scholarly journals New, Rare and Constant Habitats for Endangered Aquatic Plant Communities: The Importance of Microhabitats for Global biodiversity

Diversity ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 96 ◽  
Author(s):  
Krzysztof Spałek ◽  
Jarosław Proćków

Natural water reservoirs are very valuable floristic sites, with springs particularly important for the preservation of floral biodiversity. This paper presents, as a case study, a community of water plants that is new to limnocrene karst springs in Europe: Potametum alpini (Potametea), found in Poland. The paper provides the floristic composition and ecological requirements of this plant association, which is rare and endangered in Europe. According to our knowledge, the habitat data presented here are unique as they are published for the first time for this plant community, and thus it is currently not possible to compare them with data from other authors. Our study confirms the importance of rare microhabitats for global biodiversity. Research on as yet unknown physical and chemical factors limiting the range and development of patches of different plant associations should be conducted intensively, because plant communities, including rare, endangered and protected examples, are an important element of biodiversity at both continental and local scales. All the issues discussed in the paper (rare microhabitats, endangered aquatic plant communities, global biodiversity) are important because they are related to the conservation and management of inland waters.

2011 ◽  
Vol 72 (4) ◽  
pp. 347-350 ◽  
Author(s):  
Krzysztof Spałek ◽  
Arkadiusz Nowak

The paper presents a rush community new to Poland - <em>Scirpetum radicantis </em>Hejny in Hejny et Husak 1978 em. Zahlh. 1979, belonging to the <em>Phragmition </em>alliance. It was discovered in fishponds near Olesno in Silesia (SW Poland). The floristic composition and the ecological requirements of this association are presented in the paper. <em>Scirpetum radicantis </em>is considered to be a very rare and endangered plant community in Europe.


2012 ◽  
Vol 40 (2) ◽  
pp. 22 ◽  
Author(s):  
Francisco GOMEZ MERCADO ◽  
Esther GIMENEZ LUQUE ◽  
Enrique LOPEZ CARRIQUE ◽  
Sergio DE HARO LOZANO ◽  
Fernando DEL MORAL TORRES

The Guadiamar riverbanks are home to riparian plant communities, such as alder, poplar and ash forests, tamujares, salt marshes,reed beds, etc. characteristic of Mediterranean rivers. A data set of these communities, including floristic relevés and environmentalvariables (physical and chemical soil properties, bioclimate) was analysed to correlate their floristic composition/species distributionwith environmental variables. By means of an RDA (redundancy analysis) and a complementary cluster analysis four groups of specieswere discriminated according to their ecological requirements. The RDA displayed three major, parallel-running gradients (i.e., textural,bioclimatic and chemical) in environmental variables. Other less conspicuous, crossed gradients revealed the impact of man-madealterations, particularly in the middle reaches of the river. The results can be helpful in the planning of future ecologically orientedrestoration programmes of wetlands.


2011 ◽  
Vol 76 (1) ◽  
pp. 81-84
Author(s):  
Krzysztof Spałek

The paper presents a water plant community new to Poland - <em>Nymphaeetum albae</em> Vollmar 1947 em. Oberd. in Oberd. et al. 1967, belonging to the i class. It was discovered in fishponds in Pokój near Namysłów, Lasowice Małe near Kluczbork and small ponds in Staniszcze Małe near Opole in Silesia (SW Poland). Floristic composition and ecological requirements of this association are presented in the paper. <em>Nymphaeetum albae</em> is considered to be a rare and endangered plant community in Europe.


2011 ◽  
Vol 75 (3) ◽  
pp. 253-256 ◽  
Author(s):  
Krzysztof Spałek

The paper presents the distribution, floristic composition and ecological requirements of the pleustonic plant community <em>Utricularietum australis</em> Th. Müller et Görs 1960 in Poland. The association was classifield to the Lemnetea minoris class. <em>Utricularietum australis</em> is considered to be a rare and endangered plant community in Europe.


2013 ◽  
pp. 86-105 ◽  
Author(s):  
G. S. Shushpannikova ◽  
S. M. Yamalov

Syntaxonomic variety of the meadow vegetation of the order Molinietalia of the Vychegda and Pechora rivers’ floodplains (Komi Republic) presented by 2 unions, 6 associations, 7 subassociations and 9 variants, including 5 new associations. They are Bromopsido inermis–Alopecurietum pratensis, Bistorto majoris–Alopecuretum pratensis, Alopecuro pratensis–Calamagrostidetum purpureae, Alopecurо pratensis–Deschampsietum cespitosae, Filipendulo ulmariae–Deschampsietum cespitosae. Most plant associations are heterogeneous in floristic composition and they can be divided into 4 subassociations and 9 variants. The peculiarities of the floristic composition of the above mentioned associations, as well as their distribution and ecology are discussed. A comparison of plant communities of the Vychegda and Pechora river floodplains with communities described in other regions of the Eastern Europe and the Asian part of Russia was carried out.


