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National census of the Iberian wolf (2002-2003) - Presence type

The wolf subspecies present in Iberian Peninsula, Canis lupus signatus (Cabrera 1907), has in Portugal the status of Endangered (Red Book of the Vertebrates of Portugal), being covered by specific national legislation (Law no. 90/88, of 13th of December August and Decree-Law No. 54/2016, of 25 August), which grants it the Status of Protected Species. This study intents to update the existing knowledge about the situation of the wolf and gather information to support the management of the species and the environment in which it is located in Portugal.

the National Census of Wolf 2002/2003 developed by a partnership established between ICN and Grupo Lobo, whose objectives were:

- update the distribution map of this species in Portugal;

- estimate the number and distribution of existing family groups;

- analyze the evolution of the population in relation to the results obtained in the work carried out under the LIFE Program between 1994 and 1996.

After compiling the existing information about the species presence, field prospecting work was carried out, which consisted, above all, in conducting routes in search of evidence of the presence of the species, as well as listening and waiting stations.

The presence of the species was detected in about 20,000 km2, of which in only about 16,000 km2 the species is estimated to occur regularly (distribution area). The sampling unit used was the decachylomeric square of the Universal Transverse Mercator reticulum (UTM 10x10 km), since the lobe presents movements and vital areas of this order of

magnitude, and for this reason this mesh is referred to in several works as the most appropriate to study this species.

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  • Project
  • Methods
  • Data Tables

Default

Identification

Alternate Identifier

c162fd2f-5254-43fa-a32f-681084e8a293

Publication Date
2021-10-19
Title

National census of the Iberian wolf (2002-2003) - Presence type

Abstract

The wolf subspecies present in Iberian Peninsula, Canis lupus signatus (Cabrera 1907), has in Portugal the status of Endangered (Red Book of the Vertebrates of Portugal), being covered by specific national legislation (Law no. 90/88, of 13th of December August and Decree-Law No. 54/2016, of 25 August), which grants it the Status of Protected Species. This study intents to update the existing knowledge about the situation of the wolf and gather information to support the management of the species and the environment in which it is located in Portugal.

the National Census of Wolf 2002/2003 developed by a partnership established between ICN and Grupo Lobo, whose objectives were:

- update the distribution map of this species in Portugal;

- estimate the number and distribution of existing family groups;

- analyze the evolution of the population in relation to the results obtained in the work carried out under the LIFE Program between 1994 and 1996.

After compiling the existing information about the species presence, field prospecting work was carried out, which consisted, above all, in conducting routes in search of evidence of the presence of the species, as well as listening and waiting stations.

The presence of the species was detected in about 20,000 km2, of which in only about 16,000 km2 the species is estimated to occur regularly (distribution area). The sampling unit used was the decachylomeric square of the Universal Transverse Mercator reticulum (UTM 10x10 km), since the lobe presents movements and vital areas of this order of

magnitude, and for this reason this mesh is referred to in several works as the most appropriate to study this species.

Dataset Language

ENGLISH

 
Dataset Creator
  ICNF - Virgínia Pimenta (Divisão de Espécies Protegidas da Direcção de Serviços de Conservação da Natureza)

PORTUGAL

Dataset Creator
  Grupo Lobo - Inês Barroso

Dataset Creator
  Grupo Lobo/ICNF - Francisco Álvares

Dataset Creator
  ICNF - João Correia

Dataset Creator
  ICNF / Grupo Lobo - Gonçalo Ferrão da Costa

Dataset Creator
  ICNF - Luis Moreira

Dataset Creator
  ICNF - José Nascimento

Dataset Creator
  Grupo Lobo - Francisco Petrucci-Fonseca

Dataset Creator
  Grupo Lobo - Sara Roque

Dataset Creator
  Grupo Lobo - Eduardo Santos

Metadata Provider
  Instituto Superior de Agronomia - Diana Tomás

PORTUGAL

Dataset Contact
  ICNF - Teresa Pimenta (Information System Senior Officer)

1050-191

,

PORTUGAL

Dataset Contact
  ICNF - Mário Reis (Conservation and Monitoring Senior Officer)

PORTUGAL

Keywords (GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml)
  • Occurrence

Keywords (n\a)
  • Iberian wolf National CensusIberian wolfICNFSpecies distribution

Geographic Coverage

Geographic Description

Portugal mainland, specifically in the municipalities of Braga, Vianado Castelo, Porto, Vila Real, Bragança, Aveiro, Viseu, Guarda, Castelo Branco and Portalegre.

Bounding Box

West Bounding Coordinate

-9

East Bounding Coordinate

-6

North Bounding Coordinate

42

South Bounding Coordinate

39

Temporal Coverage

Range of Dates

Begin Date

2002-05-01

End Date

2003-10-31

Taxonomic Coverage

General Taxonomic Coverage

The work studies only one species, Canis lupus signatus (Cabrera, 1907).

Taxonomic Classification

Taxonomic Rank Name

Kingdom

Taxonomic Rank Value

Animalia

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

Canidae

Taxonomic Classification

Taxonomic Rank Name

Genus

Taxonomic Rank Value

Canis

Taxonomic Classification

Taxonomic Rank Name

Species

Taxonomic Rank Value

Canis lupus

Taxonomic Classification

Taxonomic Rank Name

Subspecies

Taxonomic Rank Value

Canis lupus signatus

License Information

Intellectual Rights

This work is licensed under a

Creative Commons Attribution (CC-BY) 4.0 License

.

