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    Wyświetlanie 1-8 z 8
    Tytuł:
    Bezpośrednie obserwacje zwierzyny jako element monitorowania dużych kopytnych na przykładzie łosi (Alces alces L.) w Kampinoskim Parku Narodowym
    Direct observations of wildlife as an element of the monitoring of large ungulates on the example of moose (Alces alces L.) in the Kampinoski National Park
    Autorzy:
    Nasiadka, P.
    Skubis, J.
    Wajdzik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989781.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    zwierzeta lowne
    los
    Alces alces
    monitoring
    obserwacje zwierzat
    obserwacje bezposrednie
    Kampinoski Park Narodowy
    wildlife monitoring
    direct observation
    alces alces
    Opis:
    More than 3000 direct observations of 5900 mooses were used to investigate the sex structure and growth of the population living in the Kampinoski National Park (KNP, central Poland). The study used data collected by the park service since 1998. To confirm the hypothesis that the random observations will accurately describe the population structure the experiment was performed with a theoretical population. It was a collection of 102 numbers (1−39 for females, 40−81 for males, and 82−102 for calves). Sex structure of this population was 1:1 and the growth rate was 0.6 calf/female. To provide the randomness all ‘animals' were mixed and renumbered. Each time we drew 4 numbers (like 4 random moose observed). The drawn numbers were grouped into: males, females and calves. Results of the consecutive draws were accumulated, while sex ratio and growth rate of this hypothetical population were constantly recalculated. Changes in ratios with increasing abundance of ‘recorded' moose were observed. It was assumed that the accuracy of estimates of population structure will increase with the number of observed animals and ultimately the results of the draw will show real sex structure and growth of analyzed population. The draw was repeated three times. Each time the results confirmed the hypothesis. A similar procedure was performed for empirical data from KNP. The documented direct observation of moose throughout the year provides a reliable assessment of the sex structure and population growth. At a constant, daily assessment of gender structure requires longer observation time than evaluation of growth. Application of these traits based on a small empirical material and/or short follow−up time may result in significant errors. The sex structure of moose in KNP is at the level of about 1:2, while growth at 0.8 calf/female. The values of indicators describing these characteristics are higher than previously adopted for the purposes of hunting of moose use in Poland. It would clarify the methodology of recording observations – a clear definition of calf age (0−1 years) and a separate listing of moose treated as an independent one−year age group. It is also strict principle of not combining several separate observations (e.g. summary of the daily observations) as one independent observation. The method of accumulation of direct observation to assess the gender structure and growth should be tested in other deer species.
    Źródło:
    Sylwan; 2015, 159, 07; 565-578
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzorce czasowe kolizji łosi z pociągami na terenie Kolumbii Brytyjskiej i ich wpływ na metody zapobiegające takim zdarzeniom
    Temporal patterns of moose-train collisions in British Columbia – implications for mitigation
    Autorzy:
    Jasińska, K.D.
    Bijak, S.
    Child, K.N.
    Rea, R.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/974063.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Alces alces
    Kolumbia Brytyjska
    Kanada
    łowiectwo
    zwierzęta łowne
    łoś
    kolizje z pociągami
    zmienność czasowa
    alces alces
    temporal pattern
    season
    month
    weekdays
    wildlife−train collisions
    Opis:
    Where train tracks bisect moose habitat, trains may collide with moose, impacting the local population and creating a safety concern for rail traffic. Understanding the patterns underlying these collisions, is critical for helping managers choose the right mitigation methods to reduce mortality on railways. Our objective was to analyze the long−term temporal patterns of moose−train collisions. We used data on moose−train collisions from British Columbia (Canada) obtained from Canadian National Railways and British Columbia Rail Corporation. We analysed data from collision events that occurred between 1990 and 2010, excluding 1995−1996 for which there were no data. A total number of days, when moose−train collisions occurred (LD), and a total number of moose killed from collisions (LK) were calculated in annual, seasonal and monthly resolutions. We also investigated distribution of these data for day of the week. We used chi2 and Mann−Kendall tests to investigate whether LD or LK changed over time and Pearson correlation coefficient to relate these trends to the annual moose harvest in the analysed period. The number of days in which moose−train collisions occurred varied by year and by time of year. LD occurred most often in winter and least often in summer, with the highest number being recorded in February and the lowest in July. There were no significant differences in the number of moose−train collisions on various days of the week. We found no significant trends in LD for seasons, months (except for November) and weekdays for the period under investigation. In general, LK revealed a temporal pattern as LD, however number of killed moose was significantly lower on Fridays and Saturdays comparing to other week days. Because moose−train collision patterns did not change significantly between years, we assume that the temporal patterns exhibited in our study likely hold true from year to year and can be used to inform managers considering mitigation measures aimed at reducing moose−train collisions.
