-25.857

-25.125

37.917

37.704

2019-08-11

2020-01-10

Species

Sphenoderia fissirostris

Species

Assulina muscorum

Species

Trinema enchelys

Species

Trinema lineare

Species

Trinema complanatum

Species

Corythion dubium

Species

Corythion pulchellum

Species

Playfairina valkanovi

Species

Euglypha cristata

Species

Euglypha laevis

Species

Euglypha acanthophora

Species

Euglypha filifera

Species

Euglypha strigosa

Species

Euglypha rotunda

Species

Cyphoderia ampulla

Species

Tracheleuglypha dentata

Species

Nebela collaris

Species

Padaungiella tubulata

Species

Padaungiella lageniformis

Species

Quadrulella symmetrica 

Species

Planocarina carinata

Species

Argynnia caudata

Species

Argynnia dentistoma

Species

Physochila griseola

Species

Heleopera rosea

Species

Heleopera sphagni

Species

Centropyxis elongata

Species

Centropyxis aerophila

Species

Centropyxis constricta 

Species

Centropyxis discoides 

Species

Cryptodifflugia sacculus

Species

Trigonopyxis arcula

Species

Difflugia bacillifera

Species

Difflugia elegans

Species

Arcella arenaria

Species

Arcella catinus

Species

Cyclopyxis eurystoma

Species

Phryganella acropodia

0000-0002-5739-3090

AUTHOR

São Miguel Island (Azores Archipelago) is an oceanic island located in the

middle of the North Atlantic about 1500 km off Portugal mainland.

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.

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.

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.

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.