Higher rat abundance in greener urban areas

IF 2.5 3区 环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Urban Ecosystems Pub Date : 2024-03-01 DOI:10.1007/s11252-024-01513-5
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Abstract

Urban greening has become an increasingly popular strategy to improve urban life and human health. However, there are indications that the presence and extent of urban greenness may increase the abundance of wild rats. Therefore, we investigated which environmental and socio-economic factors are associated with rat abundance, with a focus on factors related to urban greenness. We systematically trapped rats (222 Rattus norvegicus and 5 Rattus rattus) in parks and residential areas in three cities in the Netherlands. We modelled the relative abundance of rats against various environmental and socio-economic variables. In addition, we compared municipality rat complaint data with our trapping data and analysed trap success over time. We observed positive relationships between the relative abundance of rats and both greenness (NDVI) and different proxies for food resources (restaurants and petting zoos). In addition, there were more municipality rat complaints in residential areas compared to parks, while there was a higher relative abundance of rats in parks. Our findings corroborate that greenness is associated with a higher abundance of wild rats, and that municipality rat complaints may underestimate the abundance of rats in greener urban areas. This study provides new insights on factors affecting relative rat abundance in cities and can guide policy makers and city planners how to minimize rat nuisance in the greener parts of cities. By taking these potential effects of urban greenness on rat abundance into account, measures can be taken that on the one hand maintain the beneficial effects of urban greening, but at the same time reduce the carrying capacity for rats.

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绿化较好的城市地区老鼠数量较多
摘要 城市绿化已成为一种日益流行的改善城市生活和人类健康的策略。然而,有迹象表明,城市绿化的存在和范围可能会增加野生老鼠的数量。因此,我们调查了哪些环境和社会经济因素与老鼠的数量有关,重点是与城市绿化有关的因素。我们在荷兰三个城市的公园和居民区系统地诱捕了老鼠(222只北鼠和5只南鼠)。我们将老鼠的相对数量与各种环境和社会经济变量进行了模拟。此外,我们还将市政府的老鼠投诉数据与我们的诱捕数据进行了比较,并分析了诱捕成功率随时间的变化情况。我们观察到,老鼠的相对数量与绿度(NDVI)和食物资源的不同替代物(餐馆和宠物动物园)之间存在正相关关系。此外,与公园相比,居民区的老鼠投诉更多,而公园中老鼠的相对数量更高。我们的研究结果证实,绿化程度与野生老鼠数量较多有关,市政老鼠投诉可能低估了绿化程度较高的城市地区的老鼠数量。这项研究为影响城市中老鼠相对数量的因素提供了新的见解,并可指导政策制定者和城市规划者如何最大限度地减少城市绿地中的老鼠滋扰。考虑到城市绿化对老鼠数量的潜在影响,可以采取措施,一方面保持城市绿化的有益效果,同时降低老鼠的承载能力。
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来源期刊
Urban Ecosystems
Urban Ecosystems BIODIVERSITY CONSERVATION-ECOLOGY
CiteScore
5.70
自引率
6.90%
发文量
113
期刊介绍: Urban Ecosystems is an international journal devoted to scientific investigations of urban environments and the relationships between socioeconomic and ecological structures and processes in urban environments. The scope of the journal is broad, including interactions between urban ecosystems and associated suburban and rural environments. Contributions may span a range of specific subject areas as they may apply to urban environments: biodiversity, biogeochemistry, conservation biology, wildlife and fisheries management, ecosystem ecology, ecosystem services, environmental chemistry, hydrology, landscape architecture, meteorology and climate, policy, population biology, social and human ecology, soil science, and urban planning.
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