High Cultural Significance Research Articles

Ethnobotanical insights into the traditional food plants of the Baiku Yao community: a study of cultural significance, utilization, and conservation

BackgroundThe Baiku Yao, primarily residing in Guangxi and Guizhou provinces of China, is a distinctive branch of the Yao ethnic group, known for their profound cultural preservation and unique ethnobotanical knowledge. This study investigates the Baiku Yao community’s utilization of traditional food plants, focusing on the relationship between their dietary practices and the local biodiversity within their mountainous living environment. It aims to illuminate the cultural significance and survival strategies embedded in their ethnobotanical knowledge, highlighting the potential for sustainable living and biodiversity conservation.MethodsThrough ethnobotanical surveys, key informant interviews, and quantitative analysis techniques such as the cultural food significance index (CFSI) and relative frequency of citations (RFC), this research systematically documents the diversity and cultural importance of edible plants in the Baiku Yao community. The study assesses how these plants contribute to the community’s diet, traditional medicine, and overall cultural practices.ResultsA total of 195 traditional edible plants were documented, belonging to 142 genera and 68 families, with a significant concentration in certain families such as Asteraceae, Rosaceae, and Fabaceae. The Baiku Yao diet prominently features herbaceous plants, with wild (103 species) and cultivated (89 species) varieties as diverse food sources. They utilize various plant parts, particularly fruits and leaves, for multiple purposes, including nutrition, medicine, and fodder. Their processing techniques, from raw to fermented, showcase a rich culinary tradition and emphasize a holistic use of plants for enhancing diet and health in a concise overview. The RFC and CFSI analyses reveal a deep cultural reliance on a variety of plant species, with a notable emphasis on vegetables, fruits, spices, and medicinal herbs. Specific plants like Zingiber officinale, Zea mays, and Oryza sativa were highlighted for their high cultural significance. The study also uncovers the multifunctional use of these plants, not only as food but also for medicinal purposes, fodder, and other cultural applications, reflecting the Baiku Yao’s profound ecological wisdom and their harmonious coexistence with nature.ConclusionThe findings emphasize the rich ethnobotanical knowledge possessed by the Baiku Yao, underscoring the importance of documenting, safeguarding, and transmitting this invaluable traditional knowledge. This study contributes to a deeper understanding of cultural heritage and biodiversity conservation, advocating for concerted efforts to protect such traditional practices against the threats of modernization and cultural erosion.

Fire severity drives understory community dynamics and the recovery of culturally significant plants

AbstractAnthropogenic influences are altering fire regimes worldwide, resulting in an increase in the size and severity of wildfires. Simultaneously, throughout western North America, there is increasing recognition of the important role of Indigenous fire stewardship in shaping historical fire regimes and fire‐adapted ecosystems. However, there is limited understanding of how ecosystems are affected by or recover from contemporary “megafires,” particularly in terms of understory plant communities that are critical to both biodiversity and Indigenous cultures. To address this gap, our collaborative study, in partnership with Secwépemc First Nations, examined understory community recovery following a large, mixed‐severity wildfire that burned in the dry and mesic conifer forests of British Columbia, Canada, with a focus on plants of high cultural significance to Secwépemc communities. To measure the effect of a continuous gradient of fire severity across forest types, we conducted field assessments of fire severity and sampled understory plants 4 years postfire. We found that native species richness and richness of species of high cultural significance were lowest in areas that burned at high severity, with distinct compositional differences between unburned areas and those that burned at high severity. These findings were consistent across forest types characterized by distinct historical fire regimes. In contrast, richness of exotic species increased with increasing fire severity in the dominant montane interior Douglas‐fir forests, with exotic species closely associated with areas that burned at high severity. Our study indicates that recent megafires may be pushing ecosystems outside their historical range of variability, with negative implications for ecosystem recovery and cultural use across these fire‐affected landscapes. We also found consistently higher plant diversity, and both native and cultural species richness, in subalpine forests. Collectively, our results provide strong evidence of the ecological and cultural significance of low‐ to moderate‐severity fire and subalpine forests, and the longstanding and ongoing role of Indigenous peoples in shaping these landscapes. As wildfires continue to impact ecosystems and human communities, this study offers novel insights into the recovery of important ecological and cultural values, while highlighting the need to support ethical research collaborations with Indigenous communities and Indigenous‐led revitalization of fire and plant stewardship.

