Temat: meadow area - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Patterns of seedling recruitment in experimental gaps on mosaic vegetation of abandoned meadows
Autorzy:: Borkowska, L
Powiązania:: https://bibliotekanauki.pl/articles/58798.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: Salix cinerea
meadow area
Carex acutiformis
botany
seedling
seedling appearance
Bialowieza National Park
Carex cespitosa
Opis:: The paper presents results of a study on the response of species growing in experimental gaps in the patches dominated by Carex acutiformis, C. cespitosa and Salix cinerea. The study was performed in a meadow area subjected to the process of succession in the Reski Range in the Białowieski National Park. Four patterns of seedlings recruitment in the experimental gaps were distinguished: pattern I - great number of seedlings with high richness of species, pattern II - great number of seedlings with low richness of species, pattern III - low number of seedlings with great richness of species and pattern IV - low number of seedlings with low richness of species.
Źródło:: Acta Societatis Botanicorum Poloniae; 2004, 73, 4
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Variation in size-dependent fitness components in a terrestrial orchid, Dactylorhiza majalis (Rchb.) Hunt et Summerh., in relation to environmental factors
Autorzy:: Mroz, L.
Kosiba, P.
Powiązania:: https://bibliotekanauki.pl/articles/57438.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: variation
size-dependent fitness component
terrestrial orchid
orchid
Dactylorhiza majalis
environmental factor
European orchid
total leaf area
plant size
flowering probability
flower production
threshold size
plant reproduction
leaf area
meadow site
Polska
soil nutrient
plant population
Opis:: We investigated the flowering probability and flower production in relation to plant size in a terrestrial orchid, Dactylorhiza majalis at 10 meadow sites in central and southwestern Poland. These sites differed in altitude (low, high) and management (presence or absence of mowing). At all sites, concentrations of nutrients in the soil were also measured. The probability of flowering increased significantly with the size of the plant in all populations, indicating that individuals do not flower until they reach a threshold size. Populations at high altitudes and the unmown sites had significantly lower threshold sizes for reproduction and showed sharp increase in flowering probability with plant size, compared to other populations. The threshold sizes for reproduction tended to decrease at sites rich in N and Mg and poor in P and S. Flower production was also size-dependent in all populations. Considerable between-site differences were found in the slope and the intercept of the regression between plant size and flower production. Flower production at some sites, at high altitudes, increased more steeply with plant size than at other sites. However, no pattern in size-dependent flower production was found relative to the measured environmental variables. Most of the size-dependent components of flowering probability were related to each other but not with the size-dependent flower production.
Źródło:: Acta Societatis Botanicorum Poloniae; 2011, 80, 2
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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