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Estimation of Dynamic Rate Parameters in Insect Populations Undergoing Sublethal Exposure to Pesticides

机译:亚致死性暴露于农药的昆虫种群动态速率参数的估计

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摘要

With newer, more environmentally friendly and, subsequently less lethal, pesticides in use, evaluating efficacy of a pesticide now requires more than simply counting deaths after treatment. A discrete, age-structured matrix model that incorporates a species’ life history traits (such as birth rate, death rate and fecundity) has previously been used by ecologists. This model will be presented and discussed along with an alternative continuous, age-structured model which offers significant advantage in considering sublethal damage. We use this continuous model to estimate time-dependent mortality parameters in an ordinary least-squares technique. Confidence intervals are given and results from tests for statistical significance of added parameters are presented.
机译:随着使用更新,更环保,且随后减少致死性的农药,评估农药的功效现在不仅需要简单地计算治疗后的死亡人数,还需要更多。生态学家以前曾使用一种离散的,具有年龄结构的矩阵模型,该模型结合了物种的生活史特征(例如出生率,死亡率和繁殖力)。将介绍和讨论此模型,以及一种替代的,具有年龄结构的连续模型,该模型在考虑亚致死性损害方面具有显着优势。我们使用这种连续模型来估算普通最小二乘法中随时间变化的死亡率参数。给出了置信区间,并给出了添加参数的统计显着性的测试结果。

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