Linguistic Signs On Megalithic Stone Meaning In Gomo South Nias District

This research is entitled linguistic signs on meaning of megalithic stones in Orahili Gomo, South Nias. It explains the sign of the linguistic meaning of the signifier and the signified, the denotative meaning and connotative meaning of megalithic stone. It aims to describe the sequence of signifier and signified and describe the denotative and connotative meaning of megalithic stone. Based on these sources, the data were collected using the observation method and photo techniques. The analysis is carried out with semiotics, the sign of linguistic meaning and the order of the signifier method. The data were analyzed by relating it to the concept proposed by Saussure (2011) and Chandler (2002). Saussure theory is to classify signifier and signified. Chandler theory is to classify denotative and connotative meanings. Result the analysis is presented descriptively. After analyzing the data, it was found there are several specifications of the meaning of megalithic stone. This study shows that megalithic stones have high cultural significance and value, especially in Orahili Gomo. Megalithic stones have the form of signifier and signified and the meaning we can see from the shape and size of megalithic stones.

Genome-Wide Association Study of Starch Properties in Local Thai Rice.

Rice (Oryza sativa L.) is the main source of energy for humans and a staple food of high cultural significance for much of the world's population. Rice with highly resistant starch (RS) is beneficial for health and can reduce the risk of disease, especially type II diabetes. The identification of loci affecting starch properties will facilitate breeding of high-quality and health-supportive rice. A genome-wide association study (GWAS) of 230 rice cultivars was used to identify candidate loci affecting starch properties. The apparent amylose content (AAC) among rice cultivars ranged from 7.04 to 33.06%, and the AAC was positively correlated with RS (R2 = 0.94) and negatively correlated with rapidly available glucose (RAG) (R2 = -0.73). Three loci responsible for starch properties were detected on chromosomes 1, 6, and 11. On chromosome 6, the most significant SNP corresponded to LOC_Os06g04200 which encodes granule-bound starch synthase I (GBSSI) or starch synthase. Two novel loci associated with starch traits were LOC_Os01g65810 and LOC_Os11g01580, which encode an unknown protein and a sodium/calcium exchanger, respectively. The markers associated with GBSSI and LOC_Os11g01580 were tested in two independent sets of rice populations to confirm their effect on starch properties. The identification of genes associated with starch traits will further the understanding of the molecular mechanisms affecting starch in rice and may be useful in the selection of rice varieties with improved starch.

Landscape, agrobiodiversity, and local knowledge in the protected area “Quebrada de los Cuervos y Sierras del Yerbal,” Uruguay

IntroductionAgrobiodiversity and local knowledge are fundamental components in the domestication and structuring of rural landscapes. In a context of threats to agroecosystems resulting from changes in production systems and rural–urban migration processes, the conservation and valorization of agrobiodiversity is a pressing challenge. “Quebrada de los Cuervos and Sierras del Yerbal” is a protected landscape in Uruguay where a rural community of approximately 30 families with a long-standing tradition resides.MethodsThe research aimed at identifying current and abandoned (taperas) domestic contexts, and the plant genetic resources found in the area, categorizing their uses and management practices through interviews and participant observation.Results and discussionEthnographic research revealed 185 species (121 exotic, 64 native) with diverse growth habits, 10 categories of uses, and 11 categories for management practices. The differences found between houses and taperas revealed that the abandonment of activities in rural areas is a relevant factor in the loss of agrobiodiversity. Among the 185 species, a notable group of plant genetic resources of high cultural significance is recognized due to their consensus of use, frequency of management practices, and number of uses. These include introduced fruit trees (peach, citrus, and fig) and native fruit trees (guayabo del país, pitanga, and arazá), vegetable landraces, native trees with multiple uses, yerba mate, and medicinal species such as Aristolochia fimbriata. For domestic contexts, a model of spatial distribution of agrobiodiversity is proposed, cultivated spaces where the plant genetic resources are located in home gardens and small plots, managed spaces where the resources are found in the surroundings of houses, and promoted and intervened wild spaces where the species are used from natural grasslands and wild environments. The obtained information reaffirms the need to conserve this biocultural landscape, placing agrobiodiversity and local knowledge as a focal point in the protected area. The management plan must be formulated with active participation from the rural community, aiming for valorization through integration into agroecological production chains, among other possibilities.

