Skeletal marine animal biodiversity is built by families with long macroevolutionary lag times

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http://hdl.handle.net/10138/326731

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Kroger , B & Penny , A 2020 , ' Skeletal marine animal biodiversity is built by families with long macroevolutionary lag times ' , Nature Ecology & Evolution , vol. 4 , no. 10 , pp. 1410-+ . https://doi.org/10.1038/s41559-020-1265-8

Title: Skeletal marine animal biodiversity is built by families with long macroevolutionary lag times
Author: Kroger, Bjorn; Penny, Amelia
Contributor organization: Staff Services
Natural Sciences Unit
Finnish Museum of Natural History
Date: 2020-10
Language: eng
Number of pages: 14
Belongs to series: Nature Ecology & Evolution
ISSN: 2397-334X
DOI: https://doi.org/10.1038/s41559-020-1265-8
URI: http://hdl.handle.net/10138/326731
Abstract: Diversification trajectories of skeletal non-colonial marine families show increased capacity of marine ecosystems to accommodate highly diverse communities over the Phanerozoic. The clade dynamics of marine animals have changed markedly over the Phanerozoic. Long-term diversification is associated with decreasing origination and extinction rates, and with increasing taxon longevity. Here we use the diversification trajectories of skeletal non-colonial marine families to infer the mechanisms that generated these trends. Suggested mechanisms behind these trends include stochastic extinction of taxa with high evolutionary volatility and selection for traits that buffer against extinction. We find an increasing predominance of Phanerozoic families with long lag times between first appearance and peak diversity, over those with 'early burst' diversification trajectories. Long-lag families persisted for longer and had lower evolutionary volatilities, higher genus-level occupancies and genera with larger niche breadths than early burst families. However, they do not preferentially show ecological modes known to protect against extinction. We interpret the rise of the long-lag families as reflecting an intensification of ecosystem-level mechanisms supporting both long-term coexistence and transient dynamics, which increased the capacity of marine ecosystems to accommodate highly diverse communities.
Subject: CAPTURE-MARK-RECAPTURE
ECOLOGICAL OPPORTUNITY
TAXONOMIC DIVERSITY
EXTINCTION
DYNAMICS
NICHE
DIVERSIFICATION
ORIGINATION
VOLATILITY
SPECIATION
1172 Environmental sciences
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Usage restriction: openAccess
Self-archived version: acceptedVersion


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