Exploring biodiversity in riparian corridors of a Mediterranean island: Plant communities and environmental parameters in Cyprus rivers

2014 ◽  
Vol 150 (1) ◽  
pp. 91-103 ◽  
Author(s):  
E. Papastergiadou ◽  
K. Stefanidis ◽  
G. Dorflinger ◽  
E. Giannouris ◽  
K. Kostara ◽  
...  
Keyword(s):  
Plant Communities ◽  
Environmental Parameters ◽  
Riparian Corridors ◽  
Mediterranean Island

scholarly journals A phytosociological survey of aquatic vegetation in the main freshwater lakes of Greece

2020 ◽  
Vol 1 ◽  
pp. 53-75
Author(s):  
Dimitrios Zervas ◽  
Ioannis Tsiripidis ◽  
Erwin Bergmeier ◽  
Vasiliki Tsiaoussi
Keyword(s):  
Plant Communities ◽  
Aquatic Plant ◽  
Aquatic Vegetation ◽  
Environmental Parameters ◽  
Hierarchical Cluster ◽  
Freshwater Lake ◽  
Vegetation Types ◽  
Freshwater Lakes ◽  
Lake Ecosystems ◽  
The Relationship

Aims: This study aims to contribute to the knowledge of European freshwater lake ecosystems with updated and new information on aquatic plant communities, by conducting national-scale phytosociological research of freshwater lake vegetation in Greece. Moreover, it investigates the relationship between aquatic plant communities and lake environmental parameters, including eutrophication levels and hydro-morphological conditions. Study area: Lakes in Greece, SE Europe. Methods: 5,690 phytosociological relevés of aquatic vegetation were sampled in 18 freshwater lake ecosystems during 2013–2016. The relevés were subjected to hierarchical cluster and indicator species analyses in order to identify associations and communities of aquatic vegetation, as well as to describe their syntaxonomy. Multiple regression analysis was applied to investigate the relationship between vegetation syntaxa and environmental parameters of lakes, i.e. physico-chemical parameters and water level fluctuation. Results: Ninety-nine plant taxa belonging to 30 different families were recorded. Forty-six vegetation types were identified and described by their ecological characteristics, diagnostic taxa and syntaxonomical status. Thirteen vegetation types, the largest number belonging to the vegetation class Charetea, are considered to be new records for Greece. The distribution of the vegetation types recorded in the 18 freshwater lakes was found to depend on environmental parameters and levels of eutrophication. Conclusions: An updated aquatic vegetation inventory was produced for Greek lakes, and primary results showed that the presence/absence of aquatic plant communities and the community composition in freshwater lakes can be utilized to assess the pressure of eutrophication on lake ecosystems. Taxonomic reference: Euro+Med (2006–). Abbreviations: MNT = Mean number of taxa; WFD = Water Framework Directive.

The effect of harsh abiotic conditions on the diversity of serpentine plant communities on Lesbos, an eastern Mediterranean island

2013 ◽  
Vol 7 (3) ◽  
pp. 433-444 ◽  
Author(s):  
George C. Adamidis ◽  
Elena Kazakou ◽  
Alan J.M. Baker ◽  
Roger D. Reeves ◽  
Panayiotis G. Dimitrakopoulos
Keyword(s):  
Plant Communities ◽  
Eastern Mediterranean ◽  
Abiotic Conditions ◽  
Mediterranean Island

Wet meadows of the alliance Molinion and their environmental gradients in Slovenia

Biologia ◽  
2008 ◽  
Vol 63 (2) ◽  
Author(s):  
Igor Zelnik ◽  
Andraž Čarni
Keyword(s):  
Plant Communities ◽  
Environmental Gradients ◽  
Environmental Parameters ◽  
Nutrient Status ◽  
Soil Parameters ◽  
Soil Reaction ◽  
Mean Annual Temperature ◽  
Wet Meadow ◽  
Organic C ◽  
Temperature And Precipitation

