Document of bibliographic reference 219875

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Predicting total global species richness using rates of species description and estimates of taxonomic effort

Abstract

We found that trends in the rate of description of 580,000 marine and terrestrial species, in the taxonomically authoritative World Register of Marine Species and Catalogue of Life databases, were similar until the 1950’s. Since then the relative number of marine to terrestrial species described per year has increased, reflecting the less explored nature of the oceans. From the mid-19^th century the cumulative number of species described has been linear, with the highest number of species described in the decade of 1900, and fewer species described and fewer authors active during the World Wars. There were more authors describing species since the 1960’s, indicating greater taxonomic effort. There were fewer species described per author since the 1920’s, suggesting it has become more difficult to discover new species. There was no evidence of any change in individual effort by taxonomists. Using a non-homogeneous renewal process model we predicted that 24-31% to 21-29% more marine and terrestrial species remain to be discovered respectively. We discuss why we consider that marine species comprise only 16% of all species on Earth although the oceans contain a greater phylogenetic diversity than occurs on land. We predict that there may be 1.8 to 2.0 million species on Earth, of which about 0.3 million are marine, significantly less than some previous estimates.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000307524200013

Bibliographic citation

Costello, M.J.; Wilson, S.P.; Houlding, B. (2011). Predicting total global species richness using rates of species description and estimates of taxonomic effort. Syst. Biol. 61(5): 871-883. http://dx.doi.org/10.1093/sysbio/syr080

Topic

Marine

Terrestrial

Is peer reviewed

true