Wyniki wyszukiwania - AGRO

1

Cropfield-weed communities of Northern Poland on the Eastern and Western sides of the Vistula

100%

Szmeja K.

Acta Agrobotanica

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2000

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tom 53

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nr 2

The research was carried out in the following 9 mesoregions of northem Poland, located on either side of the Vistula: Cassubian Coast, Cassubian Lakeland, Elbląg Plateaux, Górowo Plateaux, Ermelandic Plain, Iława Lakeland, Vistula Delta, Starogard Lakeland and Lower Vistula Valley. Atotal of 11 cropfield-weed communities have been distinguished and described. Those found in cereal crops included: Teesdaleo-Arnoseridetum, Papavereturn argemones, a transition community between Vicietum tetraspermae and Aphano-Matric.:arietum, AphanoMatric.:arietum, Lathyro-Melandrietum and Spergulo-Chrysanthemetum segeti. In root crops the oceurrenee was found of: Digitarietum isc.:haemii, Ec.:hinoc.:hlooSetarietum, Lamio-Veronic.:etum politae, Galinsogo-Setarietum, Fumarietum officinalis and Spergulo-Chrysanthemetum segeti. Due to the presence in the patches of most communities, especially root crop communities, of many common species, they show a number of similarities, floristie and structural.

2

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Utricularietum australis Th. Muller et Gors 1960 in Poland

86%

Spalek K.

Acta Societatis Botanicorum Poloniae

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2006

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tom 75

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nr 3

253-256

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

3

Plant communities and associations of root crops of the Kaluszynska Upland

86%

Skrajna T., Skrzyczynska J.

Acta Agrobotanica

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2008

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tom 61

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nr 2

A phytosociological classifi cation and the characteristics of weed communities developing in root crops of the Kałuszyńska Upland are given in this paper. The presence of three associations: Digitarietum ischaemi, Echinochloo-Setarietum and Lamio-Veronicetum politae, as well as of two communities: Setaria pumila–Setaria viridis and Panico-Setarion alliance, has been found. The differentiation in trophic and soil moisture conditions of habitats results in the fl oristic diversity of communities, divided into lower phytosociological units. Two variants have been distinguished within the association Digitarietum ischaemi, whereas Echinochloo-Setarietum has been divided into 2 subassociations and 6 variants.

4

Nymphaeetum candidae Miljan 1933 in Poland

86%

Spalek K.

Acta Societatis Botanicorum Poloniae

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2008

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tom 77

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nr 4

339-343

This paper presents the distribution, floristic composition and ecological requirements of the water plant community Nymphaeetum candidae Miljan 1933, belonging to the Potametea 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. Nymphaeetum candidae is considered to be a rare and endangered plant community in several countries of Central Europe.

5

Talinetum paniculati, a new synathropic association of tropical Africa

86%

Mosango M., Maganyi O., Namaganda M.

Polish Botanical Journal

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2001

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tom 46

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nr 1

6

Phytosociology and phytogeography of coastal saltmarshes in Western Australia

86%

Bridgewater P. B., Cresswell I. D.

Fragmenta Floristica et Geobotanica. Supplementum

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1993

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tom 02

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nr 2

7

Carici flaccae - Tetragonolobetum maritimi - a new plant association

86%

Glazek T., Luszczynska B.

Fragmenta Floristica et Geobotanica

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1994

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tom 39

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nr 1

8

Cerastietum tatrae Hadac et al.ex Hadac 1987 in the Polish Tatra Mountains [the Western Carpathians]

86%

Gorski P.

Roczniki Akademii Rolniczej w Poznaniu. Botanika

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2002

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tom 05

9

Expansion of Puccinellia distans [Jacq.] Parl. in the city of Tarnow

86%

Swies F.

Annales Universitatis Mariae Curie-Sklodowska. Sectio C, Biologia

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1998

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tom 53

10

Agglomerative hierarchical methods of cluster analysis in phytosociological research of lakes

86%

Grzybowski M., Endler Z.

Acta Hydrobiologica

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1999

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tom 41

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nr Suppl.6

11

A community with Elatine alsinastrum [Elatinaceae] in the neighbourhood of Chojna in West Pomerania [NW Poland]

86%

Popiela A., Fudali E.

Fragmenta Floristica et Geobotanica

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1996

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tom 41

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nr 2

12

Natural plant communities in the Pogubie Wielkie Lake system and their transformation

86%

Sikorski P.

Annals of Warsaw Agricultural University. Horticulture

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2000

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tom 21

13

The association Geranio phaei-Urticetum dioicae Hadac et al. (1969) in Central Pomerania

72%

Sobisz Z.

Biodiversity: Research and Conservation

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2014

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tom 35

14

Scope and data set of the phytosociological database ‘Grasslands in the Polish Carpathians’

72%

Korzeniak J.

