Field Survey Research Articles

RESULTS OF ARCHAEOLOGICAL FIELDWORK IN THE DISTRICTS OF DAK SONG AND DAK MIL, DAK NONG PROVINCE, IN 2018

This study investigates the archaeological potential of Dak Nong Province, Vietnam, as revealed by fieldwork in the Dak Song and Dak Mil districts. We conducted field surveys at various sites, resulting in the discovery of a rich prehistoric heritage in the region, despite challenges posed by complex natural conditions. While artifact distribution and concentration vary across sites, we identified significant concentrations in areas near lakes, rivers, and streams. We find that at locations such as Village 9A, volcanic Lake Dak Mil, and Tay Son Village, traces of concentration are faint. In contrast, at sites such as Dak Peur Border Gate and Tan Lap Village, there are traces of a dense population and long occupation by prehistoric people. The prehistoric inhabitants of Dak Mil and Dak Song districts often lived along lakes, rivers, and streams that did not dry up in the dry season; they lived in a large area and were highly mobile. Our preliminary research highlights the value of Dak Nong Province in studying the early stages of prehistory and cultural development in the Central Highlands region of Vietnam. This also underscores the importance of preserving and promoting archaeological heritage in Dak Mil and Dak Song districts.

Adaptive use of streams, wells, and tianjing based on riverbanks and drainages in Hakka settlements of Futang Village before access to piped water

ABSTRACT To address the homogenisation of rural water use brought about by the popularity of water appliances, this study attempted to find a solution in the spatial and behavioural correspondence and fitness of environment on water use practice in Hakka settlements, habitats for immigrants. Studies on settlements have focused on landscape features, heritage conservation, and life behaviour. Water use has been analysed based on its relationship and comparison with space composition. Traffic-related studies have detailed planning practices, system functions, and history evolution. Unlike previous studies, this study combines the perspectives of architectural planning and environmental adaptability to examine linkages among riverbanks, drainages, and water use patterns in Futang Village and elucidated 3 of 11 hakka settlements’ adaptive use of streams, wells, and tianjing (courtyards) before piped water is available. Satellite map depictions, field surveys, and chi-square distributions showed that upstream and downstream settlements had distinct yet flexible water use behaviours, depending on their access to clean water bodies and sewage areas, concerns about the distance to water sources to perform household chores, and weather conditions. This demonstrates the practical value of adapting to fluvial landforms for developing water facilities and restoring water use activities.

A taxonomic revision of Tillandsia (Tillandsioideae, Bromeliaceae) from Uruguay

A taxonomic revision of the genus Tillandsia (Bromeliaceae) from Uruguay is here presented based on the examination of herbarium specimens, field surveys, and an extensive analysis of taxonomic literature. Nineteen taxa are recognized: 17 species, one subspecies, and one natural hybrid. A new identification key for all the species of Tillandsia occurring in the country is presented. Data on nomenclature (correct names, types, synonyms used in Uruguay) are provided for each taxon, along with detailed morphological descriptions, vernacular names, distribution and habitat information (global and local), phenology, conservation assessment, diagnostic characters, and nomenclatural and taxonomical notes. This information is complemented with images, illustrations of floral parts, maps showing species distribution in Uruguay, and a phenological diagram. Tillandsia arequitae and T. uruguayensis are endemic to Uruguay, and five species reach their southern limit of distribution in the country (T. bandensis, T. geminiflora, T. ixioides, T. loliacea, and T. stricta). Tillandsia capillaris and T. virescens are registered as exotic and subspontaneous. A new natural hybrid between T. aëranthos and T. recurvifolia is described. Three species previously cited for Uruguay (T. crocata, T. lorentziana, and T. streptocarpa) are excluded or cited as doubtful species for the country. Tillandsia bicolor is discarded as a synonym of T. aëranthos, and T. dianthoidea is considered for the first time as an illegitimate superfluous name. Lectotypes for Tillandsia arequitae (second-step), T. capillaris, T. circinalis (second-step), T. cordobensis (second-step), T. duratii, T. geminiflora (second-step), T. hieronymi (second-step), T. ixioides, T. microxiphion, T. recurvata, T. stricta (second-step), T. tricholepis (second-step) and T. virescens, as well as an epitype for T. aëranthos are designated.

