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Affiliation(s)
- C A Stepien
- Great Lakes Genetics/Genomics Laboratory, Department of Environmental Sciences, University of Toledo, Toledo, OH, 43606, U.S.A
- NOAA Pacific Marine Environmental Laboratory (PMEL), 7600 Sand Point Way NE, Seattle, WA, 98115, U.S.A
| | - S I Karsiotis
- Great Lakes Genetics/Genomics Laboratory, Department of Environmental Sciences, University of Toledo, Toledo, OH, 43606, U.S.A
| | - T J Sullivan
- Great Lakes Genetics/Genomics Laboratory, Department of Environmental Sciences, University of Toledo, Toledo, OH, 43606, U.S.A
| | - K E Klymus
- Great Lakes Genetics/Genomics Laboratory, Department of Environmental Sciences, University of Toledo, Toledo, OH, 43606, U.S.A
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57
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Morinha F, Dávila JA, Bastos E, Cabral JA, Frías Ó, González JL, Travassos P, Carvalho D, Milá B, Blanco G. Extreme genetic structure in a social bird species despite high dispersal capacity. Mol Ecol 2017; 26:2812-2825. [PMID: 28222237 DOI: 10.1111/mec.14069] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 02/08/2017] [Accepted: 02/09/2017] [Indexed: 01/01/2023]
Abstract
Social barriers have been shown to reduce gene flow and contribute to genetic structure among populations in species with high cognitive capacity and complex societies, such as cetaceans, apes and humans. In birds, high dispersal capacity is thought to prevent population divergence unless major geographical or habitat barriers induce isolation patterns by dispersal, colonization or adaptation limitation. We report that Iberian populations of the red-billed chough, a social, gregarious corvid with high dispersal capacity, show a striking degree of genetic structure composed of at least 15 distinct genetic units. Monitoring of marked individuals over 30 years revealed that long-distance movements over hundreds of kilometres are common, yet recruitment into breeding populations is infrequent and highly philopatric. Genetic differentiation is weakly related to geographical distance, and habitat types used are overall qualitatively similar among regions and regularly shared by individuals of different populations, so that genetic structure is unlikely to be due solely to isolation by distance or isolation by adaptation. Moreover, most population nuclei showed relatively high levels of genetic diversity, suggesting a limited role for genetic drift in significantly differentiating populations. We propose that social mechanisms may underlie this unprecedented level of genetic structure in birds through a pattern of isolation by social barriers not yet described, which may have driven this remarkable population divergence in the absence of geographical and environmental barriers.
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Affiliation(s)
- Francisco Morinha
- Laboratory of Applied Ecology, Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal.,Morinha Lab - Laboratory of Biodiversity and Molecular Genetics, Rua Dr. José Figueiredo, lote L-2, Lj B5, 5000-562, Vila Real, Portugal
| | - José A Dávila
- Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC, UCLM, JCCM), Ciudad Real, Spain
| | - Estela Bastos
- Laboratory of Applied Ecology, Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal.,Department of Genetics and Biotechnology, School of Life and Environmental Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - João A Cabral
- Laboratory of Applied Ecology, Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Óscar Frías
- National Museum of Natural Sciences (MNCN), Spanish National Research Council (CSIC), Madrid, 28006, Spain
| | - José L González
- National Museum of Natural Sciences (MNCN), Spanish National Research Council (CSIC), Madrid, 28006, Spain
| | - Paulo Travassos
- Laboratory of Applied Ecology, Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Diogo Carvalho
- Laboratory of Applied Ecology, Centre for Research and Technology of Agro-Environment and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Borja Milá
- National Museum of Natural Sciences (MNCN), Spanish National Research Council (CSIC), Madrid, 28006, Spain
| | - Guillermo Blanco
- National Museum of Natural Sciences (MNCN), Spanish National Research Council (CSIC), Madrid, 28006, Spain
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58
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Wang W, Yao M. Fine-scale genetic structure analyses reveal dispersal patterns in a critically endangered primate, Trachypithecus leucocephalus. Am J Primatol 2017; 79. [PMID: 28100010 DOI: 10.1002/ajp.22635] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 12/11/2016] [Accepted: 12/15/2016] [Indexed: 11/06/2022]
Abstract
Dispersal is a critically important life history trait of social organisms that has a major impact on the population genetic structure and social relationships within groups. Primates exhibit highly diversified dispersal and philopatry patterns, but knowledge of these patterns is difficult to obtain and usually limited to observations of a small number of focal social groups or individuals. Here, we investigated the dispersal pattern of a critically endangered colobine monkey, the white-headed langur (Trachypithecus leucocephalus), using molecular approaches, and sex-specific population genetic structure analyses at fine geographical scales. We non-invasively collected 403 fecal samples from 41 social groups across 90% of the langur's range in Fusui (FS) and Chongzuo (CZ) in southwestern Guangxi Province, China. We identified 214 unique individuals from the samples by genotyping 15 polymorphic autosomal microsatellite loci, a sex-specific marker, and sequencing the mitochondrial DNA (mtDNA) hypervariable region I (HVRI). We found higher intragroup than intergroup genetic relatedness in males and females in both populations. A significant positive correlation between genetic distance and geographical distance, that is a pattern of isolation-by-distance, was detected in females from the FS population, but not in males. Spatial autocorrelation analyses revealed high within-group relatedness in both sexes and populations, as well as an additional positive correlation at the 0.5-km distance class in females from the FS population. Furthermore, we inferred first-generation migrants using genetic assignment tests. Our results suggest that male T. leucocephalus disperse at random distances within habitat areas, whereas dispersal of females may mainly occur among adjacent groups near their home site. Our study provides the first genetic evidence for sex-biased dispersal in T. leucocephalus, which has important management and conservation implications for the species.
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Affiliation(s)
- Weiran Wang
- School of Life Sciences, Peking University, Beijing, China.,Beijing National Day School, Beijing, China
| | - Meng Yao
- School of Life Sciences, Peking University, Beijing, China
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59
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Ellis S, Procter DS, Buckham-Bonnett P, Robinson EJH. Inferring polydomy: a review of functional, spatial and genetic methods for identifying colony boundaries. INSECTES SOCIAUX 2016; 64:19-37. [PMID: 28255180 PMCID: PMC5310590 DOI: 10.1007/s00040-016-0534-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 11/04/2016] [Accepted: 11/06/2016] [Indexed: 06/06/2023]
Abstract
Identifying the boundaries of a social insect colony is vital for properly understanding its ecological function and evolution. Many species of ants are polydomous: colonies inhabit multiple, spatially separated, nests. Ascertaining which nests are parts of the same colony is an important consideration when studying polydomous populations. In this paper, we review the methods that are used to identify which nests are parts of the same polydomous colony and to determine the boundaries of colonies. Specifically, we define and discuss three broad categories of approach: identifying nests sharing resources, identifying nests sharing space, and identifying nests sharing genes. For each of these approaches, we review the theoretical basis, the limitations of the approach and the methods that can be used to implement it. We argue that all three broad approaches have merits and weaknesses, and provide a methodological comparison to help researchers select the tool appropriate for the biological question they are investigating.
