Abstract

We surveyed all known historical sites and potential suitable habitats

of Alcon Blue based on satellite images in the western part of Ljubljansko barje.

The species was present only in the area between Vrhnika and Ligojna. In this area

two habitat patches were occupied by Alcon Blue at the distance of 300 meters. The

population size was determined with MRR (mark-release-recapture) method and egg

counting method on the host plants the Marsh Gentians. Even though the habitat patches

are relatively close to each other, we have not observed any migrations between them.

However, we recorded some individuals outside both habitat patches. The MRR method

gave us the estimate of daily population sizes for habitat patch A between 50 and 130

individuals, and approximately 50 for patch B. Total estimated size of population A and

B was around 30 individuals according to egg counting method. We determined that the

density of the eggs and adult specimens was smaller and daily population sizes were

larger on the bigger habitat patch. The main reason for this observation is probably the

shortage of host plants on the smaller habitat patch, because all surrounding meadows

were mowed during the flowering of the Marsh Gentians. We also observed that the

females prefer to oviposit nearer to the centres of the habitat patches. Besides mowing

during the flight period, the two main factors that negatively affect the population Alcon

Blue in the studied area, are habitat fragmentation and hydro-melioration measures

that permanently lower the levels of groundwater which changes the species habitat.

Keywords

Phengaris alcon , distribution, conservation, threats

Keywords

Sciuridae, modular organization, cranium, RV coefficient, Spermophilus citellus

Abstract

Foliar epidermal micro-morphology and venation patterns of eleven

species representing four genera in the family Combretaceae revealed stable foliar

anatomical characters that are diagnostic and are important in separating the taxa.

Distinguishing characters of taxonomic significance in the cells and tissues structures

of the species include epidermal cell shape, stomata type, stomata frequency, stomata

index, trichome micro-morphology and frequency, areolation shape, vein micromorphology

as well as distribution of druses within areoles. Numerous epidermal

striations on the abaxial surface of lamina are diagnostic for Combretum zenkeri while

C. platypterum is distinctly separated from other taxa by the possession of staurocytic

stomata in addition to the prominent anomocytic and/or anisocytic stomata . The simple

unicellular non-glandular trichomes in the genus Combretum indicate a generic

attribute classificatory for members of the genus. Druses within the areoles classify C.

platypterum, Terminalia catappa, T. superba and Quisqualis indica within and across

the genera studied. This study which is in line with most previous studies revealed

that characters of epidermal micromorphology and venation patterns are important in

the identification and separation of the taxa discussed, and that the placement of the

species in each of their respective genus should be maintained.

Keywords

classification, Combretaceae, diagnostic, epidermal micromorphology, spot character, systematic, venation pattern

Keywords

biofilm, plastics, SEM, isotopic composition of carbon, co-cultivation, UV sterilization

Keywords

Candida parapsilosis , detection methods, emerging pathogen, novel primers, conventional PCR, species specific

Abstract

The University of Ljubljana was founded in 1919 including Botanical

Institute and Zoological Institute. Among celebrations of their cenntenial, a one-day

symposium entitled „100 Years of Biology at the University of Ljubljana“ was held on

21 November 2020 at the Department of Biology of Biotechnical Faculty of University

of Ljubljana. The symposium presented the research groups of the Department of Biology

(Chairs of Zoology, Botany and Plant Physiology, Physiology, Anthropology in

Ethology, Ecology and Environment Conservation, Biochemistry, Molecular Genetics

and Microbiology, Biological Education, University Botanic Garden Ljubljana) and

National Insitute of Biology (Departments of Biotechnology and Systems Biology,

of Organisms and Ecosystems Research, of Genetic Toxicology and Cancer Biology,

Marine Biology Station). The paper presents a majority of research groups that outline

their historical bacground and pedagogical, scientific research and professional

activities today.

Keywords

biology, University of Ljubljana, 100 years