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Pollen morphology in Turkish Crataegus (Rosaceae)
Springer Science and Business Media LLC - Tập 118 - Trang 59-70 - 2008
Emel Oybak Dönmez
Oybak Dönmez E. 2008. Pollen morphology in Turkish Crataegus (Rosaceae). Bot. Helv. 118: 59 – 70. Pollen morphology of 20 Turkish Crataegus L. taxa (Rosaceae) was studied using light and scanning electron microscopy to assess whether pollen traits are of taxonomic value in this species group. The most frequent aperture type was tricolporate, but non-tricolporate pollen grains (trisyncolporate, tet... hiện toàn bộ
Mycorrhizal infection indicates the suitability of different management treatments for nature conservation in calcareous grassland
Springer Science and Business Media LLC - Tập 119 - Trang 87-94 - 2009
Markus Bernhardt-Römermann, Hans-Jörg Brauckmann, Gabriele Broll, Karl-Friedrich Schreiber, Peter Poschlod
The vegetation composition of calcareous grasslands in Central Europe is mainly determined by the applied management treatments and the nutrient status of the ecosystems, but these factors cannot clearly be separated. Recently several authors reported a shift in growth-limiting plant nutrients from nitrogen to phosphate. Therefore, we tested the interaction between management and plant available p... hiện toàn bộ
Botanical Notes
Springer Science and Business Media LLC - Tập 117 - Trang 197-211 - 2008
Rudolf Schmid-Hollinger, Ariel Bergamini, Niklaus Müller, Markus Peintinger, Norbert Schnyder, Silvia Stofer, Ursula Tinner, Sabine Güsewell, Christian Rixen, Sonja Wipf, Deborah Scharfy
Fortschritte in der Floristik der Schweizer Flora (Gefäßpflanzen)
Springer Science and Business Media LLC - Tập 115 Số 1 - Trang 83-93 - 2005
Bäumler, Beat, Moser, Daniel Martin, Gygax, Andreas, Latour, Cyrille, Wyler, Nicolas
Bäumler B., Moser D. M., Gygax A., Latour C. and Wyler N. 2005. Biodiversity Monitoring Switzerland 2001–2003; new floristic records, neophytes and red list species. Bot. Helv. 115: 83–93. As part of the Biodiversity Monitoring Switzerland (BDM), comprehensive records of vascular plant species are made along 2.5-km transects and on 10-m2 plots distributed regularly over the entire surface of Switz... hiện toàn bộ
Effects of competition and mowing on growth and reproduction of the invasive plant Erigeron annuus at two contrasting altitudes
Springer Science and Business Media LLC - Tập 119 - Trang 1-6 - 2009
Miluse Trtikova
Invasive plants are often abundant at frequently disturbed sites such as roadsides, because they benefit from reduced competition or increased nutrient availability. In Switzerland, roadsides are subjected to regular mowing, and to persist in these sites, plants must be able to compensate for the biomass removal. However, the ability to tolerate competition and mowing might decline under less favo... hiện toàn bộ
Genetic diversity, phenotypic variation and local adaptation in the alpine landscape: case studies with alpine plant species
Springer Science and Business Media LLC - Tập 119 - Trang 125-133 - 2009
Jürg Stöcklin, Patrick Kuss, Andrea R. Pluess
Plant survival in alpine landscapes is constantly challenged by the harsh and often unpredictable environmental conditions. Steep environmental gradients and patchy distribution of habitats lead to small size and spatial isolation of populations and restrict gene flow. Agricultural land use has further increased the diversity of habitats below and above the treeline. We studied the consequences of... hiện toàn bộ
Restoration of montane fen meadows by mowing remains possible after 4–35 years of abandonment
Springer Science and Business Media LLC - Tập 117 Số 1 - Trang 1-13 - 2007
Regula Billeter, Markus Peintinger, Matthias Diemer
Five-year changes in Swiss mire vegetation
Springer Science and Business Media LLC - Tập 120 - Trang 15-27 - 2010
Ulrich Graf, Otto Wildi, Meinrad Küchler, Klaus Ecker
To assess whether short-term changes in mire vegetation can be detected using the phytosociological approach, paired vegetation relevés from two surveys of 112 mire sites of Switzerland were assigned to phytosociological alliances through a numerical approach. About 30% of the plots were assigned to different alliances in the two surveys. These transitions were analysed based on species frequencie... hiện toàn bộ
Gradual decline in genetic diversity in Swiss stone pine populations (Pinus cembra) across Switzerland suggests postglacial re-colonization into the Alps from a common eastern glacial refugium
Springer Science and Business Media LLC - Tập 119 - Trang 13-22 - 2009
Felix Gugerli, Martin Rüegg, Giovanni G. Vendramin
Molecular genetic markers may reveal informative patterns of population processes such as historical migration, which may substantiate inference on postglacial re-colonization inferred, e.g., from fossil records. Palynological records of Swiss stone pine (Pinus cembra) suggest that the species has re-colonized the central Alps from a southeastern Alpine refugium after the last glacial maximum. Suc... hiện toàn bộ
Chromosome numbers of plant species from the Canary Islands
Springer Science and Business Media LLC - - 2006
Matthias Baltisberger, Alex Widmer
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