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Diatoms from Deserta Grande (Madeira Archipelago, Portugal)

Latest version published by Universidade dos Açores on Oct 21, 2020 Universidade dos Açores

This dataset presents the distribution and diversity of epilithic diatoms collected in two field campaings at Deserta Grande Island (Madeira archipelago, Portugal).

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 150 records.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 150 records in English (11 KB) - Update frequency: unknown
Metadata as an EML file download in English (21 KB)
Metadata as an RTF file download in English (11 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Gonçalves V, Ritter C, Marques H, Teixeira D, Raposeiro P M (2020): Diatoms from Deserta Grande (Madeira Archipelago, Portugal). v1.3. Universidade dos Açores. Dataset/Occurrence. http://ipt.gbif.pt/ipt/resource?r=diatdes&v=1.3

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Universidade dos Açores. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 03dfa40e-3887-4648-8fc2-e72e0bd09fbd.  Universidade dos Açores publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Portugal.

Keywords

Bacillariophyta; oceanic islands; freshwater systems; terrestrial systems; Madeira archipelago; Desertas subarchipelago

Contacts

Who created the resource:

Vítor Gonçalves
Professor
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Catarina Ritter
Researcher
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Helena Marques
Researcher
Faculty of Sciences and Technology, University of the Azores Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Dinarte Teixeira
Researcher
Instituto das Florestas e Conservação da Natureza IP-RAM, Jardim Botânico da Madeira Eng. Rui Vieira, Caminho do Meio, Bom Sucesso 9064-512 Funchal Funchal Madeira PT
Pedro Miguel Raposeiro
Researcher
CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO Associate Laboratory / Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT

Who can answer questions about the resource:

Vitor Gonçalves
Professor
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Pedro Miguel Raposeiro
Researcher
CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO Associate Laboratory / Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT

Who filled in the metadata:

Vitor Gonçalves
Professor
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Catarina Ritter
Researcher
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Helena Marques
Researcher
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Dinarte Teixeira
Researcher
Instituto das Florestas e Conservação da Natureza IP-RAM, Jardim Botânico da Madeira Eng. Rui Vieira, Caminho do Meio, Bom Sucesso 9064-512 Funchal Funchal Madeira PT
Pedro Miguel Raposeiro
Researcher
CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO Associate Laboratory / Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT

Who else was associated with the resource:

Author
Vitor Gonçalves
Professor
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Author
Catarina Ritter
Researcher
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Author
Helena Marques
Researcher
Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT
Author
Dinarte Teixeira
Researcher
Instituto das Florestas e Conservação da Natureza IP-RAM, Jardim Botânico da Madeira Eng. Rui Vieira, Caminho do Meio, Bom Sucesso 9064-512 Funchal Funchal Madeira PT
Author
Pedro Miguel Raposeiro
Researcher
CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO Associate Laboratory / Faculty of Sciences and Technology, University of the Azores Campus de Ponta Delgada Rua da Mãe de Deus, s/n Complexo Científico 9500-321 Ponta Delgada Ponta Delgada São Miguel PT

Geographic Coverage

The Desertas sub-archipelago is located 20 km southeast of Madeira Island. Deserta Grande is the largest of the three islets, with an area of approximately 10 km2 and a maximum altitude of 479 m.

Bounding Coordinates South West [32.396, -16.563], North East [32.604, -16.449]

Taxonomic Coverage

Epilithic diatoms from Deserta Island (Deserta sub archipelago, Madeira Archipelago, Portugal).

Phylum  Bacillariophyta (Diatom)

Temporal Coverage

Start Date 2013-09-18
Start Date 2014-04-14

Project Data

No Description available

Title Diatom from Deserta Grande (Madeira Archipelago, Portugal)
Funding This work was funded by national funds through FCT – Foundation for Science and Technology under the PTDC/CTA-AMB/28511/2017 and DL57/2016/ICETA/EEC2018/25.
Study Area Description Desertas subarchipelago is formed by three uninhabited small islets belonging to the Madeira Archipelago located 20 km southeast of Madeira Island. Deserta Grande is the largest of the three islets, with an area of approximately 10 km2 and a maximum altitude of 479 m. The Deserta Grande geomorphology is mostly rugged, with very steep slopes, ridges and peaks. The climate is temperate oceanic and the predominant habitats are rocky slopes and small arid flatlands, with sparse vegetation. Although fauna and flora of Desertas Islands are regarded as interesting and with high conservation value, freshwater biota was never study. Freshwater habitats are reduced to temporary streams in Vale da Castanheira.
Design Description Several freshwater habitats were sampled during two field campaigns in Deserta Grande, in 2013 and 2014. Diatom samples were collected by filtering water or by brushing the bottom and walls of the pools or stream bed. Samples were treated with warm nitric acid and mounted with Naphrax©. Diatoms slides were examined under 1000x magnification using a light microscope ZEISS AXIOIMAGE A1 with differential interference contrast. Species identification followed European diatom floras. At least 400 valves were counted in each sample.

The personnel involved in the project:

Sampling Methods

Diatoms were sampled with help of a toothbrush to remove the biofilm and placed into a tray with a little water. The resulting suspension was collected in a plastic bottle, fixed with Lugol iodine and stored prior to analysis.

Study Extent Diatoms were sampled from several freshwater habitats were sampled during two field campaigns in Deserta Grande, in 2013 and 2014.
Quality Control Samples for diatom analysis were following the National and European recommendations.

Method step description:

  1. Diatom slides were mounted with Naphrax, and at least 400 valves per sample. were counted and identified to species or variety level under oil-immersion phase contrast light microscopy using a ZEISS AXIOIMAGE A1 microscope. General diatom floras were consulted for diatom identification.

Additional Metadata

Alternative Identifiers 03dfa40e-3887-4648-8fc2-e72e0bd09fbd
http://ipt.gbif.pt/ipt/resource?r=diatdes