Effectiveness of Key Biodiversity Areas in representing global avian diversity.

IF 5.2 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION
Tom P Lansley, Olivia Crowe, Stuart H M Butchart, David P Edwards, Gavin H Thomas
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Abstract

Key Biodiversity Areas (KBAs) are the largest and most complete network of significant sites for the global persistence of biodiversity. Although important sites for birds worldwide have been relatively well assessed, a key question is how effectively the global KBA network represents avian diversity. We identified bird species, orders, habitats, and geographic regions that are underrepresented by KBAs. Area of Habitat (AOH) maps for 10,517 terrestrial bird species were cropped and masked by the extent of each KBA. Almost all species had at least one part of their seasonal distribution in one or more KBAs. Twenty-nine species had no habitat overlap with KBAs, and 1900 species had <8% of their AOH overlapping KBAs. Species with KBAs identified for them (5219 trigger species) had on average 2.6% greater representation of their AOH in KBAs than species that did not. The extent of species' AOH represented by KBAs varied with region, habitat, and taxonomic group. Northern North America had the most underrepresented terrestrial bird species (up to 178 underrepresented species per 100 km2). Terrestrial bird species of tropical forests were 12.8% better represented in KBAs than expected by chance, whereas boreal and temperate forest species were less well represented than expected by chance (74.4% and 25.1%, respectively). Among avian orders, Anseriformes and Charadriiformes were underrepresented in KBAs (29.0% and 17.9%, respectively), whereas Trogoniformes and Psittaciformes were better represented (16.2% and 6.9%, respectively) than expected by chance. Bird species for potential KBA identification include marsh antwren (Formicivora paludicola) and Tabar pitta (Erythropitta splendida). These are mainly due to recent changes in species' taxonomy or their International Union for Conservation of Nature Red List category. Identifying poorly represented species and where they occur highlights shortfalls where expansion of the network could bring conservation benefits.

关键生物多样性区在代表全球鸟类多样性方面的有效性。
关键生物多样性区(KBAs)是全球生物多样性持续性的最大和最完整的重要站点网络。尽管全球鸟类的重要栖息地已经得到了较好的评估,但一个关键问题是全球鸟类栖息地网络如何有效地代表鸟类多样性。我们确定了KBAs未充分代表的鸟类种类、目、栖息地和地理区域。10,517种陆鸟的栖息地面积(AOH)图被裁剪并被每个KBA的范围所掩盖。几乎所有物种在一个或多个KBAs中至少有一部分季节分布。其中,29种与栖息地不重叠,1900种与栖息地重叠。热带森林陆鸟在栖息地重叠中的比例为12.8%,而北方森林和温带森林陆鸟在栖息地重叠中的比例分别为74.4%和25.1%。在鸟类目中,雁形目和镜形目在KBAs中的代表性不足(分别为29.0%和17.9%),而弓形目和鹦鹉形目的代表性较好(分别为16.2%和6.9%)。可能用于KBA鉴定的鸟类包括沼泽蚁鸟(Formicivora paludicola)和塔巴皮塔(Tabar pitta脾红皮塔)。这主要是由于最近物种分类或其国际自然保护联盟红色名录类别的变化。确定代表性差的物种及其发生地点凸显了网络扩张可能带来保护效益的不足之处。
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
Conservation Biology
Conservation Biology 环境科学-环境科学
CiteScore
12.70
自引率
3.20%
发文量
175
审稿时长
2 months
期刊介绍: Conservation Biology welcomes submissions that address the science and practice of conserving Earth's biological diversity. We encourage submissions that emphasize issues germane to any of Earth''s ecosystems or geographic regions and that apply diverse approaches to analyses and problem solving. Nevertheless, manuscripts with relevance to conservation that transcend the particular ecosystem, species, or situation described will be prioritized for publication.
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