Distribution et régression de la petite massette (Typha minima) dans les Alpes

Prunier, Patrice; Garraud, Luc; Kohler, Caroline; Lambelet-Haueter, C.; Selvaggi, A.; Werner, Philippe

doi:10.1007/s00035-010-0073-1

Cited by 10 publications

(3 citation statements)

References 11 publications

(7 reference statements)

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“…The dwarf bulrush ( Typha minima ) is an endangered pioneer plant species of riparian flood plains. T. minima was once widespread along braided rivers of Europe and central Asia, but is now threatened with extinction: its European distribution is limited to a few rivers in the Alps (Müller, ; Prunier et al ., ).…”

Section: Methodsmentioning

confidence: 97%

Lessons learned from microsatellite development for nonmodel organisms using 454 pyrosequencing

Schoebel

Brodbeck

Buehler

et al. 2013

J of Evolutionary Biology

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Microsatellites, also known as simple sequence repeats (SSRs), are among the most commonly used marker types in evolutionary and ecological studies. Next Generation Sequencing techniques such as 454 pyrosequencing allow the rapid development of microsatellite markers in nonmodel organisms. 454 pyrosequencing is a straightforward approach to develop a high number of microsatellite markers. Therefore, developing microsatellites using 454 pyrosequencing has become the method of choice for marker development. Here, we describe a user friendly way of microsatellite development from 454 pyrosequencing data and analyse data sets of 17 nonmodel species (plants, fungi, invertebrates, birds and a mammal) for microsatellite repeats and flanking regions suitable for primer development. We then compare the numbers of successfully lab-tested microsatellite markers for the various species and furthermore describe diverse challenges that might arise in different study species, for example, large genome size or nonpure extraction of genomic DNA. Successful primer identification was feasible for all species. We found that in species for which large repeat numbers are uncommon, such as fungi, polymorphic markers can nevertheless be developed from 454 pyrosequencing reads containing small repeat numbers (five to six repeats). Furthermore, the development of microsatellite markers for species with large genomes was also with Next Generation Sequencing techniques more cost and time-consuming than for species with smaller genomes. In this study, we showed that depending on the species, a different amount of 454 pyrosequencing data might be required for successful identification of a sufficient number of microsatellite markers for ecological genetic studies.

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Section: Methodsmentioning

confidence: 97%

Lessons learned from microsatellite development for nonmodel organisms using 454 pyrosequencing

Schoebel

Brodbeck

Buehler

et al. 2013

J of Evolutionary Biology

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“…The Dwarf bulrush (Typha minima Hoppe) is a clonal pioneer plant species growing on gravel bars and riverbanks (Csencsics et al 2008;Prunier et al 2010;Jaunatre et al 2018). Over the last century, T. minima has suffered a drastic decline, estimated at 85% in the Alps, due to river containment and floodplain drainage (Prunier et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Optimization of restoration techniques: In-situ transplantation experiment of an endangered clonal plant species (Typha minima Hoppe)

Popoff

Jaunatre²,

Bouteiller³

et al. 2021

Ecological Engineering

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In the current context of biodiversity erosion, ecological restoration is sometimes the only way to reinforce plant population and preserve them from the deterioration of their natural habitat. Dwarf bulrush (Typha minima Hoppe) is an endangered pioneer clonal plant, which grows in frequently disturbed habitats along Eurasian temperate piedmont rivers. In the Alps, its population has decreased by 85% over the last century and numerous pressures (e.g. river works) continue to threaten its remnants. The main objective of this study is to identify an adapted ecological engineering protocol for field transplantation of T. minima in order to maximize restoration success. Several transplantation experiments were implemented between 2013 and 2016 along a French alpine river, the Isère. Five distinct transplantation protocols were tested by individually varying the following parameters: bank type (redesigned bank and embankment protection), transplantation height above water level (5 levels between +0.45 m and + 1.55 m above the average water level), initial biomass transplanted (high, medium and low), initial plot shape (linear strip or square plots) and species association (without or with Salicaceae or Poaceae). During the first two or three years, several clonal traits relative to the spatial monopolization and colonization abilities of T. minima were monitored and analyzed. Our analysis showed that T. minima's ability to colonize was optimal on natural banks, at medium transplantation heights and in linear strip plots. In addition, spatial monopolization and colonization speed, through both sexual and vegetative reproduction, were maximized with a higher initial biomass. Lastly, species association did not affect the colonization ability of T. minima. Our study provides valuable information for future conservation plans and restoration projects for T. minima.

