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Wyszukujesz frazę "ex situ conservation" wg kryterium: Temat


Wyświetlanie 1-7 z 7
Tytuł:
Distribution, protection and restoration of Taxus baccata L. in Ukraine
Autorzy:
Hnatiuk, Oleh
Mohytych, Vasyl
Sułkowska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2041507.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
English yew
in situ
ex situ
conservation measure
natural regeneration
Opis:
English yew is one of the most endangered species in Europe. Due to the specificity of this species, its natural regeneration is quite difficult. The aim of the study was to present the current situation of distribution, protection and restoration of the species in Ukraine. The study presents some characteristics of largest natural and artificial yew populations in the country and their protection. In situ and ex situ yew populations are quite different, in terms of bioclimatic conditions what does not affect to the growth characteristics of the populations. In addition, the activities related to the natural and artificial renaturalisation of the yew were analysed. Thus, tending of tree stands, where the natural regeneration of yew was inventoried can be recommended but it should be planned very individually regarding requirements of the site. The introduction of yew seedlings in the conditions of the managed forest is very difficult. Despite the complication of obtaining planting material and high cost, it is important measure to preserve the species. In Ukraine are successful examples of the seed transfer of yew populations by about 450 km in North-East direction (Carpathian yew population) and 700 km in North direction (Crimean yew population). It is an evidence of high ecological plasticity of the species. Moreover, some recommendations that could be useful for increasing the popularization of this species throughout the country were given in conclusions. The wider use of yew in public areas across the country due to unique value of species and more convenient protection of young seedlings. It is worth to continue the inventory of yew locations at the national level and study the possibilities to use as local sources to conservation of this species throughout the country.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 4; 327-335
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona dziedzictwa geologicznego -- idee fixe przyrodników czy wymóg chwili? : komunikat
Geoconservation - naturalists idee fixe or contemporary necessity?
Autorzy:
Otęska-Budzyn, J.
Powiązania:
https://bibliotekanauki.pl/articles/183345.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
georóżnorodność
dziedzictwo geologiczne
ochrona prawna
ochrona in situ i ex situ
ścieżka dydaktyczna/edukacyjna
geopark
ProGEO
geodiveristy
geological heritage
formal protection
in situ and ex situ conservation
didactic/natural trail
Opis:
W artykule przedstawiono zagadnienie ochrony abiotycznych elementów przyrody. Problem ten w świetle postępującej degradacji środowiska przyrodniczego wydaje się równie wysokiej rangi jak ochrona zróżnicowanych zbiorowisk biotycznych (roślinnych, leśnych) oraz ginących lub zagrożonych wyginięciem populacji zwierząt. Zaprezentowano pokrótce dzieje ochrony przyrody nieożywionej w ubiegłym stuleciu, jak również prac i działań podejmowanych przez geologów europejskich oraz polskich m.in. przez założenie Stowarzyszenia ProGEO. Przedstawiono formy prawnej ochrony georóżnorodności - ochrona in situ - na tle ustawodawstwa polskiego oraz nieformalnej ochrony elementów abiotycznych - ochrona ex situ we wszelkiego rodzaju ekspozycjach muzealnych, głównie w muzeach przyrodniczych i regionalnych. Projektowanie i zakładanie ścieżek dydaktycznych/ przyrodniczych wspomaganych folderami tematycznymi służy szeroko pojętej edukacji społeczeństwa w zakresie nauk o Ziemi. W ten sposób przyczyniają się one pośrednio do zachowania różnorodności flory i fauny, która jest nierozerwalnie związana z podłożem geologicznym naszej planety.
