Inadequate Sampling Rates Can Undermine the Reliability of Ecological Interaction Estimation

Autor(es)

Cabella, Brenno ^[1] ; Meloni, Fernando ^[2] ; Martinez, Alexandre S. ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Inst Fis Teor, UNESP, Rua Dr Bento Teobaldo Ferraz 271, BR-01140070 Sao Paulo - Brazil

^[2] Univ Sao Paulo, FFCLRP, Ave Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil

^[3] INCT SC, Rua Dr Xavier Sigaud 150, BR-22290180 Urca, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MATHEMATICAL AND COMPUTATIONAL APPLICATIONS; v. 24, n. 2 JUN 2019.
• Citações Web of Science: 0

Resumo

Cycles in population dynamics are abundant in nature and are understood as emerging from the interaction among coupled species. When sampling is conducted at a slow rate compared to the population cycle period (aliasing effect), one is prone to misinterpretations. However, aliasing has been poorly addressed in coupled population dynamics. To illustrate the aliasing effect, the Lotka-Volterra model oscillatory regime is numerically sampled, creating prey-predator cycles. We show that inadequate sampling rates may produce inversions in the cause-effect relationship among other artifacts. More generally, slow acquisition rates may distort data interpretation and produce deceptive patterns and eventually leading to misinterpretations, as predators becoming preys. Experiments in coupled population dynamics should be designed that address the eventual aliasing effect. (AU)

• Processo FAPESP: 13/06196-4 - Estudo da comunidade edáfico-epígea como um sistema complexo e auto-organizado
• Beneficiário: Fernando Meloni
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado