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On the multiscale dynamics of punctuated evolution.
Trends Ecol Evol
August 2024
Evolution of Networks Lab, Institut de Biologia Evolutiva, Passeig Marítim de la Barceloneta 37 49, Barcelona 08003, Spain; European Centre for Living Technology, Ca' Bottacin, Dorsoduro 3911, 30123 Venice, Italy. Electronic address:
For five decades, paleontologists, paleobiologists, and ecologists have investigated patterns of punctuated equilibria in biology. Here, we step outside those fields and summarize recent advances in the theory of and evidence for punctuated equilibria, gathered from contemporary observations in geology, molecular biology, genetics, anthropology, and sociotechnology. Taken in the aggregate, these observations lead to a more general theory that we refer to as punctuated evolution.
View Article and Find Full Text PDFCharles Darwin's theory of evolution was founded on the core belief that natural history is one of slow, incremental change, a concept he called "speciation." A hundred years later Eldredge and Gould challenged Darwin's theory, arguing that the data of paleontology reveals something quite different: long periods of stasis followed by bursts of change, a concept they called "punctuated equilibria." This article will follow that progression and then describe the three punctuated equilibria that I believe led to .
View Article and Find Full Text PDFIntroducing the Intergovernmental Policy Output Dataset (IPOD).
Rev Int Organ
June 2023
Stockholm University, Stockholm, Sweden.
Unlabelled: There is a growing recognition that international organizations (IOs) formulate and adopt policy in a wide range of areas. IOs have emerged as key venues for states seeking joint solutions to contemporary challenges such as climate change or COVID-19, and to establish frameworks to bolster trade, development, security, and more. In this capacity, IOs produce both extraordinary and routine policy output with a multitude of purposes, ranging from policies of historic significance like admitting new members to the more mundane tasks of administering IO staff.
View Article and Find Full Text PDFA mechanism for punctuating equilibria during mammalian vocal development.
PLoS Comput Biol
June 2022
Department of Psychology, Princeton University, Princeton, New Jersey, United States of America.
Evolution and development are typically characterized as the outcomes of gradual changes, but sometimes (states of equilibrium can be punctuated by sudden change. Here, we studied the early vocal development of three different mammals: common marmoset monkeys, Egyptian fruit bats, and humans. Consistent with the notion of punctuated equilibria, we found that all three species undergo at least one sudden transition in the acoustics of their developing vocalizations.
View Article and Find Full Text PDFWe live in a changing world, but that shouldn't mean we abandon the concept of equilibrium.
Ecol Lett
January 2021
Department of Zoology, University of Oxford, Mansfield Road, Oxford, OX1 3SZ, UK.
Ecological systems are no longer at equilibrium, but over much of the history of the Earth, the natural world has been in stationary states, that are punctuated by periods of transience. Just because we have knocked our planet away from a stable state, doesn't mean we have to abandon the concept of equilibrium when we strive to understand the dynamics of the natural world.
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