Search Results (1,181)

Invasive alien species threaten the security of agricultural and natural ecosystems. Aethina tumida Murray, 1867, threatens bee colony health and apicultural sustainability. However, the entomopathogenic nematode, Steinernema carpocapsae (Weiser, 1955), may be a potential biocontrol agent. Models (MaxEnt and CLIMEX) were used to predict the potential global distribution of both species under climate change. The results indicated that under the current climatic conditions, both models found suitable habitats for A. tumida primarily in South America, southern Africa, and South Asia, whereas S. carpocapsae exhibited a broader global spread. Notably, CLIMEX predicted a more extensive distribution than MaxEnt for both species. The MaxEnt results indicated that North America, Europe, and central Australia are suitable habitats for A. tumida expansion in SSP245 (2050s) and SSP585 (2070s), whereas S. carpocapsae was predicted to expand into Asia, North America, and Africa in SSP126 (2090s), SSP245 (2030s), and SSP585 (2070s). The CLIMEX results indicated that under the A1B and A2 climate scenarios, highly suitable habitats for both species decreased significantly, whereas they are predicted to moderately and marginally increase markedly in the 2100s. The potential distribution of A. tumida will depend on suitable climatic conditions and the presence of host bees. These results provide a scientific basis and support in preventing or controlling A. tumida. Full article

Integrated water resources management uses decision-making and planning techniques in developing long-term strategies to ensure the sustainability of water resources and the resulting water security of future generations. Policy formulation through such integrated planning interlinks with indicators serving as an information channel to decision-makers. The present effort aims to develop a specific methodology using technical, environmental, and social indicators, formulating composite indices to identify vulnerability to changing water conditions. Thus, a set of indices developed through a multiyear research effort in Latin America, namely Drought Vulnerability Index (DVI), Water Stress Vulnerability Index (WSTVI), Water Scarcity Vulnerability Index (WSCVI), and Water Changing Conditions Vulnerability Index (WCCVI). Time series analysis covered the years 1991–2020, whereas the reference period was 1961–2020. Climate and water resources information is mainly obtained from ERA5-Land reanalysis; social, economic, infrastructure, and institutional data derived from harmonized sources (COROADO Project-EU, FAO, The World Bank, WHO/UNICEF JMP). Statistical tests and Principal Component Analysis (PCA) identified the indicators included in the equations for each index. Expert knowledge played an important role in the development as data were collected according to known local specificities and global trends, as well as scientific criteria and methodological rigor regarding the proposed new indices. Finally, application of such a framework for spatially explicit analysis indicated higher levels of vulnerability to changing water conditions in the northern part of Mexico, the Andes, Bolivia, Paraguay, and Central America, and lower levels in Chile, Brazil, Uruguay, and Argentina. This application demonstrates that the produced composite indices may be implemented with matching success all over Latin America and, therefore, in diversified natural, technical, environmental, social and economic conditions. Full article

Monitoring ambient air quality is essential for assessing environmental conditions and examining relationships among pollution indicators. This study presents a cross-sectional comparative analysis of key air quality indicators (PM_2.5, O₃, NO₂, SO₂, CO, and volatile organic compounds), together with a contextual variable related to pollution exposure (household solid fuels), across countries in Latin America and the Caribbean for the year 2024. The objective is to characterize air quality profiles by analyzing the interrelationships among indicators and the relative positioning of countries, integrating both elements within a multivariate framework. Multivariate statistical techniques, including HJ-Biplot and cluster analysis, were applied to provide an integrated representation of the data. The results indicate differences in the configuration of air quality indicators across countries, with some Caribbean countries associated with lower levels of pollution indicators, while several South and Central American countries are associated with higher levels. These results also suggest associations between air quality indicators and factors such as industrial activity proxies, population density, and the use of household solid fuels. Given the cross-sectional nature of the data, these findings should be interpreted as associations rather than causal relationships. Full article