Breeding and selection of taro (Colocasia esculenta) for improved disease‐resistance in Hawaiʻi

Societal Impact StatementTaro is a root crop with wide geographic range and high cultural significance to Indigenous peoples of Hawaiʻi and the Pacific. Taro Leaf Blight (TLB) is a worldwide disease of taro, and Hawaiian taro varieties exhibited little resistance to it. To improve TLB‐resistance, conventional breeding was conducted by hand‐pollination. Out of ~3500 taro seedlings, 18 varieties were selected and evaluated under non‐flooded conditions at four locations in Hawaiʻi over 5 years. Four varieties were identified as high yielding and disease‐resistant. Further, to prevent confusion of new taro varieties with traditional Hawaiian taro, we developed DNA fingerprints to differentiate them. Taken together, these results have provided information regarding new plant material and new tools for those interested in conservation and breeding across the Pacific.Summary Breeding and evaluation of taro (Colocasia esculenta (L.) Schott) was conducted in Hawaiʻi to increase resistance to Taro Leaf Blight (TLB), caused by oomycete pathogen Phytophthora colocasiae Racib., while maintaining high yields and desirable eating qualities. When breeding Indigenous crops such as taro, it is important to consider issues of Indigenous, intellectual property rights. In response to concerns by cultural practitioners about potential confusion of new taro genotypes with traditional landraces, we also sought to develop DNA fingerprints using single nucleotide polymorphisms (SNPs) to identify the new genotypes. Conventional breeding of taro was conducted by hand‐pollination of Hawaiian taro landraces with sources of TLB‐resistance from multiple countries. The most promising lines were multiplied and evaluated under upland (i.e., non‐flooded) conditions on four major Hawaiian Islands over 5 years. DNA was extracted from these new genotypes, analyses of SNPs conducted, and results compared to those of traditional Hawaiian landraces. Bayesian yield analysis of these multi‐year and multi‐location trials identified taro genotypes 1016‐003, 1016‐019, 1024‐215, and 1005‐084 as producing twice the fresh weight corm yield as control “Maui Lehua” and exhibiting disease‐resistance across years and environments. DNA fingerprints of new genotypes were able to differentiate them from traditional Hawaiian landraces that make up a portion of their parentage. Conventional breeding of taro in Hawaiʻi and multi‐year, multi‐location field trials have resulted in high yielding, disease‐resistant genotypes that maintain desirable qualities of some traditional Hawaiian landraces. DNA fingerprints of these new genotypes distinguish them from these traditional landraces, helping to preserve heritage germplasm.

Strategies to Promote Sustainable Development: The Gendered Importance of Addressing Diminishing African Locust Bean (Parkia biglobosa) Resources in Northern Ghana’s Agro-Ecological Landscape

