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Wyświetlanie 1-15 z 41
Tytuł:
Orobanche pallidiflora Wimm. and Grab. in Poland: distribution, habitat and host preferences
Autorzy:
Piwowarczyk, R.
Chmielewski, P.
Gierczyk, B.
Piwowarski, B.
Stachyra, P.
Powiązania:
https://bibliotekanauki.pl/articles/58932.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Orobanche pallidiflora
Polska
new locality
locality
plant distribution
plant habitat
host preference
Orobanchaceae
rare species
flora
Opis:
The paper presents ten new localities of Orobanche pallidiflora Wimm. & Grab. from Poland (Middle Roztocze, Równina Bełska plain, Wyżyna Malopolska upland, Góry Kaczawskie Mts and Western Bieszczady Mts). Information on hosts, abundance and habitat preferences at the new localities is given and a supplemented map of the distribution in Poland is included.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Periods of occurrence and fecundity of Arion lusitanicus Mab. [Gastropoda: Pulmonata] in crop plant habitats in Poland
Autorzy:
Kozlowski, J
Kozlowski, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/65635.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
crop plant habitat
Gastropoda
Polska
Arion lusitanicus
occurrence period
plant protection
fecundity
life cycle
slug
Pulmonata
Opis:
In the years 1997-1999, studies on the periods of A. lusitanicus development and on the occurrence of its developmental stages were carried out. Dates of overwintering, mating, egg-laying, hatching and population peaks of the slug were observed on six sites located in horticultural habitats, as well as in the isolation cage, where slugs were reared. It was ascertained that A. lusitanicus has a year-long life cycle. The slug overwinters in the form of eggs or juvenile stages and rarely as adult individuals. Young slugs leave their winter shelters by the end of February. The mating period starts in the second half of July and lasts from 6 to 10 weeks. Eggs are laid from mid-August till late autumn. Slug hatching occurs in spring and autumn at the time of plant sprouting.
W latach 1997-1999 w rejonie Łańcuta prowadzono badania nad cyklem życiowym ślinika luzytańskiego - Arion lusitanicus Mah. W siedliskach upraw ogrodniczych oraz w izolatorze z hodowlą ślimaka obserwowano terminy: zimowania, kopulacji, składania jaj, wylęgania ślimaków i szczytów liczebności. Ustalono, że A. lusitanicus ma roczny cykl życiowy, ale w populacji ślimaka mogą także występować pojedyncze osobniki o dwuletnim cyklu życiowym. Zimują jaja lub stadia młodociane, rzadziej osobniki dorosłe. Młode ślimaki opuszczają kryjówki zimowe pod koniec lutego. Wyląg ślimaków z jaj zimujących trwa od połowy marca do końca kwietnia. W połowie maja stadia młodociane osiągają szczyt liczebności. Okres kopulacji rozpoczyna się w drugiej połowie lipca i trwa od 1,5 do 2,5 miesiąca. Jaja składane są od połowy sierpnia do późnej jesieni. Ze złożonych jaj wyląg ślimaków rozpoczyna na początku drugiej dekady września i trwa od 50 do 80 dni. Przed zimą wylęga się do 30% jaj. Reszta jaj zimuje i wylęga się wiosną następnego roku. Liczne pojawy A. lusitanicus przypadają wiosną i wczesną jesienią, w okresach wzrostu i wschodów roślin uprawnych najbardziej wrażliwych na żerowanie ślimaka.
Źródło:
Journal of Plant Protection Research; 2000, 40, 3-4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The number and abundance of ichneumonidae (Hymenoptera, Apocrita) subfamilies occurring in apple orchards and on their edges
Autorzy:
Piekarska-Boniecka, H.
Zyprych-Walczak, J.
Rzańska-Wieczorek, M.
Dinh, D.T.
Siatkowski, I.
