Assessment of long-term trends in a threatened grassland bird community using daily bird lists

IF 1.5 4区环境科学与生态学 Q3 BIODIVERSITY CONSERVATION

Bird Conservation International Pub Date : 2024-01-24 DOI:10.1017/s0959270923000357

Akshay Bharadwaj, Sarang Mhamane, Priti Bangal, Tarun Menon, Kavita Isvaran, Suhel Quader

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引用次数: 0

Abstract

Summary Open natural ecosystems (ONEs), such as tropical grasslands, are among the most threatened habitats on Earth today. The long-term monitoring of ONEs is an important research domain that is essential for understanding anthropogenic impacts and facilitating conservation action. Using a simple day-listing method over a 13-year period, we studied species trends in a central Indian grassland–agriculture mosaic experiencing several land-use changes. Our results indicate that some grassland species (such as the Great Indian Bustard Ardeotis nigriceps) showed steep declines during the study period, while other generalist species (such as the Indian Peafowl Pavo cristatus) showed an increasing trend. Daily listing also revealed distinct seasonal patterns, and we discuss the Great Indian Bustard and Western Marsh Harrier Circus aeruginosus as examples. Our study highlights the utility of consistent checklist surveys to monitor population trends of bird communities within a changing landscape.

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利用每日鸟类名录评估濒危草原鸟类群落的长期趋势

摘要热带草原等开放的自然生态系统（ONEs）是当今地球上最受威胁的栖息地之一。对开放式自然生态系统的长期监测是一个重要的研究领域，对于了解人为影响和促进保护行动至关重要。在 13 年的时间里，我们使用一种简单的日列表方法，研究了印度中部草地-农业镶嵌区的物种趋势，该镶嵌区经历了多次土地利用变化。研究结果表明，一些草原物种（如印度大鸨 Ardeotis nigriceps）在研究期间急剧减少，而其他综合物种（如印度杓鹬 Pavo cristatus）则呈上升趋势。每日列表还揭示了明显的季节性模式，我们以印度大鸨和西部沼泽鹞（Circus aeruginosus）为例进行了讨论。我们的研究强调了在不断变化的景观中，持续的清单调查对监测鸟类群落种群趋势的实用性。

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

Bird Conservation International 生物-鸟类学

CiteScore

3.40

自引率

6.20%

发文量

审稿时长

>12 weeks

期刊介绍： Bird Conservation International is a quarterly peer-reviewed journal that seeks to promote worldwide research and action for the conservation of birds and the habitats upon which they depend. The official journal of BirdLife International, it provides stimulating, international and up-to-date coverage of a broad range of conservation topics, using birds to illuminate wider issues of biodiversity, conservation and sustainable resource use. It publishes original papers and reviews, including targeted articles and recommendations by leading experts.