Red squirrel Sciurus vulgaris abundance in coastal cliffs in the South of Spain

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-09-20 DOI:10.32800/abc.2023.46.0177

J. Duarte, M. Á. Farfán

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Abstract

We studied the abundance of red squirrels, a medium-sized forest rodent widely distributed throughout the Palearctic, in the cliffs of Maro-Cerro Gordo (south of Spain, Málaga-Granada), a protected area with a great marine influence. We investigated the abundance of squirrels in this area in relation to two scales: (1) home range, as signs per square meter; and (2) landscape, as active nests per 1 x 1 km UTM grids. We tested the influence of land use and habitat features on the abundance of squirrels. On the home range scale, squirrel activity was higher in mature pines located near cliffs and in pines near freshwater channels. The cliffs hosted the best pine forest patches, and despite being very close to the sea, squirrels often used these as feeding areas but not as areas for building nests. On the landscape scale, squirrel nests were rarer in grids with more herbaceous crops and were more abundant in grids with longer freshwater streams. These results suggest that the squirrels in this area may have adapted to life at this site and to the marine influence via a differential use of habitat. The squirrels' use of the best feeding areas suggests saline stress is counteracted by establishing nests in humid areas away from cliffs.

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红松鼠在西班牙南部的海岸悬崖上非常丰富

我们研究了红松鼠的数量，红松鼠是一种中等大小的森林啮齿动物，广泛分布在整个古北极地区，在Maro-Cerro Gordo(西班牙南部，Málaga-Granada)的悬崖上，这是一个受海洋影响很大的保护区。我们调查了该地区松鼠的丰度与两个尺度的关系:(1)家园范围，作为每平方米的标志;(2)景观，每1 x 1 km UTM网格作为活动巢。我们测试了土地利用和栖息地特征对松鼠数量的影响。在原生地尺度上，靠近悬崖的成熟松林和靠近淡水河道的松林松鼠活动较高。悬崖上有最好的松林，尽管离海很近，松鼠经常把这些地方当作觅食区，而不是筑巢区。在景观尺度上，在草本作物较多的网格中，松鼠巢较少，而在淡水溪流较长的网格中，松鼠巢较多。这些结果表明，该地区的松鼠可能已经适应了该地点的生活，并通过对栖息地的不同利用来适应海洋的影响。松鼠对最佳觅食区域的使用表明，通过在远离悬崖的潮湿地区筑巢来抵消盐胁迫。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.