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Affiliation(s)
- S. Ellis
- Department of Biology and York Centre for Complex Systems Analysis, University of York, York, UK
- Centre for Research in Animal Behaviour, University of Exeter, Exeter, UK
| | - D. S. Procter
- Department of Biology and York Centre for Complex Systems Analysis, University of York, York, UK
- Centre for Exercise, Nutrition and Health Sciences, School of Policy Studies, University of Bristol, Bristol, UK
| | - P. Buckham-Bonnett
- Department of Biology and York Centre for Complex Systems Analysis, University of York, York, UK
| | - E. J. H. Robinson
- Department of Biology and York Centre for Complex Systems Analysis, University of York, York, UK
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60
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Sagot M, Phillips CD, Baker RJ, Stevens RD. Human-modified habitats change patterns of population genetic structure and group relatedness in Peter's tent-roosting bats. Ecol Evol 2016; 6:6050-63. [PMID: 27648225 PMCID: PMC5016631 DOI: 10.1002/ece3.2255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/19/2016] [Accepted: 05/23/2016] [Indexed: 11/23/2022] Open
Abstract
Although coloniality is widespread among mammals, it is still not clear what factors influence composition of social groups. As animals need to adapt to multiple habitat and environmental conditions throughout their range, variation in group composition should be influenced by adaptive adjustment to different ecological factors. Relevant to anthropogenic disturbance, increased habitat modification by humans can alter species' presence, density, and population structure. Therefore, it is important to understand the consequences of changes to landscape composition, in particular how habitat modification affects social structure of group-forming organisms. Here, we combine information on roosting associations with genetic structure of Peter's tent-roosting bats, Uroderma bilobatum to address how different habitat characteristics at different scales affect structure of social groups. By dividing analyses by age and sex, we determined that genetic structure was greater for adult females than adult males or offspring. Habitat variables explained 80% of the variation in group relatedness (mainly influenced by female relatedness) with roost characteristics contributing the most explained variation. This suggests that females using roosts of specific characteristics exhibit higher relatedness and seem to be philopatric. These females mate with more males than do more labile female groups. Results describe ecological and microevolutionary processes, which affect relatedness and social structure; findings are highly relevant to species distributions in both natural and human-modified environments.
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Affiliation(s)
- Maria Sagot
- Department of Biological SciencesState University of New York at OswegoOswegoNew York13126
| | - Caleb D. Phillips
- Department of Biological SciencesTexas Tech UniversityLubbockTexas79409
| | - Robert J. Baker
- Department of Biological SciencesTexas Tech UniversityLubbockTexas79409
| | - Richard D. Stevens
- Department of Natural Resources ManagementTexas Tech UniversityLubbockTexas79409
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61
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Jahner JP, Gibson D, Weitzman CL, Blomberg EJ, Sedinger JS, Parchman TL. Fine-scale genetic structure among greater sage-grouse leks in central Nevada. BMC Evol Biol 2016; 16:127. [PMID: 27301494 PMCID: PMC4908695 DOI: 10.1186/s12862-016-0702-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 06/07/2016] [Indexed: 01/07/2023] Open
Abstract
Background Mating systems that reduce dispersal and lead to non-random mating might increase the potential for genetic structure to arise at fine geographic scales. Greater sage-grouse (Centrocercus urophasianus) have a lek-based mating system and exhibit high site fidelity and skewed mating ratios. We quantified population structure by analyzing variation at 27,866 single-nucleotide polymorphisms in 140 males from ten leks (within five lek complexes) occurring in a small geographic region in central Nevada. Results Lek complexes, and to a lesser extent individual leks, formed statistically identifiable clusters in ordination analyses, providing evidence for fine-scale geographic genetic differentiation. Lek geography predicted genetic differentiation even at a small geographic scale, which could be sharpened by strong site fidelity. Relatedness was also higher among individuals within lek complexes (and leks), suggesting that reproductive skew, where few males participate in most of the successful matings, could also potentially contribute to genetic differentiation. Models incorporating a habitat resistance surface as a proxy for potentially reduced movement due to landscape features indicated that both geographic distance and habitat suitability (i.e. preferred habitat) predicted genetic structure, with no significant effect of man-made barriers to movement (i.e. power lines and roads). Finally, we illustrate how data sets containing fewer loci (<4000) had less statistical precision and failed to detect the full degree of genetic structure. Conclusion Our results suggest that habitat features and lek site geography of sage-grouse shape fine scale genetic structure, and highlight how larger data sets can have increased precision and accuracy for quantifying ecologically relevant genetic structure over small geographic scales. Electronic supplementary material The online version of this article (doi:10.1186/s12862-016-0702-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joshua P Jahner
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA. .,Department of Biology, University of Nevada, Reno, NV, 89557, USA.
| | - Daniel Gibson
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA.,Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV, 89557, USA
| | - Chava L Weitzman
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA.,Department of Biology, University of Nevada, Reno, NV, 89557, USA
| | - Erik J Blomberg
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA.,Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV, 89557, USA.,Department of Wildlife, Fisheries, and Conservation Biology, University of Maine, Orono, ME, 04469, USA
| | - James S Sedinger
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA.,Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV, 89557, USA
| | - Thomas L Parchman
- Program in Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, NV, 89557, USA.,Department of Biology, University of Nevada, Reno, NV, 89557, USA
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62
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Schneider TC, Kappeler PM, Pozzi L. Genetic population structure and relatedness in the narrow-striped mongoose ( Mungotictis decemlineata), a social Malagasy carnivore with sexual segregation. Ecol Evol 2016; 6:3734-3749. [PMID: 27231532 PMCID: PMC4864277 DOI: 10.1002/ece3.2123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/16/2016] [Accepted: 03/21/2016] [Indexed: 11/13/2022] Open
Abstract
Information on the genetic structure of animal populations can allow inferences about mechanisms shaping their social organization, dispersal, and mating system. The mongooses (Herpestidae) include some of the best-studied mammalian systems in this respect, but much less is known about their closest relatives, the Malagasy carnivores (Eupleridae), even though some of them exhibit unusual association patterns. We investigated the genetic structure of the Malagasy narrow-striped mongoose (Mungotictis decemlineata), a small forest-dwelling gregarious carnivore exhibiting sexual segregation. Based on mtDNA and microsatellite analyses, we determined population-wide haplotype structure and sex-specific and within-group relatedness. Furthermore, we analyzed parentage and sibship relationships and the level of reproductive skew. We found a matrilinear population structure, with several neighboring female units sharing identical haplotypes. Within-group female relatedness was significantly higher than expected by chance in the majority of units. Haplotype diversity of males was significantly higher than in females, indicating male-biased dispersal. Relatedness within the majority of male associations did not differ from random, not proving any kin-directed benefits of male sociality in this case. We found indications for a mildly promiscuous mating system without monopolization of females by males, and low levels of reproductive skew in both sexes based on parentages of emergent young. Low relatedness within breeding pairs confirmed immigration by males and suggested similarities with patterns in social mongooses, providing a starting point for further investigations of mate choice and female control of reproduction and the connected behavioral mechanisms. Our study contributes to the understanding of the determinants of male sociality in carnivores as well as the mechanisms of female competition in species with small social units.
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Affiliation(s)
- Tilman C. Schneider
- Department of Sociobiology/AnthropologyUniversity of GöttingenKellnerweg 6D‐37077GöttingenGermany
- Behavioral Ecology & Sociobiology UnitGerman Primate CenterLeibniz Institute for Primate ResearchKellnerweg 4D‐37077GöttingenGermany
| | - Peter M. Kappeler
- Department of Sociobiology/AnthropologyUniversity of GöttingenKellnerweg 6D‐37077GöttingenGermany
- Behavioral Ecology & Sociobiology UnitGerman Primate CenterLeibniz Institute for Primate ResearchKellnerweg 4D‐37077GöttingenGermany
| | - Luca Pozzi
- Behavioral Ecology & Sociobiology UnitGerman Primate CenterLeibniz Institute for Primate ResearchKellnerweg 4D‐37077GöttingenGermany
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63
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Jorgensen JC, Ward EJ, Scheuerell MD, Zabel RW. Assessing spatial covariance among time series of abundance. Ecol Evol 2016; 6:2472-85. [PMID: 27066234 PMCID: PMC4789304 DOI: 10.1002/ece3.2031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 01/18/2023] Open
Abstract
For species of conservation concern, an essential part of the recovery planning process is identifying discrete population units and their location with respect to one another. A common feature among geographically proximate populations is that the number of organisms tends to covary through time as a consequence of similar responses to exogenous influences. In turn, high covariation among populations can threaten the persistence of the larger metapopulation. Historically, explorations of the covariance in population size of species with many (>10) time series have been computationally difficult. Here, we illustrate how dynamic factor analysis (DFA) can be used to characterize diversity among time series of population abundances and the degree to which all populations can be represented by a few common signals. Our application focuses on anadromous Chinook salmon (Oncorhynchus tshawytscha), a species listed under the US Endangered Species Act, that is impacted by a variety of natural and anthropogenic factors. Specifically, we fit DFA models to 24 time series of population abundance and used model selection to identify the minimum number of latent variables that explained the most temporal variation after accounting for the effects of environmental covariates. We found support for grouping the time series according to 5 common latent variables. The top model included two covariates: the Pacific Decadal Oscillation in spring and summer. The assignment of populations to the latent variables matched the currently established population structure at a broad spatial scale. At a finer scale, there was more population grouping complexity. Some relatively distant populations were grouped together, and some relatively close populations – considered to be more aligned with each other – were more associated with populations further away. These coarse‐ and fine‐grained examinations of spatial structure are important because they reveal different structural patterns not evident in other analyses.
