Wyniki wyszukiwania - Biblioteka Nauki

1

Population genetic structure of Iris pumila L. in Ukraine: effects of habitat fragmentation

100%

Bublyk O. , Andreev I. , Parnikoza I. , Kunakh V. , Bublyk O. , Andreev I. , Parnikoza I. , Kunakh V.

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2

Population genetic structure of Iris pumila L. in Ukraine: effects of habitat fragmentation

100%

Bublyk O. , Andreev I. , Parnikoza I. , Kunakh V.

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nr 1

3

Effects of habitat fragmentation and forest management on the distribution of the edible dormouse Glis glis

100%

Capizzi D. , Battistini M. , Amori G.

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nr 3

EN

The factors influencing the presence/absence of the edible dormouse Glis glis (Linnaeus, 1766) in forest fragments in Mediterranean central Italy were investigated by performing repeated nocturnal surveys in 38 woodlots. The various woodlots were different from each other in terms of area, degree of isolation, and floristic and structural characteristics. The effects of different types of forest management and human activities on dormouse distribution were also analysed. Dormice occurred in all the surveyed high forests, while no sign of their presence was detected in coppices with a rotation cycle short (<18 years). There were significant differences between coppices and high forests, but not between grazed and ungrazed woodlots, and rotational and non-rotational forests. Correspondence analysis corroborated the empirical evidence, showing a close association between presence of dormice and high forests, and, to a lesser degree, rotational forests. Concerning environmental parameters, favourable woods were those with high trees and with low stem number, while the specific tree assemblages proved to be scarcely important. Wood area was more important than isolation in predicting presence or absence of this rodent, as the highest probability was associated with woodlots of 40-50 ha area and more. These results did not provide evidences about the importance of the amount of residual habitat in the 10 km2 surrounding the woodlot and the presence of hedgerows as ecological corridors.

4

Low level of genetic variation within Melica transsilvanica populations from the Krakow-Czestochowa Upland and the Pieniny Mts revealed by AFLPs analysis

84%

Szczepaniak M. , Cieslak E.

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nr 4

321-331

EN

Fragmented distribution, the breeding system and effects of genetic drift in small-size populations occurring at edge of the species range play an important role in shaping genetic diversity of such a species. Melica transsilvanica is a plant rare in the flora of Poland, where it reaches the northern limit of its continuous range. Amplified Fragment Length Polymorphism (AFLP) DNA profiling method was applied to measure genetic diversity among and within populations of M. transsilvanica. Additionally, genetic relationships between M. transsilvanica and Melica ciliata, two closely related species, were explored. A total of 68 plants from 7 populations of M. transsilvanica and 24 plants from 2 populations of M. ciliata, collected in Poland and outside it, were analyzed. Using 294 AFLP fragments from 3 primer combinations, accessions were grouped into two major clusters associating with M. ciliata and M. transsilvanica, respectively. Further, two subclusters, corresponding to the samples collected from the Pieniny Mts and from the Kraków - Częstochowa Upland were clearly distinguished within the M. transsilvanica group. The hierarchical AMOVA exhibited significant genetic distinction between these geographic regions (60.89%, p < 0.001). The obtained results showed that the most genetic diversity resided between the populations of M. transsilvanica (86.03%) while considerably lower genetic variation was found within the populations (13.97%), which is consistent with the results reported for self-plants. The low level of AFLP genetic variation of M. transsilvanica can be caused by the geographic isolation of populations, which preserves the dominant self-mating breeding system of the species. Individual populations of M. transsilvanica are characterized by isolated gene pools differing by a small number of loci.

5

Which species of small mammals tolerate highly urbanized areas – the study in Warsaw agglomeration and surroundings

67%

Lesiński G. , Gryz J. , Krauze-Gryz D.

