Relationships between bird species richness and different facets of landscape heterogeneity – insights from a military area

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-04-20 DOI:10.25225/jvb.23012

Lenka Dvořáková, Jana Hernová, Ondřej Bušek, J. Reif

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引用次数: 1

Abstract

Abstract. Military areas often host extraordinary biodiversity compared to the typical agricultural landscape in Europe. It has been suggested that this is due to the high landscape heterogeneity caused by disturbances from military training. This study aimed to test this hypothesis using data from the military area Hradiště and nearby farmland in the Czech Republic (Central Europe). Here, we measured two facets of landscape heterogeneity – the number of woody vegetation patches and habitat diversity – and supplemented these measures with previously published data from bird point counts performed on the same sites. The number of woody vegetation patches was higher in the military area than in the farmland and was positively related to the species richness of birds of conservation concern. Habitat diversity did not differ between both regions. It showed, however, a hump-shaped relationship with total bird species richness. Our results indicate that open landscapes of military areas host a higher number of birds of conservation concern than the farmland due to a finer grain of woodland-grassland mosaic. To support more bird species, it is essential to keep habitat diversity high in open landscapes but at a level that does not harm bird populations by area limitation.

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鸟类物种丰富度与景观异质性的关系——来自某军事地区的见解

摘要与欧洲典型的农业景观相比，军事地区往往拥有非凡的生物多样性。有人认为，这是由于军事训练干扰造成的景观高度异质性所致。本研究旨在利用捷克共和国(中欧)军事地区Hradiště和附近农田的数据来检验这一假设。在这里，我们测量了景观异质性的两个方面——木本植被斑块的数量和栖息地多样性——并用先前发表的在同一地点进行的鸟类点计数数据来补充这些测量。木本植被斑块数量在军区高于农田，且与保护鸟类物种丰富度呈正相关。两地生境多样性无显著差异。然而，它显示出与鸟类物种总丰富度呈驼峰形关系。研究结果表明，由于林地-草地嵌合的颗粒更细，军事开放地区的保护鸟类数量高于农田。为了支持更多的鸟类物种，必须在开放景观中保持高度的栖息地多样性，但在一定程度上不受面积限制而损害鸟类种群。

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.