Lichen biota of tree fall disturbances in the Polish part of the Karkonosze Mts (West Sudety Mts)
The paper contains a list of 38 lichen species collected on tree fall disturbances (pit-mound-root plate complexes) in the Polish part of the Karkonosze Mts. Seven of these species are threatened in Poland: Arthrorhaphis grisea, Bacidina arnoldiana, Cladonia bellidiflora, Lichenomphalina umbelifera, Porpidia cinereoatra, Psilolechia clavulifera, Trapeliopsis gelatinosa, and two are protected by Polish law: Parmeliopsis ambigua and Pseudevernia furfuracea. Root plates with uprooting pits and mounds create conditions for the development of lichens characterized by very different habitat requirements (photolichens, hygrolichens, skiolichens). Presence of these microhabitats in the forest communities is important for preserving diversity of lichens. Among pit-mound-root plate complex the best conditions for the development of lichen biota are on the root plates. Tree fall disturbances are important microhabitats for pioneer crustose lichens.
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Recent occurrence of moss Buxbaumia viridis (Bryophyta, Buxbaumiaceae) in the Kłodzko region (Central and Eastern Sudetes, SW Poland)
A rare epixylous moss, Buxbaumia viridis (Moug. ex Lam. & DC.) Brid. ex Moug. & Nestl., was searched at historical localities in the Kłodzko region, especially in Bialskie and Bystrzyckie Mts. The species was rediscovered at two localities in the upper part of the valley of Jedlnik stream on the east slope of Iwinka Mt. in Puszcza Śnieżnej Białki Nature Reserve. This paper presents data on autecology of B. viridis at one of the rediscovered localities as well as shows its current distribution in the Kłodzko region.
Two spinturnicid mites new to the fauna of Poland (Acari: Spinturnicidae)
Eyndhovenia euryalis oudemansi (Eyndhoven, 1941) and Spinturnix emarginata (Kolenati, 1856) (Acari: Mesostigmata: Spinturnicidae) are reported in the Polish fauna for the first time. They were collected from the bat Myotis emarginatus (Geoffroy, 1806) in the Carpathians, Sudety Mts and Kraków Upland (S. Poland).
During the years 2004-2008 the distribution of the Common Adder and the Slow Worm were studied in Silesia through questionnaire directed to forest inspectorates (n=871); 83.8% of them responded. These data were tested through field work in several randomly selected inspectorates. Both species were found to be widespread in the region, with a few strongholds identified in Sudety Mts. and larger forest complexes. The Common Adder was recorded in 68.5% of forest districts which responded, while the Slow Worm – in 73.6% of those districts. Changes in distribution and population trends could not be derived, since no reliable data were available from previous years.
Provenance experiments traditionally provide information on genetic variation within tree species in adaptation ability and other traits important for commercial forestry. In this study we investigated variation in growth among 20 populations of Norway spruce (Picea abies (L.) H. Karst) at four common-garden sites of the IUFRO 1972 provenance experimental series at the age close to half of rotation. Because stand density varied among sites, we analyzed stand density-adjusted basal area (BA) and quadratic mean diameter (Dq). The examined provenances varied significantly in both analyzed traits. We identified provenances that performed consistently better or worse than average across all four sites. Among the well-growing and possibly adaptive seed sources were those from the uplands of the eastern and central Poland, Sudety Mts, and from the region of Istebna in Beskid Mts. Performance of the other populations from Beskid Mountains was average to poor, and all high-altitude populations were poor-growing. The results of this study help to verify the knowledge of genetic variation pattern among Norway spruce populations in Poland, and to guide management decisions regarding spruce planting material.
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