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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Revision on Scolopendromorpha (Chilopoda) from Taiwan

Chao, Jui-Lung 02 September 2002 (has links)
Between 1991 and 2002 three hundred and sixteen specimens of scolopendromorphs were collected from 100 sites in Taiwan. In total, 16 species (subspecies) of 5 genera, Scolopendra, Rhysida, Otostigmus, Cryptops, Scolopocryptops (formerly Otocryptops) were found. Three species are new by record to Taiwan, i.e., Scolopocryptops capillipedatus (Takakuwa, 1938), Scolopocryptops melanostomus melanostomus Newport, 1845 and Cryptops japonicus Takakuwa, 1934. A revisionary status, Scolopendra multidens Newport, 1844, formerly regarded as a subspecies of Scolopendra subspinipes by Kraepelin in 1903, is now a valid species, distinguished by the presence of genital appendages in males, margined tergites, and the presence of a tarsal spine on 20th leg. A new status, Scolopendra subspinipes japonica L. Koch 1878 maybe a subspecies or a geographic variation of Scolopendra multidens Newport, 1844, because they only differ in the color of head capsule and sternital paramedian sutures. But it must be demonstrated further. In the case of Scolopendra subspinipes mutilans, it may be a young S. subspinipes subspinipes, because they only differ in the color of head capsule and body size. Five previously recorded species and 2 subspecies were, however, not found on the island during this study. Based on body measurements, it is proposed that Rhysida longipes brevicornis Takakuwa, 1932 = Rhysida longipes longipes (Newport, 1845), Rhysida nuda brevicornuta Wang, 1951 = Rhysida immarginata immarginata (Porat, 1876), and Otostigmus insularis Hasse, 1887 = Otostigmus malayanus Chamberlin, 1914 = Otostigmus scaber Porat, 1876. We did not find any specimens resembling the description of Otostigmus multispinosus Takakuwa, 1937. It could have been misidentified, as the presence of a very similar species Otostigmus aculeatus Haase, 1887 on the island.
2

Možnosti užití Chilopoda, Diplopoda a Isopoda: Oniscidea k bioindikaci relativně trvalých ekologických podmínek smrkových a bukových ekosystémů Moravskoslezských Beskyd

Lazorík, Martin January 2016 (has links)
In forest management, forest typology is often used in long term planning. Its basic is forest site, which represents a relatively permanent biocoenosis with phytocoenological similarities. The basis of knowledge is synusia undergrowth (plant components), accompanied by ecological (habitat) characteristics. To changes in the development of ecological factors in the ecosystem is sensitive animal ingredients, than plants. Therefore, the long term effort of knowledge bioindicative animal ingredients, which reacts faster than the flora on induced changes in the ecosystem. In the network of 38 localities covering 12 forest site complex, occurrence of millipede, centipede and terrestrial isopoda was investigated (a method of pitfall traps, 16,189 ex., 39 species). In order to speciy of environmental characteristics, data from 30 weather stations were used, detailed pedological ressearch including soil chemistry and phytocoenological research were carried out. Obtained data were processed by MNDS, PCA and CCA analyses. The most significant factor were coverage by herbaceous vegetation and contents of Ca, and Mg in soil. Distribution of the individual species in relation to different forest site complexes was determined by CCA analysis. All three studied groups of species, i.e. millipedes, centipedes and terrestrial isopods, were evaluated as significant for bioindication within the forest ecosystems. Centipedes and millipedes enabled us to associate each FSC with a specific species. Terrestrial isopods indicated well the localities with high groundwater level and the process of peat formation. Due to the strict requirements indicator pros'tredí was using the methods set value Indicator type Lithobius nodulipes on a forest site complex 5L (Montane AshAlder) and Lithobius pelidnus to 5Y (Skeletal Fir Beech) bioinikator. Also important position had the second Hyloniscu riparius and Ligidium hypnorum 6 O/R (Nutrient medium Peat Spruce).

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