Destructive fungal disease survey of common bean (Phaseolus vulgaris L.) rust (Uromyces appendiculatus) in Southern Ethiopia

Common bean (Phaseolus vulgaris L.) is important legume crop world-wide and in Ethiopia for its multipurpose uses. Common bean rust, is the most destructive fungal disease that severely reduces bean yield. For years, rust appeared in a farmer's field in Southern Ethiopia; however, the disease's significance remains unclear. The research aimed to ascertain the distribution and intensity of common bean rust, as well as elucidate the association of biophysical parameters. The field survey was conducted in southern Ethiopia in 2022. Ninety percent of the 78 commonbean fields were affected by common bean rust. Mareko, Meskan, Duguna Fango, Damot Woide, and Demba Gofa had 100% of the fields affected, and Boricha had 90%. Damot Woide and Lanfuro had the highest and lowest mean rust incidence rates, respectively, 59.2% and 22.5%. Duguna Fango had the highest rust severity (35.5%), while Lanfuro had the lowest (13.5%). In the research areas, the biophysical factors, either alone or in combination, have a significant impact on the intensity of common bean rust. The current investigation verified the distributionand the association biophysical factors with common bean rust. In addition, the survey of the disease and the identification of factors should continue over time and space.

Above‐ and belowground plant pathogens along elevational gradients: patterns and potential mechanisms

Plant pathogens are important for community assembly and ecosystem functioning and respond to a variety of abiotic and biotic factors, which may change along elevational gradients. Thus, elevational gradients are a valuable model system for exploring how environmental, plant community and soil factors influence pathogen communities. Yet, how these factors influence pathogens in natural ecosystems remains poorly understood. We examined the dynamics of plant fungal pathogens along elevational gradients, as well as the mechanisms shaping these dynamics, by combining a field survey on the Tibetan Plateau with a global meta‐analysis. In the field survey, increasing elevation was associated with a decrease in soil fungal pathogen richness but not in foliar fungal disease symptoms. Elevation was primarily related to soil fungal pathogen richness through abiotic factors, whereas no association was found between elevation and foliar fungal diseases. The meta‐analysis confirmed the generality of our field survey results: elevation was associated with a decrease in soil fungal pathogen richness, but it had no consistent relationship with foliar fungal diseases or pathogens. Thus, above‐ and belowground plant pathogen communities showed distinct elevational patterns, providing new insights into underlying mechanisms.

Geo-Spatial Technology for Identifying Optimal Well Locations in Kolugala Pahalagama Grama Niladhari Division for Effective Groundwater Management

This study utilized Geographic Information System (GIS) technology to pinpoint optimal locations for establishing wells, addressing the issue of declining water yields in the Kolugala Pahalagama Grama Niladhari Division (GND); a geographically diverse region. The research integrated geospatial data, including geolocations of sample wells, garbage pits and quarterly water level measurements collected through field surveys. Several thematic layers, namely, geology, elevation, slope, drainage density, soil type, and land use types were analysed to delineate groundwater potential zones within the GND. Satti's analysis hierarchy was employed to assign appropriate weights to these factors, reflecting their influence on groundwater recharge and well productivity. Spatial analysis revealed that 9.64% of the area displayed very good groundwater potential, 42.17% had good potential, 39.76% showed moderate potential, and 7.23% exhibited poor potential. The distribution of existing wells was also evaluated, showing that 6% were located in very good groundwater potential zones, 56% in good groundwater potential zones and 38% in moderate groundwater potential zones. Despite this, only 34% of the wells were placed in regions suitable for the establishment of wells, while the majority, 66%, were located in unsuitable areas. Notably, 18 wells displayed lower water levels, likely due to their excessive distance from neig-bouring wells. Further spatial analysis identified 29 hectares as unsuitable and 54 hectares as suitable for the future establishment of wells. These findings underscore the significance of geographic factors in the placement of wells, emphasising the need for strategic planning to ensure that wells are sited in areas with high groundwater potential, thus improving long-term water yield sustain-ability in the region.

