The Role of Nyctelia dorsata Fairmaire, 1905 (Coleoptera: Tenebrionidae) on Litter Fragmentation Processes and Soil Biogeochemical Cycles in Arid Patagonia

IF 1.3 3区农林科学 Q2 ENTOMOLOGY

Annales Zoologici Pub Date : 2022-03-30 DOI:10.3161/00034541ANZ2022.72.1.011

G. Cheli, Tomas Bosco, G. Flores

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引用次数: 4

Abstract

Abstract. Decomposition of organic matter and soil nitrogen (N) cycling is a key process in soil fertility. In arid ecosystems, plant litter remains intact for long periods and is gradually consumed by macrodetritivore arthropods. It is suggested that tenebrionid beetles are responsible for most of nutrient cycling from accumulated litter in warm and dry seasons in arid ecosystems. The objective of this work was to extent the role on soil fertility and N cycling to Nyctelia dorsata Fairmaire (Coleoptera: Tenebrionidae) throughout litter fragmentation and consumption in a manipulative pot experiment. Our results showed that litter presence alone is not enough to incorporate N to the soil. N. dorsata consumed a significant fraction of litter and this activity was associated to an increase in soil N contents in the experimental pots. These confirmed that several tenebrionid species positively affects soil fertility in Northeastern Patagonia throughout litter fragmentation/consumption; and that these effects may vary with body size. Consequently, these beetles might be very important into the food/energy web from plants to higher trophic levels in this region.

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干旱区巴塔哥尼亚凋落物破碎化过程及土壤生物地球化学循环的研究

摘要有机质分解和土壤氮循环是土壤肥力的关键过程。在干旱生态系统中，植物凋落物在很长一段时间内保持完整，并逐渐被大型食腐节肢动物消耗。在干旱生态系统中，暖季和旱季枯枝凋落物的养分循环主要由拟甲虫负责。本研究旨在通过盆栽盆栽试验，研究在凋落物破碎和消耗过程中，黄粉夜蛾(Nyctelia dorsata Fairmaire)对土壤肥力和氮循环的影响。我们的研究结果表明，单靠凋落物的存在不足以将氮吸收到土壤中。黑穗草消耗了大量凋落物，这种活性与盆栽土壤氮含量的增加有关。这些结果证实，在巴塔哥尼亚东北部凋落物破碎/消耗过程中，几种拟黄蜂对土壤肥力有积极影响;这些影响可能随着体型的不同而不同。因此，这些甲虫可能在该地区从植物到更高营养水平的食物/能量网中非常重要。

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来源期刊

Annales Zoologici 生物-动物学

CiteScore

1.60

自引率

27.30%

发文量

审稿时长

>12 weeks

期刊介绍： Annales Zoologici is published quarterly by the Museum and Institute of Zoology at the Polish Academy of Sciences. It is an international journal devoted to all aspects of systematic entomology (in a broad sense).