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Introduced, Mixed, and Peripheral: Conservation of Mitochondrial-DNA Lineages in the Wild Boar (Sus scrofa L.) Population in the Urals. DIVERSITY 2022. [DOI: 10.3390/d14110916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Translocations and introductions are important events that allow organisms to overcome natural barriers. The genetic background of colonization success and genetic consequences of the establishment of populations in new environments are of great interest for predicting species’ colonization success. The wild boar has been introduced into many parts of the world. We analyzed sequences of the mitochondrial-DNA control region in the wild boars introduced into the Ural region and compared them with sequences from founder populations (from Europe, the Caucasus, Central Asia, and the Far East). We found that the introduced population has high genetic diversity. Haplotypes from all the major phylogenetic clades were detected in the analyzed group of the animals from the Urals. In this group, no haplotypes identical to Far Eastern sequences were detectable despite a large number of founders from that region. The contribution of lineages originating from Eastern Europe was greater than expected from the proportions (%) of European and Asian animals in the founder populations. This is the first study on the genetic diversity and structure of a wild boar population of mixed origin at the northern periphery of this species’ geographical range.
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2
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Genetic analysis of hog deer (Axis porcinus) in Victoria, Australia, and its applications to invasive species and game management. EUR J WILDLIFE RES 2022. [DOI: 10.1007/s10344-022-01592-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractHog deer were introduced to Australia in the 1860s, where they have spread across the Gippsland region of Victoria. Due to its status as an introduced species and an important game animal within Victoria, management of the species is complex. Given this complexity, genetic studies can provide important information regarding population structure and diversity which can assist in controlling problematic populations of hog deer, while also ensuring viable game stock in sites managed as game reserves. The aim of this study was to investigate the population genetic structure and diversity of the Victorian hog deer 150 years after introduction using short tandem repeats (STRs). Hog deer samples were collected across 15 sites of differing management regimes in the Gippsland region of Victoria and genotyped for 13 polymorphic STR loci. Up to four distinct genetic clusters were identified across the sites sampled, suggesting that despite low observed genetic diversity, population structure is present across their range. It was also possible to detect evidence of recent translocations among populations. This study suggests that the presence of distinct genetic clusters may enable management of separate genetic units, considering invasive species and game management objectives.
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Kaňuch P, Berggren Å, Cassel-Lundhagen A. A clue to invasion success: genetic diversity quickly rebounds after introduction bottlenecks. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02426-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractOne of the fundamental questions in invasion biology is to understand the genetic mechanisms behind success or failure during the establishment of a species. However, major limitations to understanding are usually a lack of spatiotemporal population data and information on the populations’ colonisation history. In a large-scale, detailed study on the bush-cricket Metrioptera roeselii 70 groups of founders were introduced in areas outside the species’ distribution range. We examined how (1) the number of founders (2–32 individuals), (2) the time since establishment (7 or 15 years after introduction) and (3) possible gene flow affected establishment success and temporal genetic changes of the introduced populations. We found higher establishment success in introductions with larger propagule sizes but genetic diversity indices were only partly correlated to propagule size. As expected, introduced populations were more similar to their founder population the larger the propagule size was. However, even if apparent at first, most of the differentiation in the small propagule introductions disappeared over time. Surprisingly, genetic variability was regained to a level comparable to the large and outbreeding founder population only 15 generations after severe demographic bottlenecks. We suggest that the establishment of these populations could be a result of several mechanisms acting in synergy. Here, rapid increase in genetic diversity of few introductions could potentially be attributed to limited gene flow from adjacent populations, behavioural adaptations and/or even increased mutation rate. We present unique insights into genetic processes that point towards traits that are important for understanding species’ invasiveness.