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Affiliation(s)
- Jeffrey C Jorgensen
- Conservation Biology Division Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 2725 Montlake Blvd E. Seattle Washington 98112; Present address: Ocean Associatesunder contract to Northwest Fisheries Science Center National Oceanic and Atmospheric Administration 2725 Montlake Blvd E. Seattle Washington 98112
| | - Eric J Ward
- Conservation Biology Division Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 2725 Montlake Blvd E. Seattle Washington 98112
| | - Mark D Scheuerell
- Fish Ecology Division Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 2725 Montlake Blvd E. Seattle Washington 98112
| | - Richard W Zabel
- Fish Ecology Division Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 2725 Montlake Blvd E. Seattle Washington 98112
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64
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Davidian E, Courtiol A, Wachter B, Hofer H, Höner OP. Why do some males choose to breed at home when most other males disperse? SCIENCE ADVANCES 2016; 2:e1501236. [PMID: 27034982 PMCID: PMC4803491 DOI: 10.1126/sciadv.1501236] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/04/2016] [Indexed: 05/16/2023]
Abstract
Dispersal is a key driver of ecological and evolutionary processes. Despite substantial efforts to explain the evolution of dispersal, we still do not fully understand why individuals of the same sex of a species vary in their propensity to disperse. The dominant hypothesis emphasizes movements and assumes that leaving home (dispersal) and staying at home (philopatry) are two alternative strategies providing different fitness. It suggests that only individuals of high phenotypic quality can pursue the most beneficial strategy; the others are left to do a "best-of-a-bad" job. An alternative hypothesis emphasizes settlement decisions and suggests that all individuals pursue a single strategy of choosing the breeding habitat or group with the highest fitness prospects; choosing the natal group (philopatry) and choosing a nonnatal group (dispersal) are then outcomes of these decisions. We tested both hypotheses using a long-term study of a free-ranging population of a group-living carnivore, the spotted hyena. We combined demographic data with data on dispersal-relevant phenotypic traits, breeding-group choice, survival, and reproductive success of 254 males. Our results contradict the best-of-a-bad-job hypothesis: philopatric males and dispersers were of similar phenotypic quality, had similar fitness, and applied similar settlement rules based on the fitness prospects in groups. Our findings demonstrate that the distribution of breeding partners can be more important in shaping dispersal patterns than the costs associated with the dispersal movement. The study provides novel insights into the processes leading to the coexistence of philopatry and dispersal within the same sex of a species.
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Affiliation(s)
- Eve Davidian
- Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany
| | - Alexandre Courtiol
- Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany
| | - Bettina Wachter
- Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany
| | - Heribert Hofer
- Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany
| | - Oliver P. Höner
- Department of Evolutionary Ecology, Leibniz Institute for Zoo and Wildlife Research, D-10315 Berlin, Germany
- Corresponding author. E-mail:
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65
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Levy H, Clucas GV, Rogers AD, Leaché AD, Ciborowski KL, Polito MJ, Lynch HJ, Dunn MJ, Hart T. Population structure and phylogeography of the Gentoo Penguin (Pygoscelis papua) across the Scotia Arc. Ecol Evol 2016; 6:1834-53. [PMID: 26933489 PMCID: PMC4760988 DOI: 10.1002/ece3.1929] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/08/2015] [Accepted: 12/10/2015] [Indexed: 01/24/2023] Open
Abstract
Climate change, fisheries' pressure on penguin prey, and direct human disturbance of wildlife have all been implicated in causing large shifts in the abundance and distribution of penguins in the Southern Ocean. Without mark-recapture studies, understanding how colonies form and, by extension, how ranges shift is challenging. Genetic studies, particularly focused on newly established colonies, provide a snapshot of colonization and can reveal the extent to which shifts in abundance and occupancy result from changes in demographic rates (e.g., reproduction and survival) or migration among suitable patches of habitat. Here, we describe the population structure of a colonial seabird breeding across a large latitudinal range in the Southern Ocean. Using multilocus microsatellite genotype data from 510 Gentoo penguin (Pygoscelis papua) individuals from 14 colonies along the Scotia Arc and Antarctic Peninsula, together with mitochondrial DNA data, we find strong genetic differentiation between colonies north and south of the Polar Front, that coincides geographically with the taxonomic boundary separating the subspecies P. p. papua and P. p. ellsworthii. Using a discrete Bayesian phylogeographic approach, we show that southern Gentoos expanded from a possible glacial refuge in the center of their current range, colonizing regions to the north and south through rare, long-distance dispersal. Our findings show that this dispersal is important for new colony foundation and range expansion in a seabird species that ordinarily exhibits high levels of natal philopatry, though persistent oceanographic features serve as barriers to movement.
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Affiliation(s)
- Hila Levy
- Department of Zoology University of Oxford South Parks Road Oxford OX1 3PS UK; USAF Air Force Institute of Technology 2950 Hobson Way WPAFB Ohio 45433-7765
| | - Gemma V Clucas
- Department of Zoology University of Oxford South Parks Road Oxford OX1 3PS UK; Ocean and Earth Sciences University of Southampton Waterfront Campus European Way Southampton SO14 3ZH UK
| | - Alex D Rogers
- Department of Zoology University of Oxford South Parks Road Oxford OX1 3PS UK
| | - Adam D Leaché
- Department of Biology and Burke Museum of Natural History and Culture University of Washington Box 351800 Seattle Washington 98195-1800
| | - Kate L Ciborowski
- Department of Biology University of Bristol Woodland Road Bristol BS8 1UG UK
| | - Michael J Polito
- Department of Oceanography and Coastal Sciences Louisiana State University Baton Rouge Louisiana 70803
| | - Heather J Lynch
- Department of Ecology and Evolution Stony Brook University Stony Brook New York 11794
| | - Michael J Dunn
- British Antarctic Survey High Cross Madingley Road Cambridge CB3 0ET UK
| | - Tom Hart
- Department of Zoology University of Oxford South Parks Road Oxford OX1 3PS UK
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66
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Oliveira EF, Gehara M, São-Pedro VA, Chen X, Myers EA, Burbrink FT, Mesquita DO, Garda AA, Colli GR, Rodrigues MT, Arias FJ, Zaher H, Santos RML, Costa GC. Speciation with gene flow in whiptail lizards from a Neotropical xeric biome. Mol Ecol 2015; 24:5957-75. [PMID: 26502084 DOI: 10.1111/mec.13433] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/15/2015] [Accepted: 10/21/2015] [Indexed: 11/29/2022]
Abstract
Two main hypotheses have been proposed to explain the diversification of the Caatinga biota. The riverine barrier hypothesis (RBH) claims that the São Francisco River (SFR) is a major biogeographic barrier to gene flow. The Pleistocene climatic fluctuation hypothesis (PCH) states that gene flow, geographic genetic structure and demographic signatures on endemic Caatinga taxa were influenced by Quaternary climate fluctuation cycles. Herein, we analyse genetic diversity and structure, phylogeographic history, and diversification of a widespread Caatinga lizard (Cnemidophorus ocellifer) based on large geographical sampling for multiple loci to test the predictions derived from the RBH and PCH. We inferred two well-delimited lineages (Northeast and Southwest) that have diverged along the Cerrado-Caatinga border during the Mid-Late Miocene (6-14 Ma) despite the presence of gene flow. We reject both major hypotheses proposed to explain diversification in the Caatinga. Surprisingly, our results revealed a striking complex diversification pattern where the Northeast lineage originated as a founder effect from a few individuals located along the edge of the Southwest lineage that eventually expanded throughout the Caatinga. The Southwest lineage is more diverse, older and associated with the Cerrado-Caatinga boundaries. Finally, we suggest that C. ocellifer from the Caatinga is composed of two distinct species. Our data support speciation in the presence of gene flow and highlight the role of environmental gradients in the diversification process.
