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    Wyświetlanie 1-8 z 8
    Tytuł:
    "Zwariowane" głuszce?
    Are the capercaillie "crazy"?
    Autorzy:
    Zawadzka, D.
    Zawadzki, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1026379.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zachowanie sie zwierzat
    zachowania agresywne
    lowiectwo
    ptaki lowne
    lesnictwo
    gluszec
    capercaillie
    behaviour
    aggression
    small population
    Opis:
    The capercaillie Tetrao urogallus is a species whose numbers and distribution have been declining for more than 100 years. The average escape distance capercaillie amount to about 30 to 150 metres. However, some birds do not escape but, on the contrary, come closer towards people. The cases of tame and fearless behaviour of capercaillie have been occurring more frequently lately. The hens look for man's company and appear in human settlements, whereas cocks show aggression and attack people, animals or vehicles. The aggression of cocks accompanies the disturbed lekking behaviour. The aggressive cocks were found throughout the all year, yet most frequently during lekking. The fearless behaviour of hen occurs only in spring and recurs in the subsequent years. Disturbances in the behaviour of capercaillies have a physiological basis and are not the manifestation of a synanthropisation of the species. The fearless and aggressive capercaillies constitute about 1% of the population within the range of their distribution. They live in small isolated populations mainly in Central Europe.
    Źródło:
    Sylwan; 2003, 147, 03; 84-88
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka drzew gniazdowych dzięcioła czarnego w Puszczy Augustowskiej
    Characteristics of the nesting trees of the Black Woodpecker in the Augustow Forest
    Autorzy:
    Zawadzka, D.
    Zawadzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/989060.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Augustowska
    lasy
    fauna
    ptaki
    dzieciol czarny
    Dryocopus martius
    gniazdowanie
    drzewa gniazdowe
    dryocopus martius
    cavities
    nesting trees
    pinus sylvestris
    Opis:
    The Black Woodpecker Dryocopus martius excavates nesting holes in big trees and use dead wood for foraging. It is considered as a key and an indicator species in the protection of biodiversity of forest ecosystems, because its cavities condition the possibility of breeding the biggest secondary cavity−nesters, bats, and some species of wasps. We studied preferences of the Black Woodpecker towards the nesting trees in the Augustów Forest (NE Poland). It is an extensive forest complex covering 114 000 ha, dominated by fresh and mixed fresh coniferous forest sites. Scots pine Pinus sylvestris occupies 78% of forest area. Stands older than 100 years cover about 18% of the study area. We searched for trees with cavities of the Black Woodpecker in stands older than 60 years. We identified tree species, their age and health condition. The breast height diameter and height of trees and height of the cavities above ground were measured. Additionally, cavity entrance orientation were estimated. We found a total number of 150 nesting trees with 229 cavities excavated by the Black Woodpecker. Pines constituted 95% of nesting trees. Cavities were found also in Betula pendula and Populus tremula. Live trees predominated among trees with cavities. Dead trees (only pines) constituted 12% of all. More than one (form 2 to 6) cavity entrances were recorded in almost 30% of nesting trees. Woodpeckers excavated cavities in pines in age from 92 to 222, 159 years old on average. Taken together, 90% of cavity pines were older than 110 years. The height of nesting trees varied from 21 to 37.5 m (30.5 m on average), and its breast height diameter was 32−96 cm with mean of 54 cm. Over 90% of trees with woodpeckers' cavities had dbh larger than 40 cm, and almost 50% between 50 and 60 cm. The mean height of cavity entrances was 12.8 (6−27) m. There was no dependence between the height of cavities and the thickness of trees. The entrance orientation was dominated by east and north (together 58%). Birds selected the least often an entrance in southwest (only 2.3%). The Augustów Forest is the only study plot in Europe, where so strong domination of pines among nesting trees of the Black Woodpecker was recorded. The preferred tree species in south and west part of the continent is Fagus sylvatica. The Black Woodpecker uses for nests mainly the oldest pines, but it is related to the thickness, and not directly to the age of these trees. The maintenance of pine dominated stands older than 120 years is necessary for the Black Woodpecker protection in the Augustów Forest.
    Źródło:
    Sylwan; 2017, 161, 12; 1002-1009
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany rozmieszczenia i liczebnosci gluszca Tetrao urogallus L. w Puszczy Augustowskiej oraz propozycje aktywnej ochrony
    Autorzy:
    Zawadzki, J.
    Sudnik, W.