Notes on Günther’s Oriental Slender Snake (<i>Trachischium guentheri</i>) from the Himalayan Realm of North Sikkim, India

The Indian Himalayan Region (IHR) is known for its biodiversity, yet it faces substantial threats fromanthropogenic activities and climate change. Despite the ecological importance of the IHR, herpetofaunal studies,especially in the eastern Himalayan State of Sikkim, remain limited. We herein address aspects of natural history ofa fossorial snake, Günther’s Oriental Slender Snake (Trachischium guentheri) in North Sikkim. We encountered 25snakes during field surveys from 30 September to 12 October 2023 in the Lachen region at elevations of 2,549–2,918m asl. Responses of snakes to unusually high rainfall led to increased road mortality during the peak tourist season. Inresponse, we propose two specialized structures, featuring elevated barriers and elaborate hollow, trapezoidal concreteslabs, to mitigate roadkills. We also emphasize the importance of monitoring to identify areas with high traffic wheremeasures to mitigate road mortality should be employed.

Biological and Molecular Characterization of a New Isolate of Tomato Mottle Mosaic Virus Causing Severe Shoestring and Fruit Deformities in Tomato Plants in India

Tomato (Solanum lycopersicum L.), the second most important vegetable crop globally, faces a significant threat from various viral diseases. A newly emerging disease, characterised by distinctive shoestring symptoms on leaves and the development of unripe, small, and hard fruit, poses a serious challenge to tomato cultivation in India. An initial survey in an experimental field revealed more than 50% of the plants displayed symptoms of the shoestring disease, resulting in substantial reductions in fruit yield and quality. Transmission electron microscopy (TEM) and molecular analyses identified an isolate of the tomato mottle mosaic virus (ToMMV) in the affected plants. When the partially purified virus was mechanically inoculated into tomato cv. Pusa Ruby plants, it reproduced the characteristic shoestring symptoms, confirming its causal relationship with the disease. Notably, the present shoestring isolate of ToMMV (ToMMV-Tss) was found to induce similar shoestring symptoms in most of the major commercial tomato varieties when inoculated under controlled experimental conditions in the glasshouse, indicating its aggressive nature. Host range studies demonstrated that the ToMMV-Tss can infect several solanaceous species, while cucurbitaceous hosts remained unaffected. Moreover, the virus was found to be seed-transmissible, with a small percentage of seedlings from infected plants displaying symptoms. These findings underscore the significant impact of ToMMV on tomato production in India and emphasise the need for reliable diagnostic tools and effective management strategies to curb the spread and mitigate the impact of this virus on commercial tomato cultivation.

Factors and effects of inter-individual variability in silver birch phenology using dense LiDAR time-series

Comprehending and quantifying local variability in plant phenology, alongside its impacts on tree growth, is challenging due to spatially and temporally heterogeneous environmental factors that interact to affect phenological events and periods. Although previous studies have focused on the climatic factors driving phenological events at the stand level, the influences of competition, neighborhood characteristics, species richness, and water availability on plant phenology remain unclear. In the present paper, we used hourly terrestrial LiDAR surveys performed between April 2020 and April 2021 to investigate the influence of local factors (neighborhood and topography) on the phenology of silver birch trees (Betula pendula Roth.). We also examined how phenological events affect growth in tree height and crown area. All response and explanatory variables were estimated using LiDAR time-series data and a field survey campaign. Our findings demonstrate a high within-species variability in plant phenology that is controlled by biotic and abiotic characteristics of the ecosystem. We found that between tree variation in leaf burst, completion of the leaf growth and length of canopy growth period were affected by tree size, neighborhood species richness, level of suppression and competition, which potentially indicate plant responses to light availability. The beginning of senescence, completion of leaf drop, and length of autumn phenology were mostly affected by topographic water index, which reflects water availability and can be linked to nutrient availability and exposure to wind. Furthermore, we demonstrated that an earlier leaf burst, and delayed beginning of senescence were associated with larger absolute growth in canopy area but found no clear relationship between height growth and phenology. Our study highlights the capability of dense, high-quality LiDAR time-series to detect significant phenological variation among individuals of the same species within the same locality, demonstrating the potential of LiDAR time-series as a tool for understanding phenology and its impacts.

