BASE Bielefeld Academic Search Engine

Indexes web resources and harvests metadata of scientific repositories. One of the world's most voluminous search engines especially for academic web resources (more than 100 million documents from more than 4,000 sources). You can access the full texts of about 60% of the indexed documents for free (Open Access).

Data and Resources
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Additional Info
Field Value
DatasetFormat Various
DatasetReuseLicence Display of access and terms of re-use for a document (Terms of Re-use/Licences in a from of Creative Common licences). It also allow for search based on the type of licence
DegreeOfDomainPertinence *****
EcoEvo Dataset Description Two different search surfaces are available: a basic search providing a single search field (search in all parts of a document by default) and an advanced search with multiple search fields and more sophisticated search options. Several options for sorting the result list. "Refine your search result" options (by author, subject, DDC, year of publication, content provider, language, document type, access and terms of re-use). Details at
FirstAppearance 2004-06-24
Language English, eng
Links true
MetadataFormat Dublin Core
MetadataReuseLicence NA
Organisation Bielefeld University Library
Search interface webpage
Subject Animal ecology, Microbial ecology, Aquatic ecology, Terrestrial ecology, Evolutionary ecology, Conservation biology, Behavioral ecology, Climate studies, Macroecology, Urban ecology, Social evolution, Disease ecology, Plant ecology, Food webs, Evolutionary adaptation, Population genetics, Ecosystem functions, Spatial and landscape ecology, Community ecology, Phylogenetics, Evolutionary genetics, Evolutionary ecology, Biodiversity
system:type AggregatorOfDataRepositories
Management Info
Field Value
Author Culina Antica
Maintainer Culina Antica
Version 1
Last Updated 10 December 2020, 11:37 (CET)
Created 24 April 2017, 15:40 (CEST)