    Zawadzka, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/820035.pdf
    Data publikacji:
    1999
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    ptaki
    wystepowanie
    fauna
    ochrona gatunkowa
    smiertelnosc
    Tetrao urogallus
    lesnictwo
    ochrona zwierzat
    rozrod zwierzat
    gluszec
    Puszcza Augustowska
    liczebnosc
    Źródło:
    Sylwan; 1999, 143, 11; 69-78
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie drzew klasyfikacji do określenia preferencji środowiskowych gatunków na przykładzie głuszca (Tetrao urogallus)
    Application of classification trees for assessment species habitat preferences on the example of capercaillie (Tetrao urogallus)
    Autorzy:
    Bolibok, L.
    Brzeziecki, B.
    Drozdowski, S.
    Zawadzka, D.
    Zawadzki, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/990006.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lowiectwo
    ptaki lowne
    gatunki chronione
    gluszec
    Tetrao urogallus
    preferencje srodowiskowe
    metody analizy
    drzewo klasyfikacyjne
    classification
    tetrao urogallus
    environmental preferences
    augustowska forest
    Opis:
    Habitat preferences of capercaillie Tetrao urogallus in the Augustowska Forest (NE Poland) were evaluated using classification trees. Data were collected on 1033 circular sampling plots localized on leks and in their vicinity with 1 km radius. Gathered information described tree stands (site conditions, age, species composition, tree density, closure, vertical structure, lower strata coverage (saplings and shrubs) and blueberry coverage (Vaccinium myrtillus) as well signs of capercaillie presence. The analysis shows that for capercaillie of key importance are tree stands growing on fresh or wet coniferous sites, more than 100 years old, with density less than 446 trees/ha, with anthill and situated more than 150 from a road.
    Źródło:
    Sylwan; 2014, 158, 04; 267-276
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Występowanie, kondycja i zagrożenia zimoziołu północnego w Puszczy Augustowskiej
    The twinflower in the Augustow Forest: occurrence, condition and threats
    Autorzy:
    Zawadzka, D.
    Zawadzki, G.
    Bednarek, J.
    Bednarek, J.B.
    Piechowska, D.
    Mikitiuk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1293182.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    lesnictwo
    lasy
    Puszcza Augustowska
    inwentaryzacja przyrodnicza
    rosliny chronione
    rosliny ginace
    zimoziol polnocny
    Linnaea borealis
    wystepowanie
    stanowiska
    kondycja
    zagrozenia roslin
    Opis:
    The twinflower Linnaea borealis L. is a rare, boreal plant species that grows in coniferous forests and is partly protected in Poland. We studied its distribution and the condition of twinflower patches in the Augustów Forest (NE Poland) describing 22 twinflower patches in total. The following features were assessed: (1) patch area, (2) distance between individual twinflowers, (3) patch density, (4) intensity of flowering, (5) fruiting, (6) main accompanying plant species, (7) plant community structure, (8) species composition and age of the forest stands, (9) canopy cover of the forest stands, (10) existing and potential threats. In the northern part of the forest where suitable pine sites dominated, twinflowers were distributed irregularly and unevenly. Twinflowers in the Augustów Forest occur in relatively big areas with individual patches covering from 100 m2 to 3000 m2, but most commonly 500–1000 m2. The mean distance to the nearest neighbouring twinflower was 1600 m (range from 250 m to 6035 m). This pattern of distribution and separating distance does allow for sexual reproduction within the studied forest stand and blooming was confirmed in 21 out of 22 patches. In four locations, intensive blooming with >50 flowers shoot/m2 was observed. We did not observe a dependency of the flowering intensity on patch size. Despite the intensive and frequent flowering, as well as the presence of fruits, which were found in 15 patches, the twinflower reproduces mainly vegetatively. Twinflowers grew in 34–166 years-old pine-spruce stands with moderate canopy cover, but there was no relationship between the age of forest stands and the size of a flower patch. Plant species, which commonly occurred with twinflowers were: Vaccinium myrtillus, Calamagrostis arundinacea, Goodyera repens, Rubus saxatilis, Fragaria vesca, Pleurosium schreberi. Twinflower communities are threatened by invasive species in the forest understory in two locations only, while in the other locations no active protection is needed and the plants should rather be protected and monitored through multifunctional forest management. We emphasise the importance of the Augustów Forest for the twinflower in Poland, because about 10% of the Polish population grows in this forest complex.
    Źródło:
    Leśne Prace Badawcze; 2017, 78, 1
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Symulacja przebudowy drzewostanow swierkowych w Bieszczadach za pomoca modelu Forkome
    Conversion simulation of spruce stands in the Bieszczady Mountains with the aid of Forkome model
    Autorzy:
    Kozak, I.
    Chlodek, D.
    Zawadzki, A.
    Kozak, H.
    Potaczala, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/45738.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    Bieszczady
    symulacja komputerowa
    model Forkome
    drzewostany swierkowe
    przebudowa drzewostanow
    lesnictwo
    modele symulacyjne
    Źródło:
    Leśne Prace Badawcze; 2007, 2; 7-26
    1732-9442
    2082-8926
    Pojawia się w:
    Leśne Prace Badawcze
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    "Fokusowe" gatunki w ochronie przyrody w lasach
    "Focal" species in nature protection in forests
    Autorzy:
    Zawadzka, D.
    Drozdowski, S.
    Zawadzki, G.
    Madej, W.
    Pierchala, P.
    Soltys, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/881676.pdf
    Data publikacji:
    2017
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
    Tematy:
    lesnictwo
    ochrona przyrody
    lasy
    gatunki chronione
    bielik
    bobr europejski
    gluszec
    wilk
    zubr
    cis
    dab
    dab Bartek
    znaczenie kulturowe
    znaczenie ekologiczne
    znaczenie spoleczne
    Źródło:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2017, 19, 1[50]
    1509-1414
    Pojawia się w:
    Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Liczebność i rozmieszczenie głuszca w Polsce w XXI wieku
    Population size and distribution of the capercaillie in Poland in the 21st century
    Autorzy:
    Zawadzka, D.
    Żurek, Z.
    Armatys, P.
    Stachyra, P.
    Szewczyk, P.
    Korga, M.
    Merta, D.
    Kobielski, J.
    Kmieć, M.
    Pregler, B.
    Krzan, P.
    Rzońca, Z.
    Zawadzki, G.
    Zawadzki, J.
    Sołtys, B.
    Bielański, J.
    Czaja, J.
    Flis-Martyniuk, E.
    Wediuk, A.
    Rutkowski, R.
    Krzywiński, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/980118.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lowiectwo
    ptaki lowne
    gatunki chronione
    gluszec
    Tetrao urogallus
    wystepowanie
    liczebnosc populacji
    rozmieszczenie przestrzenne
    Polska
    wiek XXI
    tetrao urogallus
    species distribution
    species abundance
    refuges
    poland
    Opis:
    The data on the distribution and number of the capercaillie Tetrao urogallus in Poland for the period from the end of the 20th century up to 2017−2018 is presented. The capercaillie is a sedentary forest grouse living in old mountain forests and within the boreal zone. Since more than a century, the decrease in the numbers of the species has been observed, interlinked with the extinction of isolated populations. Within the present borders of Poland, a 1925 questionnaire study noted 2200−2700 individuals. In the 1960s, the national population was estimated at 1700−2000 birds, living in five isolated populations. In 1985−1995, the population numbers of the capercaillie dropped to approx. 466−700 individuals in four regions, and in 2000 it was estimated at 470−570 birds. According to the results of the censuses performed in 2017−2018, the size of the capercaillie population risen to 523−631 individuals and 59−69 lekking grounds. Currently the capercaillie occurs in four isolated regions. These are the Western Carpathians (the Beskid Sądecki, Tatry, Gorce, Babia Góra, Beskid Żywiecki, and the Beskid Śląski ranges) where 284−326 individuals live and 35−41 leks are active. In the Solska and the Lasy Janowskie Forests (Lublin region), the population was estimated at 132−184 individuals and 12−13 lekking grounds. In the Augu− stów Forest (Podlasie region) 36−46 individuals and 5−7 leks were found. In the Bory Dolnośląskie Forest, where native capercaillies got extinct during the last decade, the reintroduction program resulted in the rebuilding of their 65−75 population (with 6−7 leks). The restitution of the species in the Piska Forest has begun. During the last 20 years, populations in the Carpathian national parks have been stable, although fluctuating in numbers. The increase in the number of individuals in the Augustów Forest as well as in the Sądecki and Beskid Śląski Mountains is an after−effect of the release of birds from breeding centers or translocations. In other strongholds, fluctuations or decreases have been recorded, including wisible in the Beskid Żywiecki Mountains.
    Źródło:
    Sylwan; 2019, 163, 09; 773-783
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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