植物热点的主体:塞拉多草本灌木植物区系的组成、物种丰富度和保护状况

IF 1 4区 生物学 Q3 PLANT SCIENCES
Aloirta Waldete de Castilho Silva, Vanessa Pontara, Marcelo Leandro Bueno, Pedro Manuel Villa, Bruno Machado Teles Walter, João Augusto Alves Meira-Neto
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引用次数: 0

摘要

塞拉多是一种新热带稀树草原,是热带稀树草原中植物物种最丰富的地方。这些物种大多是草本植物和亚灌木,但木本物种的研究更为广泛。我们建立了一个构成塞拉多草本亚灌木植物区系的物种数据库,以深入了解其保护状况并缩小知识差距。我们的目标是:(1) 收集有关塞拉多地区草本灌木植物区系的信息;(2) 确定构成该植物区系的最常见科、属和物种的重要性;(3) 绘制塞拉多地区物种极为丰富的地区地图;(4) 评估与该植物区系及其物种保护状况相关的保护区状况。我们创建了 "CerrHerb "数据库,其中包含草本灌木物种的信息。我们确定了隶属于 97 科 769 属的 6492 个物种。我们汇编了 4354 个物种的 65,535 个出现点,并绘制了物种丰富度的两个主要热点集群:中部 Cerrado 和埃斯皮尼亚索山脉,以及东马托格罗索州更西边的第三个不太明显的热点集群。物种最丰富的科是菊科(742 种)、诗科(681 种)和豆科(584 种)。在这些物种中,有 2398 种(55%)出现在保护区内,1956 种(45%)不在保护区内。此外,有 2 235 个物种为地方特有物种,目前尚无关于其保护状况的信息。对草本亚灌木植物区系的了解存在很大差距,这可能会导致由于对 Cerrado 保护区管理不善而造成的保护和生态问题。有必要重新评估塞拉多的保护政策,调整保护区的管理,以反映草本灌木植物区系的实际重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The bulk of a plant hotspot: composition, species richness and conservation status of the Cerrado herbaceous–subshrub flora

The bulk of a plant hotspot: composition, species richness and conservation status of the Cerrado herbaceous–subshrub flora

The Cerrado is a Neotropical savanna with the highest plant species richness among tropical savannas. Most of these species are herbs and subshrubs, although woody species have been studied much more extensively. We built a database of species constituting the herbaceous–subshrub flora of the Cerrado to provide an in-depth view of its conservation status and reduce knowledge gaps. Our objectives were to (1) gather information on the herbaceous–subshrub flora of the Cerrado, (2) determine the importance of the most common families, genera and species making up this flora, (3) map areas with great species richness in the Cerrado, and (4) assess the status of protected areas in relation to this flora and the conservation status of its species. We have created the ‘CerrHerb’ database with information about herbaceous–subshrub species. We identified 6,492 species distributed across 769 genera belonging to 97 families. We compiled 65,535 occurrences of 4,354 species and mapped two main hotspot clusters of species richness: the Central Cerrado and the Espinhaço Range, with a third, less pronounced hotspot cluster further west in the Eastern Mato Grosso. The richest families were the Asteraceae (742 species), Poaceae (681 species) and Fabaceae (584 species). Of the species, 2,398 (55%) occur in protected areas, while 1,956 species (45%) do not. Additionally, 2,235 species are endemic, with no information available on their conservation status. There is a significant knowledge gap regarding the herbaceous–subshrub flora, which can lead to conservation and ecological problems caused by poor management of Cerrado reserves. There is a need to reassess conservation policies for the Cerrado and adapt the management of conservation units to reflect the actual importance of the herbaceous–subshrub flora.

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来源期刊
Folia Geobotanica
Folia Geobotanica 生物-植物科学
CiteScore
2.40
自引率
0.00%
发文量
18
审稿时长
>12 weeks
期刊介绍: The journal Folia Geobotanica publishes articles in vegetation science, plant ecology and plant systematics, including the topics of temporal community patterns, population and ecosystem ecology, and invasion and conservation ecology. Within the field of plant systematics, Folia Geobotanica welcomes papers on systematic and evolutionary botany, including phylogenetic reconstructions, phylogeographic and biogeographic inferences, studies of microevolutionary processes, taxonomic studies, and broader taxonomic revisions.
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