As the topic of gender and forests gains international attention through programs related to addressing the Sustainable Development Goals, we focus on a case study of the African Locust Bean (Parkia biglobosa) in the savannah landscape of northern Ghana. Although this tree holds high cultural significance for Dagomba women, it is unfortunately becoming scarcer in our study area near Tamale. We investigate the reasons for this decline in relation to the agricultural, ecological, and cultural landscape and discuss the gendered impacts of these changes. Research in these communities was conducted between 2018 and 2021 as part of a transdisciplinary action research approach to process underutilized species with women’s groups. The research started with a survey that included 27 women’s groups in 13 communities with 524 women participants. Out of a selected number of groups, our research team has worked more intensively with three women’s groups near Nyankpala, which selected for their processing focus the African Locust Bean, locally known as dawadawa. More than 45 group sessions were organized with seven groups in a collaborative learning process in 2019. Additionally, the three groups in Kpachi who chose to process the African Locust Bean sustained facilitation of group activities until the end of 2021. Specifically, on the topic of the decline of this tree, 19 semistructured interviews were conducted in August 2020 with 8 female farmers, 7 male farmers and 4 chiefs in the local governance system. Our results show the cultural significance of the African Locust Bean for women in the Dagomba culture as well as practical uses of all parts of the tree. Specifically, the seeds are used for making a fermented condiment and tea. Although seeds of the African Locust Bean are considered a women’s crop, their access to this tree is mediated by the local chiefs and often male land-users. Most farmers interviewed reported a reduction in trees in their fields. The reasons for the decrease can be summarized in six different categories, (1) aging tree populations, (2) challenge caring for saplings until maturity, (3) agricultural changes with increased mechanization and pesticide use, (4) over-use as a firewood resource, (5) usufruct rights between traditional chiefs, male land-owners, and women who should be granted access to the trees according to Dagomba cultural values, and (6) reduced water availability inhibits seed yield. In conclusion, there is an urgent need for action to protect and restore the African Locust Bean within northern Ghana’s savannah landscape to ensure continued access and benefits of the tree to women in the region.

Development of a triplex droplet digital polymerase chain reaction assay for the detection of three New Zealand native freshwater mussels (Echyridella) in environmental samples

AbstractThe freshwater mussel Echyridella (also known as kākahi) is the only freshwater mussel found in New Zealand's lakes and rivers and is endemic to the country. They play a crucial role in freshwater ecosystems and have high cultural significance. The three putative species of Echyridella are all classified as at risk. Monitoring is required to enhance knowledge on their distribution and to provide management, but conventional approaches (diving, wading, or swimming and visually looking for mussels) are time‐consuming, costly, and require good visibility. The use of environmental DNA (eDNA) in combination with PCR techniques offer advantages over conventional methods. In this study, we developed a triplex droplet digital PCR assay, targeting a region of the mitochondrial cytochrome oxidase subunit 1 gene, that differentiates all three kākahi species. The limits of quantification using gblocks were 0.6 × 10−03–6 × 10−03 fg/µl, yielding 2–8 copies/reaction, and for tissue DNA 10,000–100,000 fg/µl, yielding 9–15 copies/reaction. The method was applied to water samples from 48 lakes, lagoons, or ponds and two samples from streams. A total of 58% of samples from lakes, lagoons, or ponds and all samples from the streams were positive for kākahi. Sediment samples (n = 15) were also tested. Only those collected in close proximity (<1 m) to living kākahi were positive highlighting the patchy distribution of eDNA in sediment. This new assay will assist in determining the current distribution of kākahi at large temporal and spatial scales and has the potential to be used for the assessment of historic distributions as well.

Ruin(ed) policies: why we should aim for protecting ruins regionally

ABSTRACT Ruins are of high cultural significance and their protection is an important policy issue. This article argues that a focus on regional policies might in some instances help to counter ruined policies. In a first step, the article contours an understanding of ruins and distinguishes functions of ruins by the motivation of the constructors and the preservers. Subsequently, the article finds that some current attempts to ‘keeping ruins alive’, efforts to putting the presence in perspective with the past, relate to ruin(ed) temporalities because either the motivation of the constructors of ruins is ignored or the function of ruins for preservers is not reflected on sufficiently. The article concludes that a regional policy focus – in contrast to an international or domestic approach – might do more justice to these spatial differences and therefore might counter ruined temporalities and ruined policies.