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4
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Response behaviour of native lizards and invading wall lizard to interspecific scent: implications for invasion success. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Manmade structures are used by an invasive species to colonize new territory across a fragmented landscape. ACTA OECOLOGICA 2019. [DOI: 10.1016/j.actao.2019.103479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Dufresnes C, Dubey S. Invasion genomics supports an old hybrid swarm of pool frogs in Western Europe. Biol Invasions 2019. [DOI: 10.1007/s10530-019-02112-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Dubey S, Lavanchy G, Thiébaud J, Dufresnes C. Herps without borders: a new newt case and a review of transalpine alien introductions in western Europe. AMPHIBIA-REPTILIA 2019. [DOI: 10.1163/15685381-20181028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Biogeographic processes have led to different evolutionary taxa occurring in the northern and southern edges of the Alpine Mountains in Western Europe. The integrity of this diversity is being challenged by frequent human-mediated trans-alpine translocations, sometimes leading to biological invasions. Several alien terrestrial vertebrates of south Alpine origins (Italy, Swiss Ticino) are causing damages to native north Alpine fauna. In this paper, we used molecular tools to characterize the understudied case of the Mediterranean smooth newt (Lissotriton vulgaris meridionalis) expanding in the outskirts of Geneva since its introduction before 1975. Mitochondrial and nuclear DNA sequencing suggest that these exotic populations are a mixture between two diverged L. v. meridionalis lineages from central Italy, and traces of potential hybridization with the native L. v. vulgaris was detected. This situation echoes many other trans-alpine alien introductions. We review all comparable cases of southern to northern Alps introductions in vertebrates, including seven reptiles and four amphibians. The majority of south alpine alien lineages were presumably imported voluntarily by enthusiasts and appear to perform better in the disturbed habitats found in the anthropogenic landscapes of Western Europe compared to their native north Alpine counterparts. Most pose serious threats to related species of similar ecology, through direct competition, predation and introgressive hybridization. Difficulties to detect alien species on time lead to significant conservation costs. Better education together with more appropriate and reactive management plans will be necessary to limit the impact of future alien introductions.
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Affiliation(s)
- Sylvain Dubey
- 1Hintermann & Weber SA, Rue de l’Eglise-Catholique 9b, 1820 Montreux, Switzerland
- 2Department of Ecology & Evolution, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland
| | - Guillaume Lavanchy
- 2Department of Ecology & Evolution, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland
- 3Association de la Grande Cariçaie, Chemin de la Cariçaie 3, 1400 Cheseaux-Noréaz, Switzerland
| | | | - Christophe Dufresnes
- 5Department of Animal & Plant Sciences, University of Sheffield, Alfred Denny Building, Western Bank, Sheffield S10 2TN, UK
- 6Laboratory for Conservation Biology, University of Lausanne, Biophore Building, 1015 Lausanne, Switzerland
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8
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Beninde J, Feldmeier S, Veith M, Hochkirch A. Admixture of hybrid swarms of native and introduced lizards in cities is determined by the cityscape structure and invasion history. Proc Biol Sci 2018; 285:rspb.2018.0143. [PMID: 30051861 DOI: 10.1098/rspb.2018.0143] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/16/2018] [Indexed: 12/15/2022] Open
Abstract
Introductions of non-native lineages increase opportunities for hybridization. Non-native lineages of the common wall lizard, Podarcis muralis, are frequently introduced in cities where they hybridize with native populations. We aimed at unravelling the invasion history and admixture of native and non-native wall lizards in four German cities using citywide, comprehensive sampling. We barcoded and genotyped 826 lizards and tested if gene flow in populations composed of admixed native and introduced lineages is facilitated by similar environmental factors to those in native populations by comparing fine-scale landscape genetic patterns. In cities with non-native lineages, lizards commonly occurred in numerous clusters of hybrid swarms, which showed variable lineage composition, consisting of up to four distinct evolutionary lineages. Hybrid swarms held vast genetic diversity and showed recent admixture with other hybrid swarms. Landscape genetic analyses showed differential effects of cityscape structures across cities, but identified water bodies as strong barriers to gene flow in both native and admixed populations. By contrast, railway tracks facilitated gene flow of admixed populations only. Our study shows that cities represent unique settings for hybridization, caused by multiple introductions of non-native taxa. Cityscape structure and invasion histories of cities will determine future evolutionary pathways at these novel hybrid zones.