    Źródło:
    Sylwan; 2020, 164, 01; 32-40
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parazytofauna wewnętrzna dzikich przeżuwaczy z Kampinoskiego Parku Narodowego
    Internal parasites of wild ruminants living in the Kampinoski National Park
    Autorzy:
    Kaczyk, J.
    Górski, P.
    Lojek, J.
    Bartosik, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/987187.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Kampinoski Park Narodowy
    jeleniowate
    Cervidae
    los
    Alces alces
    jelen europejski
    Cervus elaphus
    sarna
    Capreolus capreolus
    inwazja pasozytnicza
    pasozyty wewnetrzne
    parasitic invasions
    moose
    red deer
    roe deer
    kampinoski national park
    Opis:
    There are three native and two introduced ruminant species from deer family (Cervidae) living in wild in Poland. The native species (moose Alces alces, red deer Cervus elaphus and roe deer Capreolus capreolus) live also in the Kampinoski National Park, one of the greatest national parks in Poland, that consists of many different habitats such as various types of forest, swamps, meadows and also agricultural areas. Because of protection of this area by Polish and European law, the number of wild ruminants is high (about 350 mooses, 150 red deer and 2500 roe deer). The study was conducted in order to examine the composition of internal parasites of deer living in the Kam− pinoski National Park and to determine their frequency depending on the host species. From September 2014 to April 2015, 343 fecal samples (73 red deer, 133 moose and 137 roe deer) were collected. Standard flotation (using sodium chloride aqueous solution) and sedimentation methods were used, as well as Vajda method (to find expected larvae of lung−inhabiting nematodes). Coccidia from Eimeria genus, three species of trematodes, tapeworms from Moniezia genus, and various nematodes (families Trichostrongylidae and Protostrongylidae, genus Strongyloides, Nematodirus, Trichuris and Aonchotheca) were detected. Nematodes from Trichostrongylidae family have occurred the most frequent in all investigated deer species with the prevalence of 72.2% in moose, 52.1% in red deer and 48.9% in roe deer. Differences among hosts were statistically significant. The prevalence of other invasions has turned out much lower and without statistically significant differences between hosts, except from trematodes. The prevalence of all internal parasite invasions is high in all investigated deer species with the value 83.5%, 79.5% and 60.0% in moose, red deer and roe deer respectively. This high prevalence of parasitic infections is typical for wild ruminants and could be considered as a potential risk for domestic ruminants, because of similarity of the parasitofauna and possible migration of deer, particularly mooses.
    Źródło:
    Sylwan; 2017, 161, 04; 334-340
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Struktura ekologiczna krajobrazu a przestrzenne rozmieszczenie i warunki migracji łosia europejskiego na Polesiu Zachodnim
    Ecological structure of the landscape in relation to spatial distribution and migration of the moose in western Polesie
    Autorzy:
    Chmielewski, T.J.
    Maślanko, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/991124.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    krajobraz
    struktura ekologiczna
    zwierzeta lowne
    los europejski
    Alces alces
    liczebnosc populacji
    rozmieszczenie przestrzenne
    migracje zwierzat
    Rezerwat Biosfery Polesie Zachodnie
    landscape
    ecological nodes
    moose
    west polesie transboundary biosphere reserve
    Źródło:
    Sylwan; 2014, 158, 01; 49-60
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu roślinożernych ssaków kopytnych na odnowienie lasu w Białowieskim Parku Narodowym
    The impact of herbivorous ungulates on forest regeneration in the Białowieża National Park
    Autorzy:
    Kweczlich, I.
    Miścicki, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1023208.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    szkody w lesie
    oddzialywanie na srodowisko
    odnowienia lasu
    metody badan
    Alces alces
    lesnictwo
    Bialowieski Park Narodowy
    jelen europejski
    ssaki kopytne
    Bison bonasus
    los
    zubr
    Capreolus capreolus
    Cervus elaphus
    sarna
    ungulate herbivores
    forest regeneration
    damage
    development
    comparative sample plots
    białowieża
    national park
    strict protection
    Opis:
    Measurement results carried out on 30 comparative sample plots in 2000−2002 demonstrated negative effect of ungulate herbivores on the development of forest regeneration in the strictly protected area the Białowieża National Park. The tree height index permitted to state that cervidas and bisons were the damage−causing agents. Other indices (density, tree height sum and species diversity) were insufficient to assess the effect of wild boars.
    Źródło:
    Sylwan; 2004, 148, 06; 18-29
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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