Indigenous knowledge interaction network between host plants and edible insects in the Ecuadorian Amazon

Globally, nearly two billion people consume approximately 2,111 species of insects, 92% of which are harvested directly from their natural ecosystems. However, intensifying insect harvesting causes ecological alterations and biodiversity loss. In the Ecuadorian Amazon, the Kichwa people are the primary consumers of insects. Thus, this study characterised the diversity of edible insects, host plants, and cultural significance among two peri-urban Kichwa communities. We used photo-elicitation, free-listing, semi-structured interviews, andin situ walk-in-the-woods to identify relevant edible insects. Then, we used species accumulation curves, the Salience Smith Index (SSI), ecological interaction networks, and extinction models to assess insect-host species interactions and cultural significance. We registered 19 edible insect species from three orders and six families. Furthermore, we reported two new species for the world list of edible insects and one for the Ecuadorian list. Ten insect species were associated with 21 host plant species. The interaction between theRhynchophorus palmarum beetle and theBactris gasipaes palm tree had the highest cultural significance (SSI>0.18,P<0.05). Furthermore, we found that 30% of the insect species and 52% of the host plant species (of which 90% were palms) were essential for conserving the interaction network structure. Finally, the extinction models suggested that host plant species knowledge was intrinsically related to edible insect knowledge conservation. Our findings provide basic ecological and cultural information for developing edible insect breeding projects and safeguarding traditional knowledge.

Can cultural significance in plants be explained by domestication and usage spaces? A study case from a coffee producing community in Huila, Colombia

This study was aimed at delving into the relationship between botanical species with cultural significance and both the managed environments they inhabit (Coffee plantation, Forest, Garden, Orchard, Market) and their origin (Wild, Cultivated), as established by people from vereda Las Delicias, Colombia. We tested the hypothesis that cultivated plants from the coffee plantations would have the highest cultural significance. One hundred and ninety-two plants were recorded by common name, however, upon taxonomic analysis, 238 botanical species were established. The most relevant spaces in terms of diversity were the coffee plantation (91 useful plants) and the garden (81 useful plants). Regarding origin, most of the plants were cultivated (151), with only 50 wild species. Likewise, there is a significantly larger cultural significance of coffee plantantion plants than there is garden plants and forest plants. Furthermore, cultivated plants have a significantly larger cultural significance than do wild plants. In conclusion, there is a diversity of useful plants within coffee plantation systems, which guarantee family livelihoods, diversify income sources, and protect the natural resources of the region. Finally, the importance of coffee (Coffea arabica) comes from its role as a customary heritage for this community, which strengthens agricultural, environmental, and cooperative processes after each generation.

Okra in translation

Abstract This article explores the theme of food translation, based on research conducted in Italy in 2018 with a group of asylum seekers from different West African countries. It concentrates on a community gardening project revolving around the cultivation of okra: a vegetable that is a staple in many African cuisines, but not very popular in Italy, which provided the occasion for the participants to communicate their home foodways. As something that is linked to the most basic human needs, and yet bears high cultural significance, food can be used as a lens to explore the shifting relationship between language and other embodied forms of meaning. Translating food means engaging with a complex interplay of language, sensory experiences, and socio-cultural norms. Drawing from recent semiotically-oriented developments in translation studies as well as applied linguistics, and the semiotics of food, I analyze key participants’ involvement with the project.

An ethnopharmacological survey and comparative analysis of plants from the Sudhnoti District, Azad Jammu and Kashmir, Pakistan