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nr 4

5-13

PL

Celem pracy było określenie stopnia zasiedlania terenów zurbanizowanych przez poszczególne gatunki małych ssaków związanych z podłożem, a co za tym idzie ich tolerancji na zmiany w środowiskach wywołane urbanizacją i częstą penetracją ludzką. Badania przeprowadzono w aglomeracji warszawskiej i na terenach ją otaczających w promieniu 50 km od centrum miasta. Wykorzystano zbiory zrzutek puszczyka Strix aluco zebrane na 85 stanowiskach. Analiza materiału kostnego wykazała 15152 osobniki drobnych ssaków. Gatunkami, które najsilniej penetrowały aglomerację miejską były: Apodemus agrarius, Mus musculus, Talpa europaea, Rattus norvegicus i Microtus subterraneus. Najbliższe centrum stanowiska tych gatunków znajdowały się w odległości 1,3–2,3 km. Natomiast Microtus agrestis, Mustela nivalis, Arvicola amphibius, Neomys fodiens, Muscardinus avellanarius i Sicista betulina wykazały największy stopień unikania środowisk miejskich, a ich stanowiska najbliższe centrum znajdowały się odpowiednio w odległości: 8,2, 8,6, 8,6, 11,2, 17,8 i 20,2 km. Gatunkami, których udział w diecie sów najbardziej zmniejszał się wraz z oddalaniem się od centrum aglomeracji miejskiej, były: A. agrarius i T. europaea, podczas gdy odwrotną zależność wykazano dla M. agrestis i M. avellanarius. Małe ssaki związane z podłożem są wrażliwe na postępującą urbanizację terenu i fragmentację ich środowisk, o czym świadczy fakt, że centralna część aglomeracji warszawskiej była zasiedlana jedynie przez ok. 1/3 gatunków lokalnej fauny.

EN

The degree of penetration of urban habitats by small terrestrial mammals was studied in Warsaw agglomeration and in adjacent areas up to 50 km from the city centre. Study material consisted of pellets of the tawny owl Strix aluco collected in 85 sites, which contained 15,152 remains of individuals of small mammals. The species that penetrated city agglomeration most intensively were: Apodemus agrarius, Mus musculus, Talpa europaea, Rattus norvegicus and Microtus subterraneus. Most central sites of these species were situated 1.3–2.3 km from the city centre. Microtus agrestis, Mustela nivalis, Arvicola amphibius, Neomys fodiens, Muscardinus avellanarius and Sicista betulina showed the lowest degree of penetration of an urban agglomeration (sites closest to the city centre: 8.2, 8.6, 8.6, 11.2, 17.8 and 20.2 km, respectively). Species, whose share among the owls’ prey decreased most with the distance from the city centre, were: A. agrarius and T. europaea. The reverse pattern was found for M. agrestis and M. avellanarius. Small terrestrial mammals are sensitive to the proceeding urbanization and the central part of Warsaw agglomeration is penetrated by only 1/3 of species of the local fauna.

6

Heterogeneity of mollusc communities between and within forest fragments in a much modified floodplain landscape

67%

Kappes H. , Sulikowska-Drozd A.

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tom 24

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nr 1

7

Breeding bird communities in relation to different habitat islands

67%

Tworek S.

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2001

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tom 58

8

Wpływ nartostrad stacji narciarskiej Jaworzyna Krynicka S.A. na otaczający drzewostan

59%

Malek S. , Waclawek M. , Kroczek M. , Wieczorek T.

Acta Agraria et Silvestria. Series Silvestris

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2013

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tom 51

EN

Jaworzyna Mountain forests of the law have granted protected status as a spa forests and forests in protected zones around the spas, as well as protective forests intakes and sources of water. In addition, forests are located in the Natura 2000 site "Popradzka refuge" and the Poprad Landscape Park. As part of the 24 sample plots laid out. The aim of the study is to determine the effect of runs No. I, II and IV of the ski station Jaworzyna Krynicka SA of the surrounding stand. Performed on them, inter alia, assess damage to trees, an assessment of the X-rays of trees, an assessment of the damage to the tree canopy deciduous beech mainly by Roloff classification It was noticed a significant: change in the number of trees in the areas of research; changes in the species composition; large variation in the abundance of forest stands; increase in X-ray conifer crowns; an increase in damage to the crowns of beech in all areas of research; — inventoried damage is primarily shallow wounds and abrasion bark — wounds on trees can also be a place of infection fungal pathogens; Edges of slopes and point taken for the gondola should be reforested as soon as possible to create a forest edge.