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Affiliation(s)
- Joscha Beninde
- Department of Biogeography, Trier University, 54286 Trier, Germany
| | | | - Michael Veith
- Department of Biogeography, Trier University, 54286 Trier, Germany
| | - Axel Hochkirch
- Department of Biogeography, Trier University, 54286 Trier, Germany
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9
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Reconciling the biogeography of an invader through recent and historic genetic patterns: the case of topmouth gudgeon Pseudorasbora parva. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1693-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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10
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Pierce AA, Gutierrez R, Rice AM, Pfennig KS. Genetic variation during range expansion: effects of habitat novelty and hybridization. Proc Biol Sci 2018; 284:rspb.2017.0007. [PMID: 28381622 DOI: 10.1098/rspb.2017.0007] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 03/08/2017] [Indexed: 12/31/2022] Open
Abstract
How species' ranges evolve remains an enduring problem in ecology and evolutionary biology. Species' range limits are potentially set by the inability of peripheral populations to adapt to range-edge habitat. Indeed, peripheral populations are often assumed to have reduced genetic diversity and population sizes, which limit evolvability. However, support for this assumption is mixed, possibly because the genetic effects of range expansion depend on two factors: the extent that habitat into which expansion occurs is novel and sources of gene flow. Here, we used spadefoot toads, Spea bombifrons, to contrast the population genetic effects of expansion into novel versus non-novel habitat. We further evaluated gene flow from conspecifics and from heterospecifics via hybridization with a resident species. We found that range expansion into novel habitat, relative to non-novel habitat, resulted in higher genetic differentiation, lower conspecific gene flow and bottlenecks. Moreover, we found that hybridizing with a resident species introduced genetic diversity in the novel habitat. Our results suggest the evolution of species' ranges can depend on the extent of differences in habitat between ancestral and newly occupied ranges. Furthermore, our results highlight the potential for hybridization with a resident species to enhance genetic diversity during expansions into novel habitat.
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Affiliation(s)
- Amanda A Pierce
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Rafael Gutierrez
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Amber M Rice
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Karin S Pfennig
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599, USA
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11
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Schregel J, Kopatz A, Eiken HG, Swenson JE, Hagen SB. Sex-specific genetic analysis indicates low correlation between demographic and genetic connectivity in the Scandinavian brown bear (Ursus arctos). PLoS One 2017; 12:e0180701. [PMID: 28672045 PMCID: PMC5495496 DOI: 10.1371/journal.pone.0180701] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 06/20/2017] [Indexed: 11/30/2022] Open
Abstract
The degree of gene flow within and among populations, i.e. genetic population connectivity, may closely track demographic population connectivity. Alternatively, the rate of gene flow may change relative to the rate of dispersal. In this study, we explored the relationship between genetic and demographic population connectivity using the Scandinavian brown bear as model species, due to its pronounced male dispersal and female philopatry. Thus, we expected that females would shape genetic structure locally, whereas males would act as genetic mediators among regions. To test this, we used eight validated microsatellite markers on 1531 individuals sampled noninvasively during country-wide genetic population monitoring in Sweden and Norway from 2006 to 2013. First, we determined sex-specific genetic structure and substructure across the study area. Second, we compared genetic differentiation, migration/gene flow patterns, and spatial autocorrelation results between the sexes both within and among genetic clusters and geographic regions. Our results indicated that demographic connectivity was not a reliable indicator of genetic connectivity. Among regions, we found no consistent difference in long-term gene flow and estimated current migration rates between males and females. Within regions/genetic clusters, only females consistently displayed significant positive spatial autocorrelation, indicating male-biased small-scale dispersal. In one cluster, however, males showed a dispersal pattern similar to females. The Scandinavian brown bear population has experienced substantial recovery over the last decades; however, our results did not show any changes in its large-scale population structure compared to previous studies, suggesting that an increase in population size and dispersal of individuals does not necessary lead to increased genetic connectivity. Thus, we conclude that both genetic and demographic connectivity should be estimated, so as not to make false assumptions about the reality of wildlife populations.
