منابع مشابه
Academic paediatrics: Easter Island or Easter Sunday?
W hen the last tree on Easter Island was felled, the inhabitants belatedly realised that there was no escape from an eon of ‘‘groundhog days’’. Paediatrics, a discipline championed in the UK, faces a comparably monotonous future bereft of innovation and improvement. Levene and Olver present alarming data on staffing changes in UK academic paediatrics between 1999 and 2004. Most worrying is a 26...
متن کاملChaos in easter island ecology.
This paper demonstrates that a recently proposed dynamical model for the ecology of Easter Island admits periodic and chaotic attractors, not previously reported. Such behavior may more realistically depict the population dynamics of general ecosystems and illustrates the power of simple models to produce the kind of complex behavior that is ubiquitous in such systems.
متن کاملLate colonization of Easter Island.
Easter Island (Rapa Nui) provides a model of human-induced environmental degradation. A reliable chronology is central to understanding the cultural, ecological, and demographic processes involved. Radiocarbon dates for the earliest stratigraphic layers at Anakena, Easter Island, and analysis of previous radiocarbon dates imply that the island was colonized late, about 1200 A.D. Substantial eco...
متن کاملSpatiotemporal chaos in Easter Island ecology.
This paper demonstrates that a recently proposed spatiotemporal model for the ecology of Easter Island admits periodic and chaotic attractors, not previously reported. Such behavior may more realistically depict the population dynamics of general ecosystems and illustrates the power of simple models to produce the kind of complex behavior that is ubiquitous in such systems.
متن کاملMathematical Model of Easter Island Society Collapse
In this paper we consider a mathematical model for the evolution and collapse of the Easter Island society, starting from the fifth century until the last period of the society collapse (fifteen century). Based on historical reports, the available primary sources consisted almost exclusively on the trees. We describe the inhabitants and the resources as an isolated system and both considered as...
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ژورنال
عنوان ژورنال: Man
سال: 1904
ISSN: 0025-1496
DOI: 10.2307/2839700