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A stochastic simulation model for Asian elephant Elephas maximus populations and the inheritance of tusks

100%

Tiedemann R., Kurt F.

Acta Theriologica. Supplement

1995

nr 03

In the framework of available historical data on population size and human impact on the Asian elephant Elephas maximus Linnaeus, 1758, we developed a stochastic simulation model for elephant populations, which simulates individual elephants and includes their geno- and phenotype regarding the tusk character. The model omits density dependence of reproduction parameters and mortality rates. The model predicts female mortality and mean calving interval to be the paramount factors determining the long-term population trend. For simulated female mortality rates of 5% and 5.5% a mean calving interval of 5.2 years and 4.4-4.5 years, respectively, leads to stable populations, which is in accordance with values derived from field observations. Taking into account a higher mortality of tuskers due to human impact, frequencies of the tusk allele were simulated both for dominant and recessive inheritance of the tusk character. The best accordance with census data was achieved, when the tusk allele was assumed to be dominant, combined with a slight reproductive advantage for tuskers. Since the model simulates population dynamics and tusk allele frequencies under various mortality schedules, it can be used to predict the effect of conservation efforts on populations of the Asian elephant.

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Deterministic models and stochastic simulations in multiple reaction models in systems biology

80%

Laroch P., Puszynski K., Polanski A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

2011

tom 92

nr 3

Ograniczanie wyników

1 Acta Theriologica. Supplement

1 BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

1 Kurt F.

1 Laroch P.

1 Polanski A.

1 Puszynski K.

1 Tiedemann R.

1 2011

1 1995

Wyniki wyszukiwania

A stochastic simulation model for Asian elephant Elephas maximus populations and the inheritance of tusks

Deterministic models and stochastic simulations in multiple reaction models in systems biology