Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/0304-3800(94)90018-3
Title (Primary) Stochastic birth and death processes describing minimum viable populations
Author Wissel, C.; Zaschke, S.-H.
Source Titel Ecological Modelling
Year 1994
Department OESA
Volume 75-76
Page From 193
Page To 201
Language englisch
Keywords Demography; Population dynamics; Stochasticity
Abstract A model of stochastic birth and death processes which includes demographic and environmental stochasticity is used to determine the chance of survival of small populations with overlapping generations. Mean life times dependent on the present size of the population and the probability of recovery are calculated. It is shown how the mean life time is related to the concept of minimum viable population. For moderate environmental noise, a critical individual number is found above which a population is relatively safe against extinction. The overwhelming importance of the environmental noise is demonstrated. It is shown that the mean life times increases with increasing capacity K in a way which is determined by the environmental noise. The smaller this noise the stronger is this increase.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=21560
Wissel, C., Zaschke, S.-H. (1994):
Stochastic birth and death processes describing minimum viable populations
Ecol. Model. 75-76 , 193 - 201 10.1016/0304-3800(94)90018-3