Change search
ReferencesLink to record
Permanent link

Direct link
On age and species richness of higher taxa
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2014 (English)In: American Naturalist, ISSN 0003-0147, E-ISSN 1537-5323, Vol. 184, no 4, 447-455 p.Article in journal (Refereed) Published
Abstract [en]

Many studies have tried to identify factors that explain differences in numbers of species between clades against the background assumption that older clades contain more species because they have had more time for diversity to accumulate. The finding in several recent studies that species richness of clades is decoupled from stem age has been interpreted as evidence for ecological limits to species richness. Here we demonstrate that the absence of a positive age-diversity relationship, or even a negative relationship, may also occur when taxa are defined based on time or some correlate of time such as genetic distance or perhaps morphological distinctness. Thus, inferring underlying processes from distributions of species across higher taxa requires caution concerning the way in which higher taxa are defined. When this definition is unclear, crown age is superior to stem age as a measure of clade age.

Place, publisher, year, edition, pages
University of Chicago Press, 2014. Vol. 184, no 4, 447-455 p.
Keyword [en]
birth-death process, diversification, macroevolution, phylogenetics, speciation
National Category
Ecology Evolutionary Biology
URN: urn:nbn:se:umu:diva-95261DOI: 10.1086/677676ISI: 000342281100005PubMedID: 25226180OAI: diva2:760687
Available from: 2014-11-04 Created: 2014-10-27 Last updated: 2014-11-04Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Bokma, Folmer
By organisation
Department of Ecology and Environmental Sciences
In the same journal
American Naturalist
EcologyEvolutionary Biology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 79 hits
ReferencesLink to record
Permanent link

Direct link