Powiązania:
https://bibliotekanauki.pl/articles/11896262.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Czempin town
Gluchowo village
Gorzyczki village
plant habitat
plant environment
apple orchard
wild plant
plant diversity
insect
Hymenoptera
Apocrita
Ichneumonidae
Campopleginae
Cryptinae
Orthocentrinae
Pimplinae
beneficial insect
parasitoid
animal number
insect abundance
animal-plant interaction
ecological research
Opis:
Plant communities which form orchard edges are a vital element of ecological infrastructure enriching these agrocenoses. The research was conducted in an orchard environment made up of apple orchards and their edges in the form of agricultural cultivations, tree clumps and a road lined with trees and shrubberies. The study aim was to determine the impact of the orchard edge plant diversity onto the number and abundance of Ichneumonidae subfamilies in the orchards. The study showed that orchard environments made up of an apple orchard and edge plants of various species create better living conditions for Ichneumonidae parasitoids than the environment of an orchard and neighbouring agricultural cultivations. The diversity of orchard edge plants positively influences the abundance of the Ichneumonidae subfamilies rather than the number of subfamilies in the orchard. In the orchard habitat the following dominant subfamilies were found: Campopleginae, Cryptinae, Orthocentrinae and Pimplinae. These entomophages may control the abundance of pests infesting orchards.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 2; 93-103
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution patterns and habitats of endemic vascular plants in the Polish Carpathians
Autorzy:
Piekos-Mirkowa, H
Mirek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58249.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
endemic plant
Polska
Carpathians Mountains
vascular plant
habitat
distribution
Opis:
The paper deals with the richness and diversity of endemic and subendemic taxa in the Polish Carpathians. Based on critical studies in the literature and the authors' unpublished materials collected in the field, the distribution patterns of endemic species are analysed and discussed. The participation of endemics in the flora of single Carpathian ranges is assessed and analysed. The importance of the Tatra Mts as a centre of endemism is stressed. The frequency and altitudinal ranges of endemic taxa are characterized and their syntaxonomical spectrum is presented.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 4; 321-326
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Habitat differentiation of the Myriophyllum alterniflorum and Littorella uniflora phytocoenoses in Poland
Autorzy:
Klosowski, S
Szankowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/56680.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phytocoenosis
Polska
plant community
Littorella uniflora
Myriophyllum alterniflorum
habitat differentiation
Opis:
The present study showed the ecological differentiation of phytocoenoses dominated either by Myriophyllum alterniflorum or by Littorella uniflora, which in Poland are classified within the Myriophylletum alterniflori or Myriophyllo-Littorelletum association. The properties which best differentiated the waters of the above types of phytocoenoses were calcium and factors associated with the carbonate complex (pH, electrolytic conductivity, total and carbonate hardness), and pH in the case of substrates. The most distinct differences in the habitats were found between the phytocoenoses dominated by L. uniflora from the Pomeranian Lobelia lakes and those dominated by M. alterniflorum from the Łęczna-Włodawa Lake District, in which other species from the Littorelletea uniflorae class were absent. The L. uniflora phytocoenoses are associated with soft waters poor in Ca2+ and with the lowest values of pH, electrolytic conductivity, dissolved organic matter (COD-KMnO4) and dissolved SiO2. The substrates they inhabit are mineral and more acidic. By contrast, the values of the above-mentioned properties are considerably higher in the case of the phytocoenoses from the Łęczna-Włodawa Lake District. The habitats of the M. alterniflorum phytocoenoses from the Pomeranian Lobelia lakes occupy an intermediate position and are more similar to those of M. alterniflorum from the Łęczna-Włodawa Lake District. The results obtained in this study suggest that the phytocoenoses of L. uniflora and M. alterniflorum should not be included in the same association. Further studies are, therefore, necessary to resolve this problem. The comparative analysis of the present ecological findings and data obtained from other regions of Europe show that in Poland the phytocoenoses dominated either by L. uniflora or by M. alterniflorum, in which the contribution of Littorelletea uniflorae species is appreciable, are clearly associated with soft waters and their habitats are representative of the Littorelletea uniflorae class. The massive development of the phytocoenoses with both L. uniflora and M. alterniflorum in the Lobelia lakes is not always indicative of the increase in water hardness and euthrophication of waters typical of the communities of the Littorelletea uniflorae class. The M. alterniflorum dominated phytocoenoses without other Littorelletea species could be good indicators of the above processes taking place in such water ecosystems.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Typhetum laxmannii [Ubrizsy 1961] Nedelcu 1968 - the new plant association in Poland
Autorzy:
Nobis, M
Nobis, A.
Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/56849.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Typhetum laxmannii
plant association
anthropogenic habitat
rush
plant community
numerical analysis
kenophyte
plant distribution
Polska
Opis:
Typhetum laxmannii (Ubrizsy 1961) Nedelcu 1968 is a plant association new to Poland, built by an expansive kenophyte - Typha laxmannii Lepech. This paper presents the general distribution of both, the species and the association, paying particular attention to the area of Europe and Poland where, in recent years, many new locations as well as an increasing participation in vegetation cover have been observed. The habitat preferences of Typhetum laxmannii, the floristic composition of the association and its geographical differentiation within the occupied area are described. The current distribution of the association in Poland is presented on the cartogram map 10x10 km and possible expansion routes are suggested.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 4; 325-332
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in ion (K, Ca and Na) regulation, antioxidant enzyme activity and photosynthetic pigment content in melon genotypes subjected to salt stress - a mixture modeling analysis
Autorzy:
Erdinc, C.
Powiązania:
https://bibliotekanauki.pl/articles/11885877.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Turkey
arid habitat
semi-arid habitat
plant cultivation
muskmelon
Cucumis melo
plant genotype
antioxidant enzyme
photosynthetic pigment content
calcium ion
potassium ion
sodium ion
salt stress
Opis:
The present study aimed to identify the response of melon accessions and cultivars to salt stress in terms of ion exchange, enzyme activity, lipid peroxidation and photosynthetic pigment contents by mixture modelling. In mixture modeling, it is expected that the data set demonstrates a heterogeneous structure. This heterogeneity is characterized as unobservable heterogeneity. The data set’s heterogeneity produces severe deviations in the parameter assessments and the standard deviations. Heterogeneity is overcome when the data set separates itself into homogeneous sub-populations. Mixture modeling was performed using the Mclust mixture cluster program of the statistical software package R 5.2.3. Sub-populations were constructed by evaluating genotypes according to studied traits and correlation analysis was performed using the SPSS software package. The seedlings of 13 melon genotypes were harvested two weeks after salt application (0 mM or 50 mM NaCl) when symptoms of salt stress were observed. Nutrient contents and ratios (K, Ca, Na, K : Na and Ca : Na); superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activities malondialdehyde (MDA) chlorophyll a, chlorophyll b, total chlorophyll and carotenoid contents were measured. Mixture modeling and correlation analysis were used in evaluating the experimental data sets. Differences in responses to salt application were observed among genotypes. While all genotypes exhibited negative responses in terms of K : Na ratio, which is an important parameter of salt tolerance, the smallest decreases in K : Na ratios were observed in the YYU-11 (–57.09%) and YYU-4 (–58.78%) genotypes, indicating them to be the most tolerant to salt stress. In general, enzyme activity decreased in response to salt application, although the responses varied among genotypes, especially with regard to CAT and APX activity. The YYU-29 genotype was notable as the genotype with the highest K : Na ratio (1.79) as well as the smallest change in MDA content under salt stress.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2018, 17, 1; 165-183
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Floristic and habitat variability, nature and energy value of selected sedge communities
Autorzy:
Grzelak, M.
Gawel, E.
Waliszewska, B.
Janyszek, M.
Wronska-Pilarek, D.
Murawski, M.
Kniola, A.
