STUDY OF THE ISOTOPIC ECOLOGICAL NICHE OF THE COMMON COOT FULICA ATRA (LAC TONGA, NORTHEASTERN ALGERIA)

IF 0.6 4区环境科学与生态学 Q4 ECOLOGY

Applied Ecology and Environmental Research Pub Date : 2023-01-01 DOI:10.15666/aeer/2104_31233138

N. Nouri, M. Rachedi, A. Lazli, F. Samar

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Abstract

. This study aims to determine patterns of isotope discrimination between diet and blood and feathers in the common coot ( Fulica atra) in Lake Tonga, North-eastern Algeria, the first time in Algeria on the aquatic avifauna. For this purpose, we investigate the trophic position of the species looking for the seasonal variations in the diet. The stable isotope analysis of nitrogen and carbon was carried out to provide a comprehensive evaluation of the feeding ecology. After plotting the isotopic composition of all potential food sources in the mixing plot, consumed by the coat, whether it is on feathers or blood, the results revealed that the main source of the coot diet in all seasons is Najas pectinata , followed by Gambusia affinis. Whereas, for Nymphaea alba a stable contribution was recorded during both seasons (breeding and reproduction). The food selection of a species is predetermined by its ability to exploit its trophic space, on one hand, and specific nutritional requirements are also essential to various biological functions of the species concerned.

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阿尔及利亚东北部汤加岛富利卡白骨顶同位素生态位的研究

。本研究旨在确定阿尔及利亚东北部汤加湖普通骨顶(Fulica atra)的饮食与血液和羽毛之间的同位素区分模式，这是阿尔及利亚首次对水生鸟类进行的研究。为此，我们调查了该物种的营养地位，寻找饮食的季节性变化。通过氮、碳稳定同位素分析，对饲养生态进行综合评价。通过对混合区所有潜在食物来源的同位素组成进行分析，发现白骨顶一年四季的主要食物来源是Najas pectinata，其次是Gambusia affinis。而在两个季节(繁殖季节和繁殖季节)，对白若虫的贡献都是稳定的。一方面，物种的食物选择是由其利用其营养空间的能力决定的，而且特定的营养需求对于物种的各种生物功能也是必不可少的。

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来源期刊

Applied Ecology and Environmental Research ECOLOGY-ENVIRONMENTAL SCIENCES

CiteScore

1.40

自引率

14.30%

发文量

104

审稿时长

14 months

期刊介绍： The Journal publishes original research papers and review articles. Researchers from all countries are invited to publish pure or applied ecological, environmental, biogeographical, zoological, botanical, paleontological, biometrical-biomathematical and quantitative ecological or multidisciplinary agricultural research of international interest on its pages. The focus is on topics such as: -Community, ecosystem and global ecology- Biometrics, theoretical- and quantitative ecology- Multidisciplinary agricultural and environmental research- Sustainable and organic agriculture, natural resource management- Ecological methodology, monitoring and modeling- Biodiversity and ecosystem research, microbiology, botany and zoology- Biostatistics and modeling in epidemiology, public health and veterinary- Earth history, paleontology, extinctions, biogeography, biogeochemistry- Conservation biology, environmental protection- Ecological economics, natural capital and ecosystem services- Climatology, meteorology, climate change, climate-ecology. The Journal publishes theoretical papers as well as application-oriented contributions and practical case studies. There is no bias with regard to taxon or geographical area. Purely descriptive papers (like only taxonomic lists) will not be accepted for publication.