Graduate studies at Western
Acta Biotheoretica 54 (4) (2006)
|Abstract||This paper distinguishes four recognisably different geographical processes in principle causing species to die out. One of these processes, the one we dub “range eclipse”, holds that one range expands at the expense of another one, thereby usurping it. Channell and Lomolino (2000a, Journal of Biogeography 27: 169–179; 2000b, Nature 403: 84–87; see also Lomolino and Channell, 1995, Journal of Mammalogy 76: 335–347) measured the course of this process in terms of the proportion of the total range remaining in its original centre, thereby essentially assuming a homogeneous distribution of animals over the range. However, part of their measure seems mistaken. By giving a general, analytical formulation of eclipsing ranges, we estimate the exact course of this process. Also, our formulation does not partition a range into two spatially equal parts, its core and its edge, but it assumes continuity. For applying this model to data on the time evolution of species, individual time series should be available for each of them. For practical purposes we give an alternative way of plotting and interpreting such time series. Our approach, being more sensitive than Channell and Lomolino’s, gives a less optimistic indication of range eclipses than theirs once these have started.|
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Sergiu Rudeanu & Dan A. Simovici (2006). On the Ranges of Algebraic Functions on Lattices. Studia Logica 84 (3):451 - 468.
Ernst Mayr (1996). What is a Species, and What is Not? Philosophy of Science 63 (2):262-277.
Marc Ereshefsky (2010). Darwin's Solution to the Species Problem. Synthese 175 (3):405 - 425.
Mark Ridley (1989). The Cladistic Solution to the Species Problem. Biology and Philosophy 4 (1):1-16.
Herbert L. Roitblat (1998). Mechanisms of Imitation: The Relabeled Story. Behavioral and Brain Sciences 21 (5):701-702.
Bradley E. Wilson (1995). A (Not-so-Radical) Solution to the Species Problem. Biology and Philosophy 10 (3):339-356.
William C. French (1995). Against Biospherical Egalitarianism. Environmental Ethics 17 (1):39-57.
Timothy Chappell (2001). Option Ranges. Journal of Applied Philosophy 18 (2):107–118.
Added to index2009-01-28
Total downloads4 ( #189,403 of 739,163 )
Recent downloads (6 months)1 ( #61,778 of 739,163 )
How can I increase my downloads?