The dataset contains records of diurnal raptors block D of the Secondary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa) and in a control zone, performed within the General Bird Monitoring Plan of the area, promoted by EDIA, S.A. Data were collected in the winter/spring of 2021-2022. The diurnal raptors and alike species (eg., Corvidae) were searched for in 32 transects (26 in the study area and five in a control area). A total of 342 contacts was obtained, for 16 species of birds.
","language":"eng","citation":{"text":"Almeida J, Pereira C, Rethoré G, Mirinha M, Correia S, Guégués N, Carvalho T, Caldeira T, Martins N, Múrias T (2026). EDIA – Global Bird Monitoring Program of the Alqueva Dam (EFMA) Secondary Irrigation Network, block D (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa): Diurnal Raptors – linear transects [2021-2022]. EDIA – Empresa de Desenvolvimento e Infra-estruturas do Alqueva, S.A.. Sampling event dataset https://doi.org/10.15468/wcj8gd accessed via GBIF.org on 2026-10-12.","citationProvidedBySource":false},"contactsCitation":[{"key":7011101,"abbreviatedName":"Almeida J","firstName":"João","lastName":"Almeida","roles":["ORIGINATOR"],"userId":[]},{"key":7011102,"abbreviatedName":"Pereira C","firstName":"Carlos","lastName":"Pereira","roles":["ORIGINATOR"],"userId":[]},{"key":7011103,"abbreviatedName":"Rethoré G","firstName":"Guillaume","lastName":"Rethoré","roles":["ORIGINATOR"],"userId":[]},{"key":7011104,"abbreviatedName":"Mirinha M","firstName":"Marco","lastName":"Mirinha","roles":["ORIGINATOR"],"userId":[]},{"key":7011105,"abbreviatedName":"Correia S","firstName":"Sérgio","lastName":"Correia","roles":["ORIGINATOR"],"userId":[]},{"key":7011106,"abbreviatedName":"Guégués N","firstName":"Nuno","lastName":"Guégués","roles":["ORIGINATOR"],"userId":[]},{"key":7011107,"abbreviatedName":"Carvalho T","firstName":"Tiago","lastName":"Carvalho","roles":["ORIGINATOR"],"userId":[]},{"key":7011108,"abbreviatedName":"Caldeira T","firstName":"Tiago","lastName":"Caldeira","roles":["ORIGINATOR"],"userId":[]},{"key":7011109,"abbreviatedName":"Martins N","firstName":"Nuno","lastName":"Martins","roles":["ORIGINATOR"],"userId":[]},{"key":7011110,"abbreviatedName":"Múrias T","firstName":"Tiago","lastName":"Múrias","roles":["METADATA_AUTHOR"],"userId":[]}],"lockedForAutoUpdate":false,"createdBy":"61b5d63a-27f7-4834-8ea6-74012b20ec42","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:18:09.800+00:00","modified":"2026-05-13T15:19:10.864+00:00","contacts":[{"key":7011101,"type":"ORIGINATOR","primary":true,"userId":[],"firstName":"João","lastName":"Almeida","position":["Project Manager"],"email":["geral@aqualogus.pt"],"phone":[],"homepage":[],"organization":"AQUALOGUS - 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Engenharia e Ambiente, Lda.","address":[],"city":"Lisboa","country":"PT","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.826+00:00","modified":"2026-05-13T15:19:10.826+00:00"},{"key":7011108,"type":"ORIGINATOR","primary":false,"userId":[],"firstName":"Tiago","lastName":"Caldeira","position":["Technician"],"email":[],"phone":[],"homepage":[],"organization":"AQUALOGUS - Engenharia e Ambiente, Lda.","address":[],"city":"Lisboa","country":"PT","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.827+00:00","modified":"2026-05-13T15:19:10.827+00:00"},{"key":7011109,"type":"ORIGINATOR","primary":false,"userId":[],"firstName":"Nuno","lastName":"Martins","position":[],"email":[],"phone":[],"homepage":[],"organization":"AQUALOGUS - Engenharia e Ambiente, Lda.","address":[],"city":"Lisboa","country":"PT","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.827+00:00","modified":"2026-05-13T15:19:10.827+00:00"},{"key":7011110,"type":"METADATA_AUTHOR","primary":true,"userId":[],"firstName":"Tiago","lastName":"Múrias","position":["Researcher"],"email":["tdsantos@cibio.up.pt"],"phone":[],"homepage":[],"organization":"CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Universidade do Porto","address":["Campus Agrário de Vairão"],"city":"Vairão","country":"PT","postalCode":"4485-661 Vairão","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.828+00:00","modified":"2026-05-13T15:19:10.828+00:00"},{"key":7011111,"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":true,"userId":[],"firstName":"Mariana","lastName":"Antunes","position":["Techical point of