scholarly journals Plant communities of stubble-fields in the Lublin Region, P. I. Plant communities of poor sites

2013 ◽  
Vol 42 (1-2) ◽  
pp. 207-228
Author(s):  
Maria Jędruszczak ◽  
Franciszek Pawłowski ◽  
Zdzisława Wójcik
Keyword(s):  
Plant Communities ◽  
Cultivated Plants ◽  
Floristic Diversity ◽  
Ecological Conditions ◽  
Setaria Glauca

Floristic diversity is a specific characteristic of stubble-fields plant communities. They contain both the species which remained after harvesting cereal communities and the species developing root-plant communities. This diversity is favoured by the ecological conditions of stubble-fields (warmth, light, frequent rainfall but first of all lack of competition on the part of cultivated plants). The first part of the paper describes the plant communities of poor sites in the investigated region. It is based on 133 phytosociological records taken in August and September in 1975-1980 and on soil investigations. Three types of communities have been distingushed belonging to the <i>Panico-Setarion</i> association. They are: (1) <i>Digitarietum ischaemi</i> association, (2) <i>Setaria glauca-Scleranthus annuus</i> community and (3) <i>Echinochloo-setarietum</i> association. They all can be divided into smaller phytosociological units.

scholarly journals The stubble-field plant communities on lowland complexes in South-Eastern Poland. P. II. Plant communities of the Eu-Polygono-Chenopodion alliance

2013 ◽  
Vol 44 (1-2) ◽  
pp. 113-135
Author(s):  
Czesława Trąba ◽  
Zdzisława Wójcik
Keyword(s):  
Plant Communities ◽  
Euphorbia Esula ◽  
Alluvial Soils ◽  
Floristic Diversity ◽  
Brown Soil ◽  
Ecological Conditions ◽  
South Eastern ◽  
Field Plant ◽  
The Eu

Part I deals with the <i>Panico-Setarion</i> stubble plant communities. Part II describes the <i>Eu-Polygono-Chenopodion</i> plant communities. Part II is based on 89 photosociological records. The <i>Eu-Polygono-Chenopodion</i> plant communities develope on soil rich in nutrients (brown soil developed from silts loess and clay; alluvial soils developed from silts and loams; chernozem and black soils), belongs to wheat complexes. Two plant communities are distinguished: 1) <i>Oxalis stricta-Euphorbia esula</i> community; 2) <i>Veronica persica</i> community divided into four variants. The floristic diversity of these plant communities reflects the ecological conditions of the examined region.

scholarly journals The stubble-field plant communities on lowland complexes in South-Eastern Poland. P. I. Plant communities of the Panico-Setarion alliance

2013 ◽  
Vol 44 (1-2) ◽  
pp. 87-111
Author(s):  
Franciszek Pawłowski ◽  
Czesława Trąba ◽  
Zdzisława Wójcik
Keyword(s):  
Plant Communities ◽  
Floristic Diversity ◽  
South Eastern ◽  
Field Plant ◽  
Setaria Glauca

Floristic diversity is characteristic for stubble-field plant communities. Those communities consist of both the species remaining after harvesting of grain and of the species developing in rootplant communities. The first part of this paper describes the plant communities of poor sites in the investigated region. It is based on 90 phytosociological records taken in August and September of 1972-1975 and on soil investigations. The <i>Panico-Setarion</i> alliance was made up of: 1) the <i>Digitarietum ischaemi</i> association, 2) the <i>Setaria glauca</i> community and 3) the <i>Ecbinochloo-Setarietum</i> association, the <i>Setaria glauca</i> community was divided into smaller phytosociological units.

scholarly journals Ecology of neotropical mistletoes: an important canopy-dwelling component of Brazilian ecosystems

2012 ◽  
Vol 26 (2) ◽  
pp. 264-274 ◽  
Author(s):  
Rafael Arruda ◽  
Rodrigo Ferreira Fadini ◽  
Lucélia Nobre Carvalho ◽  
Kleber Del-Claro ◽  
Fabiana Alves Mourão ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Plant Communities ◽  
Neotropical Region ◽  
Cultivated Plants ◽  
Forest Plantations ◽  
Wide Range ◽  
Emerging Patterns ◽  
New Ideas ◽  
Basic Biology ◽  
Key Resources

