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Garnier J, Lafontaine P. Dispersal and Good Habitat Quality Promote Neutral Genetic Diversity in Metapopulations. Bull Math Biol 2021; 83:20. [PMID: 33452944 DOI: 10.1007/s11538-020-00853-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 12/28/2020] [Indexed: 11/27/2022]
Abstract
Dispersal is a fundamental and crucial ecological process for a metapopulation to survive in heterogeneous or changing habitats. In this paper, we investigate the effect of the habitat quality and the dispersal on the neutral genetics diversity of a metapopulation. We model the metapopulation dynamics on heterogeneous habitats using a deterministic system of ordinary differential equations. We decompose the metapopulation into several neutral genetic fractions seeing as they could be located in different habitats. By using a mathematical model which describes their temporal dynamics inside the metapopulation, we provide the analytical results of their transient dynamics, as well as their asymptotic proportion in the different habitats. The diversity indices show how the genetic diversity at a global metapopulation scale is preserved by the correlation of two factors: the dispersal of the population, as well as the existence of adequate and sufficiently large habitats. The diversity indices show how the genetic diversity at a global metapopulation scale is preserved by the correlation of two factors: the dispersal of the population as well as the existence of adequate and sufficiently large habitats. Moreover, they ensure genetic diversity at the local habitat scale. In a source-sink metapopulation, we demonstrate that the diversity of the sink can be rescued if the condition of the sink is not too deteriorated and the migration from the source is larger than the migration from the sink. Furthermore, our study provides an analytical insight into the dynamics of the solutions of the systems of ordinary differential equations.
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Affiliation(s)
- Jimmy Garnier
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LAMA, 73000, Chambéry, France.
| | - Pierre Lafontaine
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LAMA, 73000, Chambéry, France
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Bouchard C, Tessier N, Lapointe FJ. Watersheds influence the wood turtle’s (Glyptemys insculpta) genetic structure. CONSERV GENET 2019. [DOI: 10.1007/s10592-019-01169-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Semeñiuk MB, Alcalde L, Sánchez RM, Cassano MJ. An Easy, Cheap, and Versatile Method to Trap Turtles, with Calibrated Sampling Effort. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2017. [DOI: 10.2994/sajh-d-16-00048.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- María B. Semeñiuk
- Sección Herpetología, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Boulevard 120 y 62, CP 1900, La Plata, Buenos Aires, Argentina
| | - Leandro Alcalde
- Sección Herpetología, Instituto de Limnología Dr. R.A. Ringuelet (Consejo Nacional de Investigaciones Científicas y Técnicas-Centro Científico y Tecnológico La Plata). Boulevard 120 y 62, CP 1900, La Plata, Buenos Aires, Argentina
| | - Rocío M. Sánchez
- Sección Herpetología, Instituto de Limnología Dr. R.A. Ringuelet (Consejo Nacional de Investigaciones Científicas y Técnicas-Centro Científico y Tecnológico La Plata). Boulevard 120 y 62, CP 1900, La Plata, Buenos Aires, Argentina
| | - María J. Cassano
- Sección Herpetología, Instituto de Limnología Dr. R.A. Ringuelet (Consejo Nacional de Investigaciones Científicas y Técnicas-Centro Científico y Tecnológico La Plata). Boulevard 120 y 62, CP 1900, La Plata, Buenos Aires, Argentina
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Ciofi C, Levato S, Manfredi T, Natali C, Nazirides T, Tepsich A, Crivelli AJ, Chelazzi G. Patterns of gene flow along linear habitats: population genetics of the European pond turtle (Emys orbicularis) in floodplain ponds. Biol J Linn Soc Lond 2017. [DOI: 10.1093/biolinnean/blw008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Watts AG, Schlichting PE, Billerman SM, Jesmer BR, Micheletti S, Fortin MJ, Funk WC, Hapeman P, Muths E, Murphy MA. How spatio-temporal habitat connectivity affects amphibian genetic structure. Front Genet 2015; 6:275. [PMID: 26442094 PMCID: PMC4561841 DOI: 10.3389/fgene.2015.00275] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/14/2015] [Indexed: 11/13/2022] Open
Abstract
Heterogeneous landscapes and fluctuating environmental conditions can affect species dispersal, population genetics, and genetic structure, yet understanding how biotic and abiotic factors affect population dynamics in a fluctuating environment is critical for species management. We evaluated how spatio-temporal habitat connectivity influences dispersal and genetic structure in a population of boreal chorus frogs (Pseudacris maculata) using a landscape genetics approach. We developed gravity models to assess the contribution of various factors to the observed genetic distance as a measure of functional connectivity. We selected (a) wetland (within-site) and (b) landscape matrix (between-site) characteristics; and (c) wetland connectivity metrics using a unique methodology. Specifically, we developed three networks that quantify wetland connectivity based on: (i) P. maculata dispersal ability, (ii) temporal variation in wetland quality, and (iii) contribution of wetland stepping-stones to frog dispersal. We examined 18 wetlands in Colorado, and quantified 12 microsatellite loci from 322 individual frogs. We found that genetic connectivity was related to topographic complexity, within- and between-wetland differences in moisture, and wetland functional connectivity as contributed by stepping-stone wetlands. Our results highlight the role that dynamic environmental factors have on dispersal-limited species and illustrate how complex asynchronous interactions contribute to the structure of spatially-explicit metapopulations.