BackgroundThis is the first comprehensive report on the traditional and novel uses of medicinal plants practiced by the indigenous communities of the Sudhnoti district of Azad Jammu and Kashmir (AJK), Pakistan. The area is rich in folklore and indigenous medicinal knowledge due to a unique tribal composition and socioeconomic conditions. This study aimed to document traditional knowledge of native plant use by the local communities, particularly those used for therapeutic purposes.MethodsField surveys were conducted from September 2015 to March 2017. Interviews with 125 local inhabitants of different tribes, age groups, genders, and occupations were conducted using structured and semi-structured questions along with group discussions. Data gathered on plant uses, local names, and modes of application of each plant species were organized in tables. Ethnobotanical indices such as use value (UV) and cultural significance index (CSI) were used to produce quantitative information on the plant use category, frequency, and cultural preference of species. Reports on therapeutic uses of medicinal plants were compared with previous studies.ResultsIn all, 88 plant species from 45 families were reported, out of which 67 (77%) were used in ethnomedical applications. Asteraceae, Rosaceae, Fabaceae, and Lamiaceae were the dominant families. Berberis lycium was the most valued plant species, followed by Zanthoxylum armatum and Taraxacum officinale. Mentha arvensis had the highest cultural significance, followed by Mentha longifolia, Punica granatum, and Zanthoxylum armatum. Leaves were the most preferred plant parts in the preparation of medicine exclusively or mixed with other parts. The most frequently used process of crude preparation of medicinal plants was cooking. Oral intake was the predominant route of administration.ConclusionsOur comparative analysis confirmed that most of the plants documented have uses that match those previously reported for the region and other parts of the world, with the exception of novel medicinal uses for 11 plant species, including Verbascum thapsus for earache, Elaeagnus umbellata for hepatitis, Achillea millefolium for oral care, Dicliptera roxburghiana to prevent sunstroke in cattle, Rumex hastatus for allergy antidote, Pyrus pashia for hepatitis, and Nerium oleander for diabetes.

Environmental, demographic and policy drivers of change in mediterranean hedgerow landscape (Central Spain)

The present paper combines the classification of hedgerows in relation to surface soil moisture with the consideration of drivers of change (environmental, demographic, and policy) affecting the areal extent of hedgerow land cover in central Spain. These landscapes have a high cultural significance and functionality that needs to be preserved and improved. The hedgerow network of a continental Mediterranean mountain was mapped and different levels of surface soil moisture were estimated utilising images of the satellite Sentinel-2. In addition, we analysed the areal extent of hedgerows from 1956 to the present in relation to slope, surface soil moisture and distance from the metropolitan area.In the last 70 years there has been a decrease in the surface area of hedgerows in central Spain. In the study area in particular, this decrease represents 48.26% of the total hedgerow network identified in 1956. 51.62% of abandoned hedgerow areas demonstrate a low degree of surface soil moisture and are usually located on slopes greater than 5%. As a result, driest hedgerows -less fertile, accessible and productive- have lost their functionality in many cases. In addition, urban expansion and the proximity to Madrid Metropolitan Area are processes that have caused the loss of 9.33% of the hedgerows in the study area since 1956.We integrated an overview of European, national and regional policies related to hedgerow functions involving biodiversity, cultural heritage, rural development and spatial planning. This paper contributes to the knowledge of changing Mediterranean hedgerows and the current status of their protection within the different legislations. We conclude there are legislative tools at a European level of interest for the hedgerow landscape, however its identification and management at regional level are scarce.

ПОДІЄВИЙ ТУРИЗМ ЯК СКЛАДНИК РОЗВИТКУ ВНУТРІШНЬОГО ТУРИЗМУ В УКРАЇНІ

The article analyzes the current state and features of domestic tourism in Ukraine. The dynamics of the share of domestic tourism in the total number of tourists served by tourism entities during 2015-2020 was studied. The share of domestic tourism in the total number of tourists served by tourism entities during 2015-2020 changed, and in 2020 amounted to 9.4%. The role of event tourism as an important element in the development of domestic tourism in Ukraine, its tourist destinations, attracting consumers, finding investment and improving the local and regional level of the economy. For example, event tourism is really one of the promising areas of development of tourism in the city of Zaporizhzhia, an important component of its tourism brand. The use of event tourism in the city of Zaporizhzhia as a promising area of domestic tourism is proposed. The organization of large-scale events has a very positive effect on the image of the city. Thematic types of event tourism in the city of Zaporizhzhia are considered. Examples are the All-Ukrainian Cossack Festival «Protection on Khortytsya», the festival «Protection Fair», music festivals «Khortytsia Freedom» and «Zaporizhzhia Jazzy», Zaporozhye International Film Festival «ZIFF», regular performances of the equestrian theater « Zaporizhzhia Cossacks' Festival» on the Rainbow», literary and artistic festival» Toloka «and many others. It is proposed to create a «Catalog of events in the city of Zaporizhzhia «, which will actively develop event tourism in the region, promote the formation of the tourist brand of Zaporizhzhia, position the city as a tourist destination in the tourist market not only in Ukraine but also in the world. , receiving additional funds to local budgets from the tourist tax. Event tourism is undoubtedly a very promising direction in the development of domestic tourism in Ukraine and in the regional tourism development policy of Zaporizhzhia region, because brand events are not only high cultural significance for locals, but also attract tourists and guests from other cities of Ukraine, life of the region.

Comparison of bathyscope and snorkelling methods for iwi monitoring of kākahi (Echyridella menziesi) populations in the shallow littorals of Lake Rotorua and Rotoiti

ABSTRACT Kākahi (Echyridella spp.) are freshwater cultural keystone species in New Zealand; they represent a valuable mahinga kai (species used as a food) resource and have high cultural significance to Māori, particularly to the Te Arawa and Ngāti Tūwharetoa iwi (tribal groups). Population densities of kākahi are thought to have declined in many locations in New Zealand, and accurate assessment methods are thus required to monitor changes in populations. A bathyscope method is currently used by iwi to monitor kākahi populations in lakes Rotorua and Rotoiti. It is unclear, however, how accurate this method is for determining kākahi abundance changes compared to underwater methods such as snorkelling. Comparisons at seven sites in Lake Rotorua and three sites in Lake Rotoiti show that significantly fewer kākahi are observed using a bathyscope relative to snorkelling (p < 0.0001). On average, snorkelling estimated 2.1 times more kākahi than the bathyscope method in Lake Rotorua, and 2.5 times more in Lake Rotoiti. We conclude that under suitable conditions, snorkelling is generally more effective than surface visual assessments using a bathyscope. Nevertheless, the bathyscope method is inexpensive, safe and simple, ideal for use by iwi and community groups for long-term monitoring of kākahi populations.

"Like a virgin". Correlates of virginity among Italian university students

Virginity, as a status, carries with it enormous personal and social meaning and represents a sexual milestone with high cultural significance. In this paper, we describe the correlates of virginity in Italy by consulting a large-scale survey of university students conducted in 2000 and 2017 (N = 12,400). First, we note a reduction between 2000 and 2017 of both male and female students reporting themselves as virgins at the time of the interview. Second, we highlight the salience of several demographic-, family-, interpersonal-, bodily-, and health-related factors associated with their virginity status. Third, the findings of the present study draw special attention to two crucial characteristics of Italian society: regional divisions and the role of religiosity. We show that, although religiosity is still important to the sexual lives of Italian youths, its relevance is weakening over time. In all, our study extends research on sexuality among Italian youths and sheds light on factors related to their virginity, seeking to feed future research on the topic.

Traditional detoxification of Jatropha curcas L. seeds

Ethnopharmacological relevanceJatropha curcas L. is a plant with high cultural significance for quilombola communities of Oriximiná (Pará State, Brazil). Although the plant is highly toxic, its seeds are used in these communities to treat tuberculosis and related diseases and symptoms. Aim of the studyThis study was designed to provide a scientific rationale for the traditional detoxification method and use of J. curcas seeds in quilombola communities of Oriximiná. Materials and methodsJ. curcas seeds were manually separated into testa, tegmen, endosperm, and embryo, and then methanolic extracts of each sample were prepared. The traditional preparation of J. curcas seeds consists of a water extract of endosperms that is known as “milk of pinhão-branco”. The content of phorbol esters (PEs) in the extracts was analyzed by High-Performance Liquid Chromatography with Diode-Array Detection (HPLC-DAD). The cytotoxic activity was evaluated in human monocytic cell line THP-1 by Resazurin Reduction Assay, and antimycobacterial activity was assessed by determining Minimal Inhibitory Concentration (MIC) values against H37Rv and BCG strains using the Resazurin Microtiter Assay (REMA). ResultsThe content analysis revealed that the distribution of PEs within the seeds is not homogeneous. High contents were found in tegmens (4.22 ± 0.25–15.52 ± 0.06 mg/g) and endosperms (1.61 ± 0.07–5.00 ± 0.42 mg/g), while concentrations found in testas and embryos were all below 0.5 mg/g. The traditional preparation derived from the endosperm of J. curcas contained significantly less PEs than the endosperms (0.01 ± 0.005 mg/g). Against THP-1 cells, all the parts of the seed showed cytotoxic activity, while the traditional preparation was considered non-cytotoxic. Nevertheless, only the tegmen and endosperm of J. curcas were considered active against M. tuberculosis and M. bovis (MIC = 200 μg/mL). ConclusionThe results of this study indicated that the traditional processing performed by the quilombola people from Oriximiná is effective in reducing the toxicity of J. curcas seeds. Although inactive against mycobacteria, the extensive use of the traditional preparation and its low toxicity encourage further studies to investigate other biological activities.