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Affiliation(s)
- Julia Schregel
- Norwegian Institute of Bioeconomy Research, NIBIO - Svanhovd, Svanvik, Norway
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, Ǻs, Norway
- * E-mail: (JS); (SBH)
| | - Alexander Kopatz
- Norwegian Institute of Bioeconomy Research, NIBIO - Svanhovd, Svanvik, Norway
| | - Hans Geir Eiken
- Norwegian Institute of Bioeconomy Research, NIBIO - Svanhovd, Svanvik, Norway
| | - Jon E. Swenson
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, Ǻs, Norway
- Norwegian Institute for Nature Research, Trondheim, Norway
| | - Snorre B. Hagen
- Norwegian Institute of Bioeconomy Research, NIBIO - Svanhovd, Svanvik, Norway
- * E-mail: (JS); (SBH)
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12
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Littleford-Colquhoun BL, Clemente C, Whiting MJ, Ortiz-Barrientos D, Frère CH. Archipelagos of the Anthropocene: rapid and extensive differentiation of native terrestrial vertebrates in a single metropolis. Mol Ecol 2017; 26:2466-2481. [DOI: 10.1111/mec.14042] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/12/2016] [Accepted: 01/04/2017] [Indexed: 12/24/2022]
Affiliation(s)
| | - Christofer Clemente
- School of Science and Engineering; University of the Sunshine Coast; Maroochydore DC Qld 4556 Australia
| | - Martin J. Whiting
- Department of Biological Sciences; Macquarie University; Sydney NSW 2109 Australia
| | | | - Celine H. Frère
- School of Science and Engineering; University of the Sunshine Coast; Maroochydore DC Qld 4556 Australia
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13
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Cao LJ, Wang ZH, Gong YJ, Zhu L, Hoffmann AA, Wei SJ. Low genetic diversity but strong population structure reflects multiple introductions of western flower thrips (Thysanoptera: Thripidae) into China followed by human-mediated spread. Evol Appl 2017; 10:391-401. [PMID: 28352298 PMCID: PMC5367077 DOI: 10.1111/eva.12461] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 01/18/2017] [Accepted: 01/20/2017] [Indexed: 01/20/2023] Open
Abstract
Historical invasion scenarios based on observational records are usually incomplete and biased, but these can be supplemented by population genetic data. The western flower thrips (WFT), Frankliniella occidentalis, invaded China in the last 13 years and has rapidly become one of the most serious pests in the country. To assess whether this invasion involved a single event or multiple events, we examined patterns of genetic diversity and population structure of WFT across 12 Chinese populations and a native US population based on mitochondrial DNA and/or 18 microsatellite loci. The average allelic richness and haplotype diversity in Chinese populations were significantly lower than in a population from its native range. The distribution of mitochondrial haplotypes suggested multiple independent invasions of WFT into China, including two invasions into the Beijing region. Based on microsatellite data, two distinct clusters were identified, with both of them splitting further into two clusters; in the Beijing region, the microsatellite data also provided evidence for two introductions. Both the absence of isolation by distance and the fact that distant populations were similar genetically suggest patterns of WFT movement linked to human activities. Our study therefore suggests multiple introductions of WFT into China and human-assisted spread.