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“…Ainsi, cette étude vise à cerner précisément les conditions écologiques (pédologie, hydrologie, espèces compagnes) permettant la survie de la petite massette dans un contexte de régression des populations due à l'altération profonde de son habitat (Csencsics et al 2008;Prunier et al 2010). L'identification des espèces compagnes représente une opportunité pour identifier les sites propices à la réintroduction de cette espèce.…”

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Espèces caractéristiques et positionnement syntaxonomique des communautés à petite massette (Typha minima): une contribution au choix des sites de réintroduction d’une espèce alluviale menacée

Prunier¹,

Kohler²,

Lambelet

et al. 2010

Bot. Helv.

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La petite massette (Typha minima Hoppe) est sujette à une raréfaction dans toute l'Europe. Dans ce contexte, la connaissance précise de sa niche écologique apparaît cruciale pour conduire à bien des opérations conservatoires (renforcement et réintroduction de populations, restauration de cours d'eau). Cette étude a pour objectif principal d'identifier les conditions écologiques (pédologie, hydrologie et espèces compagnes) favorables au développement de cette espèce. Elle s'appuie sur l'analyse de dix stations naturelles situées le long de trois rivières des Alpes nord-occidentales (Arc, Arve et Giffre). Les résultats de ces observations font état de la présence de la petite massette au sein de deux associations différentes, au cortège végétal composite, associant des espèces rudé-rales, prairiales et alluviales. Ils confirment que l'humidité et la nature carbonatée et sablo-limoneuse du substrat favorisent l'espèce. Ils identifient par ailleurs la mise en place d'une succession végétale différente sur les stations submontagnarde et planitiaire. Enfin, ils suggèrent de reconsidérer le positionnement synsystématique de l'association à petite massette et prêle panachée (EquisetoTyphetum minimae) au sein d'un syntaxon morainique et alluvial, l'Epilobion fleischeri, et de s'appuyer sur certaines espèces compagnes telles Salix triandra ou Calamagrostis pseudophragmites pour identifier des sites adaptés à d'éventuels projets de réintroduction de cette espèce.Mots clés Phytosociologie Á Typhaceae Á Espèce menace Á É cologie alluviale Á Conservation Characteristic species and syntaxonomic position of plant communities with Typha minima in the Alps: a contribution to the choice of restoration sites for a threatened species Abstract Dwarf bulrush (Typha minima Hoppe) is declining throughout Europe. A precise knowledge of its ecological niche is required for successful conservation measures, such as the re-introduction or enhancement of populations and river restoration projects. The aim of this study was to identify ecological conditions (soil types, hydrology, vegetation composition) favourable to the establishment of this species through the analysis of ten natural sites along three rivers in the north-western Alps. Dwarf Bulrush was present in two different plant community types, which both included a mixture of ruderal, alluvial and meadow species. Successional pathways were found to differ between montane and lowland sites. Soils were moist, carbonate-rich and sandy to loamy. Results suggest reconsidering the syntaxonomic position of the association Equiseto-Typhetum minimae and placing it within the morainic and alluvial alliance Epilobion fleischeri. Furthermore, frequent companion species, such as Responsible editor: Sabine Güsewell.Matériel électronique supplémentaire La version en ligne de cet article (doi:10.1007/s00035-010-0078-9) contient du matériel supplémentaire qui est accessible aux utilisateurs autorisés.

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Distribution et régression de la petite massette (Typha minima) dans les Alpes

Cited by 10 publications

References 11 publications

Lessons learned from microsatellite development for nonmodel organisms using 454 pyrosequencing

Lessons learned from microsatellite development for nonmodel organisms using 454 pyrosequencing

Optimization of restoration techniques: In-situ transplantation experiment of an endangered clonal plant species (Typha minima Hoppe)

Espèces caractéristiques et positionnement syntaxonomique des communautés à petite massette (Typha minima): une contribution au choix des sites de réintroduction d’une espèce alluviale menacée

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