A note on the e–a histogram

Kirschenmann, Thomas; Damien, Paul; Walker, Stephen G.

doi:10.1016/j.spl.2015.04.021

Cited by 2 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Per-lineage speciation (λ) and per-lineage extinction (μ) rates were constructed from the generations of the BDS analyses using equal-area binning ( 62 ) with three events per bin. Expected species longevity was calculated as the reciprocal of the per-lineage extinction rate ( 19 ).…”

Section: Methodsmentioning

confidence: 99%

Deep drilling reveals massive shifts in evolutionary dynamics after formation of ancient ecosystem

et al. 2020

View full text Add to dashboard Cite

The scarcity of high-resolution empirical data directly tracking diversity over time limits our understanding of speciation and extinction dynamics and the drivers of rate changes. Here, we analyze a continuous species-level fossil record of endemic diatoms from ancient Lake Ohrid, along with environmental and climate indicator time series since lake formation 1.36 million years (Ma) ago. We show that speciation and extinction rates nearly simultaneously decreased in the environmentally dynamic phase after ecosystem formation and stabilized after deep-water conditions established in Lake Ohrid. As the lake deepens, we also see a switch in the macroevolutionary trade-off, resulting in a transition from a volatile assemblage of short-lived endemic species to a stable community of long-lived species. Our results emphasize the importance of the interplay between environmental/climate change, ecosystem stability, and environmental limits to diversity for diversification processes. The study also provides a new understanding of evolutionary dynamics in long-lived ecosystems.

show abstract

Section: Methodsmentioning

confidence: 99%