Cellular Automaton Models of Interspecific Competition for Space--The Effect of Pattern on Process

1992 ◽  
Vol 80 (3) ◽  
pp. 527 ◽  
Author(s):  
Jonathan Silvertown ◽  
Senino Holtier ◽  
Jeff Johnson ◽  
Pam Dale
Keyword(s):  
Cellular Automaton ◽  
Interspecific Competition ◽  
Competition For Space

Interspecific Competition for Space Between Wetland Plants with Clonal Growth

Wetlands ◽  
2014 ◽  
Vol 34 (5) ◽  
pp. 1003-1012 ◽  
Author(s):  
Étienne Paradis ◽  
Marie-Ève Bellavance ◽  
Bastien Fontaine ◽  
Jacques Brisson
Keyword(s):  
Interspecific Competition ◽  
Clonal Growth ◽  
Wetland Plants ◽  
Competition For Space

Response To Con- and Heterospecific Male Odours By the Voles Micro Tus a Grestis, M. Arvalis and Clethrionomys Glareolus With Respect To Competition for Space

Behaviour ◽  
1980 ◽  
Vol 73 (3-4) ◽  
pp. 277-302 ◽  
Author(s):  
Gerrit De Jonge
Keyword(s):  
Interspecific Competition ◽  
Home Cage ◽  
The Other ◽  
Clethrionomys Glareolus ◽  
Microtus Agrestis ◽  
Heterospecific Male ◽  
Competition For Space ◽  
Per Se

AbstractAdults of Microtus agrestis, M. arvalis and Clethrionomys glareolus were offered the opportunity to explore an experimental alley, a section of which contained male odours of either of the three species. Neither of the species explored one of the sections of the alley more than the other one if the choice was between a section with conspecific odour and a non-odorous section. Both M. agrestis and C. glareolus preferred the non-odorous section when the choice was between M. arvalis odour and a non-odorous section. If an encounter with another vole was arranged in the alley before the opportunity was given to explore the partly odorous alley, then some additional avoiding responses to odours were assessed. M. agrestis now avoided both alien male conspecific odours and its own home cage odours. M. arvalis now avoided both the odours of C. glareolus and M. agrestis. Other responses to odours were not affected by an encounter. An encounter per se did not lead a vole to avoid the place where it had taken place. The survival value and the possible role of the avoiding tendencies in intra- and interspecific competition for space are discussed. Probably, odour avoidance is only an additional way in the communication between voles.

Aspects saisonniers de la fixation de l’épifaune benthique de l’étage infralittoral de l’estuaire du Saint-Laurent

1973 ◽  
Vol 30 (7) ◽  
pp. 867-880 ◽  
Author(s):  
E. Bourget ◽  
G. Lacroix
Keyword(s):  
Interspecific Competition ◽  
Salinity Gradient ◽  
Settlement Period ◽  
Competition For Space ◽  
Polydora Ciliata ◽  
June July ◽  
Autumn And Winter ◽  
Balanus Balanoides ◽  
Hydrodynamic Factors ◽  
Hard Substrata

This work conducted during two seasons (May–October 1969, 1970) was designed to study the dynamic aspects of the settlement of benthic epifauna on hard substrata. The stations were distributed on a 200-km distance, the salinity gradient ranging from 15 to 27‰. Although over 60 species were identified on the plates, the analysis shows that only three of these are abundant: Polydora ciliata, Balanus balanoides, and Balanus crenatus. In general, the settlement period of the species is very short and most of the settling processes are concentrated in June, July, and August. The populations reached a peak of abundance during settlement and decreased regularly afterwards. This decrease is due mainly to intraspecific and interspecific competition for space, accumulation of sediment, and hydrodynamic factors in autumn. The marked physical seasonality of this subarctic environment, more than true biotic succession, is reflected in the development of the community: during the summer, the community is biologically accommodated, whereas in autumn and winter it is physically controlled.

A Probabilistic Cellular Automaton for Evolution

1995 ◽  
Vol 5 (9) ◽  
pp. 1129-1134 ◽  
Author(s):  
Nikolaus Rajewsky ◽  
Michael Schreckenberg
Keyword(s):  
Cellular Automaton ◽  
Probabilistic Cellular Automaton

Autómatas Celulares Aplicados al Comportamiento de Células de Cáncer Cervicouterino

2019 ◽  
Vol 6 (1) ◽  
pp. 44-49
Author(s):  
Tania Muñoz Jiménez ◽  
Aurora Torres Soto ◽  
María Dolores Torres Soto
Keyword(s):  
Cellular Automaton ◽  
Medical Model ◽  
Research Process ◽  
Simulation Algorithm ◽  
Stages Of Development ◽  
Literary Research ◽  
Migration Dynamics ◽  
Three Stages ◽  
And Migration ◽  
Best Parameters

En este documento se describe el desarrollo e implementación de un modelo para simular computacionalmente la dinámica del crecimiento y migración del cáncer cervicouterino, considerando sus principales características: proliferación, migración y necrosis, así como sus etapas de desarrollo. El modelo se desarrolló mediante un autómata celular con enfoques paralelo y secuencial. El autómata celular se basó en el modelo de Gompertz para simular las etapas de desarrollo de este cáncer, el cual se dividió en tres etapas cada una con diferentes comportamientos durante la simulación. Se realizó un diseño experimental con parámetros de entrada que se seleccionaron a partir de la investigación literaria y su discusión con médicos expertos. Al final del proceso de investigación, se logró obtener un algoritmo computacional de simulación muy bueno comparado con el modelo médico de Gompertz y se encontraron los mejores parámetros para su ejecución mediante un diseño factorial soportado estadísticamente. This paper describes the development and implementation of a model to computationally simulate the growth and migration dynamics of cervical cancer, considering its main characteristics: proliferation, migration and necrosis, as well as its stages of development. The model was developed by means of a cellular automaton with parallel and sequential approaches. The cellular automaton was based on the model of Gompertz to simulate the stages of development of this cancer, which was divided into three stages, each with different behaviors during the simulation. An experimental design was carried out with input parameters that were selected from literary research and its discussion with expert physicians. At the end of the research process, a very good simulation algorithm was obtained compared to the Gompertz medical model and the best parameters for its execution were found by means of a statistically supported factorial design.

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