Extinctions in Near Time
Ross D.E. MacPhee, Hans-Dieter Sues
Springer Science & Business Media, Jun 30, 1999 - Science - 394 pages
"Near time" -an interval that spans the last 100,000 years or so of earth history-qualifies as a remarkable period for many reasons. From an anthropocentric point of view, the out standing feature of near time is the fact that the evolution, cultural diversification, and glob al spread of Homo sapiens have all occurred within it. From a wider biological perspective, however, the hallmark of near time is better conceived of as being one of enduring, repeat ed loss. The point is important. Despite the sense of uniqueness implicit in phrases like "the biodiversity crisis," meant to convey the notion that the present bout of extinctions is by far the worst endured in recent times, substantial losses have occurred throughout near time. In the majority of cases, these losses occurred when, and only when, people began to ex pand across areas that had never before experienced their presence. Although the explana tion for these correlations in time and space may seem obvious, it is one thing to rhetori cally observe that there is a connection between humans and recent extinctions, and quite another to demonstrate it scientifically. How should this be done? Traditionally, the study of past extinctions has fallen largely to researchers steeped in such disciplines as paleontology, systematics, and paleoecology. The evaluation of future losses, by contrast, has lain almost exclusively within the domain of conservation biolo gists. Now, more than ever, there is opportunity for overlap and sharing of information.
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Extinctions in Near Time: Causes, Contexts, and Consequences
Ross D.E. MacPhee,Hans-Dieter Sues
No preview available - 2010
America animals appear areas arrival associated Australia become birds body mass bones cause century climate climatic change Clovis collected continents dates disappeared disharmony distribution early ecological effects endemic event evidence example extinction factors fauna FIGURE fishes foragers forest fossil groups habitat Haplochromis Holocene human hunting important increase indicate interval introduction islands known Lake Victoria land late Pleistocene least less limited lists losses MacPhee Madagascar major mammalian mammals mammoth Martin Mediterranean megafauna natural North North America northern noted occurred Pacific patches pattern period petrels population possible predators Prehistoric present Press prey probably Quaternary range rates recent record References region relatively remains representative sampling Seehausen South southern species suggest Table taxa tion University York yrbp Zealand