 

Distribution

Online

URL
https://sig.icnf.pt/portal/home/item.html?id=f6e99cc04339442791883132c7db6197
 

Additional Metadata

Metadata

GBIF Metadata Block

Date Stamp

2021-11-29T09:03:15Z

Citation

Pimenta V, Barroso I, Álvares F, Correia J, Ferrão da Costa G, Moreira L, Nascimento J, Petrucci-Fonseca F, Roque S, Santos E, Tomás D (2021). National census of the Iberian wolf (2002-2003) - Presence type. ICNF - Instituto da Conservação da Natureza e das Florestas. Occurrence dataset https://doi.org/10.15468/ywmq6u accessed via GBIF.org on 2021-11-29.

Bibliography

Pimenta V., Barroso I., Álvares F., Correia J., Ferrão da Costa G., Moreira L., Nascimento J., Petrucci-Fonseca F., Roque S., Santos E. (2005). Situação Populacional di Lobo em Portugal: resultados do Censo Nacional 2002/2003.Relatório Técnico Instituto da Conservação da Natureza / Grupo Lobo. Lisboa, 158 pp+Anexos

Physical

Object Name

Metadados

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

html

Distribution

Online

URL
https://sig.icnf.pt/portal/sharing/rest/content/items/f6e99cc04339442791883132c7db6197/info/metadata/metadata.xml?format=defaultoutput=html

Physical

Object Name

Metadados

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

html

Distribution

Online

URL
https://geocatalogo.icnf.pt/metadados/utm_tipopresenca.html

Physical

Object Name

Shapefile do Censo Nacional Censo Nacional do Lobo Ibérico 2002/2003

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

shp

Distribution

Online

URL
http://si.icnf.pt/shp/utm_tipopresenca

Physical

Object Name

KML

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

kml

Distribution

Online

URL
http://si.icnf.pt/kml/utm_tipopresenca

Physical

Object Name

WMS

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

raster

Distribution

Online

URL
http://si.icnf.pt/wms/utm_tipopresenca

Physical

Object Name

WFS

Character Encoding

UTF-8

Data Format

Externally Defined Format

Format Name

shapefile

Distribution

Online

URL
http://si.icnf.pt/wfs/utm_tipopresenca
Logo URL
http://www2.icnf.pt/portal/logo.png
 

Project

• Project

Title

População de Lobo ibérico: resultados do Censo Nacional de 2002/2003

Personnel

Individual Name

Given Name

Teresa

Surname

Pimenta

Role

ADMINISTRATIVE_POINT_OF_CONTACT

Abstract

The subspecies present in the Iberian Peninsula, Canis lupus signatus (Cabrera, 1907), has in Portugal the "Endagered" status (Red Book of Vertebrates of Portugal), being covered by specific national legislation (Lei n.º 90/88, de 13 de agosto e Decreto-Lei n.º 54/2016, de 25 de agosto), which gives it the Status of Protected Species.

This work is an update of the Iberian wolf status in Portugal and resulted from a partnership work between ICNF and Grupo Lobo and had the following objectives:

Update the wolf distribution map in Portugal;

Estimate the number and distribution of existing family groups (packs);

Investigating the family group breeding status;

Analyze the population evolution regarding the previous works.

Funding

This work was co-fund by ICNF, I.P. and the European Union, through the Environment Operational Programme (application 1.1/00021– Documentos Estruturantes da Conservação da Natureza e da Biodiversidade). The preparation of this resource for publication through GBIF was supported by Project PORBIOTA—Portuguese E-Infrastructure for Information and Research on Biodiversity (POCI-01-0145-FEDER-022127), under the Operational Thematic Program for Competitiveness and Internationalization (POCI), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (FEDER) and FCT.

Study Area Description

Descriptor

The study area was defined based on Project LIFE (ICN, 1997). Is a 29000 Km² area containg parts of Braga, Viana do Castelo, Porto, Vila Real, Bragança, Aveiro, Viseu, Guarda, Castelo Branco e Portalegre municipalities. The area is manly mountainous or plateau, dominated by rural landscape, where agricultural areas alternate with forest and uncultivated patches and where cattle raising in extensive regimen is a predominant aspect.

 
 

Methods

• Method

Method Step

Description

For each UTM 10x10 the presence was Confirmed, Probable or Non Detected.

Method Step

Description

The following steps were performed in data layer:



- Convertion of the .shp from EPSG:3763 (ETRS89) to EPGS:4326 (WGS84)

- Extraction of the wkt geometry from the layer

- Centroids calculation the for each polygon

- Calculation of the coordinate accuracy through the longest distance from the centroid to the borders of the polygon.

- Calculation ​the centroids coordinate

- Cross-reference of the centroids with CAOP2020 layer

- export to csv and reinterpret attributes matching to DwC standard terms.



In the DwC archive:

occurrenceRemarks - information about wolf presence.

occurrenceStatus - information about wolf pack presence.

dynamicProperties - information about wolves found dead

georeferenceRemarks- The grid number (gid)

verbatimCoordinates - UTM coordinates

Sampling

Study Extent

The data was collected in a 29000 Km² area, containg parts of Braga, Viana do Castelo, Porto, Vila Real, Bragança, Aveiro, Viseu, Guarda, Castelo Branco e Portalegre municipalities, from May to October of 2002 and 2003, having been

punctually carried out, in both years, transects in search of evidence of the presence of the species outside this period

Sampling Description

The sampling unit used in this work was the UTM 10x10.

The presence of wolves was detected through four different ways:

Paths on foot or by car in search of signs of the species' presence (droppings, tracks, scratches);

Sound stations - Wolf howl simulation looking for return howl from the packs

Waiting stations - Detection by direct observation

Gathering information from local populations

qualityControl

Description

All initial data was inserted in a specific relational database built specifically for the project, which implemented several quality control methods. In the preparation of the dataset for GBIF publication, data consistency was verified using cluster algorithms using OpenRefine.