EDP Foz Tua Otter (Lutra lutra) - Complementary Studies [2010]

The dataset contains records of otter (Lutra lutra, Mammalia) collected in the Rivers Tua and Douro sub-basins and included in the Complementary Studies (2009-10) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in February 2010 during field visits to 41 sampling points with favorable habitats in 16 10x10 km UTM squares in the river Tua sub-basin and in five sampling points in the river Douro, close to the the Tua mouth. The presence of individuals was recorded by direct observation of signs (scats).

Default

Identification

Alternate Identifier
10.15468/cdrwka
Alternate Identifier
http://ipt.gbif.pt/ipt/resource?r=edp_tua_otter_ec42
Publication Date
2020-04-24
Title
EDP Foz Tua Otter (Lutra lutra) - Complementary Studies [2010]
Abstract
The dataset contains records of otter (Lutra lutra, Mammalia) collected in the Rivers Tua and Douro sub-basins and included in the Complementary Studies (2009-10) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in February 2010 during field visits to 41 sampling points with favorable habitats in 16 10x10 km UTM squares in the river Tua sub-basin and in five sampling points in the river Douro, close to the the Tua mouth. The presence of individuals was recorded by direct observation of signs (scats).
purpose
This dataset is part of a broader initiative whereby the company EDP - Energias de Portugal S.A. will made available biodiversity data collected during impact assessment and biological monitoring studies.
Dataset Language
ENGLISH
 
Dataset Creator
  AGRIPRO - AMBIENTE - David da Fonte (General Coordinator )
Rua Castilho, N.º 65 – 3.º Esq. , Lisbon , 1250-068 LISBOA , PORTUGAL
Dataset Creator
  DBA-FCUL (Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa) - Margarida Santos-Reis (Scientific Coordinator )
Edifício C2 - Piso 2, Campo Grande , Lisbon , 1749-016 Lisboa , PORTUGAL
Dataset Creator
  DBA-FCUL (Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa) - Nuno Pedroso (Technician )
Dataset Creator
  DBA-FCUL (Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa) - Suze Chora (Technician )
Metadata Provider
  CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto - Tiago Múrias (Researcher )
Campus Agrário de Vairão , Vairão , 4485-661 Vairão ,
Dataset Contact
  EDP - Energias de Portugal - João Madeira (Manager )
Av. 24 de Julho, 12, Torre Nascente, Piso 4 , Lisbon , 1249-300 Lisboa , PORTUGAL
Keywords (GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml )
  • occurrence; observations; scats
  • otter; Lutra lutra

Geographic Coverage

Geographic Description
The data were collected in the river Tua sub-basin and in a section of river Douro sub-basin near the tua's mouth (about 15 km to the south), in the municipalities of Carrazeda de Ansiães, Alijó, Vila Flor, Murça, Mirandela, Macedo de Cavaleiros, Valpaços, Vila Pouca de Aguiar, S. João da Pesqueira and Tabuaço.

Bounding Box

West Bounding Coordinate
-7.718
East Bounding Coordinate
-7.045
North Bounding Coordinate
41.509
South Bounding Coordinate
41.055

Temporal Coverage

Range of Dates

Begin Date

2010-02-01

End Date

2010-02-09

Taxonomic Coverage

General Taxonomic Coverage
The taxonomic coverage of this dataset spans 1 phylum, 1 class, 1 order, 1 family, 1 genus and 1 species.

Taxonomic Classification

Taxonomic Rank Name
Phylum
Taxonomic Rank Value
Chordata

Taxonomic Classification

Taxonomic Rank Name
Class
Taxonomic Rank Value
Mammalia

Taxonomic Classification

Taxonomic Rank Name
Order
Taxonomic Rank Value
Carnivora

Taxonomic Classification

Taxonomic Rank Name
Family
Taxonomic Rank Value
Mustelidae

License Information

Intellectual Rights

This work is licensed under a

Creative Commons Attribution (CC-BY) 4.0 License

.

 
 
 

Projects

Projects

• ProjectEDP Biodiversity Data

Title
EDP Foz Tua Otter (Lutra lutra) - Complementary Studies [2010]

Personnel

Individual Name

Given Name
David
Surname
da Fonte
Role
AUTHOR

Personnel

Individual Name

Given Name
Margarida
Surname
Santos-Reis
Role
AUTHOR

Personnel

Individual Name

Given Name
Nuno
Surname
Pedroso
Role
AUTHOR

Personnel

Individual Name

Given Name
Suze
Surname
Chora
Role
AUTHOR

Personnel

Individual Name

Given Name
Tiago
Surname
Múrias
Role
ADMINISTRATIVE_POINT_OF_CONTACT
Abstract
The dataset contains records of otter (Lutra lutra, Mammalia) collected in plots along rivers Tua and Douro sub-basins and included in the Complementary Studies of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in February 2010, during field visits to 46 sampling plots with favorable habitats for otter located in 16 10x10 km UTM squares in the river Tua sub-basin (41) and in river Douro in the vicinity of Tua mouth (five plots). The occurrence of the target taxa was documented through 27 observations of scats identified as belonging to the target species.
Funding
The work was funded by EDP - Energias de Portugal, S.A.

Study Area Description

Descriptor

The study was conducted in the sub-basins of river Tua, prior to the construction of the Foz-Tua Hydroelectric Dam, and river Douro. The sampling was centered in suitable habitats for otter in sampling points distributed on 16 10x10 km UTM squares, covering the main course of river Tua and its main tributaries (two plots per square). In addition, five plots were sampled in river Douro, in and around the Tua mouth (one to the north - Linhares stream - and four to the south - rivers Távora, Pinhão, Torto and mouth of river Tua).

Design Description

Description
The objective of the study was to characterize and update the distribution of the otter in the river Tua's sub-basin before the dam construction, to gather quality data to support the design and implementation of mitigation and/or compensation measures. A set of five additional points was sampled in river Douro and its tributaries around the Tua mouth, to establish the baseline for the study of the connectivity between Tua and Douro's otter populations.
 
 

Methods

Methods

• Method

Method Step

Description
To be completed

Sampling

Study Extent

The data were collected in the river Tua sub-basin and in a section of river Douro sub-basin near the tua's mouth (about 15 km to the south), in the municipalities of Carrazeda de Ansiães, Alijó, Vila Flor, Murça, Mirandela, Macedo de Cavaleiros, Valpaços, Vila Pouca de Aguiar, S. João da Pesqueira and Tabuaço.

Sampling Description
Sampling was designed to cover the course of river Tua and its main tributaries, from the spring to the mouth, and a portion of river Douro and the mouths of its tributaries located in the vicinity of river Tuah. The same grid of 10x10 km squares sampled in the last otter national census (Trindade et al., 1998) was used to sample the Tua's sub-basin. In each square, two sampling plots were randomly established in the selected water line(s). In each sampling point, a transect of 200-600 m was performed along the margins, looking for signs of presence (mostly scats) in suitable places (prominent stones and vegetation in the margins of the water line). Each plot was visited once in February 2010, in dry or light rain periods, to minimize the chance of leaching of the feacal material. The scats were identified "in loco" by expert researchers.

qualityControl

Description
All identifications were performed by qualified technicians
 
 

Not available