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Affiliation(s)
- Eliana F Oliveira
- Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Marcelo Gehara
- Pós-Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Vinícius A São-Pedro
- Pós-Graduação em Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Xin Chen
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA
| | - Edward A Myers
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA
| | - Frank T Burbrink
- Department of Biology, 6S-143, College of Staten Island, The City University of New York, 2800 Victory Boulevard, Staten Island, NY, 10314, USA.,Department of Biology, The Graduate School, City University of New York, New York, NY, 10016, USA.,Department of Herpetology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024-5192, USA
| | - Daniel O Mesquita
- Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, PB, 58000-00, Brazil
| | - Adrian A Garda
- Departamento de Botânica e Zoologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Guarino R Colli
- Departamento de Zoologia, Universidade de Brasília, Brasília, DF, 70910-900, Brazil
| | - Miguel T Rodrigues
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Federico J Arias
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Hussam Zaher
- Museu de Zoologia, Universidade de São Paulo, São Paulo, SP, 04263-000, Brazil
| | - Rodrigo M L Santos
- Departamento de Zoologia, Universidade de São Paulo, São Paulo, SP, 05422-970, Brazil
| | - Gabriel C Costa
- Departamento de Ecologia, Universidade Federal do Rio Grande do Norte, Natal, RN, 59072-970, Brazil
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67
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Garrido‐Garduño T, Téllez‐Valdés O, Manel S, Vázquez‐Domínguez E. Role of habitat heterogeneity and landscape connectivity in shaping gene flow and spatial population structure of a dominant rodent species in a tropical dry forest. J Zool (1987) 2015. [DOI: 10.1111/jzo.12307] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Garrido‐Garduño
- Departamento de Ecología de la Biodiversidad Instituto de Ecología Universidad Nacional Autónoma de México Ciudad Universitaria México DF México
- Posgrado en Ciencias Biológicas Universidad Nacional Autónoma de México. Av. Universidad 3000 México DF México
| | - O. Téllez‐Valdés
- Laboratorio de Recursos Naturales Unidad de Biología Tecnología y Prototipos (UBIPRO) Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México Tlalnepantla Estado de México México
| | - S. Manel
- CEFE UMR 5175 CNRS‐Université de Montpellier‐Université Paul‐Valéry Montpellier‐EPHE laboratoire Biogéographie et écologie des vertébrés 1919 route de Mende, 34293 Montpellier Cedex 5 France
| | - E. Vázquez‐Domínguez
- Departamento de Ecología de la Biodiversidad Instituto de Ecología Universidad Nacional Autónoma de México Ciudad Universitaria México DF México
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68
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Frizzi F, Ciofi C, Dapporto L, Natali C, Chelazzi G, Turillazzi S, Santini G. The Rules of Aggression: How Genetic, Chemical and Spatial Factors Affect Intercolony Fights in a Dominant Species, the Mediterranean Acrobat Ant Crematogaster scutellaris. PLoS One 2015; 10:e0137919. [PMID: 26445245 PMCID: PMC4596555 DOI: 10.1371/journal.pone.0137919] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2015] [Accepted: 08/23/2015] [Indexed: 12/04/2022] Open
Abstract
Nest-mate recognition plays a key role in the biology of ants. Although individuals coming from a foreign nest are, in most cases, promptly rejected, the degree of aggressiveness towards non nest-mates may be highly variable among species and relies on genetic, chemical and environmental factors. We analyzed intraspecific relationships among neighboring colonies of the dominant Mediterranean acrobat ant Crematogaster scutellaris integrating genetic, chemical and behavioral analyses. Colony structure, parental relationships between nests, cuticular hydrocarbons profiles (CHCs) and aggressive behavior against non nest-mates were studied in 34 nests located in olive tree trunks. Bayesian clustering analysis of allelic variation at nine species-specific microsatellite DNA markers pooled nests into 14 distinct clusters, each representing a single colony, confirming a polydomous arrangement of nests in this species. A marked genetic separation among colonies was also detected, probably due to long distance dispersion of queens and males during nuptial flights. CHCs profiles varied significantly among colonies and between nests of the same colony. No relationship between CHCs profiles and genetic distances was detected. The level of aggressiveness between colonies was inversely related to chemical and spatial distance, suggesting a ‘nasty neighbor’ effect. Our findings also suggest that CHCs profiles in C. scutellaris may be linked to external environmental factors rather than genetic relationships.
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Affiliation(s)
- Filippo Frizzi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
- * E-mail:
| | - Claudio Ciofi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Leonardo Dapporto
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Chiara Natali
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Guido Chelazzi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Stefano Turillazzi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
| | - Giacomo Santini
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019, Sesto Fiorentino (FI), Italy
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69
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Large-scale population genetics of the mountain ant Proformica longiseta (Hymenoptera: Formicidae). POPUL ECOL 2015. [DOI: 10.1007/s10144-015-0505-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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70
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O’ Donnell CFJ, Richter S, Dool S, Monks JM, Kerth G. Genetic diversity is maintained in the endangered New Zealand long-tailed bat (Chalinolobus tuberculatus) despite a closed social structure and regular population crashes. CONSERV GENET 2015. [DOI: 10.1007/s10592-015-0763-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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71
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Liu M, Zhong QD, Cheng YR, Li SH, Fang S, Pu CE, Yuan HW, Shen SF. The Genetic Relatedness in Groups of Joint-Nesting Taiwan Yuhinas: Low Genetic Relatedness with Preferences for Male Kin. PLoS One 2015; 10:e0127341. [PMID: 26086267 PMCID: PMC4472666 DOI: 10.1371/journal.pone.0127341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 04/14/2015] [Indexed: 11/20/2022] Open
Abstract
The relative importance of direct and indirect fitness and, thus, the role of kinship in the evolution of social behavior is much debated. Studying the genetic relatedness of interacting individuals is crucial to improving our understanding of these issues. Here, we used a seven-year data set to study the genetic structure of the Taiwan yuhina (Yuhina brunneciceps), a joint-nesting passerine. Ten microsatellite loci were used to investigate the pair-wised relatedness among yuhina breeding group members. We found that the average genetic relatedness between same-sex group members was very low (0.069 for male dyads and 0.016 for female dyads). There was also a low ratio of closely-related kin (r>0.25) in the cooperative breeding groups of yuhinas (21.59% and 9.68% for male and female dyads, respectively). However, the relatedness of male dyads within breeding groups was significantly higher than female dyads. Our results suggest that yuhina cooperation is maintained primarily by direct fitness benefits to individuals; however, kin selection might play a role in partner choice for male yuhinas. Our study also highlights an important, but often neglected, question: Why do animals form non-kin groups, if kin are available? We use biological market theory to propose an explanation for group formation of unrelated Taiwan yuhinas.