AbstractThe main objective of this study was to examine the relationships between wet meadow plant communities of Molinon alliance and their environmental conditions in Slovenia. The ecology of these communities was analysed in detail. The study provides the data on the vegetation and environmental parameters, the significance of parameters for the plant species composition, most important environmental gradients and differences between plant communities. In all plots the vegetation was recorded and soil parameters were analysed (pH, plant-available P and K, Nt, organic C, C/N ratio, exchangeable Ca2+, Mg2+, K+, Na+, H+, electrical conductivity, base saturation). Other conditions were also considered (e.g., mean annual temperature and precipitation, humidity index, mean Ellenberg moisture and nutrient value) to test possible correlations as well. Vegetation was classified by means of multivariate cluster analysis, while vegetation-site relationships were examined with direct gradient analysis (CCA). Six associations from the Molinon alliance (Selino-Molinietum, Plantagini altissimae-Molinietum, Carici davallianae-Molinietum, Gentiano-Molinietum litoralis, Junco conglomerati-Betonicetum and Sanguisorbo-Festucetum commutatae) were identified and analysed. Soil reaction was identified as most significant environmental parameter explaining the variation of the studied vegetation. There are several statistically significant differences in site conditions between the communities (pH, moisture, nutrient status, Ca2+). The studied associations represent clearly defined ecological units.

Are plant communities mainly determined by anthropogenic land cover along urban riparian corridors?

2016 ◽  
Vol 19 (4) ◽  
pp. 1767-1786 ◽  
Author(s):  
Eugénie Schwoertzig ◽  
Damien Ertlen ◽  
Michèle Trémolières
Keyword(s):  
Land Cover ◽  
Plant Communities ◽  
Riparian Corridors

scholarly journals Distribution of the Macrophyte Communities in the Danube Reflects River Serial Discontinuity

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 918 ◽  
Author(s):  
Georg A. Janauer ◽  
Norbert Exler ◽  
Goran Anačkov ◽  
Veronika Barta ◽  
Árpád Berczik ◽  
...  
Keyword(s):  
Plant Species ◽  
Plant Communities ◽  
Power Plants ◽  
Environmental Parameters ◽  
Species Number ◽  
Azolla Filiculoides ◽  
Hydro Power ◽  
Bank Structure ◽  
Free Running ◽  
Hydro Power Plants

The Danube is the second-longest river in Europe that is subjected to various man-made alterations, including those related to hydro-power plants. We surveyed and analyzed the presence and abundance of macrophytes in the main channel from 2582 river kilometers (rkm) to 171 rkm. We also assessed selected habitat parameters in the sampled river stretches. Sixty-eight different plant species were recorded along the entire course. Among neophytes, we found Elodea nuttallii, E. canadensis, Vallisneriaspiralis and Azolla filiculoides. Based on similarity analysis, we distinguished 15 plant communities, most of which were defined as associations, which were classified into 5 alliances and represented three vegetation classes, namely vegetation of rooted hydrophytes Potamogetonetea, the vegetation of pleustophytes Lemnetea and vegetation of marshes Phragmitetea. The number and abundance of plant species, as well as plant communities recorded in single stretches, varied along the course. Canonical correspondence analysis (CCA) revealed that environmental parameters explained 21% of plant species composition. CCA runs with neophytes explained 41% of the variance, and current velocity, water transparency, species number and bank structure were significant variables. The present study revealed that the free-running sections of the river are poor in number and abundance of plant species, whereas impounded reaches mainly show an opposite result.

scholarly journals Scale‐dependent shifts in functional and phylogenetic structure of Mediterranean island plant communities over two centuries

2021 ◽  
Author(s):  
Chunhui Zhang ◽  
Marc W. Cadotte ◽  
Alessandro Chiarucci ◽  
Michel Loreau ◽  
Charles G. Willis ◽  
...  
Keyword(s):  
Plant Communities ◽  
Phylogenetic Structure ◽  
Mediterranean Island

Tree species diversity reduces the invasibility of maritime pine stands by the bast scale, Matsucoccus feytaudi (Homoptera: Margarodidae)

2006 ◽  
Vol 36 (2) ◽  
pp. 314-323 ◽  
Author(s):  
H Jactel ◽  
P Menassieu ◽  
F Vetillard ◽  
A Gaulier ◽  
J C Samalens ◽  
...  
Keyword(s):  
Plant Communities ◽  
Tree Mortality ◽  
Pinus Nigra ◽  
Maritime Pine ◽  
Tree Species Diversity ◽  
Opposite Pattern ◽  
Pinus Pinaster Ait ◽  
Mediterranean Island ◽  
Pine Stands ◽  
Relative Differences

