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首页> 外文期刊>Journal of Medical Entomology >Carcass enrichment does not alter decay rates or arthropod community structure: A test of the arthropod saturation hypothesis at the Anthropology Research Facility in Knoxville, Tennessee
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Carcass enrichment does not alter decay rates or arthropod community structure: A test of the arthropod saturation hypothesis at the Anthropology Research Facility in Knoxville, Tennessee

机译：体富集不会改变腐烂率或节肢动物群落结构：田纳西州诺克斯维尔市人类学研究设施对节肢动物饱和度假说的检验

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摘要

In a test of an arthropod saturation hypothesis, we asked if the 30-yr history of carcass enrichment at the Anthropology Research Facility, Knoxville TN, has altered carcass decay rates or community structure of sarcosaprophagous arthropods, compared with three local nonenriched sites. Over a 12-d period in 1998, using pitfall traps and sweep nets, we sampled a total of 81,000 invertebrates from freshly euthanized pigs (Su scrofa L.) placed in these sites. From this number, we sorted 69,286 forensically important (sarcosaprophagous) arthropods. The community structure of these organisms, as measured by species and individuals accumulation curves, rarefaction, and nonparametric correlation, was comparable in all four sites in taxonomic similarity, colonization rates, aerial species richness, and ranked abundances of forensically important taxa on a per carcass basis. Measures of carcass decay rate, remaining carcass weight (%) and periodic weight loss, also were similar. In most cases, carcass surface temperatures and maggot mass temperatures were also statistically indistinguishable. Probability-based results and posthoc power analyses of these variables led us to conclude that the sarcosaprophagous arthropod community of the Anthropology Research Facility is representative of surrounding sites.
机译：在对节肢动物饱和度假说的检验中，我们询问了人类学研究设施（诺克斯维尔田纳西州）30年的enrich体富集史是否与3个本地未富集的地点相比改变了肉食性节肢动物的car体腐烂率或群落结构。在1998年的12天中，我们使用陷阱陷阱和清扫网，从放置在这些地点的新鲜安乐死猪（Su scrofa L.）采样了总共81,000只无脊椎动物。从这个数字中，我们对69286个具有法医学意义的重要节肢动物（节肢动物）进行了分类。通过物种和个体的积累曲线，稀疏性和非参数相关性来衡量，这些生物的群落结构在分类相似性，定植率，气生物种丰富度和每个car体上具有法证重要性的分类单元的丰度方面在所有四个地点均具有可比性基础。 car体腐烂率，remaining体剩余重量（％）和周期性体重减轻的度量也相似。在大多数情况下，car体表面温度和质量温度在统计学上也无法区分。基于概率的结果和这些变量的事后力量分析使我们得出结论，人类学研究机构的肉食性节肢动物群落是周围地点的代表。

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