Powiązania:
https://bibliotekanauki.pl/articles/790633.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
floristic variation
habitat variability
nature
energy value
sedge
plant community
floristic diversity
Opis:
The aim of this study was to determine floristic diversity, the chemical composition, nature value and energy value of selected sedge communities in view of habitat conditions in the Noteć valley. This study was based on a total of 46 relevés prepared according to Braun-Blanquet. The identified communities were represented by common plant associations, both natural or semi-natural. They comprised mainly vegetation of meadows excluded from agricultural use, on fresh and partly moist and very moist soils, of weak acid and neutral reaction. Analysed communities had moderate or high nature value. Sedges and Cyperaceae predominated in their structure, with the greatest share of Caricetum lasiocarpae (76%) and the lowest share of Caricetum distichae (44.6%). No Fabaceae were reported in any of the two plant associations, while herds were found in all associations. The greatest higher heating value and lower heating value were found for communities with Carex lasiocarpa and Carex disticha.
Źródło:
Steciana; 2016, 20, 4
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of rootstocks on the growth and yielding of sour cherry cv. 'Lutowka'
Wplyw podkladek na wzrost i plonowanie wisni odmiany 'Lutowka'
Autorzy:
Wocior, S
Powiązania:
https://bibliotekanauki.pl/articles/28269.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
cherry
sour cherry
habitat condition
fruit
soil
plant
rootstock
growth
yielding
Lutowka cultivar
Opis:
The strength of growth of ‘Łutówka’ trees was related to the soil quality and the rootstock. Measurements of the tree trunks and the crown size showed that on fertile soil the trees grafted on Mahaleb cherry grew worse, forming by 12% thinner trunks and by over 20% (signifi cantly) smaller crowns as compared to Mazzard cherry trees. On poor sandy-loamy soil the crowns of trees grafted on Mahaleb were signifi cantly, more than 40% bigger than those on Mazzard cherry. No signifi cant differences in the yielding and productivity of trees grafted on Mahaleb and Mazzard cherry trees were found on grey brown podzolic soil. The experiment conducted on sandy-loamy soil pointed to signifi cant differences in the yielding and productivity between ‘Łutówka’ trees grafted on the studied rootstocks. The trees grafted on Mahaleb cherry in both studied years were characterized by signifi cantly greater productivity than on the other rootstocks. Signifi cantly higher yields were gathered from the trees on Mahaleb cherry than on vegetative rootstocks, and by 70% higher than on Mazzard cherry. P-HL A rootstock is of little use in the planting of ‘Łutówka’, which grown poorly on light soils. Besides poor growth and yielding, in longer dry periods the studies found the appearance of chlorosis of magnesium on older leaves, and even wilting of the leaves.
Siła wzrostu drzew Łutówki zależała od jakości gleby i podkładki. Pomiary grubości pni i wielkości koron wykazały, że na żyznej glebie drzewa okulizowane na antypce rosły słabiej tworząc o 12% cieńsze pnie i o ponad 20% (istotnie) mniejsze korony niż na czereśni ptasiej. Na słabej glebie piaszczysto-gliniastej korony drzew okulizowanych na antypce były istotnie, o ponad 40% większe niż na czereśni ptasiej. Na glebie płowej nie stwierdzono istotnych różnic plonowania i produktywności drzew okulizowanych na czereśni ptasiej i antypce. W doświadczeniu wykonanym na glebie piaszczysto-gliniastej wykazano istotne różnice plonowania i produktywności między drzewami Łutówki, okulizowanymi na badanych podkładkach. Drzewa okulizowane na antypce w obydwu latach badań charakteryzowały się istotnie wyższą produktywnością niż na pozostałych podkładkach. Z drzew na antypce zebrano istotnie wyższe plony niż na podkładkach wegetatywnych a także o 70% wyższe niż na czereśni ptasiej. Podkładka P-HL A jest mało przydatna do nasadzeń słaborosnącej odmiany Łutówka na glebach lekkich. Oprócz słabego wzrostu i plonowania drzew stwierdzono pojawianie się w dłuższych okresach suszy chlorozy magnezowej na starszych liściach a nawet więdnięcia liści.