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Affiliation(s)
- Alexander G Watts
- Department of Ecology & Evolutionary Biology, University of Toronto Toronto, ON, Canada
| | - Peter E Schlichting
- Department of Natural Resources Management, Texas Tech University Lubbock, TX, USA
| | - Shawn M Billerman
- Department of Zoology and Physiology, University of Wyoming Laramie, WY, USA ; Program in Ecology, University of Wyoming Laramie, WY, USA
| | - Brett R Jesmer
- Department of Zoology and Physiology, University of Wyoming Laramie, WY, USA ; Program in Ecology, University of Wyoming Laramie, WY, USA
| | - Steven Micheletti
- School of Biological Sciences, Washington State University Pullman, WA, USA
| | - Marie-Josée Fortin
- Department of Ecology & Evolutionary Biology, University of Toronto Toronto, ON, Canada
| | - W Chris Funk
- Graduate Degree Program in Ecology, Department of Biology, Colorado State University Fort Collins, CO, USA
| | - Paul Hapeman
- Department of Biology, Central Connecticut State University New Britain, CT, USA
| | - Erin Muths
- Fort Collins Science Center, U.S. Geological Survey Fort Collins, CO, USA
| | - Melanie A Murphy
- Program in Ecology, University of Wyoming Laramie, WY, USA ; Department of Ecosystem Science and Management, University of Wyoming Laramie, WY, USA
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Costa HC, de Rezende DT, Molina FB, Nascimento LB, Leite FS, Fernandes APB. New Distribution Records and Potentially Suitable Areas for the Threatened Snake-Necked TurtleHydromedusa maximiliani(Testudines: Chelidae). CHELONIAN CONSERVATION AND BIOLOGY 2015. [DOI: 10.2744/ccab-14-01-88-94.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hieb EE, Nelson DH, Morris AB. Genetic monitoring reveals loss of microsatellite diversity in a breeding population of the endangered Alabama red-bellied turtle. ENDANGER SPECIES RES 2014. [DOI: 10.3354/esr00581] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Famelli S, Bertoluci J, Molina FB, Matarazzo-Neuberger WM. Structure of a Population ofHydromedusa maximiliani(Testudines, Chelidae) from Parque Estadual da Serra do Mar, an Atlantic Rainforest Preserve in Southeastern Brazil. CHELONIAN CONSERVATION AND BIOLOGY 2011. [DOI: 10.2744/ccb-0841.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Clavijo-Baquet S, Loureiro M, Achaval F. Morphological Variation in the South American Snake-Necked Turtle Hydromedusa tectifera (Testudines: Chelidae). CHELONIAN CONSERVATION AND BIOLOGY 2010. [DOI: 10.2744/ccb-0804.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Souza FL, Raizer J, da Costa HTM, Martins FI. Dispersal of Phrynops geoffroanus (Chelidae) in an Urban River in Central Brazil. CHELONIAN CONSERVATION AND BIOLOGY 2008. [DOI: 10.2744/ccb-0698.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Directional gene flow patterns in disjunct populations of the black ratsnake (Pantheropis obsoletus) and the Blanding’s turtle (Emydoidea blandingii). CONSERV GENET 2008. [DOI: 10.1007/s10592-008-9607-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fagundes CK, Bager A. Ecologia reprodutiva de Hydromedusa tecifera (Testudines: Chelidae) no sul do Brasil. BIOTA NEOTROPICA 2007. [DOI: 10.1590/s1676-06032007000200021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Existem poucos dados na literatura sobre a reprodução de Hydromedusa tectifera (Chelidae), e estes se referem a indivíduos de cativeiro. A ecologia reprodutiva da espécie foi verificada através de monitoramentos não sistemáticos entre 1996 e 2002 na Estação Ecológica do Taim, no extremo sul do Brasil, com a intenção de reunir informações sobre a reprodução da espécie em ambiente natural. Foram encontrados 46 ninhos da espécie, entre intactos e predados. As ninhadas tiveram, em média, 11,6 ovos que apresentaram um tamanho médio de 36,5 x 23,9 mm. A média do peso dos ovos foi de 11,1 g e o seu volume individual resultou em uma média de 10148,31 mm³. Os ninhos alcançaram uma profundidade média de 11,1 e 5,8 cm da superfície ao primeiro ovo. A variação do volume dos ovos de um mesmo ninho foi menor (CV = 4,71%) do que entre diferentes ninhos (CV = 12,32%). A largura dos ovos foi positivamente dependente do seu comprimento. Já em uma mesma ninhada, o número de ovos não dependeu do seu tamanho e do seu volume. Foram observadas desovas nos meses de novembro e dezembro, mas a maioria delas ocorreu na segunda quinzena de novembro. A espécie desovou com maior freqüência no período das 18 às 20 horas, e em áreas com certa inclinação do substrato, entre 20° e 30° de declividade. A maior abundância de ninhos foi observada até 5 m de distância da lagoa. Os resultados encontrados demonstram congruência entre os dados obtidos para H. tectifera e aqueles existentes para cágados-de-pescoço-comprido da Austrália e para as espécies de Chelidae do extremo sul do Brasil.
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Affiliation(s)
| | - Alex Bager
- Universidade Estadual do Rio Grande do Sul, Brasil
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