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Wyszukujesz frazę "Sklodowski, J" wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Zróżnicowanie wielkości ciała gatunków rodzaju Carabus w Puszczy Białowieskiej
    Autorzy:
    Skłodowski, J.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022310.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    owady
    entomologia lesna
    lesnictwo
    biegaczowate
    wielkosc
    Puszcza Bialowieska
    Carabus
    Carabidae
    białowieża primeval forest
    body length
    carabidae
    competition avoidance
    Opis:
    Nearly 27 000 individuals of 10 species belonging to the Carabus genus were caught on over 160 research plots in 13 different habitats in the Białowieża Primeval Forest, Poland. The body length of eight species was analysed. The mean body length ratio of two adjacent species ranged between 1.00−1.10, irrespective of the number of the number of Carabus species in the assemblage. The mean ratio of the smallest to the largest species increased with the number of species in the assemblage. To study coexistence mechanisms further, automatic traps were used to catch carabid beetles in decaying stumps and tree holes. In tree holes, the species C. hortensis was caught in the greatest numbers. Morphological differences and ecological preferences suggest spatio−temporal niche partitioning as the main coexistence mechanism for Carabus species in this forest.
    Źródło:
    Sylwan; 2005, 149, 02; 50-59
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Znaczenie próchniejących drzew jako mikrośrodowisk występowania epigeicznych biegaczowatych w Puszczy Białowieskiej
    The role of decaying trees as microsites for epigeic carabid beetles in Białowieża Primeval Forest
    Autorzy:
    Skłodowski, J.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1024286.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zasiedlanie
    owady
    drzewa zamierajace
    lesnictwo
    biegaczowate
    ekologia lasu
    Puszcza Bialowieska
    Carabidae
    białowieża primeval forest
    carabidae
    tree hollows
    decaying stumps
    Opis:
    In the paper attention is given to the occurrence of carabid beetles in the environment of fallen decaying trees and hollows of standing trees. The catches of carabids in these environments are on the level of 1/6 of the catching efficiency of Barber's traps, which emphasizes the importance of such environments for epigeic carabid beetles. The paper discuses the causes of carabids to visit trees, as well as differences in their activity when on trees resulting from differences in anatomy of legs of these insects.
    Źródło:
    Sylwan; 2003, 147, 12; 45-52
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zespoły chrząszczy ściółkowych w gospodarczych i chronionych borach sosnowych - efekt 15 lat ochrony rezerwatowej
    Coleoptera assemblages inhabiting managed and preserved pine forests - the effect of fifteen years of reserve conservation
    Autorzy:
    Tamutis, V.
    Skłodowski, J.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/973525.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ekologia lasu
    owady
    bor sosnowy
    rezerwaty przyrody
    drzewostany gospodarcze
    leśnictwo
    ściółka leśna
    zgrupowania zwierząt
    chrząszcze
    analiza porównawcza
    biodiversity
    transforming managed forest into reserve
    SIMPER analysis
    Opis:
    The assemblages of Coleoptera have been examined in the managed and reserved mature pine forests of Lithuania since 1997. Beetles have been sampled from the forest litter using sieves. The present study is based on the data of 20 litter samples (10 samples per each stand) taken in the period from October 2013 to February 2014. Each sample was compiled of 5 smaller ones taking all litter (up to mineral layer of the soil) from 0.04 m2 plot. During the study a total 450 adults representing 69 species of beetles was discovered. Both the average number of species and the number of individuals were found to be higher in the samples taken in reserved forest and made 10.7±1.4 and 27.2±4.9, whereas in managed forest they made 9.7±1.1 and 17.8±3.4, but the differences were not statistically significant. The proportions of phytophagous, mecetobionts and saprophagous were also bigger in reserved forest: 9.5±2.0, 7.8±2.2, 3.1±1.0 than those in the managed forest, where these groups consisted of 8.0±1.8, 4.9±1.7 and 2.8±1.6 percent of the total number of individuals in the sample, respectively. The opposite proportions were detected for zoophages, which were more ambiguous in the managed forest and were by 76.0±2.5 higher than those in the reserved forest 72.8±3.2. These differences were not statistically significant. A non−metric multidimensional scale (NMDS) using Bray−Curtis similarity matrix indicated low differences of the Coleoptera assemblages between investigated sites (final stress=0.22). The analysis using RDA showed some differences between Coleoptera assemblages inhabiting reserved forest (R) and managed forest (D), which were correlated with proportions of humified mortmass (+0.88) and biomass of moss (–0.63 and –0.71). The dissimilarity index calculated using the algorithm SIMPER, was quite high (71%), but the obtained results showed a relatively low diversity of beetle assemblages in both forests. It means that the process of transformation of the managed forest into reserve is very slow, most likely due to the fact that restoration of the microhabitats is particularly slow. Low differentiation of Coleoptera assemblages dwelling in litter is associated with low dispersal power of most coleopteran species. Thus, the establishment of new reserves in old growth pine forests can not stimulate fast increase of specific beetle diversity mainly because the regenerative processes of microhabitats seem to be extremely slow. The specific diversity of beetle assemblages was slightly higher in the reserved forests, but it was not confirmed statistically. In comparison with the managed old growth pine forest the period of fifteen years of reservation of old growth pine forest has only a very low effect on specific diversity and ecological specialization of the beetles.
    Źródło:
    Sylwan; 2015, 159, 02; 142-150
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spontaniczne odnowienie drzewostanu zaburzonego huraganem w lipcu 2002 roku
    Spontaneous regeneration of a stand disturbed by a hurricane in July 2002
    Autorzy:
    Skłodowski, J.W.
    Buszyniewicz, J.
    Domański, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989983.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Nadlesnictwo Pisz
    drzewostany pohuraganowe
    odnowienia lasu
    odnowienia naturalne
    sosna zwyczajna
    Pinus sylvestris
    sukcesja spontaniczna
    windthrow
    disturbance
    scots pine
    regenerative succession
    spontaneous regeneration
    Opis:
    Spontaneous regeneration in the hurricane−disturbed stand in the Pisz Forest District (N Poland) was registered in the years 2007−2008 and 2011−2012. Breast height diameter and crown size were measured on 10×10 m plots. The analysis also included the soil respiration rate, the decomposition rate of organic matter, soil pH, leaf area index (LAI), content of Mg, Ca, C, N and P in soil, and vegetation coverage of the forest floor. The natural regeneration was dominated by birch, followed by pine, which recolonized the disturbed stand in smaller extend, possibly because of the thick cover of organic material hindering germination and making it difficult for pine sprouts to reach the mineral soil. Spontaneous regeneration of the stand was most severely inhibited by Deschampsia flexuosa, whose growth over the entire surface was linked to the capture of excess released nitrogen resulting from the decomposition of organic matter. Mosses and lingonberry did not delay the spontaneous appearance of seedlings. The development of the natural regeneration suggests the possibility that an uneven−aged stand will emerge.
    Źródło:
    Sylwan; 2014, 158, 07; 499-508
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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