Wszystkie pola: salix lapponum - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Physico-chemical groundwater conditions at Salix lapponum stands in Eastern Poland
Autorzy:: Serafin, A.
Pogorzelec, M.
Banach, B.
Szczurowska, A.
Mielniczuk, J.
Powiązania:: https://bibliotekanauki.pl/articles/41553.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: physicochemical condition
ground water
Salix lapponum
stand
ecological succession
Eastern Poland
Polska
Opis:: A subarctic-boreal relict species, Salix lapponum, found within the area of the Łęczna-Włodawa Lakeland (Eastern Poland), is particularly threatened with extinction due to the southern limit of its range and the specific conditions of its occurrence. This conclusion is evidenced by a systematic reduction in the number of its locations, which is accompanied by a decrease in the numbers of individuals making up its populations. The aim of the present study was to determine habitat conditions of the occurrence of Salix lapponum populations on the basis of an analysis of physico-chemical factors of groundwater at the sites associated with various stages of succession taking place in small peatland water bodies. The results of this study confirm the trend that the stands and population numbers of this species are decreasing with the intensification of ecological succession and the degree of its progress and at the same time show that this species exhibits a wide amplitude of many of the investigated factors. Among the groundwater parameters under investigation, the low level of total nitrogen, phosphorus fraction and DOC as well as the high level of Ca, pH and electrolytic conductivity can be considered to be a set of conditions that promote the maintenance of Salix lapponum populations. On the other hand, in the case of nitrates, nitrites, sulphates as well as the Na, K and Mg ions, the Kruskal-Wallis statistical test showed that the distribution of their values was invariant in relation to the studied habitats, which is probably evidence that they do not determine the development or extinction of the investigated populations in these habitats.
Źródło:: Dendrobiology; 2015, 73
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Population resources of an endangered species Salix lapponum L. in Polesie Lubelskie Region (eastern Poland)
Zasoby populacji zagrożonego gatunku Salix lapponum L. na Polesiu Lubelskim (Wschodnia Polska)
Autorzy:: Pogorzelec, M.
Banach-Albinska, B.
Serafin, A.
Szczurowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/27236.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Botaniczne
Opis:: This research, carried out in the years 2011–2013, aimed to evaluate Salix lapponum stands in the peat bogs of Polesie Lubelskie Region as well as to determine the condition of the population and the changes that have taken place since the 1950’s. An inventory carried out in 25 stands of S. lapponum known from the literature shows that the number of its stands has decreased by 80% in Polesie Lubelskie Region. In all the confirmed locations, a decrease in population numbers was also found in relation to the data known from the literature since the 1950’s. In the majority of the population locations that were considered to be extinct, there were no significant changes in habitat conditions, and ecological succession and changes in hydrological conditions could have been the cause of habitat changes only at a few sites. In the light of the study, the preservation of the S. lapponum population in Polesie Lubelskie seems to be impossible if appropriate active conservation measures are not taken immediately. Because area-based conservation, which covers most of the habitats of the studied species, does not bring the expected results, the possibility of ex situ conservation and enlargement of the populations existing in the natural environment in peat bog ecosystems in Polesie should be explored.
Badania prowadzone w latach 2011–2013 miały na celu waloryzację stanowisk Salix lapponumna torfowiskach Polesia Lubelskiego, określenie stanu populacji oraz zmian jakie zaszły od lat 50. XX w. Inwentaryzacja przeprowadzona w znanych z danych literaturowych 25 stanowiskach S. lapponum wskazuje na spadek o około 80% liczby stanowisk badanego gatunku na terenie Polesia Lubelskiego. We wszystkich potwierdzonych stanowiskach odnotowano również spadek liczebności populacji w stosunku do danych znanych z literatury od lat 50. XX w. W większości stanowisk populacji, które uznane zostały za wymarłe nie zanotowano znacznych zmian w warunkach siedliskowych, tylko w nielicznych stanowiskach przyczyną zmian habitatowych mogła być sukcesja ekologiczna, oraz zmiany w warunkach hydrologicznych. W świetle przeprowadzonych badań zachowanie populacji Salixlapponum na terenie Polesia wydaje się być niemożliwe, jeśli nie zostaną podjęte niezwłocznie odpowiednie kroki w celu jej ochrony czynnej. Ponieważ ochrona obszarowa, której podlega większość siedlisk badanego gatunku, nie przynosi oczekiwanych rezultatów, należy prowadzić działania w kierunku ochrony gatunkowej ex situ oraz zasilania populacji funkcjonujących w naturalnym środowisku.
Źródło:: Acta Agrobotanica; 2014, 67, 4
0065-0951
2300-357X
Pojawia się w:: Acta Agrobotanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Fungi inhabiting the aboveground organs of downy willow (Salix lapponum L.) and swamp willow (Salix myrtilloides L.)
Autorzy:: Zalewska, E.D.
Pogorzelec, M.
Krol, E.D.
Serafin, A.
Powiązania:: https://bibliotekanauki.pl/articles/2197184.pdf
Data publikacji:: 2019-12-30
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: downy willow
Salix lapponum
swamp willow
Salix myrtilloides
leaf
stem
mycological analysis
pathogenic fungi
rare plant species
Opis:: The species of downy willow (Salix lapponum) and swamp willow (Salix myrtilloides) are extremely rare relicts among all members of the genus Salix. In Poland, they occur only in the eastern part of the Karkonosze Mountains, Masurian Lake District, and Polesie Lubelskie area. A huge threat to both species is the drainage of peat bogs and their excessive exploitation as well as diseases caused by bacteria and fungi. The present study aimed identify fungal species colonizing the aboveground organs of plants with disease symptoms and to indicate which species may pose a threat towards S. lapponum and S. myrtilloides growing under natural conditions. This research was conducted in Polesie National Park as a part of a research project by the Ministry of Science and Higher Education. Plant health assessments were carried out in natural habitats, while aboveground organs with disease symptoms were collected for laboratory mycological analysis. Colletotrichum salicis (teleomorph Glomerella salicis), Coniothyrium concentricum, Cylindrosporium salicinum, Phomopsis spp., Truncatella angustata, and Cytospora chrysosperma (teleomorph Valsa sordida) were the fungal species most frequently isolated from leaves and shoots of both willow species. The above-mentioned fungi are dangerous plant pathogens from the family Salicaceae. There were no obligatory parasites or monophagous pathogens on the aboveground organs of downy or swamp willow. Obligatory parasites may indicate a markedly low population of host plants in Polish conditions.
Źródło:: Acta Mycologica; 2019, 54, 2; 1134
0001-625X
2353-074X
Pojawia się w:: Acta Mycologica
Dostawca treści:: Biblioteka Nauki

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