نتایج جستجو برای: floristic composition

تعداد نتایج: 261466  

2006
Siegmar-W. Breckle

Afghanistan is a very mountainous country. It offers a big variety of ecological conditions, this means a big variety of vegetation types is covering land surface. These vegetation types are consisting of a high biodiversity, since the floristic influence from various neighbour regions is a considerable factor in floristic and vegetation pattern. On the other hand, Afghanistan is a very dry cou...

2016
Katherine J. Elliott James M. Vose

In mountainous areas such as the southern Appalachians USA, riparian zones are difficult to define. Vegetation is a commonly used riparian indicator and plays a key role in protecting water resources, but adequate knowledge of floristic responses to riparian disturbances is lacking. Our objective was to quantify changes in stand-level floristic diversity of riparian plant communities before (20...

2014
Sonia Ciccazzo Alfonso Esposito Eleonora Rolli Stefan Zerbe Daniele Daffonchio Lorenzo Brusetti

The rhizosphere effect on bacterial communities associated with three floristic communities (RW, FI, and M sites) which differed for the developmental stages was studied in a high-altitude alpine ecosystem. RW site was an early developmental stage, FI was an intermediate stage, M was a later more matured stage. The N and C contents in the soils confirmed a different developmental stage with a k...

2015
Mohamed A. Fadl Hussein F. Farrag

Fabaceae (leguminous species) is the third-largest family of angiosperms. Floristical and vegetation analysis studies of wild leguminous species in Taif, Saudi Arabia were the prime aims of the current work. General survey of the studied area resulted to the selection of three different locations (Alshafa area (with its different habitats), Wadi seesed and Taif Hawia road (cutting many small wa...

Journal: :Saudi journal of biological sciences 2010
Wafaa M El-Ghanim Loutfy M Hassan Tarek M Galal Abdelfattah Badr

In this study, 19 sites representing different habitats in Hail region were regularly visited for two years, in each site 2-5 stands were selected for investigating floristic composition and vegetation types in the area. A total of 124 species representing 34 families were recorded. The family Asteraceae is represented by the highest number of species (21 species) followed by the Poaceae (17 sp...

2012
Gouri Sahu K. K. Satpathy A. K. Mohanty S. K. Sarkar

A comprehensive study on phytoplankton dynamics in the coastal waters of Kalpakkam showed a considerable increase (almost 3 fold) in phytoplankton species composition (185 species) as compared to the earlier findings (60 species). Despite such a massive change in floristic composition, 4-10 times reduction in total cell count was observed during the present study, which varied between 1.7 x 10 ...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
G E Overbeck S C Müller V D Pillar J Pfadenhauer

In regularly burned grassland on Morro Santana, Porto Alegre, RS, Brazil, we investigated differences in the floristic composition and their relation to soil properties, aspect and distance from the forest border. In 48 plots of 0.75 m2, we identified a total of 201 species from a local species pool of approximately 450 to 500 species. Most species occurred in low frequencies, showing clumpy di...

2017
Artur Pliszko Małgorzata Jaźwa

The paper provides data on the fl oristic composition of vegetation in anthropogenic habitats suitable for Erigeron × huelsenii, a spontaneous hybrid between the alien E. canadensis and native E. acris s. str. The study is based on 21 phytosociological relevés (vegetation plots) of 5×5 m size made in 2013–2014 in the Polish part of the Lithuanian Lakeland (north-eastern Poland) using the Braun-...

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