The focus of this paper is geological heritage conservation. Although perhaps less known, this kind of conservation is as important as preservation of diversified biotic communities and habitats (plant, forest) and protection of endangered and threatened animals' populations. The paper presents a brief history of abiotic nature conservation i.e. geoconservation efforts and works during the last century that have been carried out by European and Polish geologists; among other it discusses the establishment of ProGEO, the European Association for the Conservation of the Geological Heritage. Different types of formal and non-formal conservation of geodiversity are talked about - in situ protection according to the Polish legislation and - ex situ preservation in different kinds of museum expositions, particularly of natural history ones. The paper also concerns the arrangement of didactic/natural trails together with booklets that make the spread of the Earth science knowledge. The trails, under the question, are additionally useful in public education. In this way, they indirectly serve biodiversity conservation aims and that is in accordance to the holistic idea of the Earth environment development.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2007, 33, 1; 131-138
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona ex situ w Arboretum SGGW w Rogowie rodzimych gatunków roślin naczyniowych prawnie chronionych i zagrożonych
Autorzy:
Adamczyk, J.
Witkowska-Żuk, L.
Ciurzycki, W.
Powiązania:
https://bibliotekanauki.pl/articles/1019757.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Arboretum Rogow
ochrona ex situ
gatunki zagrozone
rosliny naczyniowe
gatunki chronione
lesnictwo
plants legal protected and endangered
conservation ex situ
arboretum sggw in rogów
Opis:
The paper presents collection of native vascular plant species legally protected and endangered in Poland which are in the area of Arboretum SGGW in Rogów. The article gives characteristics of plants, their distribution and condition in the arboretum and the possibility of restitution in Poland.
Źródło:
Sylwan; 2005, 149, 04; 3-14
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The current state and efficiency use of in situ and ex situ conservation units for seed harvesting in the central part of Ukraine
Autorzy:
Neyko, Ihor
Yurkiv, Zinoviy
Matusiak, Mykhailo
Kolchanova, Olena
Powiązania:
https://bibliotekanauki.pl/articles/2044109.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
tree breeding
in situ and ex situ conservation
heritability
progeny tests
seed orchards
plus trees
Opis:
Significant increase of biological stability, timber volume, and economic value of forests is impossible without refinement and improvement of the organization, and implementation of forest seed production on a genetic and breeding basis. It is possible to solve this task by creating and efficiently functioning in situ and ex situ facilities. In Ukraine, the basic principles of plus selection are envisaged, which include the selection and testing progeny of plus trees. The total number of progeny tests in Ukraine is 106 plots, in which 1,079 genotypes of plus trees are presented. Taking into account the total number of plus trees in Ukraine (4,560), only 23.7% was subjected to progeny tests. The largest number of progeny tests are represented by Scots pine (Pinus sylvestris L.) – 76 plots and a significantly smaller number of plots for English oak (Quercus robur L.) – 21. The corresponding representation of genotypes is for pine – 520, for oak – 365. The area of tree breeding units in Ukraine is very small (0.4–0.6%) of the total forest area in the region. Despite the available areas, the use of in situ and ex situ objects for harvesting seed in Ukraine is low, around 30%. In the central region of Ukraine, the share of in situ and ex situ objects from the total forest area is 0.1–0.5%. On these sites, from 0 to 54% is harvested, which is insufficient. According to the results of the conducted research, it was established that the areas of permanent forest-seed base (in situ and ex situ units) are insignificant and their use is insufficient. Testing of more than 70% of the selected plus trees is required. An important trend is to study the genotype-environment interaction in connection with trends of global climate change.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 2; 146-155
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ ażurowości drzewostanu osłaniającego na wzrost cisa pospolitego (Taxus baccata L.)
The influence of stand canopy openness on the growth of common yew (Taxus baccata L.)
Autorzy:
Niemczyk, M.
Żółciak, A.
Wrzesiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/1312166.pdf
Data publikacji:
2015
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
drzewa lesne
ochrona ex situ
cis pospolity
Taxus baccata
wzrost roslin
powierzchnie zachowawcze
drzewostany oslaniajace
gatunki oslonowe
azurowosc
common yew
ex-situ conservation plots
canopy openness
Opis:
The aim of this study was to evaluate the development of common yew, Taxus baccata L., with respect to canopy openness. The plants were growing in ex-situ conservation plantations (established in 2008) in the understory of different tree species. Eleven forest plantations belonging to the following five forest districts were inventoried: Rokita, Baligród, Kołaczyce, Międzylesie and Henryków. In each plantation, the height and height increment of 200 yews were measured and gap light transmission indices were determined. The canopy species affecting yew growth most significantly were oak (Quercus sp.) and Scots pine (Pinus sylvestris L.), followed by Norway spruce (Picea abies Karst.), silver fir (Abies alba L.) and European beech (Fagus sylvatica L.). The most favorable development of yew occurred at 30% canopy openness. An increasing light transmission index correlated with a decrease in the proportion of treelike yews. An insufficient amount of light resulted in a low height increment of yews growing under the canopy and an extended period of direct competition of yews with herbaceous species.
