Fractal Structures and Fractal Functions as Disease Indicators

作者: J. M. Escós , C. L. Alados , J. M. Emlen , J. M. Escos

DOI: 10.2307/3545661

关键词:

摘要: Developmental instability is an early indicator of stress, and has been used to monitor the impacts human disturbance on natural ecosystems. Here we investigate use different measures developmental two species, green peppers (Capsicum annuum), a plant, Spanish ibex (Capra pyrenaica), animal. For compared variance in allometric relationship between control plants, treatment group infected with tomato spotted wilt virus. The results show that plants have greater about regression line than plants. We also observed reduction complexity branch structure pepper viral infection. Box-counting fractal dimension architecture declined under stress tested behavioral patterns situations pyrenaica). Fractal head-lift frequency distribution predator detection efficiency. This decreased stressful conditions, such as advanced pregnancy parasitic Feeding activities reflect food searching Power spectral analysis proves be most powerful tool for characterizing behavior, revealing time activity

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