Constructing more comprehensive pollination networks: integrating diurnal and nocturnal pollen data with visitation in a subalpine wetland community

IntroductionSampling for describing plant–pollinator interaction networks has been performed using techniques that either focus on the plants (with flower-visit data) or the animals (with analyzing pollen on the body surface of flower visitors). The differences in the structure of the networks obtained using these methods likely influences our understanding of the contribution of nocturnal pollinators, yet this key finding has yet to be the focus of study.MethodsIn this study, we conducted an intensive diurnal field survey in the subalpine meadows of the Dajiuhu Wetland and supplemented the data with an analysis of diurnal and nocturnal pollen data to examine the changes in pollination networks.ResultsWe observed 41 plant and 154 pollinator species, corresponding to 665 specific interactions. Visitation and pollen analyses showed significant differences in the composition and interaction between network plants and pollinators, resulting in important structural changes in the network. Given that the diurnal pollen data showed new links that were preferentially attached to highly connected nodes, the level of asymmetric specialization did not decrease; however, nestedness increased 1.3-fold, and mean pollinator connectivity from 3.1 to 5.1. As the behaviors of nocturnal pollinators tended to be more specialized, the inclusion of nocturnal pollen data led to an increase in the number of extreme-specialist pollinator species. Consequently, nestedness decreased 0.8-fold, but mean plant connectivity went from 14.2 to 16.2.DiscussionThese findings suggest that the structure of pollination networks is influenced by the sampling methods and the level of detail of the investigation. Our study has strong implications for the development of monitoring schemes for plant–pollinator interactions. Due to the practical difficulties of nocturnal field visitation, when conducting research, combining diurnal field visitation with both diurnal and nocturnal pollen analyses is the most convenient and realistic method to capture the full complexity of these networks.

Uptake of Per- and Polyfluoroalkyl Substances in Mixed Forages on Biosolid-Amended Farm Fields.

Models to predict perfluorooctanesulfonic acid (PFOS) concentrations in livestock based on soil concentrations are essential to guide decisions surrounding food testing and farm management. A key parameter in modeling soil-to-livestock exposure pathways is the plant transfer factor (TF) from soil into forages. Uptake of PFOS and other individual per- and polyfluoroalkyl substances (PFASs) were examined in perennial mixed grasses and legumes on PFAS-contaminated farm fields. In a field plot study, PFOS TFs were similar within each plot over three consecutive years but varied 10-fold among the four plots with mean TFs ranging from 0.026 to 0.27. In a multifarm field survey study, mean PFOS TFs ranged from 0.039 to 0.37. Increasing concentrations of two PFOS precursors in soil were significantly associated with increasing PFOS TFs. These data represent a substantial increase in empirical observations of PFAS TFs for grass-based forages for use in modeling soil-to-livestock exposure scenarios.

The Effect of Robot Anthropomorphism on Customers' Attention Activation and Satisfaction

ABSTRACTPrior research has predominantly focused on how interacting with anthropomorphic robots might affect customers' psychological processes and behaviors, wherein this stream of research has presented some inconsistent findings regarding its effectiveness in the service context. This research aims at taking a novel angle by illuminating on the arousal‐based reaction among customers, and their subsequent satisfaction. Grounded in selective attention theory, this research develops a model in which robot anthropomorphism activates customers' attention, which in turn cultivates heightened customer satisfaction. Findings across an eye‐tracking experiment (Study 1), a field survey study (Study 2), and a scenario‐based experiment (Study 3) converge to provide support to the hypotheses. The results of our mixed‐method approach shed new light on how robot anthropomorphism might impact customer satisfaction. Importantly, this study contributes to the research of service robot in the consumer psychology literature by disentangling an attention (arousal)‐based mechanism through which robot anthropomorphism might induce positive customer outcomes. Meanwhile, it simultaneously offers timely and crucial managerial implications for practitioners to better understand the underlying arousal‐based influences of digitalizing the service delivery among customers. This research ends with a discussion pertaining to its theoretical and practical implications.

