Neutral competition boosts cycles and chaos in simulated food webs

Autor: Pablo Rodríguez-Sánchez, Egbert H. van Nes, Marten Scheffer
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Royal Society Open Science, Vol 7, Iss 6 (2020)
Druh dokumentu: article
ISSN: 2054-5703
DOI: 10.1098/rsos.191532
Popis: Similarity of competitors has been proposed to facilitate coexistence of species because it slows down competitive exclusion, thus making it easier for equalizing mechanisms to maintain diverse communities. On the other hand, previous studies suggest that chaotic ecosystems can have a higher biodiversity. Here, we link these two previously unrelated findings, by analysing the dynamics of food web models. We show that near-neutrality of competition of prey, in the presence of predators, increases the chance of developing chaotic dynamics. Moreover, we confirm that chaotic dynamics correlate with a higher biodiversity.
Databáze: Directory of Open Access Journals