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The forest area infected by mistletoe (Viscum album L.) in Europe has been increasing in recent years. The highest potential threat is posed by Viscum album subsp. austriacum, a parasite of Pinus sylvestris, and V. album subsp. abietis, a parasite of Abies alba. The paper presents a literature review related to biology, ecology and possible methods of limiting the negative impact of mistletoe on forest...
European mistletoe (Viscum album L.) is a semi−parasitic plant attacking selected tree species. It adversely affects the functioning of its hosts especially at water management level. Scots pine infestation by mistletoe subspecies Viscum album ssp. austriacum becomes more and more common. Mistletoe has been proven to have a negative impact on Scots pine cones, seedlings and seeds quality. Thus, we...
Genders of dioecious species often show secondary sexual dimorphisms (not directly related to the sex organs), which may be related to reproductive demand for resources during the year. Our working hypothesis stated that phenology influences yearly sex-specific pattern of foliar nitrogen concentration in dioecious species. The concentration of carbon (C) and nitrogen (N) of last year’s needles (on...
Taxus baccata L. has a scattered distribution and the decline of yew woodlands is observed across the entire species range. Passively protected populations in the central and northern part of their distribution are declining without human intervention. However, the establishment of new yew populations is observed in habitats that have been significantly transformed by humans. The following question...
Clathrus archeri is a saprotrophic fungus native to Australia and New Zealand and known in Europe since the beginning of the 20th century. In Poland, C. archeri was recorded for the fi rst time in 1973 and since then basidiomata of this fungus have been recorded almost 90 times, mostly in the southern part of the country. In the present study, we update the distribution of C. archeri in Poland and...
Świadomość ekologiczna użytkowników obszarów szczególnie cennych przyrodniczo jest kwestią bardzo istotną, dlatego powinna być na bieżąco monitorowana. Badaniem ankietowym w zakresie wiedzy na temat form ochrony przyrody objęto mieszkańców i turystów odpoczywających na te-renie Pojezierza Międzychodzko-Sierakowskiego. W pracy zestawiono odpowiedzi, wykonano analizy testami Kruskala-Wallisa, Chi kwadrat...
Three populations of Abies cilicica subsp. isaurica and four of A. cilicica subsp. cilicica were analyzed using 35 morphological and anatomical needle characters with the implementation of multivariate statistical methods to verify the differences between subspecies. Moreover, the possible geographic differentiation of A. cilicica subsp. cilicica populations from the East Taurus and Lebanon Mountains...
W większości analizowanych wskaźników funkcji turystycznych, siedem gmin tworzących Pojezierze Międzychodzko-Sierakowskie wypadło lepiej w porównaniu do średniej z całej Polski. Najatrakcyjniejszą turystycznie okazała się gmina Międzychód. W połączeniu z walorami kulturowymi i przyrodniczymi świadczy to o dużym potencjale i może to w przyszłości spowodować wzrost zainteresowania turystycznego tym...
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