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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Analysis of Trade with selected species of Coraciiformes, Musophagiformes, Columbiformes and Piciformes
 ZÁHOROVÁ, Lucie
International trade in fauna and flora is curently considered as one of the greatest threats to populations of many wildlife species. According to available information, some species are declining mainly due to persecution by people for meat or for trade. Illegal trade is increasing as well. Its yearly turnover is estimated to be in the order of billions of US dollars. This diploma theses analyzes the international trade with selected bird species under the CITES Convention - Asian hornbills, African turacos, South American tukans and arassari, and pigeons and doves during the period from 1990 till 2015. Although the CITES Convention has proven to contribute to protecting biodiversity and protecting endangered species by monitoring and regulating the trade with them, it has its limitations and shortcomings. These are described in this diploma thesis on the example of some specific cases.
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Evaluation of breeding of birds of the order hornbills (Bucerotiformes) in selected zoos in the Czech Republic
 ZÁHOROVÁ, Lucie
Hornbills have often been bred in zoos during recent years, not just abroad but also in the Czech Republic. These birds, characterized by long curved bill and casque, play an important ecological role in the wild as "forest farmers". Unfortunately their populations have been decreasing in the wild. Hornbills are facing habitat loss and food decline, they are hunted for their meat and for trade. Also some species are now commonly bred in captivity, the experience with breeding and rearing hornbills is not very extensive. Moreover, their specific nesting biology together with complicated social bonds rank hornbills to species with very low reproductive success. Therefore, appropriate breeding technique based on knowledge of the biology and ecology of the species is essential for successful breeding and rearing. The work effort of all zoos can in this way contribute to protection of the species in the wild. This theme describes conditions and results of hornbill breeding in Liberec zoo, Dvůr Králové zoo and Zlín Lešná zoo. Its goal is to determine the main factors influencing hornbill´s nesting in captivity.
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