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Network Structure Changes in food webs: Implications to Ecological Risk Assessment

机译:网络结构在食物网中的变化:对生态风险评估的影响

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The objective of this paper is to provide a new Ecological Risk Assessment (ERA) method that simulates the structure and dynamics of complex ecological networks in a holistic manner and is appropriate for long-term temporal scales. In this study, the introduction of invasive or non-indigenous species (NIS) into an ecological system (food web) is chosen as an environmental stressor based on continued scientific interest regarding biological invasion. Here, we propose a novel in silico complement to ERAs that estimates the invasive ability of NIS and predicts which habitats and keystone species in the habitats are at risk. Major outputs from simulations include not only population dynamics, but also species and web structure properties. The simulations show that the properties of the invader are more important determinants of invasion success than the properties of the food web being invaded. This result suggests that management strategies that target invaders may be more successful than those that focus on the characteristics of the invaded habitat. The information will be very valuable for decision makers to estimate and predict ecological risks associated with environmental stressors.
机译:本文的目的是提供一种新的生态风险评估(时代)方法,以全面的方式模拟复杂生态网络的结构和动态,并且适用于长期时间尺度。在本研究中,基于对生物入侵的持续科学兴趣,将侵入性或非土着物种(NIS)引入生态系统(食品网)中。在这里,我们提出了一种在硅补充剂中提出了一种估计NIS的侵入能力,并预测栖息地的栖息地和梯形种类的侵袭能力有风险。仿真的主要输出不仅包括种群动态,还包括种类和网络结构属性。该模拟表明,入侵者的性质是侵袭成功的更重要的决定因素,而不是食物网的侵入性质。这一结果表明,目标入侵者的管理策略可能比专注于入侵栖息地特征的人更成功。该信息对于决策者来说,这些信息将为估计和预测与环境压力源相关的生态风险。

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