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Qualitative Models of Interactions between Two Populations [chapter]

Paulo Salles, Bert Bredeweg, Symone Araujo, Walter Neto
2002 Lecture Notes in Computer Science  
This paper presents qualitative models of interactions between two populations in biological communities.  ...  Using the qualitative theory about population dynamics already implemented in GARP, we created qualitative simulation models to support predictions about some of the most common behaviours of two interacting  ...  We have presented a set of qualitative simulation models that capture knowledge about the interactions between two populations.  ... 
doi:10.1007/3-540-47987-2_114 fatcat:c4zzxy7qnzctba7jne3txqltuu

Qualitative Reasoning about Population and Community Ecology

Paulo Salles, Bert Bredeweg
2004 The AI Magazine  
Acknowledgments This article is dedicated to Eugene Odum, who opened up new ways of thinking about ecology. Notes  ...  Qualitative Models of Interactions between Two Populations The previous section presented the basis for a qualitative domain theory of population dynamics.  ...  This theory is used as the basis for simulating models of typical interaction types between two populations.  ... 
doi:10.1609/aimag.v24i4.1732 dblp:journals/aim/SallesB04 fatcat:pgcwbifiezagblna3ui3yrp7si

The ants' garden: Qualitative models of complex interactions between populations

Paulo Salles, Bert Bredeweg, Nurit Bensusan
2006 Ecological Modelling  
Understanding interactions between populations is an important topic for research, management and education in ecology.  ...  These models are based on an implemented qualitative theory of population dynamics and re-use models about symbiosis, comensalism, amensalism and parasitism.  ...  University of Brasilia for their enthusiasm and fruitful discussions.  ... 
doi:10.1016/j.ecolmodel.2005.10.004 fatcat:rjwcozm5azcglnedkp3xatoop4

Modelling population and community dynamics with qualitative reasoning

Paulo Salles, Bert Bredeweg
2006 Ecological Modelling  
These models are the basis for more complex community models. The second cluster represents interactions between two populations, such as symbiosis, competition, and predation.  ...  We present qualitative models and simulations of population and community dynamics in the Brazilian Cerrado vegetation. The models are organised in clusters of predictive simulation models.  ...  Acknowledgements We would like to thank Bob Muetzelfeldt and the anonymous reviewers for their valuable comments on earlier versions of this article.  ... 
doi:10.1016/j.ecolmodel.2005.11.014 fatcat:mf4qwce3qnh2lbrgvrhbi3kqoe

Mediating conceptual knowledge using qualitative reasoning [chapter]

B. Bredeweg, P. Salles
2009 Handbook of Ecological Modelling and Informatics  
Conceptual models are defi ned as models that improve our understanding of systems and their behaviour [1] [2] [3] .  ...  Conceptual models come in a wide range of varieties, including word models, pictures, diagrams, matrices and certain mathematical models.  ...  The Garp3 software and models can be downloaded from the QRM portal: http://www.garp3.org.  ... 
doi:10.2495/978-1-84564-207-5/19 fatcat:k2qxwkrka5ey5bwku7aaok4qga

Resource Availability Modulates the Cooperative and Competitive Nature of a Microbial Cross-Feeding Mutualism

Tim A. Hoek, Kevin Axelrod, Tommaso Biancalani, Eugene A. Yurtsev, Jinghui Liu, Jeff Gore, Nathalie Balaban
2016 PLoS Biology  
Our results provide a general framework for how mutualisms may transition between qualitatively different regimes of interaction in response to changes in nutrient availability in the environment.  ...  In this study, we varied nutrient availability to examine how changing environments can affect the interaction between two cross-feeding yeast strains.  ...  We thank members of the Gore lab for helpful comments on the manuscript.  ... 
doi:10.1371/journal.pbio.1002540 pmid:27557335 pmcid:PMC4996419 fatcat:p6szmbpuq5dpzd3fd73jocvjfq

Modeling Rare Interactions in Time Series Data Through Qualitative Change: Application to Outcome Prediction in Intensive Care Units [article]

Zina Ibrahim, Honghan Wu, Richard Dobson
2020 arXiv   pre-print
by interactions between a small set of rare events, iii) these interactions are not necessarily definable by specific values (or value ranges) of a given group of variables, but rather, by the deviations  ...  Interactions among variables are represented by a relational graph structure, which relies on qualitative abstractions to overcome non-uniform sampling and to capture the semantics of the interactions  ...  An interpretation I is a subgraph containing a subset of the interactions in a population of qualitative interaction graphs G. There are three parameters in the model: λ1 −λ3.  ... 
arXiv:2004.01431v1 fatcat:kx5dpwjogffpxg4rrtmegya4gq

Page 912 of The Journal of Animal Ecology Vol. 74, Issue 5 [page]

2005 The Journal of Animal Ecology  
Discussion We have demonstrated two qualitative approaches for predicting the dynamics of simple to moderately complex communities.  ...  Veltman Kokako fledging of stoats rate Population Population Population abundance abundance abundance Species controlled of rats of possums Rats Low Mod Low Low Possums Mod Low High Low Stoats Mod Mod  ... 

