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Abstract:

In the past, significant positive slopes of logspecies-logarea lines were interpreted exclusively in the context of the equilibrium theory of island biogeography. A good fit to the regression model was given as evidence for equilibrium in species' richness. Here, I investigate whether or not a good fit to the linear version of the power function is frequently obtained in hypothetical nonequilibrium archipelagos with islands possessing species numbers below equilibrium. The proportions of positive significant logspecies-logarea regressions fitted to several archipelagos with randomly generated species' numbers are appreciably greater than zero (between ≈ 0.17 and 0.93) for a broad range of situations. When decreasing exponential and logistic colonization models were simulated, the probability of obtaining a significant positive slope approached one. The two models produce distinct predictions about the relationship between the slope of the logspecies-logarea line fitted to nonequilibrium archipelagos and the slope under equilibrium conditions. © 1989.

Registro:

Documento: Artículo
Título:Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach
Autor:Aizen, M.A.
Filiación:Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:island biogeography; species-area relationship
Año:1989
Volumen:47
Número:3-4
Página de inicio:265
Página de fin:273
DOI: http://dx.doi.org/10.1016/0304-3800(89)90004-5
Título revista:Ecological Modelling
Título revista abreviado:Ecol. Model.
ISSN:03043800
CODEN:ECMOD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043800_v47_n3-4_p265_Aizen

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Citas:

---------- APA ----------
(1989) . Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach. Ecological Modelling, 47(3-4), 265-273.
http://dx.doi.org/10.1016/0304-3800(89)90004-5
---------- CHICAGO ----------
Aizen, M.A. "Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach" . Ecological Modelling 47, no. 3-4 (1989) : 265-273.
http://dx.doi.org/10.1016/0304-3800(89)90004-5
---------- MLA ----------
Aizen, M.A. "Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach" . Ecological Modelling, vol. 47, no. 3-4, 1989, pp. 265-273.
http://dx.doi.org/10.1016/0304-3800(89)90004-5
---------- VANCOUVER ----------
Aizen, M.A. Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach. Ecol. Model. 1989;47(3-4):265-273.
http://dx.doi.org/10.1016/0304-3800(89)90004-5