The intensification of urbanization and the environmental crisis highlight the need for new paradigms of sustainable urban development, in which mobility plays a central role. This article analyzes sustainable urban mobility initiatives in Latin American knowledge territories through a comparative framework that integrates Knowledge-Based Urban Development (KBUD) and urban circularity principles. Grounded in the Fourth-Generation Knowledge Territories (TC4) perspective, the study focuses on governance models and social participation as drivers of transformative mobility practices. Methodologically, it adopts a qualitative and exploratory case study approach, combining primary data from field visits with secondary sources such as legislation, institutional documents, and technical reports. Despite the proliferation of science parks and innovation districts in Latin America, little is known about how governance and social participation shape sustainable mobility initiatives in these contexts, particularly when analyzed through the combined lenses of KBUD and urban circularity. The comparative analysis reveals varying degrees of openness and limitations in urban mobility governance across the three territories selected (distritotec—Mexico, Parque Patricios—Argentina, and Porto Digital—Brazil). The findings reveal distinct governance configurations and degrees of alignment with circular mobility principles. Distritotec stands out for its multistakeholder governance and community-led mobility initiatives, reflecting efforts to operationalize the quintuple helix model. Parque Patricios shows fragmented integration between infrastructure improvements and participatory planning, while Porto Digital presents limited articulation between innovation policies and sustainable mobility, with centralized governance and low public engagement. Persistent challenges observed throughout the cases include the weak institutionalization of citizen participation, insufficient strategies to disincentivize private car use, and a lack of data governance mechanisms. Full article

Background: Foreign citizenship and low socioeconomic status are key determinants of health inequalities and may influence maternal and neonatal outcomes. This study aimed to assess maternal health during pregnancy and the main adverse maternal and neonatal outcomes related to labour and childbirth among women living in Trentino (Northern Italy), comparing women with Italian and foreign citizenship. Methods: A retrospective epidemiological study was conducted using data from the Birth Assistance Certificate (CedAP) database of the Autonomous Province of Trento. This study included all women who gave birth in Trentino between 2012 and 2016. Associations between citizenship and adverse outcomes were assessed using multivariable logistic regression models adjusted for potential confounders. Results: The analysis included 23,165 women, of whom 25.9% had foreign citizenship. Women with foreign citizenship showed a significantly higher risk of gestational diabetes mellitus compared with Italian women and an increased risk of extremely preterm birth (<28 weeks of gestation), particularly among women from Central and South America, Asia and Eastern Europe. Regarding labour and mode of delivery, women with foreign citizenship had a higher risk of caesarean section, especially among women from Central and South America and Africa. In terms of neonatal outcomes, infants born to women with foreign citizenship showed a higher likelihood of requiring phototherapy and admission to the neonatal intensive care unit. Conclusions: Significant differences were observed between immigrant and Italian women in both social determinants and maternal and neonatal perinatal outcomes. Identifying factors associated with adverse outcomes during pregnancy may help improve targeted maternal care and reduce health inequalities for both mothers and newborns. Full article

Family farming (FF) in Paraguay faces structural challenges related to institutional fragmentation, territorial inequalities, and limited coordination among stakeholders. In this context, the department of Itapúa provides a relevant case for analyzing how the relational structure of actors shapes territorial governance dynamics. This study examines how the network of actors involved in FF is configured and what this structure reveals about coordination processes, using a Social Network Analysis (SNA) approach. Based on 40 surveys conducted between April and May 2024, a directed and weighted network comprising 35 actors was constructed, including institutional, technical, productive, and market-related stakeholders. The analysis focuses on the intensity and structure of relationships shaping flows of information, resources, and territorial organization. The results reveal a relatively cohesive but functionally differentiated network. Technical actors and public institutions—particularly municipalities and the Ministry of Agriculture and Livestock (MAG)—occupy central and intermediary positions that facilitate coordination and information flows. In contrast, individual producers and market vendors remain in peripheral positions, limiting their influence within the network. The network structure combines elements of bonding and bridging social capital, although the limited presence of weak ties may constrain innovation and the incorporation of new actors. These findings point to a form of distributed territorial governance characterized by interdependence among actors, but also by structural asymmetries and coordination gaps between functional domains. Based on the results, the study highlights the need to strengthen coordination mechanisms, improve the integration of peripheral actors, and promote new connections between less articulated groups. Overall, this study provides empirical evidence on territorial governance in FF systems in Paraguay and demonstrates the value of SNA as a tool for analyzing coordination processes in rural contexts in Latin America. Full article

