Population density of free-living mites in the ice-free areas around Syowa Station, East Antarctica
| Autor: | Yoshikuni Ohyama |
|---|---|
| Jazyk: | English<br />Japanese |
| Rok vydání: | 1977 |
| Předmět: | |
| Zdroj: | Antarctic Record, Iss 60, Pp 47-56 (1977) |
| Druh dokumentu: | article |
| ISSN: | 0085-7289 2432-079X |
| DOI: | 10.15094/00007964 |
| Popis: | Population density of free-living mites was surveyed in the ice-free areas of Ongul Islands, Langhovde and Skarvsnes in the vicinity of Lutzow-Holm Bay, Antarctica. Sampling of mites was carried out on the sandy ground without macrophytic vegetation quantitatively using a petri dish of 6 cm in diameter and 1 cm in depth in January and February 1976. Mites were isolated from the sand by the floatation method. The highest density of mite population in each ice-free area was as follows: 57 mites in a petri dishful of sand in East Ongul Island, 75 mites in West Ongul Island and 82 mites in Skarvsnes. A preliminary observation on the relationship between the population density and the habitat moisture was made along the margin of the Yukidori Valley in Langhovde. Sampling was made at 1 m intervals from the waterside. The highest density of mite population was observed at the sampling point 2-3 m away from the waterside. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|