Content of the Volume 38.
JOURNAL REVIEW
Harka, Á.: Pisces Hungarici IV.
Méri, Á. and Körmöczi, L. (2010): Temporal Pattern Analysis – a new algorithm for detecting patch size in plant populations. — Tiscia 38, 3-9.
Abstract. Pattern analysis is one of the most important evaluation methods of population structure and of community assembly rules. Several algorithms have been developed to detect the deviation of spatial arrangement of organisms from random. These algorithms reveal in general the pattern intensity that is estimated by the average size of aggregation patches. It is often important to detect the number and actual size of patches and distinguish from the random appearance of individuals.
We used the framework of python programming language to develop a new algorithm for computing patch size and position along transects. We used a long term data set originating from a dry sand grassland to test the program. The algorithm was designed to process very large data sets, and compute temporal variation of patch size distribution.
Key words: spatial pattern, PYTHON, time series, model
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Solomampianina, G and Molnár, N (2011): Occurrence of True Frogs (Ranidae L.) in the region of Szeged as related to aquatic habitat parameters. — Tiscia 38, 11-18.
Abstract. If there is any kind of change in their habitats, it is always indicated by the reaction of the amphibians. Their presence is a good indicator of environmental and ecological health. The effect of pond temperature, water depth, pH, predators and vegetation inside the ponds were investigated during one breeding period in seven different types of habitats. We also carried out a visual (capture and spawn monitoring) and an acoustic (call monitoring) method in every study site. Our goal was to ascertain which parameter of the ones mentioned above affects the True frogs the best and to identify how many species of anuran occur around Szeged. Our results show that water temperature and predators have a positive correlation with the occurring True frogs. Furthermore, pH does not seem to be an influential parameter since the measured values ranged between 7,13-8,98. As far as the faunistic study is concerned, 9 of the 10 existing anuran species in the lower Tisza region were identified and the occurrence of the 10th’s one was also theoretically proved.
Keywords: correlation, True Frogs, habitat parameters, ecological health, pond temperature, predators.
Bátori, Z., Kelemen, A., Aradi, E. and Zalatnai, M. (2011): A new population of Astragalus dasyanthus Pall. in the Southern Kiskunság (Hungary) – Tiscia 38, 19-27
A new population of Astragalus dasyanthus was found near the village of Dóc (“Pitricsomi-legelő”), in Southern Kiskunság. The habitat of the new population was compared to the habitat of another population near the village of Bugyi (“Kettős-hegy”), Northern Kiskunság. Both populations occur in the association Astragalo austriaci-Festucetum sulcatae Soó 1957. However, 20 diagnostic species can be distinguished between the habitats of the two populations. The rates of natural pioneers and generalists are higher in the habitat of Bugyi, while the rate of disturbance tolerants is higher in the habitat of the newly discovered population. Habitats of Astragalus dasyanthus are warm and dry, basiphilous, and very poor in nitrogen.
Key words: Astragalus dasyanthus, diagnostic species, ecological indicator values, habitat conditions, PCoA, phytocoenological relevés, social behaviour types
Pisces Hungarici IV
A periodical of the Hungarian Ichthyological Society (Magyar Haltani Társaság),
edited by Ákos Harka, format B5, number of pages 112, year of publication 2010
Information: mhtt@freemail.hu
The fourth volume of the periodical publication of the Hungarian Ichthyological Society was printed in October 2010. It mostly contains the proceedings of the presentations at the Tiszafüred Ichthyological Forum held in July 2010, in the form of Hungarian papers with English summaries, but it accommodates other scientific and technical papers, obituaries and a report on the activities of the Society as well. The contents of the volume is as follows:
Koščo Ján, Pekárik Ladislav: In memoriam Juraj Holčík
Nagy Sándor Alex: Elek Woynarovich 95 years
Gaebele Tibor, Guti Gábor: Habitat use of juvenile fish assemblages int he Danube at Göd
Dombai Balázs, Sály Péter, Tóth Balázs, Kiss István: Substrate-related night-time distribution of gobiid species (Neogobius spp.) in the littoral zone of the River Danube at the section of Göd and Szentendre, Hungary
Keresztessy Katalin, Keserü Balázs: Investigation on the operation of the fish pass at Kenyeri (River Rába, West Hungary)
Keserü Balázs: In situ handling of reductiv mud on the Holt-Marcal
Györe Károly, Józsa Vilmos: Monitoring of the fish community of River Tisza in 2009
Halasi-Kovács Béla, Antal László: Changes int he fish fauna of the Hungarian part of Szamos River after the cyanide pollution of 2000
Koščo Ján, Košuthová Lenka, Košuth Peter, Pekárik Ladislav, Balázs Pavol: Fish fauna of the River Hornád/Hernád in Slovakia
Szepesi Zsolt, Harka Ákos: Change in the fish fauna of the Laskó Brook (East Hungary)
Sallai Zoltán, Harka Ákos, Kontos Tivadar: Change of the fish fauna on the Hungarian stretch of the River Maros
Koščo Ján, Pekarik Ladislav, Košuthová Lenka, Balázs Pavol: Fish Fauna of Slovakia within the Natura 2000 system
Harka Ákos, Szepesi Zsolt: How many stickleback species (Gasterosteus sp.) exist in Hungary?
Hegedüs Gábor: Fisheries management and regional development in Lake Tisza region
Activity of the Hungarian Ichthyological Society in 2010 (Harka Ákos)
Guide for authors of the Pisces Hungarici