The distribution of three Hungarian
dormouse species (Muscardinus avellanarius, Myoxus glis, Dryomys nitedula)
is shown. The authors compare their data with maps of natural vegetation
of Hungary, and indicate the original habitat requirements for each species.
According to this, the most common and most adaptive species is Muscardinus
avellanarius.
The authors also examined human
affected habitats using live-traps at 12 sites in the country during 1995
and 1996. The hazel dormouse provided the largest number of captures, natural
habitats were mostly inhabited by the fat dormouse and the forest dormouse
was the rarest in traps and occurred in human affected habitats only.
Key words: Myoxidae, Hungary,
habitat preference, distribution
Four species of dormice (family Myoxidae) are represented in the Polish fauna: Myoxus glis, Eliomys quercinus, Dryomys nitedula and Muscardinus avellanarius. They are all rare and three of them (all except M. avellanarius) are threatened with extinction. The distribution and the causes for extinction in some parts of the land are discussed.
Key words: Myoxidae, distribution,
habitats, conservation, Poland.
Five forest dormice (Dryomys nitedula Pallas, 1778) were studied in cage conditions. The level of activity was measured in terms of the percentage of time spent by an animal out of the nest, with 24-hour period taken as 100%. Air temperatures were measured in the course of the research. The dormice were shown to be mainly active at night, though with limited daytime activity. The close relationship between level of activity and mean 24-hour temperature was established.
Key words: forest dormouse
(Dryomys nitedula), 24-hour activity
In the Turopolje Valley, which occupies 600 km2 of central Croatia, 22 fish species have been registered in the Odra River and 13 species in the Sava River. All native species are classified in one of the IUCN endangered categories. During the spring floods in March and April, photophilous fish species from both rivers spawn in this inundated area. A program that has been launched called "Sava 2000" should prevent further disastrous flooding. One proposed channel would drain the valley of the Odra and would alter the ecology of these wetlands. Compromise should be found to preserve at least part of these unique ecosystems.
Key words: Freshwater fishes,
inundated area, spawning, Sava and Odra Rivers, Turopolje Valley, Croatia
The vegetation of thermophilic trampled habitats was sampled in the Bay of Kvarner according to the standard procedures of the Braun-Blanquet method. The following associations were determined: Polycarpo-Amaranthetum deflexi Pignatti 1953, Euphorbio-Oxalidetum corniculatae Lorenzoni 1964, Euphorbietum maculatae Poldini 1989, Eleusinetum indicae Pignatti 1953. Among them a new association was described: Catapodio loliacei - Herniarietum rotundifoliae ass. nova. The Euphorbia prostrata community, Trifolium repens community, and the Cynodon dactylon community were not assigned to the association. The ordination diagram (Princoor program) shows the main differences among the communities. On the first axis, there is a gradient from the most thermophilic Cynodontetum dactylon comm. and Catapodio-Herniarietum to the more mesophilous and less trampled Polycarpo-Amaranthetum and Euphorbio-Oxalidetum. On the other axis, the gradient runs from floristically simple communities with only a few C4 species such as the Polycarpo-Amaranthetum and Cynodon dactylon community to all other communities with more Eragrostietalia elements.
Key words: trampled community,
vegetation, C4 plants, syntaxonomy,
Eragrostietalia, Stellarietea mediae,
Kvarner Bay, Croatia.
In the flora of the island of Zlarin 343 autochthonous including subspontaneous plant taxons and 61 taxon in the culture have been recorded. Taxonomical, ecological and phytogeographical analysis of the autochthonous and subspontaneous flora have been done. Out of the total analysis number of species 155 of them (45.19 %) belong to the Mediterranean floral element, while 160 species (46.65 %) of therophyta dominate in the spectrum of life forms. The results of the analysis show the mediterranean character of the flora of the island of Zlarin.
Key words: the island of Zlarin,
flora, Croatia
In this work the floral composition of the Echinophoro-Elymetum farcti Gehu 1988 association has been established and stands from the Pelješac peninsula and the island of Lopud have been syntaxonomically analyzed.
Key words: Ammophiletea,
Croatian Littoral, Pelješac, Lopud