Title
Undetected species losses, food webs, and ecological baselines: A cautionary tale from the Greater Yellowstone Ecosystem, USA
Author(s)
Berger, J.
Published
2008
Publisher
ORYX
Abstract
Large protected areas are often considered natural yet outside pressures may compromise ecological integrity. This paper points to a problem in assessing ecological baselines: what if species' extirpations go undetected? I present a data set spanning 130 years that demonstrates the loss of white-tailed jack rabbits Lepus townsendii from two National Parks in the well studied 60,000 km2 Greater Yellowstone Ecosystem, USA. While these extirpations have been unnoticed until now, an ecological consequence may be elevated predation on juvenile ungulates. A critical challenge we face is how to apply better the concept of shifting baselines to the restoration of functional relationships when species' losses are undetected. © 2008 Fauna and Flora International.
Keywords
baseline conditions; data set; ecological approach; food web; juvenile; lagomorph; national park; predation; restoration ecology; ungulate; Greater Yellowstone Ecosystem; North America; United States; Lepus townsendii; Oryctolagus cuniculus; Ungulata

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PUB10583