Źródło:
Leśne Prace Badawcze; 2015, 76, 1; 42-48
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki wstępnych badań nad zmiennością genetyczną oraz zróżnicowaniem genetycznym między populacjami wiązu górskiego (Ulmus glabra Huds.) w Polsce
Results of preliminary research on genetic variation and genetic differentiation between Wych elm populations (Ulmus glabra Huds.) in Poland
Autorzy:
Chudzińska, M.
Pałucka, M.
Pasławska, A.
Litkowiec, M.
Lewandowski, A.
Kozioł, C.
Powiązania:
https://bibliotekanauki.pl/articles/985889.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
wiaz gorski
Ulmus glabra
zmiennosc genetyczna
markery mikrosatelitarne
populacje roslin
zroznicowanie genetyczne
Polska
zasoby genetyczne
wych elm
genetic variation
microsatellite markers
genetic resources
ex situ conservation
Opis:
Wych elm (Ulmus glabra Huds.) is a rare scattered forest tree species in Poland. First studies on genetic diversity of the species in its natural range in Poland give a good basis for the management and conservation of its genetic resources. In the present study, we determined the level of genetic variation and genetic differentiation of seventeen natural Wych elm populations in Poland using nine nuclear microsatellite loci. The number of analyzed individuals was 601. The level of genetic diversity of Polish populations of Wych elm corresponded with the results of the previous studies on this species in Europe. The populations show quite low level of genetic diversity of the species on the population level and quite high diversity on the interpopulation level. A total of 119 alleles was found, with average number per locus (A) equal 6.0 and allelic richness at medium high level (AR10=4.7). Observed (Ho) and expected (He) heterozygosity reached 0.583 and 0.602 respectively. The genetic differentiation between Polish populations of Wych elm occurred at a low level (Fst=0.089). Inbreeding depression may occur in the next generations (Fis=0.031). Genetic diversity between Wych elm populations in Poland may be the result of unfavorable random processes related to the reduction of population size resulting from elm disease. To better understand the processes related to the genetic diversity of Wych elm populations, research on field elm variation should be undertaken. Such studies may give an answer to the potential influence of introgression between these species on the genetic structure of the Wych elm. Both in situ as well as ex situ conservation measures are highly recommended to preserve genetic resources of this valuable noble hardwood species in Polish landscape.
Źródło:
Sylwan; 2018, 162, 09; 727-736
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie zmienności genetycznej dla ochrony zasobów genowych cisa pospolitego w Europie
Importance of genetic variation for conservation of English yew genetic resources in Europe
Autorzy:
Litkowiec, M.
Plitta, B.P.
Lewandowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/991598.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
cis pospolity
Taxus baccata
zasoby genowe
zmiennosc genetyczna
ochrona zasobow genowych
genetic variation
genetic conservation
ex situ
in situ
english yew
Opis:
The genetic variation is considered to be a key factor for long−term survival of the species. The recognition of the existing genetic diversity is the preliminary phase in development of an effective strategy for conservation of forest tree species gene pools. Taxus baccata L. with a wide but scattered distribution in Europe is an example of rare and endangered species that needs both ex situ and in situ protection. The increase in fragmentation and isolation of populations and reduction in effective population size can cause erosion of the gene pool through increased genetic drift, increased inbreeding, reduced gene flow and decreased migration rate. As a result, local populations may be responsible for the loss of genetic variation, hence a decrease in their viability and adaptability. A few genetic analyses based on isozymes and DNA markers indicate that the yew, both in Poland and in other regions of Europe, is characterized by high levels of genetic variation within populations and moderate genetic differentiation between populations.
Źródło:
Sylwan; 2013, 157, 10; 754-760
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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