This essay examines the visual culture of what might be termed “the ecology of silver” between 1492 and 1710 in relation to colonialism on both sides of the Atlantic, with particular attention to both its shiny allure and the blind spots that that shininess produces. It focuses on three inter-related areas: depictions of Potosí, the great silver mountain in viceregal Peru; silver’s shine in European elite material culture; and the deployment of silver in celebrating the Spanish monarchy in viceregal Sicily, part of its empire within Europe. Current scholarship on early modern silver bifurcates between historical, political, and anthropological studies of silver’s extraction in the Americas and colonialism on one hand and a celebratory art historical scholarship focused on high-end European silver goods on the other. Scholars have energetically examined its extraction, the global trade in bullion, the rise of capitalism that it fed, and the wars that it fomented and paid for, but they stop short of inquiring into the ends to which silver was deployed within Europe and Asia beyond the naming of the principal ports. Meanwhile, studies of silver in Europe are overwhelmingly tightly drawn and connoisseurial, often with no reference to where the silver came from, let alone the circumstances of its extraction, transport, or even its effects. This split is due partly to a prevalent notion that silver’s value is inherent, objective, and caused by “rarity”; and it is partly due to art history’s unswerving identification with the rich and powerful. Such approaches overlook silver’s remarkable material and alchemical qualities and ignore its capacity to turn grubby profit into charismatic sparkle, which simultaneously drove the ecological and environmental damage and exonerated its profiteers. Early modern silver linked environmental destruction, colonialism, genocide, and coloniality to high culture, making it a particularly relevant topic for art historical analysis in this context. But more than that silver entwined them in complex, convulsive, and transformative ways, turning imperialism, violence and exploitation into beauty, shimmer and cultural sophistication. Hence, this essay insists on the centrality of imperial issues in the Old World as in the New, underscoring colonial dynamics within metropolitan culture while critically examining the work of seduction of art. The paradoxical quality of shine is the lens through which is seen the relation between violent coloniality and the allure and ecology of early modern silver. Full article

Dry-farmed vineyards of Vitis vinifera L. cv. País in central–southern Chile represent one of the oldest viticultural systems in the Americas; however, objective compositional evidence supporting valley-scale typicity remains limited. This single-vintage study evaluated whether dry-farmed País wines from the Maule and Itata valleys exhibit compositional and sensory differences under standardized winemaking conditions. Ten monovarietal wines (2018 vintage; n = 5 per valley) were produced by controlled microvinification and analysed for general chemistry, phenolic composition, polysaccharides, chromatic attributes (CIELAB), and volatile compounds (SPME–GC–MS), together with descriptive sensory analysis by a trained panel. Total phenols (~1.2 g GAE L⁻¹), anthocyanins (~130 mg malvidin-3-glucoside equivalents L⁻¹), and tannins were low and comparable between valleys. However, differences were observed in specific compositional domains: Maule wines showed higher flavanols, polysaccharides, and aldehydes, whereas Itata wines exhibited higher ester levels. Sensory evaluation revealed differences in colour intensity, floral aroma, retronasal red-fruit notes, and astringency. Multivariate analysis (PCoA) revealed a structured but partial separation between valleys; however, this pattern was not supported by PERMANOVA, indicating limited statistical evidence for multivariate differentiation. These findings, based on a single vintage, suggest subtle compositional and sensory differences rather than strong valley-level typicity. Full article

Background: Helicobacter pylori causes one of the most prevalent chronic bacterial infections worldwide. Data about H. pylori resistance rates to levofloxacin and rifampin (antimicrobials for second-, third- or fourth-line therapy) in Colombia and South America are scarce. The present study aimed to assess levofloxacin and rifampin resistance rates among 61 H. pylori isolates from the western-central region of Colombia and to identify gyrA point mutations associated with levofloxacin resistance. Methods: For this purpose, antimicrobial susceptibility was determined using the E-test method and gyrA mutations in levofloxacin-resistant isolates were identified by PCR amplification followed by DNA sequencing. Results: Resistance rates to levofloxacin and rifampin were 24.6% and 13.1%, respectively. Among the 15 levofloxacin-resistant isolates, 6 (40%) isolates had ≥2 gyrA mutations and 5 of them exhibited high (≥32 mg/L) levofloxacin MICs. In addition, two new mutations (Y90C and V89D) were also detected. Conclusions: Clinically relevant resistance to levofloxacin and rifampin was detected among H. pylori isolates from central-western Colombia. Multiple gyrA mutations were identified in a significant proportion of levofloxacin-resistant isolates and were mainly associated with high MIC values, highlighting the need for regional surveillance to guide eradication therapies. Full article

