Jana Bedek

Jana Bedek
Ruđer Bošković Institute; Croatian Biospeleological Society

PhD

About

39
Publications
11,822
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259
Citations
Citations since 2017
16 Research Items
137 Citations
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20172018201920202021202220230510152025
20172018201920202021202220230510152025
20172018201920202021202220230510152025

Publications

Publications (39)
Article
Full-text available
Darkness is the hallmark of all subterranean habitats and, to some degree, of many surface habitats. Many surface animals that live in semi-dark habitats, such as freshwater benthos, are photophobic. Yet, few of them can colonize caves and form subterranean populations. We hypothesize that phenotypic plasticity induced by darkness enables surface c...
Article
Full-text available
Biology Students Association – BIUS (BIUS) from Zagreb, Croatia is a non-government and non-profit association founded in 1999 by biology students from the Faculty of Science, University of Zagreb. Aiming to develop future experts in different fields of biology, BIUS is composed of groups that specialize in various subject areas. Besides holding di...
Article
Full-text available
Many aspects of cave animal biology cannot be understood through field observations alone. Access to some subterranean habitats is often technically challenging, rendering long-term monitoring of cave-dwelling species or investigating some aspects of their biology difficult. Also, contemporary research questions and methods require sampling individ...
Book
Full-text available
As karst phenomena, caves represent the most secluded, but also the most fascinating natural values of the Island of Mljet. Many of them contain a diverse rare and endemic subterranean fauna; impressive cave formations (speleothems), and archaeological artifacts which bear witness to the first inhabitants of the Island of Mljet who frequented the u...
Article
Full-text available
Projektom Biospeleološka istraživanja i inventarizacija faune u speleološkim objektima Nacionalnog parka Sjeverni Velebit u suradnji Javne ustanove "Nacionalni park Sjeverni Velebit" i Hrvatskog biospeleološkog društva, biospeleološki je istraženo 5 speleoloških objekata: Jama pod Budinom kosicom, Jama u kuku, Sniježnica u Medvjeđoj dolini, Špilja...
Poster
Predstavljamo Prvo hrvatsko izvješće Europskoj komisiji o stanju očuvanosti vrsta i stanišnih tipova (staništa) s Priloga Direktive o staništima (Direktiva) za razdoblje 2013. – 2018. godine. Članak 17. Direktive nalaže državama članicama da svakih šest godina izvješćuju o stanju vrsta i staništa koristeći uniformni obrazac za sve članice EU. Glavn...
Poster
Full-text available
We present the 1st Croatian National Report to the EU Commission on the progress and implementation of Article 17 of the Habitats Directive during the period 2013-2018. The main objective of the Directive is to maintain and restore a favourable conservation status for habitat types and species of community interest. Conservation status (CS) is the...
Article
Full-text available
In the Dinaric Karst, Alpioniscus (Illyrionethes) is the taxon with the largest number of troglobiotic species (19), one of which is new and described here: A. busljetai sp. nov., found in two caves in the coastal area of North Dalmatia. Both caves are threatened by human activities (IUCN threats 1.1, 9.1.1).
Article
Species richness of terrestrial isopods is high in caves of the Dinaric Karst, which hosts ~10% of the world’s nominal oniscidean troglobionts. The most widespread taxon is the southern European genus Alpioniscus, which consists of two subgenera: Alpioniscus s.s. and Illyrionethes. Before this study, 14 nominal troglobiotic Illyrionethes taxa were...
Article
Alpioniscus (Illyrionethes) is a widespread subgenus of Trichoniscidae in the Dinaric Karst with 15 nominal troglobiotic species. Here we redescribe Alpioniscus (Illyrionethes) magnus and describe three new species (A. lossinii n. sp., A. drazinai n. sp., and A. mandalinae n. sp.) restricted to coastal areas. As a result, 18 nominal Illyrionethes s...
Book
Full-text available