Mistletoes have been studied in temperate countries regularly because they can be pests of cultivated plants and forest plantations. In comparison with temperate habitats, little is known about the ecology of mistletoes in the Neotropics. More emphasis should be given to neotropical mistletoes because they could be important elements of plant communities, acting as key resources for pollinators, seed dispersers and herbivores. Using a combination of findings from early mistletoe studies and empirical evidence from several recent case studies, we report emerging patterns of mistletoe interactions with associated organisms and propose aims for further studies. There has been increasing interest in working with mistletoes in Brazil. Although there are some data on the ecology of mistletoe seed dispersal, reproductive biology studies are scarce and represent a wide range of fieldwork to be explored. Knowledge of the basic biology of mistletoes will be very important for modeling their spatial distribution using metapopulation or epidemiological approaches. In this review, we summarize the studies conducted in the neotropical region in order to provide a framework for current research and new ideas for future investigations of mistletoes, especially in Brazil.

Plant Communities and Floristic Diversity of the Emerald Lake Basin, Sequoia National Park, California

Madroño ◽  
2009 ◽  
Vol 56 (3) ◽  
pp. 184-198 ◽  
Author(s):  
Philip W. Rundel ◽  
Michael Neuman ◽  
Peter Rabenold
Keyword(s):  
Plant Communities ◽  
National Park ◽  
Lake Basin ◽  
Floristic Diversity ◽  
Sequoia National Park

scholarly journals Contribution to the Knowledge of Rocky Plant Communities of the Southwest Iberian Peninsula

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1590
Author(s):  
Ricardo Quinto Canas ◽  
Ana Cano-Ortiz ◽  
Giovanni Spampinato ◽  
Sara del Río ◽  
Mauro Raposo ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Numerical Analysis ◽  
Iberian Peninsula ◽  
Plant Communities ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
Ecological Conditions ◽  
Southern Portugal ◽  
Rocky Habitats

The rocky habitats of southern Portugal are ecosystems with extreme xericity conditions, associated with special abiotic strains. In these unstable ecological conditions, a considerable diversity of plant communities occurs. The objective of this study, carried out in the Algarve and Monchique, and the Mariánica Range biogeographical sectors, is to compare chasmo-chomophytic communities of the southwestern Iberian Peninsula, using a phytosociological approach (Braun–Blanquet methodology) and numerical analysis (hierarchical cluster analysis). From these results, two new communities were identified, Sanguisorbo rupicolae-Dianthetum crassipedis and Antirrhinetum onubensis, as a result of floristic and biogeographical differences from other associations already described within the alliances Rumici indurati-Dianthion lusitani and Calendulo lusitanicae-Antirrhinion linkiani, both included in the Phagnalo saxatilis-Rumicetea indurate class.

scholarly journals Floristic diversity and use value of phytocoenoses in a section of the Wieprz river valley in Roztocze National Park for feeding the konik polski horse

2020 ◽  
Vol 74 (4) ◽  
pp. 123-134
Author(s):  
TERESA GRAŻYNA WYŁUPEK ◽  
HANNA KLIKOCKA ◽  
MARIUSZ KULIK ◽  
HALINA LIPIŃSKA ◽  
ADAM GAWRYLUK
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
National Park ◽  
Dry Weight ◽  
Wiener Index ◽  
River Valley ◽  
Use Value ◽  
Floristic Diversity ◽  
Feeding Preferences ◽  
Phytosociological Relevés

The paper describes the floristic diversity and specifies its use value in terms of feeding preferences of konik polski horses and their consumption of permanent grassland in a section of the Wieprz river valley in Roztocze National Park. The flora assessment was conducted by analyzing 79 phytosociological relevés using the Braun-Blanquet method. The results of phytosociological surveys made it possible to distinguish 7 complexes in the Phragmitetea class, 5 complexes and 1 plant community in the Molinio-Arrhenatheretea class, and 1 complex in the Nardo-Callunetea class. Natural values of the examined associations were described based on the total and average number of species in a phytosociological relevé, the Shannon-Wiener index, and the phytosociological structure of plant communities. The use value of dry weight of the analyzed meadows and pastures was estimated by means of the use value number (UVN) and taking into account the and yield size. The phytocoenoses identified in the meadows in the section of the Wieprz river valley under study exhibited high natural values (H’ = 3.20–4.62). The dry weight yields of the examined communities varied (from 1.32 to 5.37 t ha–1), but their sward usually had poor and very poor use value (UVN = from –0.55 to 5.8). Furthermore, it should be noted that the sward of wet meadows is readily consumed by the grazing animals, which contributes to the improvement of the natural and use value of meadows.

