1. General Model Information

Name: Simulator of faunal biodiversity

Acronym: BIODIV

Main medium: terrestrial
Main subject: population dynamics
Organization level: Population
Type of model: ordinary differential equations
Main application: research
Keywords: diversity, bird species, animals, disturbanc, tropical rain forest fauna

Contact:

Peter Koehler
Alfred Wegener Institute for Polar and Marine Research,
PO Box 12 01 61,
D-27515 Bremerhaven,
Germany

Phone: +49 471 4831 1687
Fax: +49 471 4831 1149
email: pkoehler@awi-bremerhaven.de
Homepage: http://www.awi-bremerhaven.de/People/show?pkoehler

Author(s):

Kai Reinhard, Andreas Huth, Peter Koehler

Abstract:

We used an aggregated modelling approach to simulate the impacts of anthropogenic disturbances on the long-term dynamics of faunal diversity in tropical rain forests. We restricted our study to bird communities even though the approach is more general. We developed a model called BIODIV which simulated the establishment of hypothetical bird species in a forest. Our model was based on the results of a simple matrix model which calculated the spatio-temporal dynamics of a tropical rain forest in Malaysia. We analysed the establishment of bird species in a secondary forest succession and the impacts of 60 different logging scenarios on the diversity of the bird community. Of the three logging parameters (cycle length, method, intensity), logging intensity had the most servere impact on the bird community. In the worst case the number of bird species was reduced to 23% of the species richness found in a primary forest.

II. Technical Information

II.1 Executables:

Operating System(s): Linux, Unix

II.2 Source-code:

Programming Language(s): C++

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

Number of bird species per area
Number of individual birds per area

III.2.1 Input

Data on average +- SD for a whole faunal community of
- mortality,
- reproduction,
- immigration,
- competition
Time series of habitats in underlying forest (measurements or other simulation results) including natural and anthropogenic disturbances

III.2.2 Output

Total number of supported species
Total number of individuals
Diversity indices such as Shannon-Wiener-Index
Spatial resolution depends only on underlyung vegetation model or data

IV. References

Koehler, P., Reinhard, K., Huth, A. (2002). Simulating anthropogenic impacts to bird communities in tropical rain forests, Biological Conservation, 108, 35-47.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: : Wed Sep 18 13:55:45 2002
Status of the document: Contributed by Peter Koehler
last modified by Joachim Benz Wed Sep 18 15:03:02 CEST 2002