Can Yandex statistics and google trends be used to detect people's interests in berries in the Russian Far East?

Nagai, Shin; Kotani, Ayumi; Maruya, Yasuyuki; Gavrilyeva, Tuyara

doi:10.1016/j.polar.2022.100871

Cited by 4 publications

(6 citation statements)

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“…Bog bilberries are common in the Siberian taiga and tundra biotopes. They are known and used as a food source by the indigenous peoples of Siberia, for example, the Yakuts/Sakha ( Borisova et al, 2018 ), Nenets ( Källman, 2002 ), Yupik ( Ainana and Zagrebin, 2014 ), Chukchi, Koryak and Kamchadal ( Bogoraz, 1909 ), as well as the general non-indigenous population of Siberia ( Shin et al, 2022 ). The berry picking has been (and still is) traditionally done by women and children.…”

Section: Ethnopharmacology and Various Mentions By Landmentioning

confidence: 99%

Vaccinium uliginosum L. (bog bilberry) and the search for its alleged toxicity: a review

Vaneková,

Holloway,

Rollinger

2024

Front. Toxicol.

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Bog bilberry (Vaccinium uliginosum L.) is a wild-growing berry native to all circumboreal regions. There is however a significant discrepancy in the uses of bog bilberry fruits around the world. There exists a strong prejudice against the use of these berries in many European countries as well as a few incidences of poisoning reported between 1906 and 1944. In Asia and North America, this fear is completely absent from the local knowledge and the bog bilberry is valued as an excellent food and medicinal plant. There has been a lack of research on the topic in the last 50 years and thus the presumed toxicity remains unproven. This review aims to gather the conflicting information from all regions where bog bilberry grows and present them in a critical way to elucidate the possible explanations for the discrepancies. There are several possible explanations for the alleged toxicity of the bog bilberry, including a fungal infection of the fruits, individual intolerance or accidental poisoning by a different plant species; the local names meaning “drunk, inebriating, vomit-inducing berry” may be related to the alcoholic drinks made from them. This review highlights the gap in knowledge and serves as a theoretical framework for future research.

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Section: Ethnopharmacology and Various Mentions By Landmentioning

confidence: 99%

Vaccinium uliginosum L. (bog bilberry) and the search for its alleged toxicity: a review

Vaneková,

Holloway,

Rollinger

2024

Front. Toxicol.

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“…In search engine analyses, researchers can examine temporal changes in people's interests for a search term and time period by using the "relative search volumes" (RSV) in GT, which are relative values (from 0 to 100) for a given time period, and the "impressions" scores for Yandex, which are absolute values (Stephens-Davidowitz and Varian, 2015;Shin et al, 2022a). Examples of this kind of study include topics such as temporal changes in cherry flowering phenology (Shin et al, 2022d), utilization of berries (Kotani et al, 2021;Shin et al, 2022a), demand for mushrooms (Diaz-Balteiro et al, 2023), appearance of insects (Takada, 2012), the COVID-19 pandemic (Mavragani and Gkillas, 2020;Amusa et al, 2022), and pollens that trigger seasonal allergies (Hall et al, 2020;Iinuma et al, 2020). GT provides search by country and region, whereas Yandex provides impressions scores for a variety of administrative units (continent, country, region, city, and Russian administrative wards).…”

Section: Social Sensingmentioning

confidence: 99%

“…In this case, GT provides search results for queries in all languages, including a given language. For more information about GT and Yandex analyses, please see Kotani et al (2021) and Shin et al (2022a).…”

Section: Social Sensingmentioning

confidence: 99%

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Perspective and review: how to develop our understanding of temporal changes in the relationship between people and the landscape under societal and climate change in Northeast Asia?

Shin,

Saitoh,

Kotani

et al. 2024

Front. Environ. Sci.

