Combining intransitive and higher-order effects in a coupled oscillator framework: A case study of an ant community.
Ecology
; 105(2): e4218, 2024 Feb.
Article
em En
| MEDLINE
| ID: mdl-38032663
ABSTRACT
A growing body of literature recognizes that pairwise species interactions are not necessarily an appropriate metaphorical molecule of community ecology. Two examples are intransitive competition and nonlinear higher-order effects. While these two processes have been discussed extensively, the explicit analysis of how the two of them behave when simultaneously part of the same dynamic system has not yet been explored theoretically. A concrete situation exists on coffee farms in Puerto Rico in which three ant species form an intransitive competitive triplet, and that triplet is strongly influenced, nonlinearly, by a fly parasitoid that modifies the competitive ability of one of the species. Using this arrangement as a template, we explore the dynamical consequences with a simple ordinary differential equation (ODE) model. Results are complicated and include alternative periodic and chaotic attractors. The qualitative structures of those complications, however, may be approximately retrieved from the basic natural history of the system.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Formigas
/
Ecologia
Limite:
Animals
País/Região como assunto:
Caribe
/
Puerto rico
Idioma:
En
Revista:
Ecology
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Estados Unidos