Acta Societatis Botanicorum Poloniae

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2013

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tom 82

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nr 3

The phytosociological database as a tool for synthetic and comprehensive study of semi-natural meadows in the Polish part of the Carpathians is presented. It has been developed in the Institute of Nature Conservation of the Polish Academy of Sciences since 2007. All accessible phytosociological relevés were digitalized and stored in a TURBOVEG database. As of January 2013, 4620 relevés have been collected in the database, chiefly from mesic meadows of Arrhenatherion alliance (76%) and mat-grass swards of Nardo-Callunetea class (18%). They were recorded between 1923 and 2012 at an altitude range of 195–2000 m above sea level. For improving territorial coverage of the region by vegetation sampling, since 2009 an extensive field survey has been carried out to collect data from previously unexplored areas and record the actual stage of semi-natural grasslands. As a result 1146 recent unpublished relevés were collected. The statistics of available resources, discussion on the data quality and the application prospects of the database are outlined. The database “Grasslands in the Polish Carpathians” is an intrinsic part of the research on the diversity of vegetation in the Polish Carpathian grasslands, as well as a record of the changes it undergoes.

15

Proba oceny stopnia synantropizacji flory naczyniowej zachodniej czesci masywu Baraniej Gory

72%

Uzieblo A.

Acta Biologica Silesiana

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1992

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tom 21

39-49

16

The Polish Vegetation Database: structure, resources and development

72%

Kacki Z., Sliwinski M.

Acta Societatis Botanicorum Poloniae

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2012

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tom 81

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nr 2

The phytosociological database Polish Vegetation Database collects relevés of all vegetation types in Poland. The database was established in 2007 and is located at Department of Biodiversity and Plant Cover Protection, University of Wrocław (http://synbiot.uni.wroc.pl). On March 2012, the database included 40000 relevés collected between 1927 and 2011. Most of relevés was taken from published papers and represents almost all types of habitats of Poland. Large groups of relevés represent meadows and pastures (Molinio-Arrhnehteretrea), broadleaf forests (Querco-Fagetea), arable land communities (Stellarietea), coniferous forests (Vaccinio-Piceetea) and eutrophic reed communities (Phragmitetea). In comparison to other countries in Central Europe, Polish Vegetation Database currently belongs to medium-sized databases, with full functionality and accessibility. The present article describes its development, basic operational information and how it can be used in analysis of vegetation in Poland.

17

Application and comparative performance of network modularity algorithms to ecological communities classification

72%

Thiergart T., Schmitz U., Landan G., Martin W. F., Dagan T.

Acta Societatis Botanicorum Poloniae

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2014

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tom 83

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nr 2

Network modularity is a well-studied large-scale connectivity pattern in networks. The detection of modules in real networks constitutes a crucial step towards a description of the network building blocks and their evolutionary dynamics. The performance of modularity detection algorithms is commonly quantified using simulated networks data. However, a comparison of the modularity algorithms utility for real biological data is scarce. Here we investigate the utility of network modularity algorithms for the classification of ecological plant communities. Plant community classification by the traditional approaches requires prior knowledge about the characteristic and differential species, which are derived from a manual inspection of vegetation tables. Using the raw species abundance data we constructed six different networks that vary in their edge definitions. Four network modularity algorithms were examined for their ability to detect the traditionally recognized plant communities. The use of more restrictive edge definitions significantly increased the accuracy of community detection, that is, the correspondence between network-based and traditional community classification. Random-walk based modularity methods yielded slightly better results than approaches based on the modularity function. For the whole network, the average agreement between the manual classification and the network-based modules is 76% with varying congruence levels for different communities ranging between 11% and 100%. The network-based approach recovered the known ecological gradient from riverside – sand and gravel bank vegetation – to dryer habitats like semidry grassland on dykes. Our results show that networks modularity algorithms offer new avenues of pursuit for the computational analysis of species communities.

18

Revised distribution and phytosociological data of Orobanche coerulescens Stephan in Willd. (Orobanchaceae): Poland in relation to Central Europe

72%

Piwowarczyk R.

Biodiversity: Research and Conservation

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2012

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tom 26

19

Stubble field plant communities of the Mazowiecki Landscape Park

72%

Skrajna T., Lugowska M.

Acta Agrobotanica

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2010

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tom 63

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nr 2

The characteristics of communities found in unploughed stubble fields of the Mazowiecki Landscape Park and its agricultural buffer zone are presented in the paper. The association Echinochloo-Setarietum divided into a typical variant, the variant with Galinsoga parviflora, and the variant with Bidens tripartite, was the most frequently noted and floristically differentiated association. Patches of Digitarietum ischaemi were also frequently observed in stubble fields on the poorest habitats. Rarely, on fertile soils, small patches of floristically rich communities with Veronica agrestis were recorded. Periodically, excessively wet habitats were seldom occupied by the speciesrichest phytocoenoses of Centunculo-Anthoceretum punctati. Single patches of the community with Setaria pumila, the form with Aphanes arvensis, were observed only in the south-eastern part of the Park.

20

Phytosociological study of Trema orientalis and Vernonia auriculifera highland community in Southwestern Uganda [East Africa]

72%

Mosango M., Mwanjalolo Majaliwa J.

Polish Botanical Journal

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2008

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tom 53

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nr 2

125-138

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