WetVegEurope: a database of aquatic and wetland vegetation of Europe

2015 ◽  
Vol 45 (1) ◽  
pp. 187-194 ◽  
Author(s):  
Flavia Landucci ◽  
Marcela Řezníčková ◽  
Kateřina Šumberová ◽  
Milan Chytrý ◽  
Liene Aunina ◽  
...  
Keyword(s):  
Plant Species ◽  
Wetland Vegetation ◽  
European Countries ◽  
Vegetation Types ◽  
Marsh Plant ◽  
Research Project ◽  
Marsh Vegetation ◽  
Future Studies ◽  
Aquatic And Wetland Vegetation

WetVegEurope is a research project (http://www.sci.muni.cz/botany/vegsci/wetveg) whose goal is to provide a synthesized formalized classification of the aquatic and marsh vegetation across Europe at the level of phytosociological associations. In order to achieve the project objective, a WetVegEurope database has been created (GIVD ID: EU-00-020, http://www.givd.info/ID/EU-00-020), which currently contains 375,212 vegetation plots of aquatic, marsh and wet vegetation types from 33 European countries. The WetVegEurope database includes datasets from pre-existing national and thematic databases and also 10,616 plots previously not digitalized or even unpublished. This database offers an extensive source of data for future studies on aquatic and marsh plant species and vegetation types at the European scale.

The phytosociology and ecology of saline vegetation with Scorzonera parviflora across the Pannonian-Western Balkan gradient

2015 ◽  
Vol 45 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Daniel Dítě ◽  
Pavol Eliáš ◽  
Róbert Šuvada ◽  
Vladimír Píš ◽  
Zuzana Melečková
Keyword(s):  
Pannonian Basin ◽  
Vegetation Types ◽  
Western Balkans ◽  
Current Management ◽  
Marsh Vegetation ◽  
Puccinellia Distans ◽  
Ordination Analysis ◽  
Cluster 2 ◽  
Abiotic Environmental Factors

The phytosociology and ecology of Scorzonera parviflora stands were studied in the Pannonian Basin and Western Balkans. In total, we used 60 relevés (46 collected for this study and 14 from the literature) for the ordination analysis. Optimal conditions for S. parviflora are species-poor coastal habitats in regions with hot summers and with high soil salinity and nutrient-richness. The species reached high cover values in most cases (25–50%) and it often dominated the stand. The classification of phytosociological data shows four floristically and ecologicaly well characterized clusters. Cluster 1 was identified as the rare association Junco maritimi-Scorzoneretum parviflorae, sampled only in coastal Croatia (on the island of Pag) and inland Hungary (Fertőszéplak). Cluster 2 groups meadow-like salt marsh vegetation in transition between two vegetation types, Limonio narbonensis-Puccinellietum festuciformis and Trifolio-Hordeetum secalini. Cluster 3 represents the typical variant of the Scorzonero parviflorae-Juncetum gerardii, while cluster 4 was determined as a variant with Tripolium pannonicum of the Scorzonero parviflorae-Juncetum gerardii characterized by a higher presence of obligate halophytes (Tripolium pannonicum, Puccinellia distans agg. and Plantago maritima) than in cluster 3. Our study shows that vegetation with Scorzonera parviflora in inland Central and SE Europe belongs to the Juncion gerardii and stands of coastal Croatia are related to the Juncion maritimi alliance. The species composition and the classification of the examined stands in the Pannonian and Transylvanian basins were influenced more by abiotic environmental factors than by current management.

SOIL AND PLANT SILICON STATUS IN OIL PALM CROPS IN COLOMBIA

2014 ◽  
Vol 51 (3) ◽  
pp. 382-392
Author(s):  
F. MUNEVAR M. ◽  
A. ROMERO F.
Keyword(s):  
Plant Species ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Leaf Age ◽  
Mobile Element ◽  
Research Project ◽  
Preliminary Step ◽  
Future Studies ◽  
Beneficial Effects ◽  
Weathered Soils

SUMMARYA study was conducted, including 17 oil palm (Elaeis guineensis Jacq) crops distributed throughout Colombia, to determine how much silicon (Si) this plant species accumulates in their leaves, and also to determine the available Si levels in the soils. The study was conceived as a preliminary step of a research project aimed at determining whether the beneficial effects of Si, which have been identified for other species also, occur in the oil palm crop. Available Si varied among soils; lower levels were found in the soils with characteristics associated with greater weathering as compared with less weathered soils. Relatively high leaf Si levels were found in all of the sites studied and this was interpreted as an indication that oil palm could be considered a Si accumulator. An increase in Si concentration with leaf age was found, indicating that this element probably behaves as a non-mobile element in the plant. A defined relationship between soil available Si and Si concentration in the leaves was not found, however. The results indicate that it is worthwhile conducting specific studies to determine the effects of Si on oil palm growth and behaviour, and provide useful criteria for the design of future studies.

