Factors that determine the occurrence of native and introduced Spergularia species in Mediterranean coastal ecosystems

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-03-04 DOI:10.1080/17550874.2022.2078243

F. Nieva, Rocío Gago, M. Infante-Izquierdo, Alejandro Polo, V. Hermoso, A. Muñoz-Rodríguez

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引用次数: 1

Abstract

ABSTRACT Background Studies have found a close correlation between the dispersal of alien species and anthropogenic disturbance. However, in coastal Mediterranean ecosystems, the importance of human induced vs. naturally occurring habitat heterogeneity in influencing the distribution of native vs. exotic species remains poorly understood. Aims Our aim was to identify plant communities where native and introduced Spergularia species occur, the associated soil conditions, the effect of anthropogenic activities, and how these factors determine their distribution in Odiel Marshes Natural Park. Methods The occurrence of seven Spergularia species was studied in 92 vegetation patches. These patches were analysed for plant species composition, edaphic variables (humidity, pH, salinity, organic matter content and particles >0.2 mm), degree of inundation, degree of alteration and level of protection. Results The distribution of 5 native species was related mainly to edaphic factors, while the distribution of 2 species was related to the degree of anthropic impact. Conclusions Spergularia species show three patterns of distribution: S. heldreichii, S. fimbriata and S. media do not occupy altered zones. S. salina and S. nicaeensis naturally inhabit undisturbed habitats, but human alterations have increased their distribution. The presence of S. bocconi and S. purpurea is due to human transformation of this area.

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决定地中海沿岸生态系统中本地和引进的穗草物种发生的因素

背景研究发现，外来物种的扩散与人为干扰密切相关。然而，在地中海沿岸生态系统中，人类诱发的与自然发生的生境异质性在影响本地与外来物种分布方面的重要性仍然知之甚少。本研究的目的是在Odiel沼泽自然公园内确定原生和外来种麦草的植物群落、相关的土壤条件、人为活动的影响，以及这些因素如何决定其分布。方法对92个植被斑块中7种麦草的发生情况进行调查。对这些斑块的植物种类组成、土壤变量(湿度、pH、盐度、有机质含量和颗粒> ~ 0.2 mm)、淹没程度、蚀变程度和保护水平进行了分析。结果5种本地种的分布主要与地理因素有关，2种的分布与人为影响程度有关。结论刺草属植物的分布呈现三种格局:刺草、毛刺草和中刺草不占变化带。salina和S. nicaeensis自然栖息在未受干扰的栖息地，但人类的改变增加了它们的分布。S. bocconi和S. purpurea的存在是由于人类对该地区的改造。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.