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Developmental push or environmental pull? The causes of macroevolutionary dynamics

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dc.contributor.author Erwin, Douglas H. en
dc.date.accessioned 2017-11-10T10:01:33Z
dc.date.available 2017-11-10T10:01:33Z
dc.date.issued 2017
dc.identifier.citation Erwin, Douglas H. 2017. "<a href="https://repository.si.edu/handle/10088/33912">Developmental push or environmental pull? The causes of macroevolutionary dynamics</a>." <em>History and philosophy of the life sciences</em>. 39 (4):36&ndash;36. <a href="https://doi.org/10.1007/s40656-017-0163-0">https://doi.org/10.1007/s40656-017-0163-0</a> en
dc.identifier.issn 0391-9714
dc.identifier.uri https://hdl.handle.net/10088/33912
dc.description.abstract Have the large-scale evolutionary patterns illustrated by the fossil record been driven by fluctuations in environmental opportunity, by biotic factors, or by changes in the types of phenotypic variants available for evolutionary change? Since the Modern Synthesis most evolutionary biologists have maintained that microevolutionary processes carrying on over sufficient time will generate macroevolutionary patterns, with no need for other pattern-generating mechanisms such as punctuated equilibrium or species selection. This view was challenged by paleontologists in the 1970s with proposals that the differential sorting and selection of species and clades, and the effects of biotic crises such as mass extinctions, were important extensions to traditional evolutionary theory. More recently those interested in macroevolution have debated the relative importance of abiotic and biotic factors in driving macroevolutionary patterns and have introduced comparative phylogenetic methods to analyze the rates of change in taxonomic diversity. Applying Peter Godfrey-Smith&#39;s distinction between distributional explanations and explanations focusing on the origin of variation, most macroevolutionary studies have provided distributional explanations of macroevolutionary patterns. Comparative studies of developmental evolution, however, have implicated the origin of variants as a driving macroevolution force. In particular, the repatterning of gene regulatory networks provides new insights into the origins of developmental novelties. This raises the question of whether macroevolution has been pulled by the generation of environmental opportunity, or pushed by the introduction of new morphologies. The contrast between distributional and origination scenarios has implications for understanding evolutionary novelty and innovation and how macroevolutionary process may have evolved over time. en
dc.relation.ispartof History and philosophy of the life sciences en
dc.title Developmental push or environmental pull? The causes of macroevolutionary dynamics en
dc.type Journal Article en
dc.identifier.srbnumber 144425
dc.identifier.doi 10.1007/s40656-017-0163-0
rft.jtitle History and philosophy of the life sciences
rft.volume 39
rft.issue 4
rft.spage 36
rft.epage 36
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Paleobiology en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 36
dc.citation.epage 36

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