Values in Action Inventory of Strengths (VIA-IS): Translation and Validation in Urdu Language

2020 ◽  
Vol 35 (1) ◽  
pp. 163-189
Author(s):  
Afifa Anjum ◽  
Naumana Amjad
Keyword(s):  
Factor Structure ◽  
Convergent Validity ◽  
Character Strengths ◽  
Future Studies ◽  
Structure Factors ◽  
Adult Participants ◽  
Positive Correlations ◽  
Cross Language ◽  
Translation And Validation

Values in Action is a classification of 24 character strengths grouped under six virtue categories. This classification is claimed to be universal across cultures and religions (Peterson & Seligman, 2004) and its measure that is, Values in Action Inventory of Strengths (VIA-IS) has been translated and validated in many languages. The present study aimed at its Urdu translation and validation on Pakistani adults taken from different educational institutes and workplaces. Study comprised two parts. Part I dealt with the translation and cross-language validation while in Part II, Construct validation on a sample of 542 adults and convergent validity on a sample of 210 adult participants were determined. Findings revealed satisfactory alpha coefficients for Urdu version. Significant positive correlations with positive affect and life satisfaction and negative correlations with negative affect were indicators of its convergent validity. Age was negatively associated with five strengths whereas significant gender differences were found on seven strengths. Social desirability effects were nonsignificant. Strength-to-virtue level factor structure exploration resulted in a theoretically meaningful four factor structure. Factors were named as Interpersonal, Cognitive, Vitality, and Transcendence and were comparable to factor structures proposed in studies on VIA-IS from a few other cultures. The study offers a valid Urdu translation for use in future studies with adult Urdu speaking population.

Forstliche Planung und ökologische Stabilität – ein Forschungsprojekt | Forestry planning and ecological stability:a research project

2003 ◽  
Vol 154 (5) ◽  
pp. 175-177
Author(s):  
Sandra Horat
Keyword(s):  
Plant Species ◽  
Development Planning ◽  
Ecological Situation ◽  
Ecological Stability ◽  
Research Project ◽  
Forest Development ◽  
Development Plans ◽  
Definition Of

Starting with a brief definition of the notion of ecological stability,the article goes on to describe how this issue is taken into account in forest development plans. We show that a surprising number of animal and plant species are affected by the planning. Depending on the ecological situation and the or ganisms under consideration, different stability characteristics are important. As not all ecological situations can reasonably be considered in forest development planning, we give various suggestions for improvement as to how the concept of ecological stability can better be taken into consideration in future regional forestry plans.

scholarly journals A Machine Learning Approach to Study Glycosidase Activities from Bifidobacterium

2021 ◽  
Vol 9 (5) ◽  
pp. 1034
Author(s):  
Carlos Sabater ◽  
Lorena Ruiz ◽  
Abelardo Margolles
Keyword(s):  
Machine Learning ◽  
Supervised Classification ◽  
Machine Learning Algorithms ◽  
Learning Approach ◽  
Human Milk Oligosaccharides ◽  
Future Studies ◽  
High Fiber ◽  
Machine Learning Approach ◽  
Prebiotic Oligosaccharides

This study aimed to recover metagenome-assembled genomes (MAGs) from human fecal samples to characterize the glycosidase profiles of Bifidobacterium species exposed to different prebiotic oligosaccharides (galacto-oligosaccharides, fructo-oligosaccharides and human milk oligosaccharides, HMOs) as well as high-fiber diets. A total of 1806 MAGs were recovered from 487 infant and adult metagenomes. Unsupervised and supervised classification of glycosidases codified in MAGs using machine-learning algorithms allowed establishing characteristic hydrolytic profiles for B. adolescentis, B. bifidum, B. breve, B. longum and B. pseudocatenulatum, yielding classification rates above 90%. Glycosidase families GH5 44, GH32, and GH110 were characteristic of B. bifidum. The presence or absence of GH1, GH2, GH5 and GH20 was characteristic of B. adolescentis, B. breve and B. pseudocatenulatum, while families GH1 and GH30 were relevant in MAGs from B. longum. These characteristic profiles allowed discriminating bifidobacteria regardless of prebiotic exposure. Correlation analysis of glycosidase activities suggests strong associations between glycosidase families comprising HMOs-degrading enzymes, which are often found in MAGs from the same species. Mathematical models here proposed may contribute to a better understanding of the carbohydrate metabolism of some common bifidobacteria species and could be extrapolated to other microorganisms of interest in future studies.

scholarly journals Nelumbo genome database, an integrative resource for gene expression and variants of Nelumbo nucifera

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Hui Li ◽  
Xingyu Yang ◽  
Yue Zhang ◽  
Zhiyan Gao ◽  
Yuting Liang ◽  
...  
Keyword(s):  
Gene Expression ◽  
Plant Species ◽  
Aquatic Plant ◽  
Molecular Breeding ◽  
Nelumbo Nucifera ◽  
Sequence Analyses ◽  
Genome Database ◽  
Future Studies ◽  
Sacred Lotus ◽  
Coexpression Networks

AbstractSacred lotus (Nelumbo nucifera, or lotus) is one of the most widely grown aquatic plant species with important uses, such as in water gardening and in vegetable and herbal medicine. A public genomic database of lotus would facilitate studies of lotus and other aquatic plant species. Here, we constructed an integrative database: the Nelumbo Genome Database (NGD, http://nelumbo.biocloud.net). This database is a collection of the most updated lotus genome assembly and contains information on both gene expression in different tissues and coexpression networks. In the NGD, we also integrated genetic variants and key traits from our 62 newly sequenced lotus cultivars and 26 previously reported cultivars, which are valuable for lotus germplasm studies. As applications including BLAST, BLAT, Primer, Annotation Search, Variant and Trait Search are deployed, users can perform sequence analyses and gene searches via the NGD. Overall, the valuable genomic resources provided in the NGD will facilitate future studies on population genetics and molecular breeding of lotus.

Marsh Vegetation Types of the Mississippi River Deltaic Plain

Estuaries ◽  
1998 ◽  
Vol 21 (4) ◽  
pp. 818 ◽  
Author(s):  
Jenneke M. Visser ◽  
Charles E. Sasser ◽  
Robert H. Chabreck ◽  
R. G. Linscombe
Keyword(s):  
Mississippi River ◽  
Vegetation Types ◽  
Marsh Vegetation ◽  
Deltaic Plain
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