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Souto M, Gonçalves V, Pontevedra-Pombal X, Raposeiro P (2021): Records of testate amoebae in São Miguel island (Azores archipelago). v1.10. Universidade dos Açores. Dataset/Occurrence. http://ipt.gbif.pt/ipt/resource?r=tecamebas&v=1.10
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Testate amoebae; Azores; oceanic islands; new records; Testate amoebae; Azores; oceanic islands; new records
São Miguel Island (Azores Archipelago) is an oceanic island located in the middle of the North Atlantic about 1500 km off Portugal mainland.
|界定座標範圍||緯度南界 經度西界 [37.704, -25.857], 緯度北界 經度東界 [37.917, -25.125]|
|Species||Sphenoderia fissirostris, Assulina muscorum, Trinema enchelys, Trinema lineare, Trinema complanatum, Corythion dubium, Corythion pulchellum, Playfairina valkanovi, Euglypha cristata, Euglypha laevis, Euglypha acanthophora, Euglypha filifera, Euglypha strigosa, Euglypha rotunda, Cyphoderia ampulla, Tracheleuglypha dentata, Nebela collaris, Padaungiella tubulata, Padaungiella lageniformis, Quadrulella symmetrica , Planocarina carinata, Argynnia caudata, Argynnia dentistoma, Physochila griseola, Heleopera rosea, Heleopera sphagni, Centropyxis elongata, Centropyxis aerophila, Centropyxis constricta , Centropyxis discoides , Cryptodifflugia sacculus, Trigonopyxis arcula, Difflugia bacillifera, Difflugia elegans, Arcella arenaria, Arcella catinus, Cyclopyxis eurystoma, Phryganella acropodia|
|起始日期 / 結束日期||2019-08-11 / 2020-01-10|
Collections were undertaken, and occurrence data recorded during 2020 in São Miguel Island. The collectors were Martin Souto, Vitor Gonçalves and Pedro Miguel Raposeiro. Identification was done by Martin Souto and Xabier Pontevedra-Pombal. Production and analysis of scanning electron microscopy images was done by Xabier Pontevedra-Pombal.
|計畫名稱||Records of testate amoebae in São Miguel island (Azores archipelago)|
|經費來源||This work was funded by FCT– Foundation for Science and Technology (DL57/2016/ICETA/EEC2018/25).|
|研究區域描述||São Miguel Island (Azores Archipelago) is an oceanic island located in the middle of the North Atlantic about 1500 km off Portugal mainland.|
|研究設計描述||Testate amoebae collections were taken at the beginning of the growing season, between spring (February - March) and summer 2020 (May - June). In each location several types of vegetation were chosen for their homogeneity and abundance [e.g., forest, lowland shrub, shrubland, wetland, peatland, riparian communities and within these communities the most abundant bryophytes were sampled. In each subsampling site, three homogeneous subplots (10 × 10 cm) were chosen, defining a total 138 sampling points.|
Testate amoebae were collected by washing 10 X 10 cm of a wet mass of plant material. The soil was dominated by silt sized particules derived from pyroclastics, because of this, they tried to collect only the vegetable part, the top layer of mosses.
|研究範圍||The samples were taken at the beginning of the growing season in spring 2020 (february - march) and summer 2020 (may - june). In each location several types of vegetation were chosen for their homogeneity and abundance (forest, lowland shrub, shrubland, wetlands, peatland, riparian communities, etc) and within these communities the most abundant bryophytes were sampled. Testate amoebae communities were examined in 60 sites (each site, we chose 3 homogeneous subplot (10 X 10 cm) in total 180 sampling points.|
- To isolate the testate amoebae shells, the mosses were fragmented, washed and stirred in one l of distilled water and then sieved through a 300 μm mesh size to separate large moss particles. The samples were condensed by the sedimentation method and the samples stored in vials with alcohol 50% at 4°C. A small sample from each site of study were stored as reference collection. A drop of each sample was mounted on a semi-permanent slide and all tecamebas were counted and identified at ×200 and ×400 magnification. Microphotographs were taken by a Leica DFC495 camera attached to a Leica DM2500 light microscope with the aid of image analysis software (Leica Application Suite version 3.8.0). The systematics of the taxa are given in accordance with Ogden & Hedley (1980). Accepted names and authorities for vascular plants and bryophytes were checked in http://www.theplantlist.org. (June 2020). The taxa are listed in alphabetical order and major taxonomic groups, together with their brief descriptions, habitats, localities, collection dates, and accession numbers.