捕食者密度对凋落物蝎觅食行为和微生境选择的影响

IF 0.9 Q4 ECOLOGY Neotropical Biodiversity Pub Date : 2022-09-21 DOI:10.1080/23766808.2022.2126020
Vinicius B. Pessoa, G. J. Moura, A. Lira
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引用次数: 0

摘要

摘要捕食者的存在会导致猎物的行为发生变化,例如觅食活动减少。先前的研究表明,蝎Ananteris mauryi有能力识别其体内捕食者Tityus pusilus的化学痕迹,从而降低其探索活动。本研究比较了毛白杨在不同密度的自然环境中的觅食活动。这项研究是在19:00至22:00期间对巴西伯南布哥大西洋森林的五个碎片进行的积极搜索,其中一个碎片密度较低,四个碎片密度较高。总共观察到81个毛耳球虫个体,49.4%的个体记录在低密度毛耳蠊区域。总体而言,A.mauryi个体在T.pusilus密度较低和较高的碎片中表现出相似的觅食活动。类似地,在落叶层底层发现了A.mauryi,与T.pusilus的密度无关。因此,我们的研究结果表明,它们的捕食者密度对毛白杨的觅食活动和微栖息地选择没有任何影响。
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Influence of predator density in foraging behavior and microhabitat choice on litter-dwelling scorpions
ABSTRACT The presence of a predator can cause behavioral changes in its prey, such as decreased foraging activity. Previous studies have indicated that the scorpion Ananteris mauryi has the ability to identify the chemical traces of its intraguild predator Tityus pusillus, causing it to reduce its exploratory activity. In this study, the foraging activities of A. mauryi in a natural environment with different densities of T. pusillus were compared. The study was carried out through active searches from 19:00 to 22:00 in five fragments of the Atlantic Forest in Pernambuco, Brazil, one having a low density of T. pusillus and four returning high densities. In total, 81 individuals of A. mauryi were observed, and 49.4% were recorded in the area with a low density of T. pusillus. In general, A. mauryi individuals exhibited a similar foraging activity in the fragment with low and higher density of T. pusillus. Similarly, A. mauryi was found on leaf litter bottom layers independently of T. pusillus density. Therefore, our results suggest that their predator density does not exert any influence on foraging activity and microhabitat choice in A. mauryi.
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来源期刊
Neotropical Biodiversity
Neotropical Biodiversity Environmental Science-Ecology
CiteScore
1.80
自引率
0.00%
发文量
39
审稿时长
24 weeks
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