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Affiliation(s)
- Mark Liu
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Quen-Dian Zhong
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
| | - Yi-Ru Cheng
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Shou-Hsien Li
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Shu Fang
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Chang-En Pu
- Scientific and Technical Research Center Investigation Bureau, Ministry of justice, Hsin-Tien, Taiwan
| | - Hsiao-Wei Yuan
- School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
- * E-mail: (SFS); (HWY)
| | - Sheng-Feng Shen
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
- * E-mail: (SFS); (HWY)
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72
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Blyton MDJ, Banks SC, Peakall R. The effect of sex-biased dispersal on opposite-sexed spatial genetic structure and inbreeding risk. Mol Ecol 2015; 24:1681-95. [PMID: 25761248 DOI: 10.1111/mec.13149] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 11/29/2022]
Abstract
Natal sex-biased dispersal has long been thought to reduce the risk of inbreeding by spatially separating opposite-sexed kin. Yet, comprehensive and quantitative evaluations of this hypothesis are lacking. In this study, we quantified the effectiveness of sex-biased dispersal as an inbreeding avoidance strategy by combining spatially explicit simulations and empirical data. We quantified the extent of kin clustering by measuring the degree of spatial autocorrelation among opposite-sexed individuals (FM structure). This allowed us to systematically explore how the extent of sex-biased dispersal, generational overlap, and mate searching distance, influenced both kin clustering, and the resulting inbreeding in the absence of complementary inbreeding avoidance strategies. Simulations revealed that when sex-biased dispersal was limited, positive FM genetic structure developed quickly and increased as the mate searching distance decreased or as generational overlap increased. Interestingly, complete long-range sex-biased dispersal did not prevent the development of FM genetic structure when generations overlapped. We found a very strong correlation between FM genetic structure and both FIS under random mating, and pedigree-based measures of inbreeding. Thus, we show that the detection of FM genetic structure can be a strong indicator of inbreeding risk. Empirical data for two species with different life history strategies yielded patterns congruent with our simulations. Our study illustrates a new application of spatial genetic autocorrelation analysis that offers a framework for quantifying the risk of inbreeding that is easily extendable to other species. Furthermore, our findings provide other researchers with a context for interpreting observed patterns of opposite-sexed spatial genetic structure.
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Affiliation(s)
- Michaela D J Blyton
- Evolution, Ecology and Genetics, Research School of Biology, The Australian National University, Acton, ACT, 2601, Australia; The Fenner School of Environment and Society, The Australian National University, Acton, ACT, 2601, Australia
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73
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Widdig A, Langos D, Kulik L. Sex differences in kin bias at maturation: Male rhesus macaques prefer paternal kin prior to natal dispersal. Am J Primatol 2015; 78:78-91. [PMID: 25810077 DOI: 10.1002/ajp.22401] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/22/2015] [Accepted: 02/26/2015] [Indexed: 11/09/2022]
Abstract
Dispersal and mating patterns are known to affect the availability of both maternal and paternal kin within social groups, with important effects on the evolution of sociality. It is generally assumed that the philopatric sex forms stronger social bonds than the dispersing sex, possibly as a result of reduced kin availability for the dispersing sex after departure. However, few primate studies have directly compared whether sex differences in association patterns, particular with kin, are already present prior to dispersal when kin availability should be the same for both sexes. Here, we compared affiliative and aggressive interactions in a female philopatric species, the rhesus macaque (Macaca mulatta), to test whether sex differences in kin bias already occur around the age of maturation, when both sexes still live together with kin in their natal group. Our data confirmed that kin availability was the same for both sexes prior to male dispersal. Similar kin availability was partially reflected by comparable association patterns, as both females and males preferentially interacted with maternal kin. However, females had stronger affiliative bonds with maternal kin than males of the same age, indicating that kin associations not only depended upon kin availability, but were also sex-specific. Similarly, males were significantly more likely to affiliate with paternal kin than non-kin, as compared to females, suggesting that males discriminated paternal kin from non-kin earlier in life than females. Males might have a stronger need than females to affiliate with paternal kin due to a reduced integration in the matrilineal family prior to dispersal and the high availability of paternally related age-peers, with whom males could potentially migrate. Females, in contrast, form stronger affiliations with maternal kin, which may enhance their offspring's survival. More comparative studies are needed to understand the impact of different dispersal regimes on patterns of kin associations.
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Affiliation(s)
- Anja Widdig
- Department of Primatology, Junior Research Group of Primate Kin Selection, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany.,Institute of Biology, Faculty of Bioscience, Pharmacy and Psychology, University of Leipzig, Leipzig, Germany
| | - Doreen Langos
- Department of Primatology, Junior Research Group of Primate Kin Selection, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany.,Institute of Biology, Faculty of Bioscience, Pharmacy and Psychology, University of Leipzig, Leipzig, Germany
| | - Lars Kulik
- Department of Primatology, Junior Research Group of Primate Kin Selection, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany.,Institute of Biology, Faculty of Bioscience, Pharmacy and Psychology, University of Leipzig, Leipzig, Germany
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74
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Purcell J, Pellissier L, Chapuisat M. Social structure varies with elevation in an Alpine ant. Mol Ecol 2015; 24:498-507. [PMID: 25521945 DOI: 10.1111/mec.13042] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/21/2014] [Accepted: 11/26/2014] [Indexed: 11/26/2022]
Abstract
Insect societies vary greatly in social organization, yet the relative roles of ecological and genetic factors in driving this variation remain poorly understood. Identifying how social structure varies along environmental gradients can provide insights into the ecological conditions favouring alternative social organizations. Here, we investigate how queen number variation is distributed along elevation gradients within a socially polymorphic ant, the Alpine silver ant Formica selysi. We sampled low- and high-elevation populations in multiple Alpine valleys. We show that populations belonging to different drainage basins are genetically differentiated. In contrast, there is little genetic divergence between low- and high-elevation populations within the same drainage basin. Thus, elevation gradients in each of the drainage basins represent independent contrasts. Whatever the elevation, all well-sampled populations are socially polymorphic, containing both monogynous (= one queen) and polygynous (= multiple queen) colonies. However, the proportion of monogynous colonies per population increases at higher elevation, while the effective number of queens in polygynous colonies decreases, and this pattern is replicated in each drainage basin. The increased prevalence of colonies with a single queen at high elevation is correlated with summer and winter average temperature, but not with precipitation. The colder, unpredictable and patchy environment encountered at higher elevations may favour larger queens with the ability to disperse and establish incipient monogynous colonies independently, while the stable and continuous habitat in the lowlands may favour large, fast-growing polygynous colonies. By highlighting differences in the environmental conditions favouring monogynous or polygynous colonies, this study sheds light on the ecological factors influencing the distribution and maintenance of social polymorphism.
