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Wyszukujesz frazę "subalpine zone" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Pochodzenie Galium schultesii i Stellaria holostea w Bieszczadach (Karpaty Wschodnie) : refugium glacjalne czy genetyczny tygiel?
The origins of Galium schultesii and Stellaria holostea in the Bieszczady Mts (Eastern Carpathians) : glacial refugium or genetic melting pot?
Autorzy:
Watrak, Grzegorz
Boroń, Piotr
Wróblewska, Ada
Bąba, Wojciech
Mitka, Józef
Wątroba, Marta
Opis:
The aim of the paper was to test the hypotheses on the genetic structure and origins of forest herbaceous plant species, Galium schultesii and Stellaria holostea, in the subalpine zone of the Bieszczady Mts. The species are generally the lowland elements occurred in fertile oak-hornbeam forests. Their extrazonal occurrence in the mountain subalpine zone could be an effect of recent, Holocene migrations from various glacial refugia or the surviving in situ the last glacial maximum (LGM) in cryptic forest refugia. The two hypotheses were tested with the use of AFLP genetic fingerprinting and the patterns of bands distribution were established based on General Linear Models (GLMs) and STRUCTURE analysis. Twenty nine populations of G. schultesii and thirty five population of S. holostea were sampled in the Carpathians, Transcarpathia, Pannonian Basin, Transilvania and Podolia. They were characterized by 200 and 219 AFLP loci, respectively. The Bieszczady’s populations of both species, as a geographical group, were not divergent from the adjoining regions (Analysis of Molecular Variance AMOVA, p > 0.05). In G. schultesii a group of AFLP bands in three populations from the Bieszczady Mts. were found in Transcarpathia and the Piatra Craiului Mts (E Carpathians). In S. holostea a group of AFLP bands were found in four of the Bieszczady’s populations, in the Eastern Romanian Carpathians (the Maramaros and Kelemen Mts.), and the Sandomierz Basin (Niepołomice Forest, north of W Carpathians). Both groups could have reflected a refugial pattern. The putative refugial vs. non-refugial groups had statistically significant between group variation (AMOVA) for both G. shultesii (4,8%, p = 0.006) and S. holostea (11,2%, p < 0.001). Statistical analysis showed that putative refugial group of S. holostea had statistically significantly lower indices of genetic richness FA (p = 0.03) and FAmax (p = 0.01), and higher divergence DW index (p = 0.002), in comparison to the non-refugial group. It could be an effect of the genetic bottleneck. Galium schultesii had significantly higher indices of genetic diversity: PPL (p = 0.008), Nei’s h (p = 0.037), Shannon I (p < 0.001), and divergence DW index (p = 0.007) in the putative refugial group. Probably both forest herbs could have persisted the LGM in the Bieszczady Mts.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Budowa, struktura i dynamika górnoreglowych borów świerkowych o charakterze pierwotnym w dolinach Pańszczycy i Stawów Gąsienicowych (Tatrzański Park Narodowy) w okresie kontrolnym 1991 - 2002
The structure, composition and dynamics of subalpine primeval spruce forests in the Panszczyca Valley and the Stawy Gasienicowe Valley [in the Tatra National Park] during the control period 1991-2002
Autorzy:
Karczmarski, J.
Tematy:
dynamika drzewostanu
sklad gatunkowy
Tatrzanski Park Narodowy
drzewostany swierkowe
Dolina Panszczycy
lesnictwo
proces dorastania
struktura drzewostanu
zasobnosc drzewostanu
budowa drzewostanu
Dolina Gasienicowa
regiel gorny
proces ubywania
przyrost drzewostanu
stand structure
stand dynamics
natural development cycle
primeval forest
spruce
subalpine zone
poland
Pokaż więcej
Wydawca:
Polskie Towarzystwo Leśne
Powiązania:
https://bibliotekanauki.pl/articles/1016108.pdf  Link otwiera się w nowym oknie
Opis:
The research presents changes (in the period of 1991−2002) in species composition, volume, dbh structure, height and storey structure, increment value, self−thinning rate and regeneration dynamics of the primeval−type spruce forests of the upper montane zone in the Pańszczyca Valley and the Stawy Gąsiennicowe Valley in the Tatra National Park on the example of three permanent experimental plots. The stands under study (as compared with other stands in the Polish Carpathians from the similar altitudinal zone, feature high productivity expressed by the current annual volume increment value of 4.1−4.5 cu.m./ha, diverse structure and composition depending on the represented stages and phases of stand development, as well as high stand stability.
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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