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The relationship between people and the landscape consists of multi-layer components such as the atmosphere, water, living things, nutrients, livelihood, society, and information. To clarify temporal changes in this relationship, previous studies have used conventional approaches based on field work and satellite observation. However, interpretations based on these conventional two approaches are subject to temporal, spatial, representative, and interpretability gaps. In this perspective and review paper, we propose three approaches to bridge these gaps: (1) text mining of historical documents and data (mining for handwritten or printed old documents, books, diaries, field notes, and statistics), (2) video mining (mining for descriptions, interviews, narrations, and background of photos/video), and (3) social sensing (observing real-world events by using digital communication tools such as social networking services, YouTube, and Google Trends). We discuss the utility, limitation, and perspective of each of these proposed approaches by presenting case examples of their application from Northeast Asia. We found that (1) the text mining approach can be useful to remove the temporal, representative, and interpretability gaps but requires immense amounts of time and labor; (2) the video mining approach can be useful to remove the temporal, representative, and interpretability gaps, but uncertainties remain and there are usage limitations with video materials; and (3) the social sensing approach can be useful to reduce the spatial, representative, and interpretability gaps, but it requires careful consideration in terms of data quality and ethical issues. To deepen our understanding of the relationship between people and the landscape during periods of social and climate change on a scale of seasons to centuries from the viewpoint of personal attributes and traits, we conclude that an integrated analysis that combines the conventional approaches such as field work and satellite observation and the proposed approaches should be further developed. Through the development of our proposed integrated analytical approaches, we expect to establish a new transdisciplinary study that integrates anthropology, sociology, informatics, history, and natural sciences.

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“…For instance, the analysis of Twitter posts was useful for evaluating the spatiotemporal variation of the timing of leaf coloring in Japan (Shin et al, 2021b). Kotani et al (2021) and Shin et al (2022a) analyzed the time-series of Google Trends and/or Yandex statistics (a major search engine in Russia) 15 to assess the spatiotemporal characteristics of people's interest in the use of berries in Arctic and the Russian Far East regions, 10.3389/ffgc.2023.1106723 which the authors used as proxy data of ripening phenology. Likewise, people's interests in oil extracted from illipe nuts (Borneo tallow nut), which are seeds of Dipterocarpaceae species (Blicher-Mathiesen, 1994), may be useful as ground-truth information for ripening phenology in Sarawak, Malaysia Borneo.…”

Section: Further Collection Of Ground-truth Information From Multiple...mentioning

confidence: 99%

Perspective: Improving the accuracy of plant phenology observations and land-cover and land-use detection by optical satellite remote-sensing in the Asian tropics

Nagai

Katsumata

Miura

et al. 2023

Front. For. Glob. Change

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Recent advances in satellite-borne optical sensors led to important developments in the monitoring of tropical ecosystems in Asia, which have been strongly affected by recent anthropogenic activities and climate change. Based on our feasibility analyses conducted in Indonesia in Sumatra and Sarawak, Malaysia in Borneo, we discuss the current situation, problems, recent improvements, and future tasks regarding plant phenology observations and land-cover and land-use detection. We found that the Multispectral Instrument (MSI) on board the Sentinel-2A/2B satellites with a 10-m spatial resolution and 5-day observational intervals could be used to monitor phenology among tree species. For the Advanced Himawari Imager (AHI) on board the Himawari-8 geostationary satellite with a 1,000-m spatial resolution and 10-min observational intervals, we found that the time-series in vegetation indices without gaps due to cloud contamination may be used to accurately detect the timing and patterns of phenology among tree species, although the spatial resolution of the sensor requires further improvement. We also found and validated that text and pictures with geolocation information published on the Internet, and historical field notes could be used for ground-truthing land cover and land use in the past and present time. The future development of both high frequency (≤ 10 min) and high spatial resolution (≤ 10 m) optical sensors aboard satellites is expected to dramatically improve our understanding of ecosystems in the tropical Asia.

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Can Yandex statistics and google trends be used to detect people's interests in berries in the Russian Far East?

Cited by 4 publications

References 30 publications

Vaccinium uliginosum L. (bog bilberry) and the search for its alleged toxicity: a review

Vaccinium uliginosum L. (bog bilberry) and the search for its alleged toxicity: a review

Perspective and review: how to develop our understanding of temporal changes in the relationship between people and the landscape under societal and climate change in Northeast Asia?

Perspective: Improving the accuracy of plant phenology observations and land-cover and land-use detection by optical satellite remote-sensing in the Asian tropics

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