Spiders (Arachnida: Araneae) of a wildlife and cattle savanna ranch in South-Western Zimbabwe

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

Koedoe Pub Date : 2023-12-20 DOI:10.4102/koedoe.v65i1.1756

Sicelo Sebata, Charles R. Haddad, Moira J. FitzPatrick, S. Foord

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引用次数: 0

Abstract

In order to contribute to spider diversity distribution records within Zimbabwe, spiders were sampled at a mixed wildlife and cattle ranch using pitfall traps and sweep-netting. Sampling was conducted from June 2017 to April 2018. A total of 2328 spiders representing 25 families, 94 genera, and 166 species were recorded. The most species-rich families were Salticidae (33 spp.), followed by the Gnaphosidae (28 spp.) and Lycosidae (20 spp.), while eight families were represented by a single species. Pitfall traps accounted for 1857 individuals overall, with the ground-dwelling fauna dominated by Stenaelurillus guttiger (37.86% of the total abundance). Sweep-nets accounted for 471 individuals overall, with the grass-dwelling fauna dominated by Thyene thyenioides (15.29% of the total abundance). The most abundant functional group was the free-living ground-dwellers (n = 1809, 77.71%), followed by free-living plant-dwellers (n = 266, 11.43%) and orb-web builders (n = 186, 7.98%). The current study contributes to the knowledge of a megadiverse group of predatory arthropods in the region.Conservation implications: Sampling and monitoring of rangelands is essential, as the former aids in the identification of new species not previously recorded, as well as increasing knowledge on the distribution of spider species, which if not adequately conserved could face significant threats to their survival even before their documentation.

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津巴布韦西南部野生动物和牛群稀树草原牧场的蜘蛛（蛛形纲：Araneae

为了对津巴布韦境内的蜘蛛多样性分布记录做出贡献，我们在一个野生动物和养牛混合牧场使用坑式陷阱和扫网对蜘蛛进行了采样。采样工作于 2017 年 6 月至 2018 年 4 月进行。共记录了 2328 种蜘蛛，代表 25 个科、94 个属和 166 个种。物种最丰富的科是盐蛛科（33 种），其次是蛛蛛科（28 种）和鳞蛛科（20 种），还有 8 个科只有一个物种。坑式陷阱捕获的个体总数为 1857 个，地栖动物群中以 Stenaelurillus guttiger 为主（占总丰度的 37.86%）。扫网捕获了 471 个个体，草栖动物以 Thyene thyenioides 为主（占总数量的 15.29%）。数量最多的功能群是自由生活的地面栖息动物（n = 1809，77.71%），其次是自由生活的植物栖息动物（n = 266，11.43%）和球网建造动物（n = 186，7.98%）。本研究有助于了解该地区食肉节肢动物的巨大多样性：对牧场进行采样和监测至关重要，因为前者有助于识别以前没有记录的新物种，还能增加对蜘蛛物种分布的了解，如果保护不力，这些物种甚至在被记录之前就可能面临严重的生存威胁。

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来源期刊

Koedoe BIODIVERSITY CONSERVATION-

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： Koedoe, with the subtitle ''African Protected Area Conservation and Science'', promotes and contributes to the scientific (biological) and environmental (ecological and biodiversity) conservation practices of Africa by defining the key disciplines that will ensure the existence of a wide variety of plant and animal species in their natural environments (biological diversity) in Africa.