Nature-oriented park use of satoyama ecosystems can enhance biodiversity conservation in urbanized landscapes

Iwachido, Yuki; Uchida, Keiji; Ushimaru, Atushi; Yokota, Shigeru; Sasaki, Takehiro

doi:10.1007/s11355-020-00413-y

Cited by 9 publications

(2 citation statements)

References 39 publications

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“…One possible reason for this is that the articles were retrieved only when descriptions of citizen activities were included, presenting a limitation of this review. Articles that reported on detailed studies of the biota of Satoyama landscapes were identified, for example, Iwachido et al ( 2020 ). The ecosystems may be sustained by urban residents, although the articles did not mention who maintained them and how.…”

Section: Discussionmentioning

confidence: 99%

Urban ecological life in a metropolitan area—an insight from Satoyama conservation activities in the Greater Tokyo Area

Shimpo

2021

Landscape Ecol Eng

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Urban residents need to live in an ecologically sustainable way to mitigate and adapt to climate change. To discuss the model of urban ecological life, this paper focused on Satoyama landscapes and reviewed academic articles on the existing cases of Satoyama conservation by urban residents in the Greater Tokyo Area. We analyzed activities performed by participants, benefits to participants, and targeted and achieved ecosystems. Several findings were obtained from the review of published literature. First, the participants were mainly elderly men aged 60 years or older, who were not necessarily local people and who were motivated mostly by the need to conserve nature and improve their health. People with intellectual disabilities also enjoyed the benefits of Satoyama woodland management. Second, participants tended to recognize benefits in terms of health promotion, social cohesion, recreation, and resource utilization, rather than landscape and biodiversity conservation. Third, there were different directions of Satoyama conservation from the perspectives of nature and humans. The broader ecosystem beyond each site was not necessarily considered in Satoyama conservation. These findings show the potential of, and the necessity for, attracting other urban residents by including various activities that consist of not only vegetation conservation but also communal events based on different preferences. There is also a need for balancing environmental and socio-economic perspectives, and the targeted ecosystem should be further explored in collaboration with experts in ecology and landscape planning to make urban ecological life feasible.

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Section: Discussionmentioning

confidence: 99%

Urban ecological life in a metropolitan area—an insight from Satoyama conservation activities in the Greater Tokyo Area

Shimpo

2021

Landscape Ecol Eng

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“…Because adequate sample sizes for the two commodities were only achieved at pre-winter and winter sampling time points, it was not possible to model season as a fixed effect. Instead, season was included as a random effect to account for non-independence of observations within seasons, as described previously ( Iwachido et al, 2020 ). Household was also included as a random effect.…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal assessment of post-harvest mycotoxin contamination in rural North Indian food systems

et al. 2021

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The spatiotemporal trends in aflatoxin B1 (AFB1), fumonisin B1 (FB1), and deoxynivalenol (DON) accumulation were analyzed in a range of food commodities (maize, groundnut, pearl millet, rice, and wheat) in village settings in Unnao, Uttar Pradesh, India. Samples (n = 1549) were collected across six communities and six time points spanning a calendar year and were analyzed for mycotoxins using enzyme-linked immunosorbent assays. AFB1 and FB1 were common across surveyed villages, with moderate to high detection rates (45–75%) observed across commodities. AFB1 levels in maize and groundnuts and FB1 levels in maize and pearl millet frequently exceeded regulatory threshold levels of 15 μg/kg (AFB1) and 2 μg/g (FB1). DON was analyzed in wheat, with 3% of samples yielding detectable levels and none exceeding 1 μg/g. In rice, AFB1 levels were highest in the bran and husk and lower in the kernel. Commodity type significantly influenced AFB1 detection status, while commodity type, season, and visual quality influenced samples’ legal status. Storage characteristics and household socioeconomic status indicators did not have significant effects on contamination. No significant effects of any variables on FB1 detection or legal status were observed. Data on mycotoxin contamination, combined with data on local dietary intake, were used to estimate spatiotemporal mycotoxin exposure profiles. Estimated seasonal per capita exposure levels for AFB1 (5.4–39.3 ng/kg body weight/day) and FB1 (~0–2.4 μg/kg body weight/day) exceeded provisional maximum tolerable daily intake levels (1 ng/kg body weight/day for AFB1 and 2 μg/kg body weight/day for FB1) in some seasons and locations. This study demonstrates substantial dietary mycotoxin exposure risk in Unnao food systems and serves as an evidentiary foundation for participatory food safety intervention in the region.

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Urbanization alters the relative importance of local and landscape factors affecting plant communities in the Tokyo megacity

Iwachido,

Uchida,

Sasaki

2024

Ecology and Evolution

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Plant communities are impacted by local factors (related to environmental filtering) and landscape factors (related to dispersal limitation). While many studies have shown that the relative importance of these factors in understanding plant community dynamics due to urbanization, little is known about how they are altered by urbanization—a significant threat to biodiversity. This study evaluates the relative importance of local environmental (local factors), landscape, and spatial (landscape factors) variables that influence plant communities in 34 urban green spaces comprising two different habitats (forests and grasslands) along the urban–rural gradients in the Tokyo megacity, Japan. To continuously assess the relative importance of each factor along the urban–rural gradients, we extracted 1000 landscapes within a certain range that contained several sites. Subsequently, the relative importance of each factor and urbanization rate (proportion of artificial built‐up area) were estimated for each landscape. Our study found that the relative importance of both local and landscape factors decreased, while that of local factor for native species in forest habitats and that of landscape factors for native species in grassland habitats increased. Collectively, these findings suggest that city size and habitat characteristics must be considered when predicting changes in plant communities caused by urbanization.

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Nature-oriented park use of satoyama ecosystems can enhance biodiversity conservation in urbanized landscapes

Cited by 9 publications

References 39 publications

Urban ecological life in a metropolitan area—an insight from Satoyama conservation activities in the Greater Tokyo Area

Urban ecological life in a metropolitan area—an insight from Satoyama conservation activities in the Greater Tokyo Area

Spatiotemporal assessment of post-harvest mycotoxin contamination in rural North Indian food systems

Urbanization alters the relative importance of local and landscape factors affecting plant communities in the Tokyo megacity

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