SCHENKOVÁ, Jana, Jan HELEŠIC and Jiří JARKOVSKÝ. Life strategies and habitat preferences of two competing species: Erpobdella octoculata and Erpobdella vilnensis (Annelida: Hirudinea). In Symposium RIVER BOTTOM VI Brno, Book of Abstracts. 1st ed. Brno: Masarykova univerzita v Brně, 2005, p. 54.
Other formats:   BibTeX LaTeX RIS
Basic information
Original name Life strategies and habitat preferences of two competing species: Erpobdella octoculata and Erpobdella vilnensis (Annelida: Hirudinea)
Name in Czech Životní strategie a habitatová preference dvou soutěžících druhů: Erpobdella octoculata and Erpobdella vilnensis (Annelida: Hirudinea)
Authors SCHENKOVÁ, Jana (203 Czech Republic, guarantor), Jan HELEŠIC (203 Czech Republic) and Jiří JARKOVSKÝ (203 Czech Republic).
Edition 1. vyd. Brno, Symposium RIVER BOTTOM VI Brno, Book of Abstracts, p. 54-54, 2005.
Publisher Masarykova univerzita v Brně
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/05:00012855
Organization unit Faculty of Science
Keywords in English life strategies; habitat preferences; Hirudinea; Erpobdella
Tags Erpobdella, habitat preferences, Hirudinea, life strategies
Tags International impact
Changed by Changed by: doc. RNDr. Jana Schenková, Ph.D., učo 1981. Changed: 5/12/2006 11:11.
Abstract
The Hirudinea community was studied over two years (May 1999 April 2001) in the lowland sixth order river Rokytná (Czech Republic) on four sampling points, which were different in such parameters as water velocity, depth and substratum. Erpobdella octoculata and E. vilnensis represented two dominant species from seven recorded Hirudinea species. Because the situation on the river bottom changed permanently, we measured the water depth and velocity and for each sample calculated the Froude number (Fr). According to the ranges of Fr values the samples were then sorted into three categories (from the sub-critical to the critical flow). So we did not compare habitat preferences of leeches to the same sampling point but preferences of certain hydrodynamic conditions.
Abstract (in Czech)
Společenstvo pijavic Hirudinea bylo studováno během dvouletého období (květen 1999 až duben 2001) v nížinném toku 6. řádu řece Rokytné (ČR) na čtyřech odběrových místech lišících se rychlostí proudění, hloubkou a charakterem substrátu. Erpobdella octoculata and E. vilnensis představovaly dominantní druhy mezi 7 nalezenými druhy pijavic. Vzhledem k proměnlivé situaci na říčním dně byla pro každý vzorek vyhodnocena hodnota Froudova čísla (Fr). Podle těchto hodnot byly vzorky rozděleny do 3 kategorií (od pod-kritického až po kritické proudění). U sledovaných druhů nebyly srovnávány habitatové preference pijavic pro určité místo, ale pro určité hydrodynamické podmínky.
Links
GA206/02/0902, research and development projectName: Životní strategie meio-makrozoobentosu tekoucích vod
Investor: Czech Science Foundation, Life strategy of stream meio-macroinvertebrates
MSM 143100010, plan (intention)Name: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.
Investor: Ministry of Education, Youth and Sports of the CR, Spatiotemporal biodiversity dynamics in ecosystems of Central Europe
MSM0021622416, plan (intention)Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase
Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time
PrintDisplayed: 12/10/2024 02:12