caa a22 4500 475838300 CHVBK 20180406123854.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s101440050009 doi (NATIONALLICENCE)springer-10.1007/s101440050009 Tanaka Y. Laboratory of Theoretical Ecology, Institute of Environmental Science and Technology, Yokohama National University, 79-7 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan Tel. +81-45-339-4367; Fax +81-45-339-4367 e-mail: tanaka@kan.ynu.ac.jp, JP aut Extinction of populations by inbreeding depression under stochastic environments [Elektronische Daten] [Y. Tanaka] Inbreeding depression may induce rapid extinction due to positive feedbacks between inbreeding depression and reduction of population size, which is often referred to as extinction vortex by inbreeding depression. The present analysis has demonstrated that the extinction vortex is likely to happen with realistic parameter values of genomic mutation rate of lethals or semilethals, equilibrium population size, intrinsic rate of natural increase, and rate of population decline caused by nongenetic extrinsic factors. Simulation models incorporating stochastic fluctuations of population size further indicated that extinction by inbreeding depression is facilitated by environmental fluctuations in population size. The results suggest that there is a positive interaction between genetic stochasticity and environmental stochasticity for extinction of populations by inbreeding depression. The Society of Population Ecology and Springer-Verlag Tokyo, 2000 Key words Extinction vortex nationallicence Deleterious mutation nationallicence Environmental stochasticity nationallicence Genetic load nationallicence Conservation biology nationallicence https://doi.org/10.1007/s101440050009 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s101440050009 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Tanaka Y. Laboratory of Theoretical Ecology, Institute of Environmental Science and Technology, Yokohama National University, 79-7 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan Tel. +81-45-339-4367; Fax +81-45-339-4367 e-mail: tanaka@kan.ynu.ac.jp, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer