Does novel food differ in cultural contexts? A comparative analysis of Japanese and Singaporean cultural acceptance through text analysis of mass media.

Novel foods include foods which are expected to be major sources of protein, such as cultured meat and insects. They can reduce environmental impacts due to production. However, producing such novel foods involves ethical considerations including social acceptance. The discourse related to novel foods is expanding; hence, this study analyzed them through news articles, comparing Japan and Singapore. The former uses spearheading technology to produce cultured meat, and the latter is in the early phase of cultured meat production while still using insects as a traditional source of protein for the diet. This study identified the characteristics of the discourse of novel foods using text analysis methods comparing Japan and Singapore. Specifically, contrasting characteristics were identified based on different sets of cultural and religious norms and backgrounds. Japan has a tradition of entomophagy, and a startup private company was highlighted in mass media. In Singapore, although the country is one of the leading countries producing novel foods, entomophagy itself is not popular; this is because major religions in Singapore do not recommend or prohibit eating insects. For the government policy, the specific standards of entomophagy and cultured meat are still in development in Japan and other majority of countries. We propose an integrated analysis of standards for novel foods, and social acceptance is needed to provide insights into the development of novel foods.

A Divergent Clade KAI2 Protein in the Root Parasitic Plant Orobanche minor Is a Highly Sensitive Strigolactone Receptor and Is Involved in the Perception of Sesquiterpene Lactones.

Strigolactones (SLs) were initially discovered as germination inducers for root parasitic plants. In 2015, three groups independently reported the characterization of the SL receptor in the root parasitic plant Striga hermonthica, which causes significant damage to crop production, particularly in sub-Saharan Africa. The characterized receptors belong to HYPOSENSITIVE TO LIGHT/KARRIKIN INSENSITIVE2 (HTL/KAI2), which is a member of the α/ß-hydrolase protein superfamily. In non-parasitic plants, HTL/KAI2 perceives the smoke-derived germination inducer karrikin and a yet-unidentified endogenous ligand. However, root parasitic plants evolved a specific clade of HTL/KAI2 that has diverged from the KAI2 clade of non-parasitic plants. The S. hermonthica SL receptors are included in this specific clade, which is called KAI2 divergent (KAI2d). Orobanche minor is an obligate root holoparasitic plant that grows completely dependent on the host for water and nutrients because of a lack of photosynthetic ability. Previous phylogenetic analysis of KAI2 proteins in O. minor has demonstrated the presence of at least five KAI2d clade genes. Here, we report that KAI2d3 and KAI2d4 in O. minor have the ability to act as the SL receptors. They directly interact with SLs in vitro, and when expressed in Arabidopsis, they rescue thermo-inhibited germination in response to the synthetic SL analog GR24. In particular, KAI2d3 showed high sensitivity to GR24 when expressed in Arabidopsis, suggesting that this receptor enables highly sensitive SL recognition in O. minor. Furthermore, we provide evidence that these KAI2d receptors are involved in the perception of sesquiterpene lactones, non-strigolactone-type germination inducers.

Potential of seagrass habitat restorations as nature-based solutions: Practical and scientific implications in Indonesia.

Seagrasses offer diverse ecosystem services, yet, they are among the most threatened ecosystems. When degraded or destroyed, their services are lost or reduced in the process, affecting, for instance, local communities directly dependent on their livelihood provision. The Intergovernmental Panel on Climate Change (IPCC) reported that climate change is projected to worsen over time; thus, there is an urgent need for mitigation strategies in practice and also in the longer term. This work aims to provide an alternative perspective of seagrass restoration as a nature based solution (NbS) on a global scale, yet, giving an emphasis on tropical regions such as Indonesia. We focused on seagrass restorations which are not yet well established in comparison with other restoration programs (e.g., mangroves) despite their critical roles. We present in this work how restoring seagrass meadows fits the global standard of NbS published by the International Union for Conservation of Nature (IUCN). The results of this study can serve as a basis for promoting seagrass restorations as NbS against climate change particularly in countries with a wide extent of seagrass coverage.

Examining who benefited from green infrastructure during the coronavirus pandemic in 2020: Considering the issues of access to green areas from socioeconomic and environmental perspectives.

Access to green areas was one of the most contested issues during Japan's first coronavirus emergency period in 2020. The access was examined using a large-scale online questionnaire survey. An integrated analysis of socioeconomic attributes and environmental factors was conducted, and a typology of respondents, in terms of being beneficiaries of green infrastructure, was provided. Based on empirical datasets, we identified: (1) a relatively strong influence of the pandemic on the access to green areas for young females, both positively and negatively, (2) difficulties of green area access for unmarried low-income respondents in terms of aspects such as travel time, and (3) the influence of neighboring environments on green area access; for example, if there were agricultural lands near the respondents' residential areas, they tended to visit those lands instead of other green areas. The identified typology can serve as a basis for policy targets or components within policy, to enhance the management of green infrastructure as "open" and public areas. This analysis method can be applied to different regions globally, and it contributes to policymaking for green area management to enhance social and individual well-being.

Tourism impacts on small island ecosystems: public perceptions from Karimunjawa Island, Indonesia.

In Indonesia, tourism has become a promising major economic sector, particularly because of its contributions toward developing the economy and creating employment opportunities for local communities with rich coastal ecosystems. However, the balance between the environmental, social, and economic realms has come into question, as unsustainable tourism practices continue to be promoted in Indonesia. To address such challenges, it is important to identify tourism impacts and provide sustainable policies and plans. Communities often record tourism impacts through their perceptions and act as important stakeholders in the process of sustainable tourism development. We examined tourism impacts on coastal ecosystems in Karimunjawa from the perspective of local communities. More comprehensively, we investigated their perceptions from three perspectives: socio-cultural, economic, and environmental. The study results revealed that the respondents held positive perceptions about tourism's impact on socio-cultural and economic sectors and negative perceptions about its impact in the environmental domain. A chi-square test and Spearman's correlation analysis indicated that the respondents' educational attainment and tourism involvement influenced their perceptions on these issues. The current study results could be used as a baseline reference for contextualizing sustainable tourism plans regarding small island ecosystems in Indonesia. Supplementary Information: The online version contains supplementary material available at 10.1007/s11852-022-00852-9.

Community perceptions of long-term mangrove cover changes and its drivers from a typhoon-prone province in the Philippines.

Mangrove forests are among the most productive ecosystems with important services such as food and livelihood provisions, recreations, and regulations (e.g., coastal protection) in local scales. At global scale, they are gaining salience for their carbon sequestration capacities, currently conceptualized as "blue carbon." However, their essential benefits are reduced or lost when degraded. There is, therefore, a need to explore long-term mangrove cover change (MCC) and its underpinning drivers to develop sustainable management strategies. MCC has been analyzed extensively, including satellite images and field surveys, with drivers of changes frequently embedded in local contexts. Thus, in this study, MCC and the causal factors are evaluated at the local scale by gathering community perceptions in Eastern Samar, a typhoon-prone province in the Philippines, with a timeframe since the 1970s until the present. Results show that mangrove cover loss was observed following the occurrence of Typhoon Agnes in 1984 and Typhoon Haiyan in 2013 while conversion of mangrove areas to residential spaces was identified as a recurring driver of mangrove depletion from the early 1970s to 1990s. Study participants perceived that natural threats and lack of law enforcement were the leading proximate and underlying drivers of degradation, respectively. Respondents perceived that mangrove cover is increasing mainly due to successive reforestation programs coupled with stricter implementation of local ordinances in the sites. The results indicate the increased role of mangrove forests in disaster risk reduction and climate change mitigation strategies, while the perceptions of drivers change in long terms.

Methods for specifying spatial boundaries of cities in the world: The impacts of delineation methods on city sustainability indices.

The purpose of this paper is to analyze how different definitions and methods for delineating the spatial boundaries of cities have an impact on the values of city sustainability indicators. It is necessary to distinguish the inside of cities from the outside when calculating the values of sustainability indicators that assess the impacts of human activities within cities on areas beyond their boundaries. For this purpose, spatial boundaries of cities should be practically detected on the basis of a relevant definition of a city. Although no definition of a city is commonly shared among academic fields, three practical methods for identifying urban areas are available in remote sensing science. Those practical methods are based on population density, landcover, and night-time lights. These methods are correlated, but non-negligible differences exist in their determination of urban extents and urban population. Furthermore, critical and statistically significant differences in some urban environmental sustainability indicators result from the three different urban detection methods. For example, the average values of CO2 emissions per capita and PM10 concentration in cities with more than 1 million residents are significantly different among the definitions. When analyzing city sustainability indicators and disseminating the implication of the results, the values based on the different definitions should be simultaneously investigated. It is necessary to carefully choose a relevant definition to analyze sustainability indicators for policy making. Otherwise, ineffective and inefficient policies will be developed.