The purpose of this thesis entitled Population Status checkered blue butterfly Phengaris nausithous (Bergsträsser, 1779) on selected meadows in Broumov area was to find and evaluate the situation regarding the size and structure of populations of the butterfly Phengaris nausithous, on a recently selected location within the territory of the Czech Republic. A used monitoring method was a Capture-Recapture method at 13 locations in the PLA Broumovsko, where the occurrence of the food plant Sanguisorba officinalis, which is an integral part of the species evolution, was the key for choosing the location. The ant of the genus Myrmica is also important for the evolution of the P. nausithous. The results were evaluated using the program MARK and Statistika and then transferred into graphs and tables. In 2016 it was marked 687 of the P. nausithous and the sum for the overall metapopulation totaled 1,487 individuals. Most of the P. nausithous occurence with the number of (fixed catches) 149 was registered at the Hynčice 2 (H2) area, which was the third largest area of all studied habitats. The least number of 15 of the P. nausithous has been marked at the Hynčice 1 (H1) area. Maximum estimates of numbersfor patches were determined with the program MARK with the highest number of 367 individuals in the H2 area, whereas the lowest number of 38 individuals at the H1 area.The numbers of P. nausithous determined by the application MARK were significantly higher than those of fixed catches, indicating good aplication of methodology. It was captured a total of 49 migrations. Overall 31 % of individuals migrated and 18 % of individuals migrated within assumed total number. Most flyovers were between the areas H2 and H4 (11 flyovers) and between areas V1 and H4 was recorded flyover at a distance of 5.3 km, which can be considered as one of the longest flyovers. The average distance of migration of P. nausithous was 1.46 km. The number of immigrants for solid flyovers was set to 49 individuals and the number of immigrants to 58 individuals. The hypothesis of this work was: All the examined areas communicates using flyovers of butterflies and the system can be considered as a single metapopulation and was confirmed given on the basis of the results. Target species dependence on the density of host plant vegetation was not crucial according to the graphic representation. The first T-test found that there is no association between P. nausithous abundance and between the length of the migration between particular areas. The second T-test found that with increasing number of flyovers the length of those flyovers gradually decreased.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:315903 |
| Date | January 2017 |
| Creators | Štěpánková, Anežka |
| Contributors | Vrabec, Vladimír, Kamil, Kamil |
| Publisher | Česká zemědělská univerzita v Praze |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
Page generated in 0.0021 seconds