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Wyświetlanie 1-15 z 31
Tytuł:
Loiseleuria procumbens [Ericaceae] in the Spanish Pyrenees
Autorzy:
Boratynski, A
Romo, A.
Powiązania:
https://bibliotekanauki.pl/articles/57533.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phytocoenology
Alpine azalea
Loiseleuria procumbens
Pyrenees Mountains
chorology
azalea
Spain
Arctic-alpine plant
plant geography
Ericaceae
Opis:
The paper analyses the distribution and occurrence conditions of Loiseleuria procumbens in the Spanish Pyrenees. The species represents a typical arctic-alpine element in the flora of Europe. In the Pyrenees it reaches its southernmost European localities. The Pyrenean populations of the species are not numerous in the majority of the localities. L. procumbens occurs most frequently in the alpine and subalpine zones, at altitudes between 2100 and 2650 m, with a minimum at 1750 m and a maximum at 2900 m. It has been reported nearly exclusively in the siliceous substrata, and predominantly on the north-facing slopes, on the regosols and/or on flat tops of rocks. It forms its own communities, mostly included into the Loiseleurio-Vaccinion alliance, and rarely enters associations of the Festucion airoidis and Rhododendro-Vaccinion alliances. Its typical community, Cetrario-Loiseleurietum procumbentis, is found only in the eastern and central parts of the Spanish Pyrenees.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anomalous needle numbers on dwarf shoots of Pinus mugo and P. uncinata [Pinaceae]
Autorzy:
Boratynska, K
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/59282.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
needle
brachyblast
morphological variation
abnormal dwarf shoot
Europe
dwarf shoot
Pinus mugo
Pinus uncinata
Opis:
The frequency of occurrence of abnormal, three- (or more) needle dwarf shoots of most southern and central European two-needle pine (Pinus) species were studied. No specimens with more than two-needle dwarf shoots were found in a population of P. nigra Arnold subsp. salzmannii (Dunal) Franco from the Iberian Peninsula and in two populations of P. uliginosa Neumann from the Sudeten Mountains in Central Europe. Single specimens were found within one population of P. pinaster Aiton from the Iberian Peninsula and among six populations of P. sylvestris L. from the Iberian Peninsula and Central Europe. Abnormal dwarf shoots mostly with three, but also four, five or six needles were found among 24 of 25 surveyed populations of P. mugo Turra and P. uncinata Ramond. The average frequency of specimens with at least one three-needle dwarf shoot was 24% for P. mugo and 20% for P. uncinata. The frequencies of occurrence varied significantly among studied populations and were highest in samples collected from the upper elevational range limits of the species in the mountains and near the northern limits of their ranges. The frequency of abnormal dwarf shoots in the same populations was significantly high in 2-3 consecutive years. Needles from three-needle dwarf shoots were not significantly shorter than those of two-needle shoots.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chorology of Juniperus thurifera (Cupressaceae) in Morocco
Autorzy:
Romo, A
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/41020.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Morocco
plant geography
plant ecology
Juniperus thurifera ssp.africana
geographic distribution
occurrence condition
wood exploitation
Opis:
The geographic distribution and occurrence conditions of Juniperus thurifera subsp. africana in Morocco were studied. The literature and herbaria data, together with field observations formed the basis of detailed maps of distribution of the species in the Middle and High Atlas and allow us to analyze its vertical distribution. The taxon occurs in the sub-arid and arid zones of the Middle and High Atlas with a separate population in the Anti-Atlas, mostly between altitudes 2000 and 2700 m, with an altitudinal maximum at 3400 m and a minimum at 1700 m. It forms forests in the area of about 30 000 ha. In many places of the High Atlas it is the only wood source for local populations. It is strongly endangered because of over exploitation of the wood, over pasturing and lack of seedlings and young specimens.
Źródło:
Dendrobiology; 2005, 54; 41-50
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chorological and synanthropodynamical analysis of trees and shrubs of the Stołowe Mts. (Middle Sudety)
Autorzy:
Swierkosz, K
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/41383.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Silesian region
Stolowe Mountains
biodiversity
plant protection
tree
flora
chorology
shrub
Opis:
The 153 taxa of trees and shrubs were reported from the Stołowe Mts. Two species (Betula nana and Erica tetralix) were reported probably by mistake,and 7 are now extinct (Arctostaphylos uva-ursi, Chamaecytisus ratisbonensis, Genista pilosa, Lembotropis nigricans, Rosa agrestis, Salix lapponum, Salix myrtilloides). The other 144 taxa of trees and shrubs were found in the natural and semi-natural site conditions. The 110 native taxa and 34 anthropophytes are forming the contemporary woody flora. The 44 native taxa belong to various local red data book categories (including extinct),the 63 are not endangered and next 10 are apophytes. A few altitudinal groups of species can be distinguished,which are characterized with specific reaction to the growth of the altitude of localities. The distinct limit in the altitudinal ranges of the woody species occur at elevation of 580-600 m. This altitude was considered as the limit between submontane and montane belts in the Stołowe mountains.