Źródło:
Acta Agrobotanica; 2008, 61, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation in stage structure and fitness traits between road verge and meadow populations of Colchicum autumnale [Liliaceae]: effects of habitat quality
Autorzy:
Mroz, L
Powiązania:
https://bibliotekanauki.pl/articles/57339.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
perennial plant
variation
stage structure
fitness trait
road verge
meadow
plant population
Colchicum autumnale
Liliaceae
habitat quality
Opis:
The frequency distribution and density of three life stages as well as fitness components of the perennial plant Colchicum autumnale growing in the unmanaged road verges and in the extensive mown and grazed meadows in the Sudeten Mts. were studied. Furthermore, investigated were the effects of population size and plant size (measured as number of flowers) on reproductive success and explored if variation in reproductive and vegetative traits of adults could be associated with soil characteristics. The t-test indicated that proportions of subadults and reproductive adults were significantly lower in verge than in meadow populations, and of vegetative adults significantly higher. The plant density of reproductive adults and the reproductive adults to all adults ratio were significantly lower in verge populations compared to meadow populations. Although habitat type accounted for significant variation in stage structure, no significant difference was found between vegetative and reproductive traits in adult plants, except for the number of flowers. In verge populations the number of flowers was significantly lower as compared to meadow populations. The traits related to reproduction were not significantly influenced by population size. However, the proportion of flowers setting fruit decreased significantly with increasing number of flowers. The stepwise multiple regression revealed significant relationships between soil characteristics and number of fruits per plant, fruit set, number seeds per plant and number of leaves in vegetative adults. The results suggest that the creation of the low and relatively open vegetation cover could increase the chance of persistence of C. autumnale living in verge habitats by promoting of seed germination, seedling establishment and flowering, and they also show that the reproductive success and vegetative components of fitness are most likely influenced by habitat quality.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 69-78
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Veronico beccabungae-Callitrichetum stagnalis [Oberd. 1957] Muller 1962, a plant association new to Poland - quality of habitat
Autorzy:
Spalek, K
Horska-Schwarz, S.
Powiązania:
https://bibliotekanauki.pl/articles/58347.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Polska
plant association
Potametea class
plant community
endangered association
aquatic plant
phytosociology
Veronico beccabungae-Callitrichetum stagnalis community
habitat quality
distribution
new plant association
Opis:
The paper presents a community of water plants that is new to Poland, Veronico beccabungae-Callitrichetum stagnalis (Oberd. 1957) Müller 1962. This community belongs to the class Potametea. It was discovered in the village of Odrowąż near the town of Krapkowice in Silesia (SW Poland). Veronico beccabungae-Callitrichetum stagnalis in Poland occurs within an irregularly shaped shallow underwater spring, located in the distal part of the Oder River’s flood terrace. This plant community covered 0.2 ha in 2008. Callitriche stagnalis predominated in this community. Species such as Callitriche hamulata and Callitriche verna occurred less frequently. An average of five species were counted in a relevé. Alkaline sediments (pH 8.03) occur in the substratum, but sediments with a lower pH value (7.73) occur in the spring’s outflow zone towards the Odra River. Water in the spring, where Veronico beccabungae-Callitrichetum stagnalis occurred, has a medium mineralisation but is rich in dissolved compounds. The condition of this community within the studied habitat could be evidence for highly adaptive abilities and this community's good adjustment to the natural conditions. Veronico beccabungae-Callitrichetum stagnalis is a rare and endangered plant community in Central Europe. The locality of this plant community in Poland should be given species protection.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 4; 345-349
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The phytocoenoses of anthropogenically transformed areas with great importance for Apoidea
Fitocenozy srodowisk antropogenicznie przeksztalconych cenne dla Apoidea
Autorzy:
Wrzesien, M
Denisow, B.