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Affiliation(s)
- Li-Jun Cao
- Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China
| | - Ze-Hua Wang
- Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China
| | - Ya-Jun Gong
- Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China
| | - Liang Zhu
- Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China
| | - Ary Anthony Hoffmann
- School of BioSciences Bio21 Institute The University of Melbourne Melbourne Vic. Australia
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection Beijing Academy of Agriculture and Forestry Sciences Beijing China
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14
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Fischer ML, Salgado I, Beninde J, Klein R, Frantz AC, Heddergott M, Cullingham CI, Kyle CJ, Hochkirch A. Multiple founder effects are followed by range expansion and admixture during the invasion process of the raccoon (Procyon lotor) in Europe. DIVERS DISTRIB 2017. [DOI: 10.1111/ddi.12538] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
| | - Iván Salgado
- Departamento de Ecología Evolutiva; Museo Nacional de Ciencias Naturales; Consejo Superior de Investigaciones Científicas; José Gutiérrez Abascal 2 28006 Madrid Spain
| | - Joscha Beninde
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Roland Klein
- Department of Biogeography; Trier University; 54286 Trier Germany
| | - Alain C. Frantz
- Musée National d'Histoire Naturelle; 2160 Luxembourg Luxembourg
| | - Mike Heddergott
- Musée National d'Histoire Naturelle; 2160 Luxembourg Luxembourg
| | | | | | - Axel Hochkirch
- Department of Biogeography; Trier University; 54286 Trier Germany
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15
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Beninde J, Feldmeier S, Werner M, Peroverde D, Schulte U, Hochkirch A, Veith M. Cityscape genetics: structural vs. functional connectivity of an urban lizard population. Mol Ecol 2016; 25:4984-5000. [DOI: 10.1111/mec.13810] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 06/23/2016] [Accepted: 07/19/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Joscha Beninde
- Department of Biogeography; Trier University; Universitätsring 15 54296 Trier Germany
| | - Stephan Feldmeier
- Department of Biogeography; Trier University; Universitätsring 15 54296 Trier Germany
| | - Maike Werner
- Zoological Institute & Museum; Ernst-Moritz-Arndt-Universität Greifswald; Johann Sebastian Bach-Str. 11/12 17487 Greifswald Germany
| | - Daniel Peroverde
- Department of Biogeography; Trier University; Universitätsring 15 54296 Trier Germany
| | - Ulrich Schulte
- Federal Agency for Nature Conservation (BfN); Konstantinstr. 110 53179 Bonn Germany
| | - Axel Hochkirch
- Department of Biogeography; Trier University; Universitätsring 15 54296 Trier Germany
| | - Michael Veith
- Department of Biogeography; Trier University; Universitätsring 15 54296 Trier Germany
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16
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Dudeque Zenni R, Lacerda da Cunha W, Sena G. Rapid increase in growth and productivity can aid invasions by a non-native tree. AOB PLANTS 2016; 8:plw048. [PMID: 27339051 PMCID: PMC4972472 DOI: 10.1093/aobpla/plw048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 06/10/2016] [Indexed: 05/31/2023]
Abstract
Research on biological invasions has produced detailed theories describing range expansions of introduced populations. However, current knowledge of evolutionary factors associated with invasive range expansions, especially those related to rapid evolution of long-lived organisms, is still rudimentary. Here, we used a system of six 40-year-old invasive pine populations that originated from replicated introduction events to study evolution in productivity, growth, and chemical defence traits. We tested the hypotheses that invasive populations were undergoing rapid phenotypic change as populations spread, that populations exhibit trade-offs between evolution in growth and chemical defences, and that rates of rapid evolution in plant growth and productivity effect rates of invasion. Although all invasions started from replicated pools of genetic material and equal propagule pressure, we found divergence in mean values for the six invasive populations in the six traits measured. Not only were there between-population variations but also invasive populations were also rapidly changing along each invasive population expansion. Two populations displayed greater leaf areas (LAs) and smaller specific LAs (SLAs) during range expansion. Four populations had faster growth rates at the leading edge of the invasion front in comparison with plants at the rear edge. In terms of total plant defences, non-volatile resin increased in plants along one invasion gradient and decreased in a second, total needle phenolics increased in plants along one invasion gradient and total wood phenolics increased in plants along the one invasion gradient and decreased in a second. We found no trade-offs between investments in growth and chemical defence. Also, faster rates of change in growth rate and LA were positively associated with greater dispersal distances of invasive populations, suggesting rapid evolution may increase invasiveness. Understanding the roles of both natural and human-mediated ecological and evolutionary processes in population-level dynamics is key to understanding the ability of non-native species to invade.
