极度濒危的黑翼号手Psophia obscura在其最后据点之一的现状

IF 1.5 4区 环境科学与生态学 Q3 BIODIVERSITY CONSERVATION
E. A. Carvalho, E. N. Mendonça, A. M. Lopes, T. Haugaasen
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引用次数: 1

摘要

摘要“极度濒危”的黑翼号手Psophia obscura是亚马逊地区最东部的贝伦地方病中心的特有物种,其数量和范围都在下降。在这里,我们报道了一项为期五年(2016–2020)的系统相机陷阱(n=61)研究,该研究对古鲁皮生物保护区(其最重要的保护区之一)的物种进行了研究。我们使用多季入住模型来确定影响入住率的因素,并评估保护区的入住趋势。占用率与海拔和现场树木密度呈负相关,与伐木后的恢复时间呈正相关。在整个研究期间,平均年入住率保持稳定(在0.57至0.67之间),这种稳定在很大程度上是由较高的年间生存率推动的。研究结果证实,黑翼犀是一种对森林干扰高度敏感的内陆森林专家,这突出了古鲁皮生物保护区作为保护该物种核心地点的重要性。然而,该物种寿命较长,因此需要持续监测,以进一步阐明种群趋势。我们还建议评估该物种在其他森林遗迹中的状况,其中大多数仍然没有受到保护。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Current status of the Critically Endangered Black-winged Trumpeter Psophia obscura in one of its last strongholds
Summary The ‘Critically Endangered’ Black-winged Trumpeter Psophia obscura is endemic to the Belém Centre of Endemism in extreme eastern Amazonia and has a declining population and range. Here we report on a five-year (2016–2020) systematic camera-trap (n = 61) study of the species in Gurupi Biological Reserve, one of its most important conservation areas. We used a multi-season occupancy model to identify factors affecting occupancy rates and to assess occupancy trends in the reserve. Occupancy was negatively related to elevation and site-level tree density, and was positively related to post-logging recovery times. Average annual occupancy rates remained stable throughout the study period (ranging between 0.57 and 0.67) and this stability was largely driven by high between-year survival rates. Results confirm that the Black-winged Trumpeter is an interior-forest specialist that is highly sensitive to forest disturbance, which underlines the importance of the Gurupi Biological Reserve as a core site for the conservation of the species. However, the species is long-lived, so continuous monitoring is needed to further clarify population trends. We also recommended that the status of the species in other forest remnants, most of which remain unprotected, is assessed.
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来源期刊
CiteScore
3.40
自引率
6.20%
发文量
50
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.
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