Dinaric karst—Geography and geology

Hajna, Nadja Zupan

doi:10.1016/b978-0-12-814124-3.00039-x

Cited by 8 publications

(7 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Around 1,000 cave spider species have been recorded worldwide (Mammola and Isaia, 2017), 10% of which are found in the Dinarides. This exceptional diversity could be explained by the abundance of suitable habitat composed of more than 20,000 karstic caves (Zupan Hajna, 2019), by habitat heterogeneity (Bregović and Zagmajster, 2016), and by the long-term climatic stability and high productivity of the region (Culver et al, 2006). During the Pleistocene, the Dinarides remained mostly ice-free (Mihevc et al, 2010), giving lineages the opportunity to survive, disperse and colonize new caves.…”

Section: Introductionmentioning

confidence: 99%

Life-history traits drive spatial genetic structuring in Dinaric cave spiders

et al. 2022

View full text Add to dashboard Cite

The subterranean ecosystem exerts strong selection pressures on the organisms that thrive in it. In response, obligate cave-dwellers have developed a series of morphological, physiological, and behavioral adaptations, such as eye reduction, appendage elongation, low metabolic rates or intermittent activity patterns, collectively referred to as troglomorphism. Traditionally, studies on cave organisms have been hampered by the difficulty of sampling (i.e., small population sizes, temporal heterogeneity in specimen occurrence, challenges imposed by the difficult-to-access nature of caves). Here, we circumvent this limitation by implementing a museomics approach. Specifically, we aim at comparing the genetic population structures of five cave spider species demonstrating contrasting life histories and levels of troglomorphism across different caves in the northern Dinarides (Balkans, Europe). We applied a genome-wide hybridization-capture approach (i.e., HyRAD) to capture DNA from 117 historical samples. By comparing the population genetic structures among five species and by studying isolation by distance, we identified deeper population structuring and more pronounced patterns of isolation by distance in the highly troglomorphic Parastalita stygia and Stalita pretneri ground dwellers, while the three web-building Troglohyphantes species, two of which can occasionally be found in surface habitats, showed less structured populations compatible with higher dispersal ability. The spatial distribution of genetic groups revealed common phylogeographic breaks among lineages across the studied species, which hint at the importance of environmental features in driving dispersal potential and shaping underground diversity.

show abstract

Section: Introductionmentioning

confidence: 99%

Life-history traits drive spatial genetic structuring in Dinaric cave spiders

et al. 2022

View full text Add to dashboard Cite

show abstract

“…For detailed information and GenBank numbers see Table S2. In Phoxinus, of the eight mt lineages dispersed in Dinaric Karst, four correspond to species (1, P. lumaireul; 5, P. csikii; 6, P. krkae; 7, P. karsticus), while the status of four (2,3,4,8) has not yet been resolved. In addition, there are six sub-lineages within lineage 1 (1a-1f), and two within 5, of which 1d, 1f and 5b are not found in Dinaric Karst.…”

Section: Dna Extraction Amplification and Sequencingmentioning

confidence: 99%

“…One of the best researched karst areas is Dinaric Karst, located in the western Balkans and extending from Italy to Albania along the Adriatic coast. The hydrology of this mostly carbonate region is well studied, with water draining toward both the Adriatic and the Black Sea basins [2]. Despite the high levels of precipitation, surface water courses are scarce and mostly take the form of sinking streams flowing on karst poljes (see study area for the definition) that are often interconnected underground [2].…”

Section: Introductionmentioning

confidence: 99%

“…The hydrology of this mostly carbonate region is well studied, with water draining toward both the Adriatic and the Black Sea basins [2]. Despite the high levels of precipitation, surface water courses are scarce and mostly take the form of sinking streams flowing on karst poljes (see study area for the definition) that are often interconnected underground [2]. Dinaric Karst is a biodiversity hotspot, and while it is especially known for its speleofauna [3], there is also a high species richness of epigean organisms [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Phylogeography of Phoxinus, Delminichthys, Phoxinellus and Telestes in Dinaric Karst: Which Factors Have Influenced Their Current Distributions?

2022

View full text Add to dashboard Cite

The waters of the Dinaric Karst drain into both the Adriatic and the Black Sea basins. Precipitation is high, yet surface waters are scarce, with the exception of sinking streams. Dinaric Karst is a biodiversity hotspot, with diverse speleo- and epigean freshwater fauna. The distribution patterns of taxa in Dinaric Karst have arisen from a combination of vicariance and dispersal and their alteration over time. Within fishes, there are genera that include both species that are widespread and species with restricted ranges (e.g., Phoxinus, Telestes), and genera with only restricted distributions (e.g., Delminichthys, Phoxinellus). Some (Delminichthys, Phoxinellus and Dinaric Telestes) have a similar lifestyle, specialized for dwelling in sinking streams in karst poljes. The present study compares the distribution ranges of Phoxinus, Delminichthys, Phoxinellus and Telestes in Dinaric Karst based upon their mitochondrial genetic lineages, including dating of divergence times and reconstruction of ancestral geographic ranges. The biology of Phoxinus has played a major role in its wider distribution than the other three genera, which exhibit some limited ability to migrate underground, but which cannot disperse along main river courses due to their specific adaptation for dwelling in the sinking streams of karst poljes.

show abstract

“…Situated in the locus typicus of the Dinaric karst (Zupan Hajna, 2019) within the NE slopes of Mt. Crnopac (SE part of the Velebit massif in Croatia) (Figures 1A,B), the Cerovačke Caves represent a network of subhorizontal hydrologically inactive cave channels (Figures 2A,B) in today's vadose zone.…”

Section: Introductionmentioning

confidence: 99%

Changes in Cave Sedimentation Mechanisms During the Late Quaternary: An Example From the Lower Cerovačka Cave, Croatia

et al. 2021

View full text Add to dashboard Cite

During archeological excavations in the Lower Cerovačka Cave (Mt. Velebit, Croatia), the test trench penetrated to a depth of 1.8 m. An undisturbed sequence of sediments was exposed. Considering that caves represent highly efficient sediment traps it was possible to recognize changes in the depositional mechanisms during the Pleistocene–Holocene period. Using the multiproxy approach, the mineralogical, petrographic, and biostratigraphic characterization of the cave sediments was performed. Facies analysis revealed several stages in the development of the clastic filling of cave channels. Allochthonous origin of the sediment was assumed. Sedimentation took place under various conditions from pronounced cold and dry climate during Pleistocene stages in the base of the profile, to humid periods with anthropogenic influence during the Holocene at the very top of the profile. Although traditionally these sediments were believed to be of a Pleistocene age, here for the first time a stratigraphic calibration of the profile has been performed based on luminescence dating of detrital cave sediments and radiometric dating of speleothems.

show abstract

Dinaric karst—Geography and geology

Cited by 8 publications

References 14 publications

Life-history traits drive spatial genetic structuring in Dinaric cave spiders

Life-history traits drive spatial genetic structuring in Dinaric cave spiders

Comparative Phylogeography of Phoxinus, Delminichthys, Phoxinellus and Telestes in Dinaric Karst: Which Factors Have Influenced Their Current Distributions?

Changes in Cave Sedimentation Mechanisms During the Late Quaternary: An Example From the Lower Cerovačka Cave, Croatia

Contact Info

Product

Resources

About