Екологія

Постійний URI для цього зібранняhttps://repositary.knuba.edu.ua/handle/987654321/1243

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  • Документ
    Myxomycetes from a Conservation Perspective
    (2012) Kryvomaz, Tetyana; Camino, Mayra; Minter, David
    Myxomycetes, also known as slime moulds, are poorly-known and mysterious but amazingly photogenic organisms. At first they were thought to be fungi, but now there is general agreement that their true position is among the protozoa. The traditional association with fungi remains, however: many of those who study them are mycologists, they are covered by the same nomenclatural code, and are listed in mycology's main reference work, the Dictionary of the Fungi (Kirk et al., 2008). As a result, they are also covered by our Society.
  • Документ
    Conservation aspects of some rare species from the genus Physarum (Myxomycetes) in Ukraine
    (2011) Dudka, I.O.; Kryvomaz, Т.І.; Leontyev, D. V.
  • Документ
    First steps in myxomycete conservation activities
    (2014) Kryvomaz, Tetyana
    Slime moulds are eukaryotic, phagotrophic, fungus-like organisms, which living nearly in all terrestrial ecosystems. In previous systems slime molds include several groups: Myxomycetes -“true slime moulds”, Protosteliomycetes – microscopic relatives of Myxomycetes, Dictyosteliomycetes –soil inhabitants, Copromyxida – animal dung inhabitants, Acrasida – with individual independent cells that can act as one organism, Plasmodiophoromycota – cell parasitic species. All this groups have a plasmodial stage in their life cycle. Modern systems recognize only Dictyosteliomycetes, Protosteliomycetes and Myxomycetes. Copromyxida belong to the same phylogenic branch as Amoebozoa. No close relatives are known for Acrasida and Plasmodiophoromycota. The conservation strategy model begins with Myxomycetes, characterized by a remarkable transformation from an animal-like to a fungus-like form.
  • Документ
    Passportication for Myxomycetes Conservation
    (2014) Kryvomaz, Т.І.
    Observation of myxomycetes conservation activity was made. Propose the introduction of “Environmental safety passports of species” for improving of conservation policy. First steps for conservation of myxomycetes was the creation of a myxomycetes reserve by Bruce Ing in Wales near the town of Mold, in a small town park (UK). Martin Schnittler analised 413 myxomycetes species from Germany by special conservation categories. Yuri Novozhilov proposed to include 21 endangered species of myxomycetes in the Red Book of Nature of Leningradskaya oblast in Russia, then Alexander Lebedev recommended including in the Red Book of Tver’ oblast in Russia 10 species of rare myxomycetes. Preliminary analyses of threat were made by author for 278 myxomycetes species of Ukraine. Species considered as endangered included 12 myxomycetes species, with 22 mainly nivicolous species being assessed as vulnerable. Detail evaluations were made for the biggest genus of myxomycetes, Physarum. Irina Dudka is preparing a proposal for the next edition of Red Book of Ukraine where myxomycetes were included. The IUCN Specialist Group promoting Conservation of Myxomycetes is beginning to prepare a foundation on which future conservation policy for Myxomycetes can be developed. The first myxomycete Diacheopsis metallica was published in Red List Species on the Edge of Survival. Evaluation of conservation status for 10 species of nivicolous myxomycetes and 10 species of order Trichiales was made. The information base included specimens, databases, bibliographic sources and field observations. Using the program “Geocat” (geocat.kew.org) estimates were made of extent of occurrence and occupancy. For each species population trend and threats were analyzed, and evaluation using IUCN criteria took place. For improving of conservation policy the introduction of “Environmental safety passports of species” for species of myxomycetes has been proposed to make. This certificate include of dates about morphology, metabolism, life cycle, geographical distribution of species and influence of abiotic and biotic factors with estimation of risks. As result of this scientific document will be analysis of threats and conservation recommendation for myxomycetes.