Open AccessCompetition promotes the persistence of populations in ecosystems
Author(s) -
Tao Wang,
Jinqiao Duan,
Tong Liu
Publication year - 2016
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/srep30477
Subject(s) - persistence (discontinuity) , competition (biology) , ecosystem , ecology , robustness (evolution) , predation , population , storage effect , biology , competitive exclusion , demography , genetics , geotechnical engineering , sociology , engineering , gene
Competition is one of the most common form in ecological systems, which plays important roles in population dynamics. However, the influences of competition on persistence of populations remain unclear when space effect is included. In this paper, we investigated a predator-prey model with competition and spatial diffusion. Based on pattern formations and time series of populations, we found that competitions induce the persistence of populations, which denies competitive exclusion principle . Moreover, we testify the robustness of these effects. Our results also suggest that space may lead to the emergence of new phenomenon in ecosystems.