scholarly journals Floristic diversity of Dagestan florocoenotypes

2021 ◽  
Vol 38 ◽  
pp. 00083
Author(s):  
Ramazan Murtazaliev
Keyword(s):  
Plant Communities ◽  
Aquatic Vegetation ◽  
Mountain Lakes ◽  
Water Bodies ◽  
Deciduous Forests ◽  
Floristic Diversity ◽  
Mountain Areas ◽  
Floristic Similarity ◽  
Subalpine Meadows ◽  
Dry Steppes

The paper provides information on the floristic diversity of the florocenotypes of Dagestan 43 florocenotypes and 3 types of plant communities in anthropogenically altered habitats which are combined into three groups have been identified. It is registered that the most floristically rich florocoenotypes in the lowlands and in the zone of low foothills are shrub steppes (498 species), xerophilous forests and light forests of the Mediterranean type (462), forbs dry steppes of foothills (431) and herbcereal dry meadows of foothills (334), and in the mountain areas: polyurus vegetation (499 species), steppe after forest meadows (381), mixed deciduous forests (362), subalpine meadows (312) and xerophytic lithophyton with 310 species. Floristically poor florocenotypes are aquatic vegetation of mountain lakes with 14 species, vegetation of water bodies (53 species), precaspian floodplains (67) and precaspian curtain meadows (78 species). During the analysis of the floristic similarity, the florocoenotypes were combined into several clades, which we conditionally distinguished into the following groups: desert, hydrophytic, mesophytic, steppe, and arid.

scholarly journals Demographic structure of Caryophyllaceae Juss. rare species coenopopulations in Uzbekistan

2020 ◽  
Vol 24 ◽  
pp. 00081
Author(s):  
Khabibullo Shomurodov ◽  
Ozodbek Abduraimov ◽  
Nodira Rakhimova ◽  
Vasila Sharipova ◽  
Rizamat Khayitov
Keyword(s):  
Soil Moisture ◽  
Plant Communities ◽  
Rare Species ◽  
Stable State ◽  
Biological Characteristics ◽  
Demographic Structure ◽  
Ecological Conditions ◽  
Ontogenetic Structure ◽  
The Republic ◽  
Kyzylkum Desert

The article is devoted to the assessment state of the ontogenetic structure of some rare species of the Caryophyllaceae Juss. (Acanthophyllum cyrtostegium Vved. and Silene tomentella Schischk.), listed in the Red book of the Republic of Uzbekistan. In different ecological conditions and plant communities in the Kyzylkum desert, the studied coenopopulations are normal, but incomplete. In most cases, yang grows is absent, which indicates an irregular renewal and elimination of young individuals due to lack of soil moisture, which is often observed in desert conditions. The ontogenetic spectra of investigated coenopopulations are centered and it coincides with the theoretically established spectrum. This, in general, reflects the biological characteristics of the studied species and indicates a stable state of the examined coenopopulations.

scholarly journals The Significance of Alien and Invasive Slug Species for Plant Communities in Agrocenoses

2012 ◽  
Vol 52 (1) ◽  
pp. 67-76 ◽  
Author(s):  
Jan Kozłowski
Keyword(s):  
Invasive Species ◽  
Plant Communities ◽  
Adverse Impact ◽  
Alien Invasive Species ◽  
Cultivated Plants ◽  
Original Research ◽  
Frequency Of Occurrence ◽  
Arion Lusitanicus ◽  
Large Numbers ◽  
Significant Damage

The Significance of Alien and Invasive Slug Species for Plant Communities in AgrocenosesThis paper lists alien invasive species of slugs occurring on crops grown in the ground and under covers, as well as in adjacent habitats. It gives a description of their origin, distribution within Poland, frequency of occurrence in different habitats, and an evaluation of the danger to cultivated plants posed by particular slug species. Based on reports in the literature and the results of original research, basic data is presented concerning the biology and harmfulness of these slugs on crops. The potential risk of the spreading of invasive slug species is evaluated, as well as their adverse impact on crop plants. It has been concluded that a major risk to the biodiversity of agrocenoses and to cultivated plants is currently posed by the slugsArion lusitanicus, A. rufusandA. distinctus. These slugs are spreading rapidly within Poland, often occur in large numbers, and do significant damage to various species of plant.

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