The book has been published in two editions, Croatian and English. It is divided into two parts and an appendix which contains the latest research conducted on Proteus. The first part includes knowledge about the phenomenon of the Dinaric Karst and speleological, biospeleological and cave diving research, with the aim of introducing the reader to t...
Technical Report
Full-text available
Gorski kotar je biospeleološki jedno od najslabije istraženih krških dijelova Hrvatske, stoga su sva istraživanja provedena na ovom području iznimno vrijedna. Fauna je sakupljana za vrijeme speleoloških ekspedicija u sjeverozapadnom dijelu Gorskog kotara tzv. „Šverdi“ u srpnju 2005., lipnju i srpnju 2006, u jednom navratu u lipnju 2011, te lipnju 2...
Article
Peatlands in the Western Balkans are becoming rapidly reduced due to vegetation succession, further enhanced by climate change and abandonment of traditional land management practices. Currently, the peatlands of this region act as habitat islands embedded mainly in a forest landscape matrix. This allows them to host more forest and generalist spec...
Article
Full-text available
Alpioniscus (Illyrionethes) iapodicus n. sp. is described and illustrated. Representing the 14th nominal species of the subgenus Illyrionethes from the Dinaric karst, it is a troglobiotic species collected from the caves in the central part of the Lika region, Croatia. The new species belongs to the strasseri group. Morphological characters differe...
Presentation
Full-text available
Lampenflora is an invasive community of photosynthetic organisms that is developing near electrical lamps in show caves in form of visible green layers. It is composed of cyanobacteria, algae, and mosses, and in extreme cases ferns and flowering plants. Goal of this research was to determine spreading speed of macroscopic appearance of lampenflora...
Article
Full-text available
This paper presents the distribution of the terrestrial isopod Hyloniscus adonis (Verhoeff, 1927) in Croatia. It was recorded for the first time at the edge of Dubravica peat bog and the adjacent forest. Additionally, it was collected at the edges of Đon močvar peat bog. Revision of the terrestrial isopod collection of the Croatian Biospeleological...
Article
Full-text available
The Sumporače are anchialine caves of the Dinaric Karst in Mokošica near Dubrovnik, and they are special due to the presence of sulphur. As a result of the sulphur, they contain ecologically very important habitats and are part of the National Ecological Network CRO NEN. Out of three known sulphur anchialine caves, two smaller (Sumporača velika and...
Article
Full-text available
Terrestrial isopods were studied in the Dubravica peat bog and surrounding forest in the northwestern Croatia. Sampling was conducted using pitfall traps over a two year period. Studied peat bog has a history of drastically decrease in area during the last five decades mainly due to the process of natural succession and changes in the water level....
Article
Full-text available
The subterranean fauna of twelve Istrian caves, six in Slovenia and six in Croatia, is presented in this paper. Caves in the carbonate region of White Istria (Čičarija) host the richest troglobiotic fauna in comparison to caves in the carbonate littoral region of Red Istria and the intermediate fl ysh region of Grey Istria. Caves in the contact zon...
Article
Full-text available
This paper presents a checklist with historical overview and new records on the cave-dwelling terrestrial isopods (troglophiles and troglobionts) from Croatia, based on detailed analyses of available literature and unpublished data from collections. For each species the following data are quoted: the name of the taxon; synonyms; general distributio...
Book
Full-text available
In publication we have attempted to collect together part of the work carried out over the last few decades by Slovene and Croatian researchers in the field of karst underground protection. The range of topics is by no means all-encompassing, but it does represent a varied selection of subjects from the field of karst underground protection in Slov...
Article
A new species of Strouhaloniscellus (S. biokovoensis) (Trichoniscidae, Haplophthalminae) is described and illustrated from specimens collected at the bottom of a vertical cave in Mt Biokovo, Croatia. The new species is characterised by its small size (2.8 mm long), unpigmented body, absence of eyes, cephalon with three rows of tubercles, pereion wi...
Article
Thaumatoniscellus speluncae n. sp. is described from a pit on Mt Ucka in Istria, Croatia. This is the second species of the genus Thaumatoniscellus Tabacaru, 1973 of the monotypic subfamily Thaumatoniscellinae. The type species, Thaumatoniscellus orghidani Tabacaru, 1973, is only known from a single locality in southwestern Romania. A revised diagn...
Article
Thaumatoniscellus speluncae n. sp. is described from a pit on Mt Učka in Istria, Croatia. This is the second species of the genus Thaumatoniscellus Tabacaru, 1973 of the monotypic subfamily Thaumatoniscellinae. The type species, Thaumatoniscellus orghidani Tabacaru, 1973, is only known from a single locality in southwestern Romania. A revised diagn...
Data
FIGURES 12 – 15. Thaumatoniscellus speluncae n. sp., 12, antennula, paratype female (1.38 mm). 13 – 15. Holotype. 13, antenna. 14, pereopod 1. 15, pereopod 7. Scale bar = 0.2 mm.
Data
FIGURES 7 – 11. Thaumatoniscellus speluncae n. sp., mouth parts of paratype female (1.38 mm). 7, endopodite of maxilla 1. 8, exopodite of maxilla 1. 9, maxilla 2, dorsal view. 10, maxilla 2, ventral view. 11, maxilliped. Scale bar = 0.1 mm.
Data
FIGURES 1 – 6. Thaumatoniscellus speluncae n. sp., paratype female (1.31 mm). 1, lateral view of the body. 2, cephalon and pereonites 1 – 3, lateral view. 3, anterior part of the animal, frontal view. 4, pleon and pereonites 5 – 7, lateral view. 5, pleon and pereonite 7, dorsal view. 6, detail of the integument ornamentic with characteristic scales...
Data
FIGURES 16 – 21. Thaumatoniscellus speluncae n. sp., holotype. 16, genital papilla, ventral view. 17, genital papilla, lateral view. 18, exopodite of pleopod 1, ventral view. 19, pleopod 1, dorsal view. 20, pleopod 2. 21, endopodite of pleopod 1, lateral view. Scale bar = 0.1 mm.
Presentation
Full-text available
Global climate change has been recognized recently by United Nations. One of the major negative impacts is expected to be on freshwater ecosystems that guarantee not only the survival of humanity but also significant biodiversity of the Planet. Globally, Dinaric Karst is one of the most fragile and biodiversity-rich habitats. It runs from Italy, th...
Article
Full-text available
The distribution and morphological variability of the troglobiotic freshwater sponge Eunapius subterraneus Sket & Velikonja, 1984 registered in Croatia as a threatened species in the IUCN category Endangered (EN) was investigated. The research area encompassed Velika and Mala Kapela Mountains as well as the upper catchment area of the Dobra and Mre...
Article
Full-text available
The karst areas in Croatia, part of the Dinarides, have been defined biospeleologically as an area of high biodiversity in world terms, covering 26 thousand km2 in all. In this monograph we give data about the biodiversity of subterranean habitats and their biota primarily from a taxonomic perspective with special attention being paid to regional d...

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Projects

Project (1)
Project
Project „Climate change adaptation measures for sustainable natural resource management – MEMORIE”, co-funded by the European structural and investment funds, aims to improve our knowledge of the impacts of climate change on forestry, biodiversity and agriculture, and to develop ten climate change adaptation measures for these vulnerable sectors. Within the biodiversity sector, our research is focused on the development of climate change impact monitoring system for forest and peatland ecosystems, by assessing changes in terrestrial assemblages (plants, orthopterans, soil invertebrates, soil protozoans) as a consequence of natural disasters such as forest fires (Northern Velebit National Park), forest ice-breaks and windthrows (Risnjak National Park), peatland desiccation and vegetation succession (Trstenik near Rijeka). Combining field and laboratory work, this project will allow us to identify species and assemblages that can be used as indicators of climate change impact on forest and peatland biodiversity, laying the groundwork for ecosystem-based adaptation to climate change.