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Affiliation(s)
- Jessica Purcell
- Department of Ecology and Evolution, University of Lausanne, Biophore, UNIL-Sorge, Lausanne, 1015, Switzerland
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75
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Chakraborty D, Ramakrishnan U, Sinha A. Quaternary climate change and social behavior shaped the genetic differentiation of an endangered montane primate from the southern edge of the Tibetan Plateau. Am J Primatol 2014; 77:271-84. [DOI: 10.1002/ajp.22343] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 08/26/2014] [Accepted: 08/27/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Debapriyo Chakraborty
- Nature Conservation Foundation; Mysore India
- National Centre for Biological Sciences; Tata Institute of Fundamental Research; Bangalore India
| | - Uma Ramakrishnan
- National Centre for Biological Sciences; Tata Institute of Fundamental Research; Bangalore India
| | - Anindya Sinha
- Nature Conservation Foundation; Mysore India
- National Centre for Biological Sciences; Tata Institute of Fundamental Research; Bangalore India
- National Institute of Advanced Studies; Bangalore India
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76
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Lawson SP, Legan AW, Graham C, Abbot P. Comparative phenotyping across a social transition in aphids. Anim Behav 2014. [DOI: 10.1016/j.anbehav.2014.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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77
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Norman JA, Blackmore CJ, Rourke M, Christidis L. Effects of mitochondrial DNA rate variation on reconstruction of Pleistocene demographic history in a social avian species, Pomatostomus superciliosus. PLoS One 2014; 9:e106267. [PMID: 25181547 PMCID: PMC4152169 DOI: 10.1371/journal.pone.0106267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 08/04/2014] [Indexed: 11/18/2022] Open
Abstract
Mitochondrial sequence data is often used to reconstruct the demographic history of Pleistocene populations in an effort to understand how species have responded to past climate change events. However, departures from neutral equilibrium conditions can confound evolutionary inference in species with structured populations or those that have experienced periods of population expansion or decline. Selection can affect patterns of mitochondrial DNA variation and variable mutation rates among mitochondrial genes can compromise inferences drawn from single markers. We investigated the contribution of these factors to patterns of mitochondrial variation and estimates of time to most recent common ancestor (TMRCA) for two clades in a co-operatively breeding avian species, the white-browed babbler Pomatostomus superciliosus. Both the protein-coding ND3 gene and hypervariable domain I control region sequences showed departures from neutral expectations within the superciliosus clade, and a two-fold difference in TMRCA estimates. Bayesian phylogenetic analysis provided evidence of departure from a strict clock model of molecular evolution in domain I, leading to an over-estimation of TMRCA for the superciliosus clade at this marker. Our results suggest mitochondrial studies that attempt to reconstruct Pleistocene demographic histories should rigorously evaluate data for departures from neutral equilibrium expectations, including variation in evolutionary rates across multiple markers. Failure to do so can lead to serious errors in the estimation of evolutionary parameters and subsequent demographic inferences concerning the role of climate as a driver of evolutionary change. These effects may be especially pronounced in species with complex social structures occupying heterogeneous environments. We propose that environmentally driven differences in social structure may explain observed differences in evolutionary rate of domain I sequences, resulting from longer than expected retention times for matriarchal lineages in the superciliosus clade.
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Affiliation(s)
- Janette A. Norman
- National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
- Department of Genetics, University of Melbourne, Parkville, Victoria, Australia
- Museum Victoria, Melbourne, Victoria, Australia
| | - Caroline J. Blackmore
- National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
| | - Meaghan Rourke
- Museum Victoria, Melbourne, Victoria, Australia
- School of Science and Engineering, Deakin University, Geelong, Victoria, Australia
- New South Wales Department of Primary Industries, Narrandera Fisheries Centre, Narrandera, New South Wales, Australia
| | - Les Christidis
- National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
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78
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Verdolin JL, Traud AL, Dunn RR. Key players and hierarchical organization of prairie dog social networks. ECOLOGICAL COMPLEXITY 2014. [DOI: 10.1016/j.ecocom.2014.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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79
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Rocha-Olivares A, González-Jaramillo M. Population genetic structure of Mexican Magnificent Frigatebirds: an integrative analysis of the influence of reproductive behavior and sex-biased dispersal. REV MEX BIODIVERS 2014. [DOI: 10.7550/rmb.40246] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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80
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Smith AL, Bull CM, Gardner MG, Driscoll DA. Life history influences how fire affects genetic diversity in two lizard species. Mol Ecol 2014; 23:2428-41. [DOI: 10.1111/mec.12757] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 04/01/2014] [Accepted: 04/13/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Annabel L. Smith
- Australian Research Council Centre of Excellence for Environmental Decisions and the National Environmental Research Program Environmental Decisions Hub; Fenner School of Environment and Society; The Australian National University; Fenner Building 141 Canberra ACT 0200 Australia
| | - C. Michael Bull
- School of Biological Sciences; Flinders University; GPO Box 2100 Adelaide SA 5001 Australia
| | - Michael G. Gardner
- School of Biological Sciences; Flinders University; GPO Box 2100 Adelaide SA 5001 Australia
- Evolutionary Biology Unit; South Australian Museum; North Terrace Adelaide SA 5000 Australia
| | - Don A. Driscoll
- Australian Research Council Centre of Excellence for Environmental Decisions and the National Environmental Research Program Environmental Decisions Hub; Fenner School of Environment and Society; The Australian National University; Fenner Building 141 Canberra ACT 0200 Australia
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81
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Saar M, Leniaud L, Aron S, Hefetz A. At the brink of supercoloniality: genetic, behavioral, and chemical assessments of population structure of the desert ant Cataglyphis niger. Front Ecol Evol 2014. [DOI: 10.3389/fevo.2014.00013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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82
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Hone DWE, Faulkes CG. A proposed framework for establishing and evaluating hypotheses about the behaviour of extinct organisms. J Zool (1987) 2014. [DOI: 10.1111/jzo.12114] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- D. W. E. Hone
- School of Biological and Chemical Sciences; Queen Mary University of London; London UK
| | - C. G. Faulkes
- School of Biological and Chemical Sciences; Queen Mary University of London; London UK
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83
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Pinho GM, Gonçalves da Silva A, Hrbek T, Venticinque EM, Farias IP. Kinship and social behavior of lowland tapirs (Tapirus terrestris) in a central Amazon landscape. PLoS One 2014; 9:e92507. [PMID: 24671057 PMCID: PMC3966805 DOI: 10.1371/journal.pone.0092507] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 02/23/2014] [Indexed: 11/29/2022] Open
Abstract
We tested the hypothesis that tapirs tolerate individuals from adjacent and overlapping home ranges if they are related. We obtained genetic data from fecal samples collected in the Balbina reservoir landscape, central Amazon. Samples were genotyped at 14 microsatellite loci, of which five produced high quality informative genotypes. Based on an analysis of 32 individuals, we inferred a single panmictic population with high levels of heterozygosity. Kinship analysis identified 10 pairs of full siblings or parent-offspring, 10 pairs of half siblings and 25 unrelated pairs. In 10 cases, the related individuals were situated on opposite margins of the reservoir, suggesting that tapirs are capable of crossing the main river, even after damming. The polygamous model was the most likely mating system for Tapirus terrestris. Moran's I index of allele sharing between pairs of individuals geographically close (<3 km) was similar to that observed between individual pairs at larger distances (>3 km). Confirming this result, the related individuals were not geographically closer than unrelated ones (W = 188.5; p = 0.339). Thus, we found no evidence of a preference for being close to relatives and observed a tendency for dispersal. The small importance of relatedness in determining spatial distribution of individuals is unusual in mammals, but not unheard of. Finally, non-invasive sampling allowed efficient access to the genetic data, despite the warm and humid climate of the Amazon, which accelerates DNA degradation.
