Autor: Walas, Łukasz - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: „Jak żyć?”. Szymborskiej mądrość bez rutyny – z Teresą Walas, Natalią de Barbaro, Wojciechem Ligęzą i Tomaszem Stawiszyńskim rozmawia Łukasz Tischner
Autorzy:: Walas, Teresa
de Barbaro, Natalia
Ligęza, Wojciech
Stawiszyński, Tomasz
Tischner, Łukasz
Piech, Bartosz
Powiązania:: https://bibliotekanauki.pl/articles/52909072.pdf
Data publikacji:: 2023
Wydawca:: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Źródło:: Konteksty Kultury; 2023, 20, 4; 495-506
2083-7658
2353-1991
Pojawia się w:: Konteksty Kultury
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Influence of herbivory pressure on the growth rate and needle morphology of Taxus baccata L. juveniles
Autorzy:: Kýpeťová, Marina
Walas, Łukasz
Jaloviar, Peter
Iszkuło, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/956958.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: taxus baccata l.
herbivory grazing
regeneration
sapling growth
Opis:: Damage by herbivore grazing negatively influences the development of subsequent forest generations. Little is known about the long-term impacts of grazing and interactions between grazing and light conditions on sapling growth after the cessation of herbivory impact. In this study, Taxus baccata saplings were grown over a period of four years in artificial shading at 2, 8, 30 and 100% of full sunlight (described as initial light). These saplings were planted in fenced and unfenced plots in a mixed forest in Poland. After six years with no protection from grazing, deer pressure was eliminated by fencing. In this study, we analysed sapling growth and needle morphology five years after deer suppression. Overall, grazing had a negative significant impact on the growth rate and needle morphology of T. baccata saplings. Saplings damaged by herbivores had a height increment approximately one-third that of non-grazed saplings. The grazed yew saplings had a lower needle area and length and a higher specific leaf area (SLA) than non-grazed saplings. Initial and current light conditions did not influence tree growth rates and needle morphology. However, we found positive correlations between sapling height and both leaf area and leaf length and a negative correlation between sapling height and SLA. Browsed yews also had a greater tendency to form polycormic (multi-stemmed) individuals. Lower growth rates, smaller needles and polycormic stems indicate a strategy of “escaping” herbivory pressure even five years after elimination of deer pressure.
Źródło:: Dendrobiology; 2018, 79; 10-19
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Taxus baccata in Morocco: a tree in regression in its southern extreme
Autorzy:: Romo, Angel
Iszkuło, Grzegorz
Taleb, Mohammed Seghir
Walas, Łukasz
Boratyński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/956808.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: dakhs
ecology
forestry
phytogeography
plant conservation
niche modelling
Opis:: The knowledge on chorology of species is basic for biogeographic and ecological studies and for conservation actions. The data on the chorology of Taxus baccata in Morocco have not been studied. The bibliographic resources, herbarium material, unpublished data of several botanists and the authors’ field notes have been reviewed. Two yew populations on Jbel Lakrâa in the Rif and near Bekrit in the Middle Atlas were measured to verify demographic structure and health conditions. The Maxent model of predicted habitat based on bioclimatic variables was used to evaluate the potential geographic range of T. baccata. The species occurs in the mountain areas of northern Morocco: in the Rif, the Middle and High Atlas, at altitudes between (500) 1200 and 2000 (2350) m. In the High Atlas, it reaches its southernmost locations within the geographic range. The populations represented by the highest number of individuals are found in the Western Rif and Middle Atlas, while from the High Atlas only single, isolated individuals are known. The yew occurred preferably in forests of Cedrus atlantica, Abies maroccana, groves of Betula fontqueri, Ilex aquifolium and Prunus lusitanica and in riparian forests located in narrow gorges. Seedlings were observed only at single localities. The population of T. baccata in the Rif presented a good health condition with successful regeneration, while the population in the Middle Atlas was in a much worse state, where only 4–8 m high yews were observed, without natural regeneration. The Maxent model of predicted habitat, based on bioclimatic variables, suggests that T. baccata could occur today in much broader mountainous areas in Morocco, especially in the Rif and Middle Atlas. However, the progressive decline of this species in Morocco indicates the significant importance of other factors on yew distribution, including microsite conditions and human pressure. Taxus baccata in Morocco is in regression at most of its localities and should be treated as a vulnerable species. Measures to ensure the yew’s conservation are needed, especially at its southernmost localities in the High Atlas.
Źródło:: Dendrobiology; 2017, 78; 63-74
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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