Senecavirus A (SVA) has rapidly emerged as a globally distributed swine pathogen, with clinical signs mimicking vesicular diseases such as Foot-and-Mouth Disease, posing challenges for timely detection and control. Here, we analyzed 329 complete SVA genomes spanning multiple continents to provide a comprehensive view of its evolutionary dynamics, recombination patterns, haplotype diversity, and global dissemination. Phylogenetic analyses revealed two major lineages: Lineage 1, consisting mainly of early strains from the United States before 2007, and Lineage 2, which emerged post-2007 and subsequently spread across the Americas and East Asia. Recombination was confined to Lineage 2 and concentrated in nonstructural regions, particularly 2C, highlighting intra-lineage genetic exchange as a driver of recent diversification. Haplotype analysis of the 3AB gene identified 170 distinct haplotypes, revealing a star-like network structure consistent with rapid population expansion from a central ancestral variant, while secondary branches reflect ongoing regional diversification. Despite this high genetic variation, genome-wide dN/dS ratios remained below one, and purifying selection was strongest in the N-terminal domains of structural and nonstructural proteins, indicating functional constraints that maintain viral fitness. Time-scaled phylogenetic reconstruction and Bayesian Skyline analysis revealed rapid lineage diversification and a marked increase in effective population size in the early 2010s. Phylogeographic inference further identified repeated introductions from the Americas into East Asia, likely facilitated by swine trade and other anthropogenic factors. Collectively, SVA evolution is driven by frequent mutation and intra-lineage recombination yet constrained by pervasive purifying selection, generating extensive genetic diversity while maintaining functional integrity, with implications for genomic surveillance and targeted control. Full article

The first golden mussel, Limnoperna fortunei (Dunker, 1857), specimens in North America were discovered on 17 October 2024 at the Port of Stockton on the lower San Joaquin River in California (United States). The golden mussel is native to southern China and is one of the highest-risk aquatic invasive species worldwide. Golden mussels colonize hard surfaces and cause significant biofouling, affecting vital infrastructure such as hydroelectric plants and water delivery systems. It spreads rapidly through hydrological connectivity and human-mediated transport, with water conveyance systems functioning as invasion highways. The Sacramento–San Joaquin River Delta is vital to endangered species and provides water to 30 million people and 790,000 ha of farmland in central and southern California, but faces severe ecological and economic threats from this invasion. The detection of golden mussels was received with concern due to their impact on ecosystems and infrastructure. One year after detection, the invasion front moved 545 km south of the initial detection site (in a straight line) into Silverwood Lake in San Bernardino County near Los Angeles. By April 2026, the invasion front had already advanced 707 km south to the Sweetwater Reservoir in San Diego County (detection date: 15 January 2026). The invasion path coincides with California’s major water delivery systems. Ballast water was the most likely introduction vector, further underscoring the inefficiency of well-intentioned ballast water management policies and the need to implement better ones. This article addresses five objectives: (1) document the introduction and current distribution; (2) highlight key invasive traits to guide management; (3) assess putative impacts in California; (4) review tested management strategies; and (5) propose an innovation-driven framework for golden mussel management. Full article

Furuncular myiasis is rarely reported in Southeast/Eastern Europe and may be underrecognized or misdiagnosed in non-endemic settings. We described two imported furuncular myiasis cases diagnosed in Romania following travel to Peru and confirmed the etiologic agent by larval morphology and mitochondrial cytochrome c oxidase subunit I (COI) sequencing. We also conducted a narrative review of published case reports/series from Southeast/Eastern Europe (1900–2025) and summarized case characteristics. A previously healthy 31-year-old woman and 32-year-old man presented with painful furuncle-like lesions on the upper back near the shoulder and the posterolateral upper arm, respectively, associated with pruritus and a sensation of movement. Each lesion had a central punctum with intermittent air bubbles. Occlusion of the breathing pore with petroleum jelly facilitated mechanical extraction of one barrel-shaped larva per lesion. Microscopy showed features consistent with second-instar Dermatobia hominis larvae, and COI sequencing demonstrated 97.14–99.33% identity with reference D. hominis sequences. Literature review identified 25 travel-associated cases, with D. hominis involved mostly after travel to Central/South America. These cases highlight the value of travel history and key diagnostic clues for D. hominis myiasis in travelers that may enable timely diagnosis and minimally invasive management. Greater awareness and reporting are needed to better define epidemiology. Full article