contact"],"email":["mantunes@edia.pt"],"phone":["+351 284 315 247"],"homepage":[],"organization":"EDIA – Empresa de Desenvolvimento e Infra-estruturas do Alqueva, S.A.","address":["Rua Zeca Afonso nº 2"],"city":"Beja","country":"PT","postalCode":"Beja 7800-522","createdBy":"crawler.gbif.org","modifiedBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.830+00:00","modified":"2026-05-13T15:19:10.830+00:00"}],"endpoints":[{"key":1288515,"type":"DWC_ARCHIVE","url":"https://ipt.gbif.pt/ipt/archive.do?r=edia_blockd_diurnal_raptors_2021-22","createdBy":"61b5d63a-27f7-4834-8ea6-74012b20ec42","modifiedBy":"61b5d63a-27f7-4834-8ea6-74012b20ec42","created":"2026-05-13T15:18:10.007+00:00","modified":"2026-05-13T15:18:10.007+00:00","machineTags":[]},{"key":1288514,"type":"EML","url":"https://ipt.gbif.pt/ipt/eml.do?r=edia_blockd_diurnal_raptors_2021-22","createdBy":"61b5d63a-27f7-4834-8ea6-74012b20ec42","modifiedBy":"61b5d63a-27f7-4834-8ea6-74012b20ec42","created":"2026-05-13T15:18:09.981+00:00","modified":"2026-05-13T15:18:09.981+00:00","machineTags":[]}],"machineTags":[{"key":33141949,"namespace":"crawler.gbif.org","name":"crawl_attempt","value":"18","createdBy":"crawler.gbif.org","created":"2026-10-12T01:51:10.904+00:00"}],"tags":[],"identifiers":[{"key":468051,"type":"URL","identifier":"https://ipt.gbif.pt/ipt/resource?r=edia_blockd_diurnal_raptors_2021-22","createdBy":"crawler.gbif.org","created":"2026-05-13T15:19:10.837+00:00","primary":false}],"comments":[],"bibliographicCitations":[{"text":"Equipa Atlas, 2008. Atlas das aves nidificantes em Portugal (1999-2005). Assírio e Alvim/ICNB, Lisboa.","identifier":"ISBN: 978-972-37-1374-9","citationProvidedBySource":false},{"text":"Robbins, C. S. 1981. Effect of the time of the day on bird activity. Studies in Avian Biology 6: 275-296.","identifier":"https://digitalcommons.usf.edu/sab/vol6/iss1/60","citationProvidedBySource":false}],"curatorialUnits":[],"taxonomicCoverages":[{"description":"The taxonomic coverage of this dataset spans 1 phylum, 1 class, 3 orders, 3 families, 11 genera and 16 species.","coverages":[{"scientificName":"Chordata","rank":{"verbatim":"phylum","interpreted":"PHYLUM"}},{"scientificName":"Aves","rank":{"verbatim":"class","interpreted":"CLASS"}},{"scientificName":"Corvidae","rank":{"verbatim":"family","interpreted":"FAMILY"}},{"scientificName":"Falconiformes","rank":{"verbatim":"order","interpreted":"ORDER"}},{"scientificName":"Accipitridae","rank":{"verbatim":"family","interpreted":"FAMILY"}},{"scientificName":"Falconidae","rank":{"verbatim":"family","interpreted":"FAMILY"}},{"scientificName":"Passeriformes","rank":{"verbatim":"order","interpreted":"ORDER"}},{"scientificName":"Accipitriformes","rank":{"verbatim":"order","interpreted":"ORDER"}},{"scientificName":"Animalia","rank":{"verbatim":"kingdom","interpreted":"KINGDOM"}}]}],"geographicCoverages":[{"description":"The data were collected in the area covered by the Secondary Irrigation Network of the Alqueva Dam project, block D of the Secondary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa), in the municipalities of Serpa and Moura, and in a control zone in the municipalities of Beja, Mértola and Castro Verde (all in the district of Beja).","boundingBox":{"minLatitude":37.75889,"maxLatitude":38.15157,"minLongitude":-8.09333,"maxLongitude":-7.37756,"globalCoverage":false}}],"temporalCoverages":[{"@type":"range","start":"2021-05-05T00:00:00.000+00:00","end":"2022-02-12T00:00:00.000+00:00"}],"keywordCollections":[{"thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml","keywords":["diurnal raptors; Aqueva dam; irrigation blocks; block D; monitoring plan; impact; 2021-2022"]}],"project":{"title":"EDIA – Global Bird Monitoring Program of the Alqueva Dam (EFMA) Secondary Irrigation Network, block D (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa): Diurnal Raptors – linear transects [2021-2022]","identifier":"EDIA Biodiversity Data ","contacts":[{"type":"AUTHOR","primary":false,"userId":[],"firstName":"João","lastName":"Almeida","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"ADMINISTRATIVE_POINT_OF_CONTACT","primary":false,"userId":[],"firstName":"Carlos","lastName":"Pereira","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Guillaume","lastName":"Rethoré","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Marco","lastName":"Mirinha","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Nuno","lastName":"Guégués","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Sérgio","lastName":"Correia","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Tiago","lastName":"Carvalho","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Tiago","lastName":"Caldeira","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"AUTHOR","primary":false,"userId":[],"firstName":"Nuno","lastName":"Martins","position":[],"email":[],"phone":[],"homepage":[],"address":[]},{"type":"METADATA_AUTHOR","primary":false,"userId":[],"firstName":"Tiago","lastName":"Múrias","position":[],"email":[],"phone":[],"homepage":[],"address":[]}],"funding":"The work was funded by EDIA, S.A.","awards":[],"studyAreaDescription":"The data were collected in a subset of the block D of the Secondary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa), in the municipalities of Serpa and Moura, and in a control zone in the municipalities of Beja, Mértolsa and Castro Verde (all in the district of Beja).","designDescription":"The objective of the study was to determine the general patterns of occurrence of the target species, their abundance and breeding status in the study area, based on selected ad-hoc road transects. The method use was deemed suitable to assess the sampling of all diurnal raptors species occurrying in the area of the study block and of an associated control area.","relatedProjects":[],"abstract":"The dataset contains records of diurnal raptors in the area of the Secondary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa) and in a control zone, performed within the General Bird Monitoring Plan of the area, promoted by EDIA, S.A. Data were collected in the winter/spring of 2021-22. The diurnal raptors and alike species (eg., Corvidae) were searched for in 31 transects (26 in the study area and five in a control area). The occurrence of the target taxa was documented through 342 records of individuals. The most abundant species (>40 records) were Gyps fulvus (71 records), Buteo buteo (67) and Milvus milvus (42)"},"samplingDescription":{"studyExtent":"The data were collected in a sub-block (Caliços-Machado) of the block D of the Secundary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa), in the municipalities of Serpa and Moura, and in a control zone in the municipalities of Beja, Mértolsa and Castro Verde (all in the district of Beja).","sampling":"The transects were carried out by a team of two observers in a vehicle at a low speed (10 to 20 km/h) and relatively constant, along roads, paths and paved secondary roads, covering the entire length of each of the transects. The geographic coordinates of the real observation points is given in columns “decimalLatitude”/decimalLongitude”, and the initial and final points of the transect, in the column “footprintWKT”. The control points are marked “Controloxxx” in the “locationID” column.\n\nDuring each visit to a given transect, all contacts and observations with the target species were recorded on a field form, which included (a) species, (b) number of individuals, (c) perpendiculat distance to the road and identification of the side of the road on which the contact was recorded (right or left, in the direction of travel of the vehicle); for flocks, the distance is estimated to the approximate geometric center of the group, (c) sex (whenever sexual dimorphism is compatible with remote observation), (d) age, (e) the probability of breeding [only in the breeding seasons], according to a numeric code, aggregated into three possibilities: “no confirmed breeding” (0), “possible breeding” (1-3), probable breeding (4-10) and confirmed breeding (11-16) (Equipa Atlas, 2008) and (f) behavior and (f) habitat. \n\nRegarding the habitat of occurrence, a pre-established list of habitat classes was used, which based on the COS 2007 (Land Use and Occupation Chart for Mainland Portugal for 2007), produced by the Portuguese Geographical Institute.","qualityControl":"All identifications were performed by qualified technicians","methodSteps":["To be completed"]},"countryCoverage":[],"collections":[],"dataDescriptions":[],"dataLanguage":"eng","purpose":"This dataset is part of a broader initiative whereby the company EDIA, S.A. will make available all biodiversity data collected during impact assessment and biological monitoring studies.
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