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Optical communication in the genus \kur{Anolis} and social context
VÖRÖS, Jan
This work focuses on the optical communication of the Green Anole lizard. Experiment group consisted of eleven specimen, six males and five females, each being kept separately. The animals were being kept at constant temperature and humidity levels. Seven predetermined behavior patterns were examined, occuring during a contact of two specimen, wheter two males or a male and a female. For each behavior pattern, three time data were measured duration, frequency and latency. When examining two males, size difference and territorial status of territory owner/intruder were taken into account. Each interaction was documented, in total sixty videos were made, each fifteen minutes long. The territory status positively influenced the duration and latency of Headbob C, size difference positively influenced the duration and latency of Nuchal crest and the latency of Extended throat. Sex of the animal positively influenced the duration of Dewlap. Territorial status, size differnce or sex had no influence on the rest of the behavior patterns.
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Key to boiinae snakes for The Czech Environmental Inspectorate.
VÖRÖS, Jan
Species of Boinae are of a great interest among breeders, wheter it?s due to their size, attractive colour patters or the way they hunt their prey. However, some species are endemic, threatened by the habitat loss or other causes and therefore they are subject to the CITES or they are placed on the IUCN Red List. In the last 20 years there have been numerous changes in the taxonomy of all families. New species were discovered, many were also lifted from the level of subspecies to the species level. This work focuses on 34 species of the subfamily Boinae, summarizes the hitherto published data and determination characters. It also contains data collected from web advertising sites iFauna and Terraristik, which is used to form images of the species traded in the Czech Reublic respectively neighboring Germany. Finaly the work includes a comprehensive key to all 34 snakes species complemented by illustrations.
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