Occurence data

Where to find occurrence data?

Ideally, the user should have a file, in txt, csv or other suitable formats for R, providing the coordinates of spatial occurrences of the species under study. If the aim of the study is to build the potential distribution of a species over a large area (continental or global scale), it is a common practice to gather spatial data from online databases that have being collecting and freely providing species records in recent years. The Global Biodiversity Information Facility (GBIF; http://www.gbif.org ) provides a huge amount of occurrences data and it is a good source to gather information on spatial distribution of species. There are also many other database, focusing on specific groups, such as HerpNET2 (http://herpnet2.org ), MaNIS (http://manisnet.org), FishNET2 (http://fishnet2.net) and many others.