History's legacy: Why future progress in ecology demands a view of the past
Abstract History has profoundly affected the composition, distribution, and abundances of species in contemporary ecosystems. A full understanding of how ecosystems work and change must therefore take history into account. We offer four well‐studied examples illustrating how a knowledge of history h...
Published in: | Ecology |
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Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2022
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Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ecy.3788 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3788 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ecy.3788 https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecy.3788 |
Summary: | Abstract History has profoundly affected the composition, distribution, and abundances of species in contemporary ecosystems. A full understanding of how ecosystems work and change must therefore take history into account. We offer four well‐studied examples illustrating how a knowledge of history has strengthened interpretations of modern systems: the development of molluscan antipredatory defenses in relation to shell‐breaking predators; the North Pacific kelp ecosystem with sea otters, smaller predators, sea urchins, and large herbivores; estuarine ecosystems affected by the decline in oysters and other suspension feeders; and the legacy of extinct large herbivores and frugivores in tropical American forests. Many current ecological problems would greatly benefit from a historical perspective. We highlight four of these: soil depletion and tree stunting in forests related to the disappearance of large consumers; the spread of anoxic dead zones in the ocean, which we argue could be mitigated by restoring predator and suspension‐feeding guilds; ocean acidification, which would be alleviated by more nutrient recycling by consumers in the aerobic ecosystem; and the relation between species diversity and keystone predators, a foundational concept that is complicated by simplified trophic relationships in modern ecosystems. |
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