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Affiliation(s)
- Gabriela M Pinho
- Programa de Pós-Graduação em Ecologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brasil; Laboratório de Evolução e Genética Animal, Departamento de Biologia, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
| | - Anders Gonçalves da Silva
- Division of Marine and Atmospheric Research, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Hobart, Tasmania, Australia; School of Biological Sciences, Monash University, Clayton, Victoria, Australia
| | - Tomas Hrbek
- Laboratório de Evolução e Genética Animal, Departamento de Biologia, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
| | - Eduardo M Venticinque
- Laboratório de Ecologia e Conservação da Biodiversidade, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brasil
| | - Izeni P Farias
- Laboratório de Evolução e Genética Animal, Departamento de Biologia, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
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84
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Morandin C, Loveridge AJ, Segelbacher G, Elliot N, Madzikanda H, Macdonald DW, Höglund J. Gene flow and immigration: genetic diversity and population structure of lions (Panthera leo) in Hwange National Park, Zimbabwe. CONSERV GENET 2014. [DOI: 10.1007/s10592-014-0571-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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85
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Dharmarajan G, Beasley JC, Fike JA, Rhodes OE. Effects of landscape, demographic and behavioral factors on kin structure: testing ecological predictions in a mesopredator with high dispersal capability. Anim Conserv 2013. [DOI: 10.1111/acv.12086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- G. Dharmarajan
- Department of Forestry and Natural Resources; Purdue University; West Lafayette IN USA
- Indian Institute of Science Education and Research - Kolkata; Mohanpur West Bengal India
| | - J. C. Beasley
- Department of Forestry and Natural Resources; Purdue University; West Lafayette IN USA
- Savannah River Ecology Laboratory; Aiken SC USA
| | - J. A. Fike
- Department of Forestry and Natural Resources; Purdue University; West Lafayette IN USA
- Fort Collins Science Center; Fort Collins CO USA
| | - O. E. Rhodes
- Department of Forestry and Natural Resources; Purdue University; West Lafayette IN USA
- Savannah River Ecology Laboratory; Aiken SC USA
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86
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Soare TW, Kumar A, Naish KA, O'Donnell S. Genetic evidence for landscape effects on dispersal in the army ant Eciton burchellii. Mol Ecol 2013; 23:96-109. [PMID: 24372755 DOI: 10.1111/mec.12573] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 09/30/2013] [Accepted: 10/15/2013] [Indexed: 11/29/2022]
Abstract
Inhibited dispersal, leading to reduced gene flow, threatens populations with inbreeding depression and local extinction. Fragmentation may be especially detrimental to social insects because inhibited gene flow has important consequences for cooperation and competition within and among colonies. Army ants have winged males and permanently wingless queens; these traits imply male-biased dispersal. However, army ant colonies are obligately nomadic and have the potential to traverse landscapes. Eciton burchellii, the most regularly nomadic army ant, is a forest interior species: colony raiding activities are limited in the absence of forest cover. To examine whether nomadism and landscape (forest clearing and elevation) affect population genetic structure in a montane E. burchellii population, we reconstructed queen and male genotypes from 25 colonies at seven polymorphic microsatellite loci. Pairwise genetic distances among individuals were compared to pairwise geographical and resistance distances using regressions with permutations, partial Mantel tests and random forests analyses. Although there was no significant spatial genetic structure in queens or males in montane forest, dispersal may be male-biased. We found significant isolation by landscape resistance for queens based on land cover (forest clearing), but not on elevation. Summed colony emigrations over the lifetime of the queen may contribute to gene flow in this species and forest clearing impedes these movements and subsequent gene dispersal. Further forest cover removal may increasingly inhibit Eciton burchellii colony dispersal. We recommend maintaining habitat connectivity in tropical forests to promote population persistence for this keystone species.
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Affiliation(s)
- Thomas W Soare
- Animal Behavior Program, Department of Psychology, University of Washington, Seattle, WA 98195, USA
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87
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The Interplay of Landscape Features and Social System on the Genetic Structure of a Primate Population: An Agent-Based Simulation Study Using “Tamarins”. INT J PRIMATOL 2013. [DOI: 10.1007/s10764-013-9726-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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88
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Huang Q, Li G, Husseneder C, Lei C. Genetic analysis of population structure and reproductive mode of the termite Reticulitermes chinensis snyder. PLoS One 2013; 8:e69070. [PMID: 23894408 PMCID: PMC3718804 DOI: 10.1371/journal.pone.0069070] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 06/05/2013] [Indexed: 11/19/2022] Open
Abstract
The subterranean termite Reticulitermes chinensis Snyder is an important pest of trees and buildings in China. Here, we characterized genetic structure and reproductive modes of R. chinensis from China for the first time. A total of 1,875 workers from 75 collection sites in Huanggang, Changsha and Chongqing cities were genotyped at eight microsatellite loci. Analysis of genetic clusters showed two subpopulations in Chongqing city. The Huanggang population showed a uniform genetic pattern and was separated from the other populations by the largest genetic distances (F ST: 0.17-0.20). In contrast, smaller genetic distances (F ST: 0.05-0.12) separated Changsha, Chongqing-1 and Chongqing-2 populations. Chongqing-1 was the only population showing a genetic bottleneck. Isolation by distance among colonies in the Huanggang population indicated limited alate dispersal or colony budding. Lack of isolation by distance among colonies within the populations of Changsha, Chongqing-1 and Chongqing-2, suggested long-range dispersal by alates and/or human-mediated transport. Overall, extended family colonies (73.91%) were predominant in all four populations, followed by simple (20.29%), and mixed family colonies (5.80%). Most simple families were headed by inbred related reproductive pairs in the Changsha population, while most simple families in the Chongqing-1 population were headed by outbred unrelated pairs. Simple families in the Huanggang population were a mixture of colonies headed by outbred or inbred reproductive pairs. The sample size of simple families in the Chongqing-2 population was too small to yield significant results. Extended families in all four populations were headed on the average by ≤10 neotenics. Mixed families likely originated from pleometrosis. Presence of heterozygote genotypes showed that all neotenic reproductives collected in addition from five field colonies in Wuhan city were sexually produced, suggesting that these colonies did not undergo parthenogenesis. This study contributes to better understanding of the variance of genetic structure and reproductive mode in the genus Reticulitermes.
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Affiliation(s)
- Qiuying Huang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Ganghua Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Claudia Husseneder
- Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, Louisiana, United States of America
| | - Chaoliang Lei
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan, China
- * E-mail:
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89
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Simpson S, Blampied N, Peniche G, Dozières A, Blackett T, Coleman S, Cornish N, Groombridge JJ. Genetic structure of introduced populations: 120-year-old DNA footprint of historic introduction in an insular small mammal population. Ecol Evol 2013; 3:614-28. [PMID: 23532702 PMCID: PMC3605850 DOI: 10.1002/ece3.486] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 12/24/2012] [Indexed: 11/06/2022] Open
Abstract
Wildlife populations have been introduced to new areas by people for centuries, but this human-mediated movement can disrupt natural patterns of genetic structure by altering patterns of gene flow. Insular populations are particularly prone to these influences due to limited opportunities for natural dispersal onto islands. Consequently, understanding how genetic patterns develop in island populations is important, particularly given that islands are frequently havens for protected wildlife. We examined the evolutionary origins and extent of genetic structure within the introduced island population of red squirrels (Sciurus vulgaris) on the Channel Island of Jersey using mitochondrial DNA (mtDNA) control region sequence and nuclear microsatellite genotypes. Our findings reveal two different genetic origins and a genetic architecture reflective of the introductions 120 years ago. Genetic structure is marked within the maternally inherited mtDNA, indicating slow dispersal of female squirrels. However, nuclear markers detected only weak genetic structure, indicating substantially greater male dispersal. Data from both mitochondrial and nuclear markers support historic records that squirrels from England were introduced to the west of the island and those from mainland Europe to the east. Although some level of dispersal and introgression across the island between the two introductions is evident, there has not yet been sufficient gene flow to erase this historic genetic "footprint." We also investigated if inbreeding has contributed to high observed levels of disease, but found no association. Genetic footprints of introductions can persist for considerable periods of time and beyond traditional timeframes of wildlife management.
