Diversity-dependent evolutionary rates in early Palaeozoic zooplankton

Proceedings. Biological Sciences
Michael FootePeter M Sadler

Abstract

The extent to which biological diversity affects rates of diversification is central to understanding macroevolutionary dynamics, yet no consensus has emerged on the importance of diversity-dependence of evolutionary rates. Here, we analyse the species-level fossil record of early Palaeozoic graptoloids, documented with high temporal resolution, to test directly whether rates of diversification were influenced by levels of standing diversity within this major clade of marine zooplankton. To circumvent the statistical regression-to-the-mean artefact, whereby higher- and lower-than-average values of diversity tend to be followed by negative and positive diversification rates, we construct a non-parametric, empirically scaled, diversity-independent null model by randomizing the observed diversification rates with respect to time. Comparing observed correlations between diversity and diversification rate to those expected from this diversity-independent model, we find evidence for negative diversity-dependence, accounting for up to 12% of the variance in diversification rate, with maximal correlation at a temporal lag of approximately 1 Myr. Diversity-dependence persists throughout the Ordovician and Silurian, despite a major incre...Continue Reading

Associated Datasets

References

Feb 14, 2006·The American Naturalist·Colleen Kelly, Trevor D Price
Oct 3, 2006·The Journal of Animal Ecology·Robert P FreckletonWilliam J Sutherland
Aug 23, 2007·Proceedings. Biological Sciences·Lee Hsiang Liow, Nils Chr Stenseth
Nov 17, 2007·Science·Michael FooteIain Matcham
Aug 13, 2008·Proceedings of the National Academy of Sciences of the United States of America·John Alroy
Aug 8, 2009·Evolution; International Journal of Organic Evolution·Tiago B Quental, Charles R Marshall
Nov 26, 2011·Science·Bjarte Hannisdal, Shanan E Peters
Sep 11, 2012·Biological Reviews of the Cambridge Philosophical Society·Howard V Cornell
Jun 22, 2013·Science·Tiago B Quental, Charles R Marshall
Apr 24, 2015·The American Naturalist·Daniel L Rabosky, Allen H Hurlbert
Apr 24, 2015·The American Naturalist·Luke J Harmon, Susan Harrison
Jan 27, 2016·Proceedings of the National Academy of Sciences of the United States of America·James S CramptonMichael Foote
Mar 16, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Charles R Marshall, Tiago B Quental
Jul 20, 2016·Proceedings of the National Academy of Sciences of the United States of America·H David SheetsAndrew D Hawkins
Dec 1, 2017·Nature·Indrė ŽliobaitėNils C Stenseth

❮ Previous
Next ❯

Citations

Jan 18, 2020·Science·Peter Wagner
Sep 12, 2018·Integrative and Comparative Biology·Stewart M EdieDavid Jablonski
Oct 18, 2020·Trends in Ecology & Evolution·Danielle FraserS Kathleen Lyons
Oct 13, 2021·Current Biology : CB·Roger B J BensonDaniel L Rabosky

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

© 2022 Meta ULC. All rights reserved