The Syndromes Approach to Scaling Describing Global Change on an Intermediate Functional Scale

H.-J. Schellnhuber, M.K.B. Lüdeke, G. Petschel-Held
2002 Integrated Assessment  
A dynamic description of Global Change on an intermediate functional scale on the basis of approximately independent sub-models is elaborated.  ...  After an "idealistic deduction" of the main concepts an iterative procedure -formally based on Qualitative Differential Equations -is introduced which allows the systematic generalisation of case study  ...  In case of E > G m , the population finally vanishes (dot-dashed line). Fig. 8 . 8 Qualitative behaviours of the simple didactic model for a general logistic growth of the population dynamics.  ... 
doi:10.1076/iaij.3.2.201.13577 fatcat:bkadpvqtnvexlpnvxe65oha44u

Graphical means for inspecting qualitative models of system behaviour

Anders Bouwer, Bert Bredeweg
2008 Instructional Science  
This tool, named VISIGARP, incorporates a vocabulary of graphical elements for model ingredients and relationships, and combines these into interactive diagrams.  ...  This article presents the design and evaluation of a tool for inspecting conceptual models of system behaviour. The basis for this research is the GARP framework for qualitative simulation.  ...  Acknowledgements The authors would like to thank Peggy Tjaris for her role in carrying out the evaluation studies and analysis of the results, Paulo Salles for allowing us to use his model of the Brazilian  ... 
doi:10.1007/s11251-008-9083-4 fatcat:wjr7l2yxcbgyzmvp5zp5fkvspu

Ergonomic Chair Design by Fusing Qualitative and Quantitative Criteria Using Interactive Genetic Algorithms

A.M. Brintrup, J. Ramsden, H. Takagi, A. Tiwari
2008 IEEE Transactions on Evolutionary Computation  
This paper emphasizes the necessity of formally bringing qualitative and quantitative criteria of ergonomic design together, and provides a novel complementary design framework with this aim.  ...  The framework is rooted in multiobjective optimization, genetic algorithms, and interactive user evaluation.  ...  As the populations are on different islands, the parallel IGA does not induce a fight between the two objectives, qualitative and quantitative, as in the case of sequential IGA.  ... 
doi:10.1109/tevc.2007.904343 fatcat:jpxri7ypxvbqhm7cuyxboyiepu

Modeling population dynamics in the city: From a regional to a multi-agent approach

Itzhak Benenson
1999 Discrete Dynamics in Nature and Society  
In contrast, ecological models deal with several qualitatively different types of relationships between a small number of components, aimed at understanding the most general laws of urban dynamic.  ...  Regiorzal models deal with large numbers of urban regions involved in exchanging population and resources among themselves.  ...  Qualitatively, the behavior of a model's solutions depends on the feedback between population density and growth rate for a one-species system or on the type of inter-species interaction for a two-species  ... 
doi:10.1155/s1026022699000187 fatcat:floywkd5zzhidasi4i664nnb6y

Qualitative modelling and indicators of exploited ecosystems

Jeffrey M. Dambacher, Daniel J. Gaughan, Marie-Joëlle Rochet, Philippe A. Rossignol, Verena M. Trenkel
2009 Fish and Fisheries  
Acknowledgements We thank Keith Hayes and two anonymous reviewers for comments that improved the clarity of this work.  ...  This research was carried out as part of CSIRO's Wealth from Oceans National Research Flagship.  ...  Ó 2009 CSIRO Figure 5 5 (a) Signed digraph model of a two-fleet-two-stock fishery using the expanded fleet-stock model of Fig. 3a, with three dashed-lined links showing possible interactions between  ... 
doi:10.1111/j.1467-2979.2008.00323.x fatcat:oltwpu6cljantbuxsqlvms5pji

Epidemiological and Evolutionary Outcomes in Gene-for-Gene and Matching Allele Models

Peter H. Thrall, Luke G. Barrett, Peter N. Dodds, Jeremy J. Burdon
2016 Frontiers in Plant Science  
Gene-for-gene (GFG) and matching-allele (MA) models are qualitatively different paradigms for describing the outcome of genetic interactions between hosts and pathogens.  ...  variation in specific details of the functioning of interactions between hosts and pathogens, which may contain elements of both models.  ...  between the two models with disease incidence often approaching 100% in the MA model.  ... 
doi:10.3389/fpls.2015.01084 pmid:26779200 pmcid:PMC4703789 fatcat:2cafip7sefbkvprpinn3b65lfa

Testing Paradigms of Ecosystem Change under Climate Warming in Antarctica

Jessica Melbourne-Thomas, Andrew Constable, Simon Wotherspoon, Ben Raymond, Yan Ropert-Coudert
2013 PLoS ONE  
We use qualitative network models of differing levels of complexity to test paradigms of change for the WAP ecosystem.  ...  Our findings highlight key areas of uncertainty in the drivers of documented trends, and suggest that a greater level of model complexity is needed in devising explanations for ecosystem change in the  ...  Acknowledgments Thank you to Stuart Corney, Louise Emmerson, So Kawaguchi and Colin Southwell for helpful comments on model formulation, and on the manuscript (S. Corney).  ... 
doi:10.1371/journal.pone.0055093 pmid:23405116 pmcid:PMC3566216 fatcat:whve4m5m2zhfvhmnjdyh6ramci
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