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Leeches (Hirudinea) and Their Usage in Teaching
Koldová, Anna ; Říhová, Dagmar (advisor) ; Škodová, Jana (referee)
TITLE: Leeches (Hirudinea) and Their Usage in Teaching AUTHOR: Bc. Anna Koldová DEPARTMENT: Biology and Environmental Studies, Faculty od Education Charles University SUPERVISOR: Mgr. Dagmar Říhová, Ph.D. ANNOTATION This diploma thesis is focused on leeches (Annelida: Hirudinea) in the Czech Republic. It provides a description of all species occurring in the Czech Republic, as well as the key to their classification into families. A detailed guideline about the organization of field trip and implementation of extracurricular teaching is part of this thesis. The field trip is focused on sampling, observation and determination of leeches in an excursion to a site with a traditional occurrence of the European medical leech Hirudo medicinalis - national nature reservation Hrabanovská černava. In addition, the work defines the advantages, disadvantages and other possibilities of application of the proposed program, and the inclusion of extracurricular education. KEYWORDS the European medicinal leech, Annelida, field trip, extracurricular lessons, Hrabanovská černava
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\kur{Hirudo medicinalis} and CITES
NIEDLOVÁ, Eva
Medicinal leech (Hirudo medicinalis Linnaeus, 1758) was common species in the Czech Republic and Europe in 18th century. Hirudo medicinalis is used for medicinal purposes for about 2000 years. As a result of disappearing of suitable habitats and thus also host species medicinal leech is an endangered animal species nowadays. Many authors write about its biology, ecology and biogeography, but no one writes about trade with it. This study is focused on the evaluation the trade with Hiurdo medicinalis using CITES Trade Database. Hirudo medicinalis has been protected by CITES (Appendix II) from 1987 and thus the trade with this species was quantified over last 25 years (1987 ? 2011). Trade of medicinal leeches was sorted according to the (1) country of origin, (2) export and (3) import countries, its (4) forms (live, bodies, specimens, extract, derivatives, powders, oils and medicine), (5) purpose of trade (commercial, scientific, personal, medical, educational and breeding in captivity) and (6) its source (animals bred in captivity, animal born in captivity till F1 generation, confiscated specimens, animals taken from the wild and pre-convention specimens). Trade trend was statistically evaluated in (1) live specimens, (2) commercial purposes and (3) Hirudo medicinalis originated from breeding in captivity and (4) from wild (all is for export and import). It was found that the most frequently and the greatest trade is with live medicinal leeches. Turkey, Romania and Germany export the largest number of the medicinal leeches from the wild and trade grows with this species originated from the captive breeding regularly.
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