The Ongoing Extinction Event: A Deep Time,
Eco-evolutionary Perspective For Mitigation And
Reconciliation Management
Author(s)
P. R. Pinet, E. K. Pikitch & J. C. Stager
Abstract
The current accelerated extinction tempo and the attendant decline in speciation
rates are expected to segue into a mass-extinction event in the next few centuries.
It cannot be stopped and will have profound implications for humans not yet
born. What can be done? To begin, it is clear that the customary short-term
conservation strategies with their scale mismatches fail to work in the long term,
because they ignore the slow variables associated with deep time that ultimately
drive the eco-evolutionary dynamics of ecosystems. Also, it is clear that large
population ranges not only reduce extinction rates, but also enhance speciation
rates. Hence, mitigation strategies for protecting as much evolutionary potential
as possible during the forthcoming century and subsequent millennia (102–104
years) necessitate a focus on nonlinear, self-organizing, eco-evolutionary
complexity that emerges from the slow processes embedded across expansive
spatial and temporal scales. Management schemes for the effective protection of
eco-evolutionary couplings include restoring apex predators, maintaining ecoevolutionary
abundances of important species, linking bottom-up and top-down
control of food webs, establishing and protecting corridors between ecosystems,
strengthening the negative feedbacks that sustain eco-evolutionary interplay, and
protecting and restoring biodiversity and biodisparity. Moreover, given that the
vast majority of ecosystems worldwide are human dominated, it is imperative
that the geographical range of diverse biota be expanded into these
anthropogenic habitats, a sharing of living space promoted by reconciliation
ecology. To illustrate the theoretical efficacy of the above, we briefly apply
Keywords
mass extinction, deep time, mitigation strategies, eco-evolutionary dynamics, reconciliation ecology
Related Book
Other papers in this volume
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