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Affiliation(s)
- Siobhan Simpson
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent Canterbury, CT2 7NR, United Kingdom
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90
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Ingram KK, Pilko A, Heer J, Gordon DM. Colony life history and lifetime reproductive success of red harvester ant colonies. J Anim Ecol 2013; 82:540-50. [DOI: 10.1111/1365-2656.12036] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 11/12/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Krista K. Ingram
- Department of Biology; Colgate University; Hamilton; NY; 13346; USA
| | - Anna Pilko
- Department of Biology; Stanford University; Stanford; CA; 94305-5020; USA
| | - Jeffrey Heer
- Department of Computer Science; Stanford University; Stanford; CA; 94305-5020; USA
| | - Deborah M. Gordon
- Department of Biology; Stanford University; Stanford; CA; 94305-5020; USA
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91
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Vargo EL, Leniaud L, Swoboda LE, Diamond SE, Weiser MD, Miller DM, Bagnères AG. Clinal variation in colony breeding structure and level of inbreeding in the subterranean termitesReticulitermes flavipesandR. grassei. Mol Ecol 2013; 22:1447-62. [DOI: 10.1111/mec.12166] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/02/2012] [Accepted: 11/06/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Edward L. Vargo
- Department of Entomology; W. M. Keck Center for Behavioral Biology; North Carolina State University; Campus Box 7613 Raleigh NC 27695 USA
| | - Laurianne Leniaud
- I.R.B.I. CNRS UMR 7261; Faculté des Sciences et Techniques; Université François Rabelais; Parc de Grandmont 37200 Tours France
| | - Lois E. Swoboda
- Department of Entomology; Virginia Tech University; Blacksburg VA 24061 USA
| | - Sarah E. Diamond
- Department of Biology; North Carolina State University; Campus Box 7617 Raleigh NC 27695 USA
| | - Michael D. Weiser
- Department of Biology; North Carolina State University; Campus Box 7617 Raleigh NC 27695 USA
| | - Dini M. Miller
- Department of Entomology; Virginia Tech University; Blacksburg VA 24061 USA
| | - Anne-Geneviève Bagnères
- I.R.B.I. CNRS UMR 7261; Faculté des Sciences et Techniques; Université François Rabelais; Parc de Grandmont 37200 Tours France
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92
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Purcell J, Chapuisat M. BIDIRECTIONAL SHIFTS IN COLONY QUEEN NUMBER IN A SOCIALLY POLYMORPHIC ANT POPULATION. Evolution 2012; 67:1169-80. [DOI: 10.1111/evo.12010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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93
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Ugelvig LV, Cremer S. Effects of social immunity and unicoloniality on host-parasite interactions in invasive insect societies. Funct Ecol 2012. [DOI: 10.1111/1365-2435.12013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Line V. Ugelvig
- IST Austria (Institute of Science and Technology Austria); Am Campus 1, A-3400 Klosterneuburg Austria
| | - Sylvia Cremer
- IST Austria (Institute of Science and Technology Austria); Am Campus 1, A-3400 Klosterneuburg Austria
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94
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Nater A, Arora N, Greminger MP, van Schaik CP, Singleton I, Wich SA, Fredriksson G, Perwitasari-Farajallah D, Pamungkas J, Krützen M. Marked Population Structure and Recent Migration in the Critically Endangered Sumatran Orangutan (Pongo abelii). J Hered 2012; 104:2-13. [DOI: 10.1093/jhered/ess065] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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95
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References. Mol Ecol 2012. [DOI: 10.1002/9780470979365.refs] [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]
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96
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Helms K, Helms Cahan S. Large-scale regional variation in cooperation and conflict among queens of the desert ant Messor pergandei. Anim Behav 2012. [DOI: 10.1016/j.anbehav.2012.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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97
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Bei R, Chen J, Liu H, Huang J, Yu H, Wu Z. Isolation and characterization of 12 microsatellite loci in the Chinese crocodile lizard (Shinisaurus crocodilurus). CONSERV GENET RESOUR 2012. [DOI: 10.1007/s12686-012-9635-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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98
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Franklin MT, Ritland CE, Myers JH, Cory JS. Multiple mating and family structure of the western tent caterpillar, Malacosoma californicum pluviale: impact on disease resistance. PLoS One 2012; 7:e37472. [PMID: 22655050 PMCID: PMC3360058 DOI: 10.1371/journal.pone.0037472] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 04/23/2012] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Levels of genetic diversity can strongly influence the dynamics and evolutionary changes of natural populations. Survival and disease resistance have been linked to levels of genetic diversity in eusocial insects, yet these relationships remain untested in gregarious insects where disease transmission can be high and selection for resistance is likely to be strong. METHODOLOGY/PRINCIPAL FINDINGS Here we use 8 microsatellite loci to examine genetic variation in 12 families of western tent caterpillars, Malacosoma californicum pluviale from four different island populations to determine the relationship of genetic variability to survival and disease resistance. In addition these genetic markers were used to elucidate the population structure of western tent caterpillars. Multiple paternity was revealed by microsatellite markers, with the number of sires estimated to range from one to three per family (mean ± SE = 1.92±0.23). Observed heterozygosity (H(O)) of families was not associated to the resistance of families to a nucleopolyhedrovirus (NPV) (r = 0.161, F(1,12) = 0.271, P = 0.614), a major cause of mortality in high-density populations, but was positively associated with larval survival (r = 0.635, F(1,10) = 5.412, P = 0.048). Genetic differentiation among the families was high (F(ST) = 0.269, P<0.0001), and families from the same island were as differentiated as were families from other islands. CONCLUSION/SIGNIFICANCE We have been able to describe and characterize 8 microsatellite loci, which demonstrate patterns of variation within and between families of western tent caterpillars. We have discovered an association between larval survival and family-level heterozygosity that may be relevant to the population dynamics of this cyclic forest lepidopteran, and this will be the topic of future work.
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Affiliation(s)
- Michelle T. Franklin
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Carol E. Ritland
- Department of Forest Sciences, Genetic Data Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Judith H. Myers
- Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jenny S. Cory
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
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99
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Rossiter SJ, Zubaid A, Mohd-Adnan A, Struebig MJ, Kunz TH, Gopal S, Petit EJ, Kingston T. Social organization and genetic structure: insights from codistributed bat populations. Mol Ecol 2011; 21:647-61. [PMID: 22168272 DOI: 10.1111/j.1365-294x.2011.05391.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The impact of ecology and social organization on genetic structure at landscape spatial scales, where gene dynamics shape evolution as well as determine susceptibility to habitat fragmentation, is poorly understood. Attempts to assess these effects must take into account the potentially confounding effects of history. We used microsatellites to compare genetic structure in seven bat species with contrasting patterns of roosting ecology and social organization, all of which are codistributed in an ancient forest habitat that has been exceptionally buffered from radical habitat shifts. Over one thousand individuals were captured at foraging sites and genotyped at polymorphic microsatellite loci. Analyses of spatially explicit genotype data revealed interspecies differences in the extent of movement and gene flow and genetic structure across continuous intact forest. Highest positive genetic structure was observed in tree-roosting taxa that roost either alone or in small groups. By comparison, a complete absence of genetic autocorrelation was noted in the cave-roosting colonial species across the study area. Our results thus reveal measurable interspecies differences in the natural limits of gene flow in an unmodified habitat, which we attribute to contrasting roosting ecology and social organization. The consequences of ecology and behaviour for gene flow have important implications for conservation. In particular, tree-roosting species characterized by lower vagility and thus gene flow will be disproportionally impacted by landscape-scale forest clearance and habitat fragmentation, which are prevalent in the study region. Our method also highlights the usefulness of rapid sampling of foraging bats for assaying genetic structure, particularly where roosting sites are not always known.
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Affiliation(s)
- Stephen J Rossiter
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK.
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100
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LENIAUD LAURIANNE, HEFTEZ ABRAHAM, GRUMIAU LAURENT, ARON SERGE. Multiple mating and supercoloniality in Cataglyphis desert ants. Biol J Linn Soc Lond 2011. [DOI: 10.1111/j.1095-8312.2011.01772.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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