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Affiliation(s)
- Rafael Dudeque Zenni
- Department of Ecology, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília CEP 70910-900, Brazil
| | - Wanderson Lacerda da Cunha
- Department of Ecology, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília CEP 70910-900, Brazil
| | - Guilherme Sena
- Department of Ecology, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília CEP 70910-900, Brazil
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17
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Pârvulescu L, Pîrvu M, Moroşan LG, Zaharia C. Plasticity in fecundity highlights the females' importance in the spiny-cheek crayfish invasion mechanism. ZOOLOGY 2015; 118:424-32. [PMID: 26358988 DOI: 10.1016/j.zool.2015.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 07/19/2015] [Accepted: 08/26/2015] [Indexed: 11/30/2022]
Abstract
Invasion is one of the most consequential phenomena affecting the distribution of native species. Few in number of species, European crayfish are losing the competition with introduced North American crayfish. The spiny-cheek crayfish, Orconectes limosus, is an outstanding example, successfully competing against the native narrow-clawed crayfish, Astacus leptodactylus. For four years, we collected data regarding crayfish occurrences, their relative abundance, and the structure of populations in the ongoing colonisation process of O. limosus in the lower Danube. The mature females of both invasive and indigenous crayfish species were analysed with respect to biometry and production of oocytes in relation to the dynamics of invasion. The interspecific comparisons showed no significant differences regarding body size, with an average of approximately 102 mm total length and 31 g wet weight for both species. However, the fecundity of the indigenous species was found to be constant throughout the investigated area, whereas the number of eggs produced by the invasive females was significantly increased at the active front of the invasion. The maximum number of ovarian eggs found was 887 and 1156 in the indigenous species and the invasive species, respectively. We propose the scenario that the invasive species, which carries the deadly crayfish plague, creates an ecological advantage by reducing the populations of indigenous crayfish. Subsequently, the invasive females opportunistically use the available resources to enhance their fecundity, resulting in the acute growth of populations. However, the long-term competitiveness and colonisation success of O. limosus still remain in question.
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Affiliation(s)
- Lucian Pârvulescu
- Department of Biology-Chemistry, Faculty of Chemistry, Biology, Geography, West University of Timisoara, 16A Pestalozzi St, 300115 Timisoara, Romania.
| | - Mălina Pîrvu
- Department of Biology-Chemistry, Faculty of Chemistry, Biology, Geography, West University of Timisoara, 16A Pestalozzi St, 300115 Timisoara, Romania
| | - Loredana-Giorgiana Moroşan
- Department of Biology-Chemistry, Faculty of Chemistry, Biology, Geography, West University of Timisoara, 16A Pestalozzi St, 300115 Timisoara, Romania
| | - Claudia Zaharia
- Department of Mathematics, Faculty of Mathematics and Computer Science, West University of Timisoara, V. Parvan Blvd., 300223 Timisoara, Romania
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Pierce AA, Zalucki MP, Bangura M, Udawatta M, Kronforst MR, Altizer S, Haeger JF, de Roode JC. Serial founder effects and genetic differentiation during worldwide range expansion of monarch butterflies. Proc Biol Sci 2015; 281:rspb.2014.2230. [PMID: 25377462 DOI: 10.1098/rspb.2014.2230] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Range expansions can result in founder effects, increasing genetic differentiation between expanding populations and reducing genetic diversity along the expansion front. However, few studies have addressed these effects in long-distance migratory species, for which high dispersal ability might counter the effects of genetic drift. Monarchs (Danaus plexippus) are best known for undertaking a long-distance annual migration in North America, but have also dispersed around the world to form populations that do not migrate or travel only short distances. Here, we used microsatellite markers to assess genetic differentiation among 18 monarch populations and to determine worldwide colonization routes. Our results indicate that North American monarch populations connected by land show limited differentiation, probably because of the monarch's ability to migrate long distances. Conversely, we found high genetic differentiation between populations separated by large bodies of water. Moreover, we show evidence for serial founder effects across the Pacific, suggesting stepwise dispersal from a North American origin. These findings demonstrate that genetic drift played a major role in shaping allele frequencies and created genetic differentiation among newly formed populations. Thus, range expansion can give rise to genetic differentiation and declines in genetic diversity, even in highly mobile species.