Local ecological knowledge and its relationship with biodiversity conservation among two Quilombola groups living in the Atlantic Rainforest, Brazil.

Information on the knowledge, uses, and abundance of natural resources in local communities can provide insight on conservation status and conservation strategies in these locations. The aim of this research was to evaluate the uses, knowledge and conservation status of plants in two Quilombolas (descendants of slaves of African origin) communities in the Atlantic rainforest of Brazil, São Sebastião da Boa Vista (SSBV) and São Bento (SB). We used a combination of ethnobotanical and ecological survey methods to ask: 1) What ethnobotanical knowledge do the communities hold? 2) What native species are most valuable to them? 3) What is the conservation status of the native species used? Thirteen local experts described the names and uses of 212 species in SSBV (105 native species) and 221 in SB (96 native species). Shannon Wiener diversity and Pielou’s Equitability indices of ethnobotanical knowledge of species were very high (5.27/0.96 and 5.28/0.96, respectively). Species with the highest cultural significance and use-value indexes in SSBV were Dalbergia hortensis (26/2.14), Eremanthus erythropappus (6.88/1), and Tibouchina granulosa (6.02/1); while Piptadenia gonoacantha (3.32/1), Sparattosperma leucanthum (3.32/1) and Cecropia glaziovii (3.32/0.67) were the highest in SB. Thirty-three native species ranked in the highest conservation priority category at SSBV and 31 at SB. D. hortensis was noteworthy because of its extremely high cultural importance at SSBV, and its categorization as a conservation priority in both communities. This information can be used towards generating sustainable use and conservation plans that are appropriate for the local communities.

Sex-specific survival of adult common eiders in Nova Scotia, Canada

Common eiders (Somateria mollissima) are large sea ducks with a circumpolar distribution and have high cultural significance to sport hunters and indigenous peoples in many countries. Their gregarious habits, including colonial breeding and forming large flocks during migration and winter, make eiders susceptible to environmental stressors during breeding and non-breeding seasons. Our objective was to assess whether low adult survivorship could be contributing to suspected local population declines in Nova Scotia, Canada. We banded molting male and breeding female common eiders along the marine coastline of Nova Scotia and recaptured them in later years. We found that from 1997 to 2011, when males and females were banded, male survival (S) was high (S = 0.92; 95% CI = 0.87–0.95), whereas female survival was approximately 10% lower (S = 0.83; 95% CI = 0.78–0.87) and at a level comparable to what has been reported in other regions of the world where eider populations are thought to be in decline. Recovery rates (f) of harvested male and female eiders were indistinguishable (f = 0.013; 95% CI = 0.010–0.016), suggesting that lower female survival is attributable to factors other than hunting. Supplementary analyses using a longer-term data set for females only (1978–2011) and including live recapture data indicated that female survival rates have not changed markedly during the past 40 years and that the emigration rate from colonies is low (∼6%). We conclude that to successfully conserve this population, sources of non-harvest female mortality should be investigated and used to develop targeted management solutions. We speculate that one of those sources of mortality is predation on females at breeding colonies, notably from eagles and mustelids. © 2016 The Wildlife Society.