2018 ◽  
Vol 77 (2) ◽  
pp. 152-160 ◽  
Author(s):  
Rena Hüseyinova ◽  
Erkan Yalçin

AbstractIn this study, the subalpine vegetation in the Giresun Mountains of northern Turkey was investigated. The study area included north- and south-facing slopes at altitudes ranging betweenc.2000 and 2500 meters. For vegetation classification and for describing the relationships between vegetation and environment, traditional Braun-Blanquet methods and multivariate analysis techniques were used. The vegetation mainly consisted of subalpine grasslands and coniferous cushion scrubs.Caricetea curvulaeandAstragalo microcephali-Brometea tomentelliwere found to be dominant syntaxa in the vegetation of the study area. Land topography, soil physical and chemical factors and species richness have important impacts on the development of subalpine vegetation according to the results of multivariate analysis. Three associations and two subassociations were newly determined and classified. Hemicryptophytes, chamaephytes and geophytes participated in the floristic composition of these syntaxa. EUNIS habitat code and names for described syntaxa were also proposed.


2017 ◽  
Vol 78 (4) ◽  
pp. 285-296 ◽  
Author(s):  
Natalia Czapiewska ◽  
Sonia Paź ◽  
Marcin K. Dyderski ◽  
Andrzej M. Jagodziński

Abstract One of the crucial debates in vegetation ecology is whether plant communities are discontinuous, distinguishable units or whether they change continuously. Phytosociology assumes discontinuity and its methodology requires subjective sampling during vegetation inventories. For that reason, some researchers argue that phytosociology artificially creates discontinuity among plant communities. Our aim was to assess the continuity between ash-alder riparian forest (Fraxino-Alnetum), and alder swamp forest (Carici elongatae-Alnetum), and to check whether discontinuity observed between these two plant associations is an effect of subjective sample plot choice. We conducted 57 phytosociological relevés within a regular grid covering potential sites of both plant communities. All relevés were arranged in order of decreasing relative cover of the diagnostic species for each plant association resulting in a gentle gradient, indicating a continuous transition from Fraxino-Alnetum to Carici elongatae-Alnetum. Similar results were obtained by detrended correspondence analysis. The proportion of species from the Querco-Fagetea class, typical to Fraxino-Alnetum, was decreasing with increasing proportion of species from the Alnetea glutinosae class, typical to Carici elongatae-Alnetum. This shift followed a gradient of ecological light-moisture indicator values. Our results confirmed continuous transition between two plant communities and led us to the conclusion that discontinuity resulted from the standard sampling protocol used in classical phytosociology. This protocol, however, is useful in searching for typological patterns, required for classification of plant communities, which is the main aim of phytosociology. Nevertheless, it does not provide full insight into the variability of vegetation and introduces uncertainty when trying to understand ecosystem dynamics. This uncertainty should be taken into account when phytosociological data are used for nature conservation recommendations and to draw conclusion about vegetation dynamics.


2011 ◽  
Vol 77 (4) ◽  
pp. 339-343 ◽  
Author(s):  
Krzysztof Spałek

This paper presents the distribution, floristic composition and ecological requirements of the water plant community <em>Nymphaeetum candidae</em> Miljan 1933, belonging to the <em>Potametea</em> class. Until present this community has been reported only from north-eastern Poland. During present studies it was stated also in the south-western part of the country. <em>Nymphaeetum candidae</em> is considered to be a rare and endangered plant community in several countries of Central Europe.


2013 ◽  
Vol 43 (1-2) ◽  
pp. 183-199
Author(s):  
Maria Jędruszczk

This part of a series of paper presents a comparative characterization of selected stubble-field plant communities described in parts I-III. It encompasses the most important characteristic of the communities as well as the habitas in which they occur. In the differentiated climatically, geomorphologically, hydrologically and, most of all, in respect to soil type conditions of mideastern Poland, more precisely in the old limits of the Lublin voivodship, 6 types of stubble-field plant communities have been described and further classified into subunits; all of which have been isolated on the basis of the floristic composition of 330 analysed phytosociologocal records. The selected stubble-field plant communities were assigned to the suborder <i>Polygono-Chenopodietalia</i>. Among them, 3 plant associations known from root crop fields were identified: 2 belonging to the alliance <i>Panico-Setarion</i> (<i>Digitarietum ischaemi</i> and <i>Echinochloo-Setarietum</i>) and 1 belonging to <i>Eu-Polygono-Chenopodion</i> (<i>Oxalido-Chenopodietum polyspermi</i>). On most of the grain stubble-field of the Lublin region (almost 77% of the records) communities were found which could be assigned only to the alliances: community <i>Setaria glauca-Scleranthus annuus</i> to <i>Panico-Setarion</i>, community <i>Veronica persica-Sonchus asper</i> to </i>Eu-Polygono-Chenopodion</i> and community <i>Rorippa sylvestris-Oxalis stricta</i> which is an intermediate from between these alliances. The floristic types identified here, as well as their lower rancs (subassocietions variants, subvariants) were a reflection of the mechanical composition, nutritional, hydrological and pH conditions of the soils in their habitas and confirmed the high differentiation of soil conditions over the studied area.


2014 ◽  
Vol 55 (1) ◽  
pp. 141-157 ◽  
Author(s):  
Stanisław Kłosowski ◽  
Henryk Tomaszewicz

Comparison of habitats of <em>Polygonetum natantis</em> Soó 1927 and <em>Potamogetonetum natantis</em> Soó 1927 phytocenoses as regards physical and chemical properties of the water and substrate demonstrated that the habitat requirements of both these communities are different. <em>Polygonetum natantis</em> phytocenoses indicate a substrate poor in nutrient components and rich waters, whereas <em>Potamogetonetum natantis</em> patches, on the contrary, are evidence of fertile substrate and waters poor in biophilous components. The differences in habitat conditions demonstrated between the examined communities confirm the correctness of narrow classification of aquatic plant communities, based on floristic dominance.


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