Background/Objectives: The Black Caribbean population of Honduras, also referred to locally as Negro Inglés, constitutes one of the country’s nine recognized indigenous and Afro-descendant peoples. Predominantly settled in the Bay Islands and sections of the Caribbean coast, this community traces its ancestry predominantly to West Africa and has remained culturally and linguistically distinct for more than three centuries. Despite its demographic and historical relevance, no population-specific short tandem repeat (STR) database has been established for this group. Methods: Allele frequencies for 23 autosomal STR loci were characterized in 100 unrelated Black Caribbean individuals from the department of Islas de la Bahía. DNA was extracted from blood on FTA cards and amplified with the PowerPlex Fusion 6C System (Promega Corporation). Statistical parameters were computed using Genepop v4.2, Arlequin v3.5 and GDA v1.0. Results: A total of 241 distinct alleles were detected across all 23 loci (mean 10.48 ± 3.85 alleles/locus). Expected heterozygosity ranged from 0.6541 (D13S317) to 0.9350 (SE33), with a mean of 0.8150 ± 0.0664—values consistent with a population of predominantly West African origin. No locus exhibited a significant departure from Hardy–Weinberg equilibrium after Bonferroni correction (α = 0.0022). The combined power of discrimination exceeded 99.9999% and the combined chance of exclusion surpassed 99.9999%. Conclusions: This first genetic characterization of the Honduran Black Caribbean population delivers an essential, population-specific reference dataset for forensic casework, paternity testing, and population genetics research. The data also deepen the understanding of Afro-descendant genetic diversity in Central America and constitute a critical step towards equitable forensic genetic services for all Honduran ethnic communities. Full article

Employee happiness has become a central concern for the social dimension of sustainability, particularly within small and medium-sized enterprises (SMEs) operating in emerging economies. However, empirical evidence remains limited regarding how advanced organizational self-management practices—especially when integrating holacracy-inspired practices and broader self-management mechanisms that show a positive and significant association with employee happiness in SME contexts, particularly in Latin America. Addressing this gap, this study examines the relationship between organizational self-management practices and employee happiness in Peruvian SMEs, adopting a predictive approach based on Partial Least Squares Structural Equation Modeling (PLS-SEM). Organizational Self-Management Practices (OSMPs) are modeled as a higher-order construct integrating holacracy-inspired and broader self-management practices. Data were collected from 383 SME employees through a structured questionnaire. The findings indicate that organizational self-management practices exert a positive and significant association with employee happiness, operating through an underlying mechanism in which self-management-oriented practices foster greater employee autonomy, participatory decision-making, role clarity, and shared responsibility, thereby supporting fundamental psychological needs and enhancing employees affective and cognitive well-being at work. By promoting these autonomy-supportive organizational conditions, Organizational Self-Management Practices (OSMPs) strengthen employee happiness in resource-constrained SME contexts, highlighting how Organizational Self-Management Practices function as internal governance mechanisms that enhance employee well-being and contribute to social sustainability by strengthening psychologically supportive, autonomy-enhancing, and socially sustainable work environments in emerging economy SMEs. These findings demonstrate that employee happiness represents a micro-level manifestation of social sustainability, linking internal organizational governance mechanisms with broader sustainable development outcomes in emerging economy contexts. Full article

Hospitality and tourism firms are central actors in sustainable tourism transitions because their operations are resource intensive and highly visible to consumers and local communities. This study examines whether board-level governance mechanisms—board independence, gender diversity, a sustainability committee, CEO duality, and board size—are associated with environmental performance, and whether environmental performance is related to firm value in global hospitality firms. Using a panel of 10 large publicly traded hospitality companies across North America, Europe, and Asia from 2013–2022 (100 firm-year observations) and fixed-effects estimation, we find positive associations between board independence, board gender diversity, and the presence of a sustainability committee and environmental performance, while CEO duality is negatively associated. Environmental performance is positively associated with firm value (Tobin’s Q) after controlling for profitability and firm size. Because the sample is intentionally bounded to large listed firms and the Refinitiv Environmental Pillar Score is disclosure based, the results should be interpreted as sector-specific associative evidence rather than as definitive causal estimates of operational environmental outcomes. To support longitudinal research on emerging practices in sustainable tourism, we also document a public-source protocol that enables researchers to extend the panel beyond 2022, broaden firm coverage, and incorporate direct environmental indicators over time. The findings highlight board sustainability governance as a potentially important private-sector practice for strengthening environmental citizenship in hospitality, while also clarifying the measurement and generalizability limits of the present design. Full article