Źródło:
Dendrobiology; 2002, 48
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Loiseleuria procumbens (Ericaceae) in the Ukrainian Carpathians
Autorzy:
Boratynski, A
Didukh, Y.P.
Powiązania:
https://bibliotekanauki.pl/articles/41716.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
ecology
Ukraine
phytocoenology
alpine azalea
plant protection
Loiseleuria procumbens
Carpathians Mountains
chorology
plant geography
Ericaceae
Opis:
Distribution of Loiseleuria procumbens (L.) Desv. in the Eastern Carpathians of Ukraine is presented on the basis of herbaria, literature and the authors' field studies. Site conditions of species occurrence and its phytocoenotic properties are described. The needs' of protection of L. procumbens and its plant communities are discussed.
Źródło:
Dendrobiology; 2002, 47
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cerasus fruticosa Pall. (Rosaceae) in the region of Kujavia and South Pomerania (N Poland)
Autorzy:
Boratynski, A
Lewandowska, A.
Ratynska, H.
Powiązania:
https://bibliotekanauki.pl/articles/41053.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Rosaceae
Pomeranian region
anthropopression
Polska
hybridization
habitat change
Cerasus fruticosa
plant protection
species extinction
Opis:
Cerasus fruticosa is a rare and endangered plant species in Poland. In northern part of the country it occurs on scattered localities of relic, early Holocene (preboreal) character. Most of the species stands known from the end of 19th century have disappeared in the last decades. All data, revised in the field 40 years ago, were checked in 2000-2002. The species survived on 6 localities of 14 ones, confirmed in sixteenth. The hybridization between C. fruticosa and C. vulgaris is one of the main reasons of extinction of the first species. The floristic composition of plant communities with C. fruticosa was examined and compared with relevant literature. The regression of photophilous and thermophilous plant species, characteristic for associations with C. fruticosa and moderate invasion of synanthropic ones were observed.
Źródło:
Dendrobiology; 2003, 49
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The yew (Taxus baccata L.) population in Knyazhdvir Nature Reserve in the Carpathians (Ukraine)
Autorzy:
Boratynski, A.
Didukh, Y.
Lucak, M.
Powiązania:
https://bibliotekanauki.pl/articles/41551.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Ukraine
occurrence condition
Knyazhdvir Nature Reserve
yew
plant protection
Carpathians Mountains
Taxus baccata
standing structure
population
Opis:
The natural population of yew in the Knyazhdvir Nature Reserve was described and its status has been analyzed. It was stated that more than 22 000 specimens of yew grow there and it is the most numerous population of the species in Ukraine. The most important factor for Taxus baccata occurrence there are the presence of calcium carbonate and humidity of the soils. The height and diameter structures of the population indicate that the population is in progress. The largest specimens in 1976 were of 12 m high and of 30 cm dbh. The natural regeneration is satisfactory. The increment of height of the yew was greater in the conditions of less density of the canopy of beech-fir stand under which the species grows.
Źródło:
Dendrobiology; 2001, 46
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic differences between two Polish populations of Pinus uliginosa, compared to P. sylvestris and P. mugo
Autorzy:
Lewandowski, A
Samocko, J.
Boratynska, K.
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/41457.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
pine
genetic distance
Pinus sylvestris
Pinaceae
electrophoresis
peat bog pine
allozyme
Pinus uliginosa
Pinus mugo
genetic differentiation
Opis:
Genetic differences between two populations of P. uliginosa from Batorów and Węgliniec were assessed on the basis of 15 allozyme loci. The level of genetic differentiation between them was also compared with genetic differences among the three closely related pine taxa: P. uliginosa, P. sylvestris and P. mugo. A high level of genetic variation was found in both populations of P. uliginosa. The average (Na) and effective (Ne) numbers of alleles per locus amounted respectively to 2.47 and 1.50 in Węgliniec and to 2.67 and 1.52 in Batorów and the percentage of polymorphic loci was 80% and 87%, respectively. Close relationship between the three studied species were confirmed. The genetic differences between the two populations of P. uliginosa were substantial, as the Nei's genetic distance between the two populations (D = 0.040) was larger than between populations of P. sylvestris and between populations of P. mugo. The relatively high level of genetic differentiation between P. uliginosa populations may result from their isolation, small size and possibly different origin of these populations.
Źródło:
Dendrobiology; 2002, 48
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geographic patterns of genetic diversity of Pinus mugo (Pinaceae) in Central European mountains
Autorzy:
Dzialuk, A.
Boratynski, A.
Boratynska, K.
Burczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/41575.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
geographic pattern
genetic diversity
Pinus mugo
Pinaceae
Alps Mountains
Carpathians Mountains
dwarf mountain pine
phylogeography
chloroplast
microsatellite
Giant Mountains
geographic distribution
Opis:
The genetic diversity within and among twelve populations (379 individuals) of Pinus mugo from the Giant Mts., Carpathians and Alps was analyzed using ten chloroplast microsatellite markers. A stepwise mutation model (SMM) for microsatellite loci was used in order to estimate divergence between populations and provenances from three mountain ranges. High levels of genetic diversity and significant differentiation were found among the three population groups. The populations from Giant Mts., Carpathians and Alps were strongly differentiated between each other, while differences among populations within these massifs were much lower. The pattern of genetic structure observedin dwarf mountain pine can be characteristic in conifers with a disjunctive geographic distribution. The significant genetic structuring among isolated parts of the geographic range of the species may be a result of an ancient fragmentation andlong lasting geographic isolation between the Giant Mts., Alpine and Tatra populations of P. mugo.
Źródło:
Dendrobiology; 2012, 68
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological variation of Juniperus oxycedrus subsp. macrocarpa [Cupressaceae] in three Italian localities
Autorzy:
Klimko, M
Boratynska, K.
Boratynski, A.
Marcysiak, K.
Powiązania:
https://bibliotekanauki.pl/articles/58092.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
locality
Italy
variation
Cupressaceae
biometry
morphology
Juniperus oxycedrus
taxonomy
Opis:
The intra- and interpopulational geographic variation of three distant populations of J. oxycedrus subsp. macrocarpa was examined biometrically on the basis of morphological key-characters of needles, seeds and cones. The shortest Euclidean distances were used in the agglomerative grouping of closest neighbourhood and discrimination analysis with principal component analysis (PCA) was performed to verify the south-north differentiation of the taxon in Italy. Most of the cone and seed dimensional characters are correlated. No significant correlations were found between cone and needle characters. The sampled populations differ only insignificantly from one another, while the intrapopulational variation is slightly higher. Cone length as well as seed number, width and thickness were significantly correlated with geographic latitude, while the other four characters are not. Differences in cone shape were observed between individuals, so that several morphotypes can be distinguished.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Could clonality contribute to the northern survival of grey alder [Alnus incana(L.) Moench] during the Last Glacial Maximum?
Autorzy:
Dering, M.
Latalowa, M.
Boratynska, K.
Kosinski, P.
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/58973.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
Reconstruction of the glacial and postglacial history of a species, including life-history traits, provides valuable insights into the relationships between ecological and genetic factors shaping phylogeographic patterns. Clonality appears as a trait of high importance for survival in northern refugia. In the present study, the phylogeographic structure of 24 Alnus incana (grey alder) populations and clonal structure in seven populations were analyzed utilizing four microsatellites markers. Palaeobotanical data were collected and combined with the genetic results in order to support the possibility that this species survived in northern refugia. Our study indicated that: (i) Balkan populations are the most divergent, which likely reflects their long-term in-situ existence, (ii) Western Alpine populations are genetically different from other European populations, which corresponds with palaeobotanical data, suggesting that this region served as a refugium for this species, (iii) the macrofossil data indicate that the Scandinavian and northeastern Polish populations are likely derived from the refugia located in northern latitudes, (iv) Western and Eastern Carpathian populations form separate groups, which indicate that both regions could serve as refugia. Clonality was an important factor in allowing grey alder to survive in northern regions during the last glaciation. However, this mode of reproduction has also influenced the population genetic structure, as we noted rather low level of gene diversity, HE = 0.386 and low allelic variability, A = 3.8, in this species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2017, 86, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany roślinności w rezerwacie "Cisy Staropolskie im. Leona Wyczółkowskiego" koło Wierzchlesu w Borach Tucholskich
Changes in vegetation of the 'Cisy Staropolskie im. Leona Wyczolkowskiego' reserve near Wierzchlas in the Tuchola Forest
Autorzy:
Iszkuło, G.
Golimowski, R.
Lewandowska, A.
Wachowiak, E.
Boratyński, A.
Powiązania:
https://bibliotekanauki.pl/articles/994670.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
rezerwaty przyrody
rezerwat Cisy Staropolskie
cis pospolity
Taxus baccata
dynamika roslinnosci
dynamika zmian
taxus baccata
association dynamics
seedling die−off
sex structure
Opis:
Basing on repeated analyses of vegetation of the ‘Cisy Staropolskie im. Leona Wyczółkowskiego’ reserve near Wierzchlas (N Poland) it was found that frequency of species characteristic for Querco−Fagetea association increased at the expense of species typical for acidophilous and wet sites (Vaccinio−Piceetea, Quercetea robori−petraeae and Alnetea glutinosae, Phragmitetea classes respectively). Yew population decreased in number by almost 30%, while in case of other species this rate amounted from 18 to 80%. This points to natural process of decrease in number of trees related with their growth and ageing. Sex structure of Taxus baccata population (only 29% of females) turned to be very unfavourable. Although yew seedlings occur in great number, they die in vast majority during the wintertime. Low temperature connected with over−shadowing are probably the main reason of such small survival rate.
Źródło:
Sylwan; 2012, 156, 03; 163-169
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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