Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach
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...
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1989
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043800_v47_n3-4_p265_Aizen http://hdl.handle.net/20.500.12110/paper_03043800_v47_n3-4_p265_Aizen |
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paper:paper_03043800_v47_n3-4_p265_Aizen2023-06-08T15:29:17Z Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach island biogeography species-area relationship 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. 1989 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043800_v47_n3-4_p265_Aizen http://hdl.handle.net/20.500.12110/paper_03043800_v47_n3-4_p265_Aizen |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
island biogeography species-area relationship |
| spellingShingle |
island biogeography species-area relationship Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| topic_facet |
island biogeography species-area relationship |
| description |
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. |
| title |
Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| title_short |
Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| title_full |
Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| title_fullStr |
Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| title_full_unstemmed |
Fit of logspecies-logarea regression lines to nonequilibrium archipelagos: A simulation approach |
| title_sort |
fit of logspecies-logarea regression lines to nonequilibrium archipelagos: a simulation approach |
| publishDate |
1989 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03043800_v47_n3-4_p265_Aizen http://hdl.handle.net/20.500.12110/paper_03043800_v47_n3-4_p265_Aizen |
| _version_ |
1768543421940629504 |