幼年两栖动物的营养生态学:两种无脊椎动物的相对食蜜水平

IF 0.8 4区 生物学 Q3 ZOOLOGY
Lucía Moreira-Demarco, Paloma Alvarez-Blanco, Juan Pablo Llopart, Elena Angulo, Raúl Maneyro
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引用次数: 0

摘要

营养生态位的研究是了解物种在生态系统中作用的基础。在两栖动物保护的情况下,考虑到这一生命阶段的脆弱性,研究幼年动物尤为重要。本研究评估了沙犀牛幼崽和沙狼幼崽的食性,特别关注了蚂蚁的发生率。通过分析两栖动物的胃内容物来量化其饮食组成。确定了不同分类猎物类群的代表性,探讨了两栖动物形态特征与猎物特征之间的关系。两种幼鱼的饮食组成和多样性存在差异。幼鱼在专门型-通才型光谱中处于中间位置。它们最常见的猎物是蚂蚁(主要是扶桑蚁和线螨),其次是螨虫。幼年齿蟾的饮食更为多样化。它们最常吃的猎物是等足目动物,其次是鞘翅目和杂种幼虫。齿齿鱼幼鱼的口鼻长度(SVL)大于砂嘴鱼幼鱼,但后者消耗的猎物更多。结果表明,与齿齿蟾相比,圆齿蟾幼崽更倾向于对蚂蚁的专门化。关键词:无尾蟾幼崽两栖类转化蚁群营养生态学齿齿蟾我们感谢Francisco Sola和Martín Bolazzi鉴定了一些蚂蚁属和种。我们感谢脊椎动物系统学和自然历史实验室-爬虫学团队(乌拉圭乌德拉尔科学学院)在我们整个工作过程中的贡献。我们感谢专业科学编辑杰西卡·皮尔斯(Jessica Pearce)提供的英文编辑服务。我们感谢编辑和三位匿名审稿人提供的宝贵反馈。披露声明作者未报告潜在的利益冲突。数据可用性声明本研究获得的数据在补充资料(附录1-2)中提供。本研究得到了西班牙经济和竞争力部[BES-2013-064713, EEBB-I-17-12165]和PEDECIBA Biología的财政支持。乌拉圭国家研究与创新局(ANII)和Andalucía地区政府(教育、研究和创新部,PROYEXCEL_00688在PAIDI 2020内)提供了部分支持。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Trophic ecology of juvenile amphibians: relative level of myrmecophagy in two anuran species
ABSTRACTResearch on trophic niche dimensions is essential to understanding the role of species in ecosystems. In the case of amphibian conservation, it is particularly important to study juveniles, given the vulnerability of this life stage. Here, the diets consumed by juvenile Rhinella arenarum and Odontophrynus sp. were evaluated, with special attention paid to the incidence of ants. Diet composition was quantified by analyzing the amphibians’ stomach contents. The representation of different taxonomic prey groups was determined, and the relationships between the amphibians’ morphological traits and the characteristics of their prey were explored. Diet composition and diversity differed between juveniles of the two species. Juvenile R. arenarum occupied an intermediate position along the specialist-generalist spectrum. Their most commonly consumed prey were ants (mainly Solenopsis and Linepithema) followed by mites. Juvenile Odontophrynus sp. had a more generalist diet. Their most commonly consumed prey were Isopoda followed by Coleoptera and miscellaneous larvae. Snout-vent length (SVL) was greater for juvenile Odontophrynus sp. than for juvenile R. arenarum, but the latter consumed more prey. The results suggest that juveniles of R. arenarum tend to specialize more on ants than do juveniles of Odontophrynus sp.KEYWORDS: Anurajuvenile amphibiansFormicidaetrophic ecologyRhinellaOdontophrynus AcknowledgmentsWe thank Francisco Sola and Martín Bolazzi for identifying some ant genera and species. We are grateful to the team at the Laboratory of Systematics and Natural History of Vertebrates -Herpetology (Faculty of Sciences, UdelaR, Uruguay) for their contributions over the entire course of our work. We thank Jessica Pearce, the professional science editor, for the English editing service. We appreciate the valuable feedback provided by the editors and three anonymous reviewers.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data obtained in this study are provided in the Supplementary Materials (Appendices 1–2).Additional informationFundingThis research was made possible by financial support from the Spanish Ministry of Economy and Competitiveness [BES-2013-064713, EEBB-I-17-12165], and PEDECIBA Biología. Partial support was provided by Uruguay’s National Agency for Research and Innovation (ANII) and the regional government of Andalucía (Department of Education, Research, and Innovation, PROYEXCEL_00688 within PAIDI 2020).
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来源期刊
CiteScore
2.20
自引率
11.10%
发文量
29
审稿时长
>12 weeks
期刊介绍: There is still a far from complete understanding of the complex ecosystems in the Neotropics, although they have been studied since the first expeditions of the old world naturalists Marcgrave, Humboldt, Spix, Darwin, Bates and Müller. The aims and scope of the Journal are, besides taxonomic and zoogeographic surveys, analyses of animal communities and their relationship with biotic and abiotic environmental conditions. This includes the fauna of both terrestrial and fresh water ecosystems in the Neotropics. Contributions that represent original research and mini-reviews are welcome. Manuscripts presenting just checklists and new geographic records are not considered for publication. If manuscripts do not meet the requirements of the journal, the editors reserve the right to reject manuscripts on submission or to ask for revisions prior to formal peer review.
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