Powiązania:
https://bibliotekanauki.pl/articles/26700.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
anthropogenically modified habitat
railway area
plant association
Polska
Apoidea
synecological group
plant community
Lublin Upland
phytocoenosis
bee flora
Opis:
The paper indicates the phytocenoses most rich in bee taxons and occurring in habitats located along railway lines crossing Lublin Upland. To date, in the study area 124 basic phytocoenoses have been discovered, described and classified into 12 different synecological groups. Among 52 phytocoenoses, the participation of bee flora was considerable. Most voluble phytocoenoses represent ruderal and segetal associations (Ariern is ie tea vulgaris, Stellarietea mediae classes - 87 species), meadow and pasture associations (Mollinio-Arrhenatheretea - 56 species), psammophilous and xerothermic grasslands (Festuco- Brometea, Koelerio glauce-Corynophoretea canescensis - 38 species), thermophilous forest edge communities and thickets (Trifolio-Geranietea and Rhamno-Prunetea - 33 species). Significantly fewer melliferous and polleniferous taxons were noticed in mesophilous deciduous forests or thermophilous oak forests - 29 species. Most simple in structure and species richness are associations with Rumex acetosa, Reseda lutea, Linaria vulgaris, Papaver rhoeas, Cirsium arvense, Oenothera biennis, Viola arvensis and Potentilletum anserine or Sisymbrietum altissimi. The communities form patches (15-20 m² ) with 80-100% cover of the diagnostic taxon and are of low or medium stability. The most persistent and floristically stable are Tanaceto Artemisietum, Rudbeckio-Solidaginetum, Echio-Melilotetum, Sambucetum nigrae, Rubo fruticosi-Prunetum spinosae and communities with Rosa rugosa, Rubus caesius, Geranium robertianum, Pastinaca sativa, Trifolium medium or Euphorbia cyparissias. The maintenance of the mosaic of phytocoenoses in anthropogenically transformed habitats, including those along railway lines, is of decisive importance for the protection of floristic diversity and adaptation processes of Apoidea.
W pracy podjęto próbę wskazania fitocenoz najcenniejszych pod względem zasobności w gatunki pożytkowe i wykształcających się na siedliskach w obrębie trakcji kolejowych przebiegających przez Lubelszczyznę. Dotychczas, na badanym terenie, opisano 124 fitocenozy sklasyfikowane w 12 różnych grupach synekologicznych. W 52 z nich odnotowano znaczny udział gatunków pożytkowych. W grupie zbiorowisk ruderalnych i segetalnych (Artemisietea vulgaris, Stellarietea mediae) - 87 gat., w zbiorowiskach łąkowych i pastwiskowych (Molinio-Arrhenatheretea) - 56 gat., psammofilnych i kserotermicznych (Festuco-Brometea, Koelerio glauce-Corynophoretea canescensis) - 38 gat. Mniej gatunków pożytkowych występuje w zbiorowiskach reprezentujących mezofile lasy liściaste oraz świetliste dąbrowy, tylko 29. Najbardziej uproszczone postacie mają zbiorowiska z Rumex acetosa, Reseda lutea, Linaria vylgaris, Papaver rhoeas, Cirsium arvense, Oenothera biennis, Viola arvensis oraz asocjacje Potentilletum anserine czy Sisymbrietum altissimi. Tworzą one płaty o powierzchni 15-20 m² , w których gatunek diagnostyczny osiąga pokrycie 80-100%, a ich trwałość jest na poziomie średniej lub małej. Do stabilnych florystycznie należą natomiast asocjacje: Tanaceto-Artemisietum, Rudbeckio-Solidaginetum, Echio-Melilotetum, Sambucetum nigrae, Rubo fruticosi-Prunetum spinosae oraz zbiorowiska z Rosa rugosa, z Rubus caesius, z Geranium robertianum, z Pastinaca sativa, z Triforium medium czy z Euphorbia cyparisias. Utrzymują się one długo na rozległych powierzchniach - 20-50 m². Utrzymanie mozaiki fitocenoz na siedliskach antropogenicznie przekształconych, w tym w obrębie linii kolejowych, ma decydujące znaczenie w ochronie różnorodności florystycznej i procesach adaptacyjnych pszczołowatych.
