Lycosa erythrognatha Lucas, 1833 (Araneae: Lycosidae) is a predatory arthropod with potential for conservation biological control. In addition to being considered a bioindicator of environmental quality, this arthropod provides an important service for agriculture by reducing insect-pest populations. In this work we seek to understand how the plants Andropogon bicornis L., Saccharum angustifolium Nees and Eustachys retusa Lag (Poales: Poaceae) and their different clump sizes affect the population density, spatial distribution and determination of the minimum number of samples to estimate its population density during the winter. Among the evaluated host plants, S. angustifolium and A. bicornis presented higher population density than E. retusa, but we observed that the clump diameter significantly influences the population density and the minimum number of samples. We observed a gregarious behavior in plants of A. bicornis and E. retusa. For S. angustifolium, a uniform distribution was observed.

中文翻译：

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空间分布和样本量，以估计冬虫草天蛾种群（Araneae：Lycosidae）的种群密度

狼毒Lycosa erythrognatha Lucas，1833年（Araneae：Lycosidae）是一种捕食性节肢动物，具有保护生物的潜力。除了被认为是环境质量的生物指示剂外，这种节肢动物还通过减少害虫数量为农业提供了重要的服务。在这项工作中，我们试图了解Andropogon bicornis L.，Saccharum angustifolium Nees和Eustachys retusa Lag（Poales：Poaceae）植物及其不同的团块大小如何影响种群密度，空间分布以及确定最小样本量以估计其种群数量。冬季的人口密度。在评估的寄主植物中，S。angustifolium和A. bicornis的种群密度高于E. retusa，但是我们观察到，团块直径会显着影响种群密度和最小样本数。我们观察到了在A. bicornis和E.retusa植物中的群居行为。对于沙门氏菌，观察到均匀分布。