Keywords
alien flora, invasive alien plant species (IAS), standardization of terminology, stan- dardization of criteria, Flora Croatica Database module »Allochthonous plants«, Croatia
2007
Natura Croatica, Vol. 16 No.2
Abstract
The endemic butterfly Erebia stirius kleki Lorkovi}, 1955 was found at Kle~ice (Klek Mountain, western Croatia), representing the known occurrence of this subspecies in Croatia. The biology of the species, the characteristics of a newly found site and the threat status of this endemic subspecies are also briefly discussed.
Keywords
Erebia stirius kleki, endemic subspecies, Kle~ice, Croatia, threats
Abstract
This paper presents the results of surveys of ponds in the @umberak-Samoborsko gorje Nature Park. The data were collected during 2005 and 164 ponds still present in this area were registered, of at least 342 ponds that were here in the past. The trend in pond loss in this area was calculated, and the opinions of the 54 inhabitants about ponds are analysed.
Keywords
pond, pond loss, @umberak, Samoborsko gorje, Nature Park
Abstract
Upper Cretaceous deposits of the Po`e{ka gora Mts. (Croatia) formed as the result of interaction between tectonic movements, volcanism and sedimentation in conditions characteristic for moderately deep to deep sea environments. Uninterrupted Santonian-Maastrichtian succession starts with breccias and coarse-grained sandstones which grade into laminated siltstones sandstone and lamellar to thick-bedded limestones. Granite, granophyre and rhyolite fragments are predominant detrital grains in breccias and sandstones all derived from local source-area. The youngest meso to mega-scale folds in Cretaceouss sediments show an E-W strike, although bedding poles are scattered due to older deformations.
Keywords
paleostress, resedimentation, granite, rhyolite, Upper Cretaceous deposits, Po`e{ka gora Mt., Croatia
Abstract
A study of sedimentary successions in different parts of the Eocene-Oligocene Promina basin has revealed major changes in the evolution of upper Promina Beds (PB). The first one refers to the origin of the erosional surface cutting different units ranging from Cretaceous limestones to different parts of older PB. It was formed during the fall of relative sea-level, and corresponds to a sequence boundary. This surface is overlain by onlapping alluvial sediments during the lowest relative sea level, and its early rise. The next main event is marked by a transgressive surface above the alluvium, that led to the deposition of shallow-marine limestones with diverse biota in the photic zone, as well as their lagoonal equivalents. This change resulted from an increase in accommodation space outpacing the rate of sediment supply. A further change refers to the deposition of mud with planktonic foraminifera on an outer shelf resulting from a further rise in the relative sea-level, which halted deposition of limestones. The subsequent progradation of shelf and delta was related to the slowing down of the creation of accommodation space compared to the increase of sediment supply. shallow-water
Keywords
alluvium, shelf, Gilbert delta, sequence stratigraphy, Promina Beds, Paleogene, Croatia