TY - JOUR
T1 - Complexity related to behavior of stability in mdoeled coastal zone ecosystems
AU - Pérez-España, H.
AU - Arreguín-Sánchez, F.
N1 - Funding Information:
ECOPATH file models used here and to Ellis Glazier, CIBNOR, for editing the English-language text. This contribution was partially sponsored by CONACyT and by the Instituto Politecnico Nacional through COFAA and EDD.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Based on four published mass-balanced ecosystem models from coastal zones, we studied the relationships of stability to some characteristics in ecosystems. Three attributes of stability, persistence, magnitude of changes in biomass and resilience, were analyzed using the ecopath and ecosim software. For each published model, five versions were obtained by randomly modifying connectance to change complexity. Simulation experiments were performed over 60 years and then stability attributes quantified. We found complexity was not closely related to stability. A high number of pools made the system less resilient, and a high connectance made them more resilient and more persistent. Our results suggest that ecosystems with generalist feeding species, without a preferred prey, have increased recovery time and more obvious disturbances. No clear effect was found when different trophic levels were disturbed in an ecosystem.
AB - Based on four published mass-balanced ecosystem models from coastal zones, we studied the relationships of stability to some characteristics in ecosystems. Three attributes of stability, persistence, magnitude of changes in biomass and resilience, were analyzed using the ecopath and ecosim software. For each published model, five versions were obtained by randomly modifying connectance to change complexity. Simulation experiments were performed over 60 years and then stability attributes quantified. We found complexity was not closely related to stability. A high number of pools made the system less resilient, and a high connectance made them more resilient and more persistent. Our results suggest that ecosystems with generalist feeding species, without a preferred prey, have increased recovery time and more obvious disturbances. No clear effect was found when different trophic levels were disturbed in an ecosystem.
KW - Complexity in ecosystem
KW - Ecopath
KW - Mass-balanced model
KW - Simulation
KW - Stability
UR - http://www.scopus.com/inward/record.url?scp=85011170099&partnerID=8YFLogxK
U2 - 10.1080/14634989908656948
DO - 10.1080/14634989908656948
M3 - Artículo
SN - 1463-4988
VL - 2
SP - 129
EP - 135
JO - Aquatic Ecosystem Health and Management
JF - Aquatic Ecosystem Health and Management
IS - 2
ER -