The results of a mycological monitoring, carried out from 2001 until 2003 in two forest reserves (in the Bükk and the mecsek mountains) within the frame of a project of the Hungarian Biodiversity monitoring System (HBmS) aiming to monitor forest reserves and managed forests, are presented. Standard sampling method had to be developed and methods of data analysis (a so-called protocol) had to be elaborated for monitoring activities
W pracy przedstawiono projekt utworzenia rezerwatów leśnych „Ulesie" i „Uścinek" na terenie Nadleśnictwa Jedwabno. Są to zachowane w stanie naturalnym drzewostany dębowe w wieku 250-280 lat. W projektowanym rezerwacie „Ulesie" występuje 77 dorodnych okazów Pseudotsuga taxifolia, a w rezerwacie "Uścinek" - kilkadziesiąt pomnikowych dębów Quercus robur.
The study of tree-hole breeding mosquitoes was carried out in the tropical rainforest of Imo State Nigeria (two rural areas and two forest reserves in some parts of Orlu Senatorial Zone) between May – October 2002. Using standard entomological procedures, two macrohabitats (natural tree-holes and bamboo traps) and two microhabitats (leaf axils of cocoyams/pineapples and leaf axils of plantain/banana) were sampled for various mosquito species. Mosquitoes were recovered from all the various biotypes sampled. Types of mosquitoes species encountered, their relative abundance, as well as genera varied signifi cantly during the study (p<0.05). Four genera of mosquitoes: Aedes, Culex, Anopheles and Toxorhynchites were recovered while 16 species of mosquitoes encountered include: Aedes aegypti, Ae. africanus, Ae. simpsoni, Ae. albopictus, Ae. stokesi, Ae. taylori, Ae. apicoargenteus, Culex quinquefasciatus, Cx. nebulosus, Cx. trigripes, Cx. decens, Anopheles gambiae, An. funiestus, An. coustani and Toxorhynchites viridibasis. Most of the mosquitoes showed oviposition preferences for one or more habitats. The presence of Ae. africanus, Ae. simpsoni and Ae. aegypti indicate that the study areas were at risk of yellow fever epidemic. The presence of Anopheles and Culex species ensured endemicity of malaria and fi lariasis, while the recovery of Ae. albopictus in this region suggests a possible outbreak of dengue fever in future if not properly controlled.
180 vascular plant taxa are found in the Las Mariański forest reserve, including 21 protected and endangered species. In the last 40 years, the total number of species has increased, including the number of anthropophytes. Spontaneous forest succession has taken place on previously open terrain, resulting in a slight increase in the share of species typical for the class Querco-Fagetea and a 9% decrease in the share of thermophilic species typical of the classes Festuco-Brometea, Trifolio-Geranietea and Koelerio-Corynephoretea. There was an increase in the cover coefficients for the tree layer (Acer pseudoplatanus and A. platanoides) in patches of Tilio-Carpinetum. There are fluctuations in the cover of Carpinus betulus, Tilia cordata, Fraxinus excelsior, Ulmus glabra and U. minor. Species that once formed the understory, such as Acer campestre and Fagus sylvatica, now appear in the higher layers. Comparison of present-day phytosociological relevés with those collected in the 1960s and 1990s did not reveal any significant directional changes in the oak-hornbeam woodland vegetation. Symptoms of degeneration were recorded in all of the forest communities in the reserve. For example, the cover of shrubs on the forest floor as increased. Foreign species are spreading throughout the biochore are of the oak-hornbeam woodland, which constitutes a serious threat to the flora of the nature reserve.
The paper presents dynamics (in the period 1993-2004) of selected parts of upper mountain spruce stand of primeval character growing on the area of reserve Romanka in Beskid Żywiecki Mts. The changes of species composition, volume, DBH and height distribution, storey structure, the share of standing and laying dead trees and number of regeneration as well as the stand volume increment were determined on two sample plots. In the optimum stage (advanced ageing phase) stand volume increased from 465 m³/ha to 500 m³/ha, volume of dead standing trees decreased from 61 m³/ha to 51 m³/ha and volume of downed trees inceased from 49 m /ha to 58 m³/ha. In the desintegration stage stand volume decreased from 343 m³/ha to 258 m³/ha, volume of dead standing trees decreased from 83 m³/ha to 77 m³/ha and volume of downed trees increased from 83 m³/ha to 97 m³/ha.