G
George C. Stevens
Researcher at University of New Mexico
Publications - 14
Citations - 3979
George C. Stevens is an academic researcher from University of New Mexico. The author has contributed to research in topics: Range (biology) & Rapoport's rule. The author has an hindex of 9, co-authored 14 publications receiving 3707 citations. Previous affiliations of George C. Stevens include Gustavus Adolphus College & University of Alaska Fairbanks.
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The Latitudinal Gradient in Geographical Range: How so Many Species Coexist in the Tropics
TL;DR: It is suggested that the greater annual range of climatic conditions to which individuals in high-latitudes environments are exposed relative to what low-latitude organisms face has favored the evolution of broad climatic tolerances in high -latitude species.
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The elevational gradient in altitudinal range: an extension of Rapoport's latitudinal rule to altitude.
TL;DR: The influence of latitudinal or altitudinal range size on local species richness is poorly understood, but the tendency for range margins to fall in species-rich, rather than species-poor, areas may mean that species- rich communities contain many species that are maintained only through immigration.
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Spatial Variation in Abundance
TL;DR: To quantify the magnitude and pattern of spatial variation in local population density within a single species, large numbers of samples are analyzed, representing a large geographic area or a wide range of ecological conditions.
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The causes of treeline
George C. Stevens,John F. Fox +1 more
TL;DR: This work uses a review of the current explanations for treelines to highlight those features of the tree growth form that appear to limit tree distribution and develops general principles of treeline ecology based on the ecological correlates of differences in plant growth form.
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Lianas as structural parasites: the Bursera simaruba example
TL;DR: The finding that lianas are detrimental to the fecundity of their hosts, coupled with the fact that lIANas require physical contact with trees as a consequence of their growth form, suggests that lians should be viewed as structural parasites of the trees that support them.