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Table 4 Sources searched and search methods according to source type

From: Absence of evidence for the conservation outcomes of systematic conservation planning around the globe: a systematic map

Source type Source Weblink Search methoda
Publication database Web of Science ™ Core Collection https://webofknowledge.com Searched on title, abstract and keywords using the publication database search string adapted for each database All results extracted
SCOPUS https://www.scopus.com
CAB Abstracts https://www.cabi.org/publishing-products/online-information-resources/cab-abstracts/
Search engine Google Scholar https://scholar.google.co.uk Searched on title only using the Google Scholar search string A second search required ‘evaluation’ to also appear in the title For both searches, the first 1000 results were retrieved using the software Harzing’s Publish or Perish [91].
Online repositories Open grey http://www.opengrey.eu/ Searched on title only, using the Google Scholar search string
PAIS international (ProQuest) http://www.proquest.com/products-services/pais-set-c.html
Proceedings First (OCLC Online Computer Library Center, Inc.) http://www.oclc.org
Papers First (OCLC Online Computer Library Center, Inc.) http://www.oclc.org
Websites of specialist organisations and online databases Campbell collaboration http://www.campbellcollaboration.org/lib/ Where possible, organisational databases and websites were searched on all text using the Google Scholar search string with Boolean operators Where within-website searches could not be conducted on the whole Google Scholar search string using Boolean operators, individual terms were searched, and the resultant search lists combined, and duplicates removed
Center for International Forestry Research (CIFOR)—library http://www.cifor.org/library/
Environmental evidence http://www.environmentalevidence.org
Conservation evidence http://www.conservationevidence.com
Coral triangle initiative http://www.coraltriangleinitiative.org
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia https://publications.csiro.au/
Evidence on demand http://www.evidenceondemand.info/library.aspx
IUCN evaluations database https://www.iucn.org/monitoring-and-evaluation/monitoring-our-work/evaluations-database
IUCN Library System https://portals.iucn.org/library/dir/publications-list
Natureserve http://www.natureserve.org/biodiversity-science/publications
Poverty and Conservation Learning Group—Bibliographic database https://www.povertyandconservation.info/en/bibliographies
Poverty and Conservation Learning Group—Biodiversity-poverty evidence database https://www.povertyandconservation.info/biodiversity-poverty-evidence
Poverty and Conservation Learning Group—PCLG publications https://www.povertyandconservation.info/en/pclg-publications
Protected Planet http://www.protectedplanet.net
SANBI Planning database, South Africa http://www.sanbi.org/information/documents
The Digital Observatory for Protected Areas (Europe) http://dopa.jrc.ec.europa.eu/en/documentation
United Nations Environment Programme—World Conservation Monitoring Centre https://www.unep-wcmc.org/resources-and-data
Biodiversity Heritage Library http://www.biodiversitylibrary.org/
USAID Development Experience Clearinghouse (Evaluations) https://dec.usaid.gov/dec/content/evaluations.aspx
USAID Biodiversity Conservation Gateway https://rmportal.net/biodiversityconservation-gateway  
World Wildlife Fund for Nature International https://wwf.panda.org  
Opportunistic Four academic conferences Subject experts   General calls were made during presentations and on Twitter Requests were made via email
  1. aDetailed records of the dates and criteria used for each search are included in Additional file 1