Species-rich plant communities may be more resistant to invasive herbivores because of reduced host-plant accessibility and increased natural enemy diversity and abundance. We tested these hypotheses in Corsica, a Mediterranean island recently invaded by the maritime pine bast scale, Matsucoccus feytaudi Duc., which causes widespread tree mortality in Pinus pinaster Ait. The endemic Matsucoccus pini Green infests Corsican pine, Pinus nigra laricio Poiret, where it is controlled by the native predatory bug Elatophilus nigricornis Zetterstedt. As revealed by kairomone trapping, E. nigricornis was most abundant in pure Corsican pine in areas not yet colonized by M. feytaudi, and in pure maritime pine its density decreased with the distance from the nearest Corsican pine forest. The abundance of M. feytaudi was compared in five pairs of pure maritime pine and mixed maritime and Corsican pine stands. It was consistently higher in pure than in mixed maritime pine stands, whereas E. nigricornis showed the opposite pattern, and relative differences were correlated with the proportion of Corsican pine in the mixture. The predation by E. nigricornis was manipulated in pure maritime pine stands using synthetic attractants of the predator. Matsucoccus feytaudi density was significantly reduced in maritime pines baited with kairomone dispensers.

A survey of the ecology and composition of submerged aquatic snail–plant communities

1978 ◽  
Vol 56 (11) ◽  
pp. 2263-2279 ◽  
Author(s):  
Eva Pip
Keyword(s):  
Water Chemistry ◽  
Plant Communities ◽  
Submerged Macrophytes ◽  
Environmental Parameters ◽  
Common Species ◽  
Gastropod Species ◽  
Chi Square ◽  
Environmental Preferences ◽  
Species Pairs ◽  
Major Grouping

A total of 305 sites were surveyed in southern Manitoba and adjacent areas for the presence of aquatic gastropods and submerged macrophytes with respect to eight water chemistry parameters. Many of the 41 gastropod species found within the study area showed significant preferences for certain parameters. Chi-square tests revealed 68 significant positive and 4 negative interspecific gastropod associations, many of which could not be correlated with net similarities or dissimilarities in significant preferences for the environmental parameters examined. The most common species did not form the most highly significant associations. Members of possible species pairs were compared with respect to their similarities in significant positive associations with other gastropods. The major groupings that emerged reflected characteristics of the habitats within which the species occurred most frequently.Chi-square tests were also conducted for possible snail–plant pairs, resulting in 161 significant positive and 31 negative associations. Many of these could not be correlated with environmental preferences. Members of possible gastropod pairs were compared with respect to their similarities in significant associations with macrophytes. The major grouping that emerged consisted of gastropods which also formed the most highly significant positive associations with macrophytes.

scholarly journals Distribution of Vascular Plant Communities in Slovenian Watercourses

Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1071
Author(s):  
Igor Zelnik ◽  
Urška Kuhar ◽  
Matej Holcar ◽  
Mateja Germ ◽  
Alenka Gaberščik
Keyword(s):  
Plant Communities ◽  
Environmental Variability ◽  
Myriophyllum Spicatum ◽  
Vascular Plant ◽  
Species Abundance ◽  
Environmental Parameters ◽  
Running Waters ◽  
Plant Associations ◽  
New Association ◽  
Form Type

Rivers and streams are heterogenous ecosystems that host a great number of vascular plant communities. The territory of Slovenia is highly diverse regarding geomorphologic, geologic, climatic, and edaphic conditions. We presumed that environmental variability will also affect the distribution of hygrophilous vascular plants in running waters and consequently the structure of plant communities they form. We analyzed macrophyte, spatial, and environmental parameters in 906 stretches of the watercourses occurring in the Dinaric, Pannonian, and Po lowland hydro-ecoregions. We determined 87 vascular plant taxa. The most abundant were Myriophyllum spicatum, Phalaris arundinacea, and Potamogeton nodosus. Submerged macrophytes presented about one third of total species abundance, while amphiphytes were somewhat less abundant. Canonical correspondence analysis (CCA) revealed that distance from the source explained 15.1% of the growth form type variability, and current velocity and latitude explained 4.1% each. With the assessed parameters, we explained 31.6% of the variability. When CCA was run with taxa, only 20.9% of their variability was explained with statistically significant parameters. We distinguished 25 different plant associations belonging to five classes and nine alliances. The majority of defined plant communities were distributed in different watercourses belonging to different hydro-ecoregions. Only seven communities had a narrower distribution range, three of them on karst poljes. Among them, the new association Mentho aquaticae-Oenanthetum fistulosae from the river Mali Obrh on the Loško polje was described in this contribution.

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