Feitosa Matheus Leonydas Borba, Barbosa-da-Silva Hugo Rodrigo, Salomão Renato Portela, Desouza Adriano Medeiros, de Moura Geraldo Jorge Barbosa, Lira André Felipe de Araujo
Centro de Ciências Agrárias Universidade Federal da Paraíba Areia Paraíba Brazil.
Centro de Biociências Universidade Federal de Pernambuco Recife Pernambuco Brazil.
Ecol Evol. 2024 Feb 16;14(2):e11026. doi: 10.1002/ece3.11026. eCollection 2024 Feb.
Urban landscapes restrain the distribution of forest-dwelling species, which may be related to challenging conditions that impair body condition. The dynamics in urban areas lead to the simplification of communities that inhabit forest patches in cities with the turnover of sensitive species for opportunistic ones. In this study, we investigated the effect of urbanization on the body condition and diversity of scorpions at the landscape scale. Sampling was carried out in 10 forest patches in an urban matrix in Brazil, originally covered by a tropical rainforest. The surroundings of the landscape of each forest patch were characterized through the amount of forest, agriculture, and urban land cover. Individual body length, dry, lipid, and muscular masses were used as proxies of body condition. In total, 147 scorpions were collected, belonging to the species , , , and . Forest cover explained 28% of species variation. There was a positive relationship between forest cover and and abundances, while was negatively affected by forest cover. Species richness and total scorpion abundance were not influenced by landscape metrics. In terms of body condition, only females of were affected by landscape variables, with individuals showing higher body mass with an increase in forest cover. Our results suggest that urban forests can support scorpion assemblages. However, there is a turnover in specialist forest species for opportunistic species. Forest cover is a crucial factor in maintaining healthy scorpion populations in urban areas.
城市景观限制了栖息于森林的物种分布，这可能与损害身体状况的挑战性条件有关。城市地区的动态变化导致城市森林斑块中栖息的群落简化，敏感物种被机会主义物种所取代。在本研究中，我们在景观尺度上调查了城市化对蝎子身体状况和多样性的影响。采样是在巴西一个城市基质中的10个森林斑块中进行的，这些森林斑块原本被热带雨林覆盖。每个森林斑块景观的周边环境通过森林、农业和城市土地覆盖量来表征。个体体长、干重、脂质和肌肉质量被用作身体状况的指标。总共收集了147只蝎子，分属于 、 、 和 物种。森林覆盖率解释了28%的物种变异。森林覆盖率与 和 的丰度呈正相关，而 受到森林覆盖率的负面影响。物种丰富度和蝎子总丰度不受景观指标的影响。在身体状况方面，只有 的雌性受到景观变量的影响，随着森林覆盖率的增加，个体表现出更高的体重。我们的结果表明，城市森林可以支持蝎子群落。然而，专业森林物种被机会主义物种所取代。森林覆盖率是维持城市地区健康蝎子种群的关键因素。