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Affiliation(s)
- Amanda A Pierce
- Department of Biology, Emory University, Atlanta, GA 30322, USA
| | - Myron P Zalucki
- School of Biological Sciences, The University of Queensland, Brisbane 4072, Australia
| | - Marie Bangura
- Department of Biology, Emory University, Atlanta, GA 30322, USA
| | - Milan Udawatta
- Department of Biology, Emory University, Atlanta, GA 30322, USA
| | - Marcus R Kronforst
- Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, USA
| | - Sonia Altizer
- Odum School of Ecology, University of Georgia, Athens, GA 30602, USA
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19
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Preuss S, Berggren Å, Cassel-Lundhagen A. Genetic patterns reveal an old introduction event and dispersal limitations despite rapid distribution expansion. Biol Invasions 2015. [DOI: 10.1007/s10530-015-0915-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Michaelides SN, While GM, Zajac N, Uller T. Widespread primary, but geographically restricted secondary, human introductions of wall lizards, Podarcis muralis. Mol Ecol 2015; 24:2702-14. [PMID: 25891955 DOI: 10.1111/mec.13206] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/03/2015] [Accepted: 04/15/2015] [Indexed: 11/30/2022]
Abstract
Establishing the introduction pathways of alien species is a fundamental task in invasion biology. The common wall lizard, Podarcis muralis, has been widely introduced outside of its native range in both Europe and North America, primarily through escaped pets or deliberate release of animals from captive or wild populations. Here, we use Bayesian clustering, approximate Bayesian computation (ABC) methods and network analyses to reconstruct the origin and colonization history of 23 non-native populations of wall lizards in England. Our analyses show that established populations in southern England originate from at least nine separate sources of animals from native populations in France and Italy. Secondary introductions from previously established non-native populations were supported for eleven (47%) populations. In contrast to the primary introductions, secondary introductions were highly restricted geographically and appear to have occurred within a limited time frame rather than being increasingly common. Together, these data suggest that extant wall lizard populations in England are the result of isolated accidental and deliberate releases of imported animals since the 1970s, with only local translocation of animals from established non-native populations. Given that populations introduced as recently as 25 years ago show evidence of having adapted to cool climate, discouraging further translocations may be important to prevent more extensive establishment on the south coast of England.
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Affiliation(s)
- Sozos N Michaelides
- Department of Zoology, Edward Grey Institute, University of Oxford, South Parks Rd, Oxford, OX1 3PS, UK
| | - Geoffrey M While
- Department of Zoology, Edward Grey Institute, University of Oxford, South Parks Rd, Oxford, OX1 3PS, UK.,School of Biological Sciences, University of Tasmania, PO Box 55, Hobart, Tas., 7001, Australia
| | - Natalia Zajac
- Department of Zoology, Edward Grey Institute, University of Oxford, South Parks Rd, Oxford, OX1 3PS, UK
| | - Tobias Uller
- Department of Zoology, Edward Grey Institute, University of Oxford, South Parks Rd, Oxford, OX1 3PS, UK.,Department of Biology, Lund University, Sölvegatan 37, SE 223 62, Lund, Sweden
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Egizi A, Fonseca DM. Ecological limits can obscure expansion history: patterns of genetic diversity in a temperate mosquito in Hawaii. Biol Invasions 2014. [DOI: 10.1007/s10530-014-0710-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Souto-Lima RB, Millien V. The influence of environmental factors on the morphology of red-backed volesMyodes gapperi(Rodentia, Arvicolinae) in Québec and western Labrador. Biol J Linn Soc Lond 2014. [DOI: 10.1111/bij.12263] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Rodrigo B. Souto-Lima
- Redpath Museum; McGill University; 859 Sherbrooke Street West Montreal QC Canada H3A 0C4
| | - Virginie Millien
- Redpath Museum; McGill University; 859 Sherbrooke Street West Montreal QC Canada H3A 0C4
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Zenni RD, Bailey JK, Simberloff D. Rapid evolution and range expansion of an invasive plant are driven by provenance-environment interactions. Ecol Lett 2014; 17:727-35. [DOI: 10.1111/ele.12278] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 03/13/2014] [Accepted: 03/17/2014] [Indexed: 01/11/2023]
Affiliation(s)
- Rafael D. Zenni
- Department of Ecology & Evolutionary Biology; The University of Tennessee; 569 Dabney Hall Knoxville TN 37996 USA
| | - Joseph K. Bailey
- Department of Ecology & Evolutionary Biology; The University of Tennessee; 569 Dabney Hall Knoxville TN 37996 USA
| | - Daniel Simberloff
- Department of Ecology & Evolutionary Biology; The University of Tennessee; 569 Dabney Hall Knoxville TN 37996 USA
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