Źródło:
Acta Agrobotanica; 2007, 60, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Demographic responses of boreal-montane orchid Malaxis monophyllos (L.) Sw. populations to contrasting environmental conditions
Autorzy:
Jermakowicz, E.
Brzosko, E.
Powiązania:
https://bibliotekanauki.pl/articles/58627.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
demographic response
orchid
white adder's mouth
Malaxis monophyllos
plant population
environment condition
population dynamics
red list
plant species
anthropogenic habitat
Opis:
In an age of changes in species’ geographical ranges, compounded by climatic and anthropogenic impacts, it become important to know which processes and factors influence plant populations and their persistence in the long term. Here we investigated dynamic and fitness components in twelve populations of Malaxis monophyllos (L.) Sw., situated in different geographical (regions) and ecological (type of habitat) units. Although M. monophyllos is a rare species, characterized by highly fragmented, boreal-montane distribution range, in last few decades it successfully colonized secondary habitats in Polish uplands. Our results indicate that M. monophyllos is represented mainly by small populations, which annual spatial and temporal changes might be very high, what affects the ephemeral character of these populations, regardless of the region and type of habitat. This dynamic structure, in turn, is caused by intensive exchange of individuals in populations, as well as by their short above-ground life span. Despite the large range of variation in size and reproductive traits, we can distinguish some regional patterns, which indicate boreal region as the most optimal for M. monophyllos growth and persistence in the long term, and with montane and upland/anthropogenic populations, due to lower reproductive parameters, as the most threatened. Although it should be considered that anthropogenic populations, despite their lower reproductive parameters and instability in the long term, present an intermediate, geographical and ecological character, therefore they may be valuable in shaping, both M. monophyllos’ future range, as well as its potential for response on ongoing and future changes. In general, reproduction is the main factor differentiating of M. monophyllos populations in regions, and we can suspect that it may become the cause of the future differentiation and isolation of these populations, occurring with progressive range fragmentation.
Źródło:
Acta Societatis Botanicorum Poloniae; 2016, 85, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low genetic diversity in the endangered population of Viola uliginosa in its locus classicus at Rzaska near Cracow [southern Poland] as revealed by AFLP markers
Autorzy:
Cieslak, E
Paul, W.
Ronikier, M.
Powiązania:
https://bibliotekanauki.pl/articles/58111.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
genetic diversity
endangered population
Viola uliginosa
Rzaska n.Krakow
Polska
AFLP marker
plant conservation
rare plant
threatened plant
wet habitat
genetic structure
population structure
Opis:
An extremely endangered population of Viola uliginosa Besser at the classical locality of this taxon has been studied. The AFLP analysis was based on 18 specimens of V. uliginosa (about 10% of preserved individuals); additionally, two individuals of V. riviniana were included in the data set as the out group. A high genetical uniformity of the whole population (similarity indexes close to 1) was detected. It was not correlated significantly with the spatial distribution of the plants. The study serves as a basis for practical conservation measures and at the same time as a starting point for a more extensive research on the genetical variability of the species throughout its range.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 245-251
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Habitat conditions of Sisymbrio-Stipetum capillate and Koelerio-Festucetum sulcatae steppe plant associations in the Ostoja Nidzianska specially protected area
Autorzy:
Misztal, A.
Zarzycki, J.
Bedla, D.
Powiązania:
https://bibliotekanauki.pl/articles/61924.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
habitat condition
Sisymbrio-Stipetum capillate association
steppe plant
Koelerio-Festucetum sulcatae association
plant association
Ostoja Nidzianska area
protected area
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2015, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 41

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