Genetic diversity of riverine reed stands indicating the water regime of the habitat

Engloner, Attila; Szegő, Dóra

doi:10.1016/j.ecolind.2015.10.037

Cited by 7 publications

(6 citation statements)

References 16 publications

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“…At both water bodies, 300–500‐m‐long sectors of reed stands were studied, following the sampling design described by Engloner and Szegő (). In the present study, the open water edge of reed stands located parallel to the bank were sampled.…”

Section: Methodsmentioning

confidence: 99%

“…At both water bodies, 300-500-m-long sectors of reed stands were studied, following the sampling design described by Engloner and Szegő (2016) October 2017, following Rusznyák et al (2008). Water samples were collected in sterile 250-ml glass containers by immersion from the water body in front of the reed sampling points.…”

Section: Study Sites Sampling and Sample Preparationmentioning

confidence: 99%

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Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Borsodi

Anda

Krett

et al. 2020

River Research & Apps

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As the submerged shoot parts of common reed (Phragmites australis) can provide large surfaces for biofilm‐forming bacteria, extensive reed stands can effectively contribute to the self‐purification in the littoral zones of freshwaters. However, bacterial biofilm developed on reed surfaces have been studied only in still waters. In the present study, comparative examinations were performed on the planktonic and reed biofilm bacterial communities from two different riverine water bodies. Water and reed biofilm samples were taken at the beginning and end of the vegetation period from (a) a regulated side arm and (b) a separated oxbow of River Danube. Besides measuring physical and chemical environmental variables, planktonic bacterial cell numbers were detected by 4′,6‐diamidino‐2‐phenylindole staining method, and the bacterial communities were compared by denaturing gradient gel electrophoresis. Our results demonstrated that the structure and composition of bacterial communities correlated with different environmental variables and were different regarding both the habitats (planktonic vs. reed biofilm) and the types of riverine water bodies. The seasonal differences in the bacterial community structures were smaller in the river side arm than in the separated oxbow. In the water column, representatives of widespread and typical freshwater planktonic bacteria (“Candidatus Planktophila,” Limnohabitans, and Polynucleobacter), whereas, in the reed biofilm samples, phototrophic and plant associated bacteria were identified.

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Section: Methodsmentioning

confidence: 99%

Section: Study Sites Sampling and Sample Preparationmentioning

confidence: 99%

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Borsodi

Anda

Krett

et al. 2020

River Research & Apps

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“…Trin. ex Steudel) is a habitat-forming species in aquatic ecosystems that serves important functions such as stabilization and protection of the shore, removing significant amounts of pollutants from agricultural runoffs and providing food and a home to animals and other organisms [11,12]. Common reed is widespread all over the planet along riverbanks and lakeshores on all continents except Antarctica [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Anthropogenic Impacts on the Genetic Diversity of Phragmites australis in Small-River Habitats

Patamsytė,

Lambertini,

Butkuvienė

et al. 2023

Diversity

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Common reed is often used as a model plant to study the anthropogenic impacts on ecosystems at local and global scales. As a community-forming species, it is directly exposed to the impacts of human activities on the ecosystem. The aim of our study was to evaluate the patterns of genetic diversity in common reed stands located in habitats that are differently affected by anthropogenic factors. We studied whether riverbed modifications, land cover in the neighborhood of the stand and the chemical and physical parameters of the river water affect the genetic diversity of P. australis at the studied sites. Using DNA fingerprinting, we genotyped 747 plants from 42 sites located in 16 small Lithuanian rivers. Bayesian clustering and principal coordinate analysis revealed two main gene pools at the population (river) level. At the site level (i.e., considering all sites independently of their rivers), polymorphism was high even between sites in the same river. Our study revealed a negative relationship between the concentration of nitrogen compounds and the genotypic richness of P. australis populations. We did not find any correlations between the other chemical parameters of the water and the parameters of the genetic diversity. Additionally, there were no genetic differences between sites in modified and unmodified river sections or between sites that differed in land cover type in the neighborhood of the stand.

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“…As a result, many areas infested by nonnative common reed exhibit a surprisingly high level of genetic diversity (Table 4). In a given area, there may be patches reproducing clonally, but the patches tend to be differentiated and are generally thought to arise from seed (Albert et al 2015;Engloner and Szegö 2016;McCormick et al 2010). Furthermore, there is evidence of hybridization with native biotypes (Wu et al 2015) and plasticity via stress-inducible genotypes that tolerate varying salinity levels found in different environments (Nada et al 2015).…”

Section: )mentioning

confidence: 99%

“…However, extremes in climate, particularly changes in flooding regimes, interact with the ecosystem resistance factor by reducing dominance of other wetland plant species (Carlson-Mazur et al 2014;Tougas-Tellier et al 2015). The third major factor, fitness, can influence how different genotypes of nonnative common reed may arise during the invasion process (Engloner and Szegö 2016;Jeon et al 2015). Interactions among the three factors in the framework indicate that as habitats change, either through climate change or other anthropogenic manipulations, nonnative common reed is capable of invading by establishing local dominance in areas where other plant species formerly existed.…”

Section: )mentioning

confidence: 99%

Climate Dynamics, Invader Fitness, and Ecosystem Resistance in an Invasion-Factor Framework

Young

Clements

DiTommaso

2017

Invasive plant sci. manag.

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As researchers and land managers increasingly seek to understand plant invasions and the external (climate) and internal (plant genetics) conditions that govern the process, new insight is helping to answer the elusive question of what makes some invasions successful and others not. Plant invasion success or failure is based on a combination of evolutionary and ecological processes. Abiotic (e.g., climate) and biotic (e.g., plant competition) conditions in the environment and plant genetics (e.g., fitness) combine in either decreasing or increasing invasion, yet it has proven challenging to know exactly which of these conditions leads to success for a given species, even when a wealth of empirical data is available. Further, current regional distribution models for invasive plant species rarely consider biotic and fitness interactions, instead focusing primarily on abiotic conditions. The crucial role of all three factors (climate dynamics, invader fitness, and ecosystem resistance) must not be ignored. Here we construct a three-factor invasion framework from which we develop conceptual models using empirical studies for yellow starthistle, nonnative common reed, and musk thistle, three dissimilar but commonly occurring invasive plant species in North America. We identify how components of the invasion process-rapid population increase, established local dominance, and rapid range expansion-are influenced by ecosystem resistance, invader fitness, and/or climate dynamics, a set of broadly defined factors for each of the three invasive plant species. Our framework can be used to (1) establish research priorities, (2) address gaps in theoretical understanding, and (3) identify invasion process components that can be targeted to improve management. Building on previous models, our unifying framework, which can be used for assessing any invasive plant species having sufficient empirical data, simultaneously shows the influence of ecosystem resistance, invader fitness, and climate dynamics factors on the invasion process. Nomenclature: Common reed, Phragmites australis (Cav.) Trin. ex Steud.; musk thistle, Carduus nutans L.; yellow starthistle, Centaurea solstitialis L.

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Genetic diversity of riverine reed stands indicating the water regime of the habitat

Cited by 7 publications

References 16 publications

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Assessment of Anthropogenic Impacts on the Genetic Diversity of Phragmites australis in Small-River Habitats

Climate Dynamics, Invader Fitness, and Ecosystem Resistance in an Invasion-Factor Framework

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