Investigation of stem gall disease prevalence in coriander in Humid South-Eastern plain Zone-V of Rajasthan

Production of coriander is affected by many biotic and abiotic factors. Among them, diseases have been identified as significant limiting factors caused by fungi, bacteria, and viruses. Stem gall caused by the fungus Protomyces macrosporus Unger is the most prevalent and damaging disease of coriander. The field survey of stem gall disease of coriander (Coriandrum sativum L.) caused by Protomyces macrosporus Unger in Humid South Eastern Plain Zone-V of Rajasthan was conducted at five locations in each district viz., Kota, Baran and Jhalawar district for recording incidence and intensity of disease during Rabi 2021-22. The maximum stem gall disease incidence was recorded in Ramganj Mandi (70%) of Kota district, followed by incidence in Kalya Khedi (60%) of Kota and incidence in Shahbad (60%) of Baran district. In contrast, minimum stem gall disease of coriander incidence was observed in Kanwas (25%) of the Kota district, followed by Gopalpura village (35%) of the Baran district. The maximum per cent disease intensity (PDI) of stem gall disease was observed in Ramganj Mandi (47.5%) of Kota district, followed by stem gall disease PDI in Shahbad (37.5%) and Anta (32.5%) of Baran district. The minimum PDI was recorded in Kanwas (10.0%) of Kota district, followed by Nadi Khod village (12.5%) and Jarga village (15.0%) of Jhalawar district and Gopalpura (15.0%) of Baran.

Exploring Crisis Mitigating Measures of Micro and Small Enterprises during the Coronavirus Pandemic Crisis in Indonesia

This study examines the crisis mitigation measures (CMMs) implemented by micro and small enterprises (MSEs) during the COVID-19 pandemic in Indonesia. The research has three main goals: (i) to assess the impact of COVID-19 on MSMEs; (ii) to identify the business risks encountered by MSMEs during the crisis; and (iii) to investigate the most frequently adopted CMMs by MSMEs during the pandemic. The analysis utilizes secondary data from the 2020 national survey on MSEs in the manufacturing sector and primary data from a field survey of 137 MSEs across various cities and industries in Indonesia, conducted between May and September 2020. The findings indicate that the primary business risks during the crisis were (i) market risk (decreased domestic demand); and (ii) production risk (production stoppages due to lockdown measures). Consequently, many MSEs had to temporarily cease, shut down entirely, or pivot to different industries to remain operational, which was a common CMM among the affected MSEs. The study’s limitation is its small sample size, which prevents comprehensive survival analyses that could reveal significant differences in the development trajectories of MSEs during the crisis. Despite this, the study adds valuable insights to the literature on MSEs during economic crises.

Material Transformation Analysis of Mosques in Herat Old City, Afghanistan

This study aimed to find out the distribution, destructions, developments, transformations, and processes of changes of mosques after WWII in Herat Old City, which is a medieval city still preserved and standing. One hundred and eight mosques were constructed, 2 of them were demolished, and 106 still exist. Twenty-eight are modern mosques, and 80 are traditional. Twenty-two out of 80 are preserved, 56 have been transformed, and 2 were damaged, or demolished. Modern mosques are mainly located in the second and fourth quarters, while traditional mosques are distributed in all four quarters. The transformation started in the 1950s after WWII, continued in the 1970s, 1990s, and 2000s, and has occurred in all four quarters, slightly higher in the second and fourth quarters. Through a field survey, data were collected, findings were combined, unified, and plotted on the map, and the mosques were categorized based on building material.

Knowledge Management in Saudi Universities and Its Utilization for Financial Resource Development: A Survey and Applied Study at Najran University

Purpose: The study aims to explore knowledge management in Saudi Universities and its use in enhancing financial resources from the perspectives of leaders and faculty members at Najran University. Methodology: A descriptive-analytical documentary approach and a field survey were used with a questionnaire administered to a stratified random sample of (78) leaders, faculty members, and assistants at Najran University. Findings/Conclusions: Results indicate that knowledge management at Najran University is highly practiced overall. However, the survey shows limited investment of knowledge in financial resource development. Significant gender-based differences were found, favoring females, while no differences were observed based on college, job position, or experience. There remains a significant gap between knowledge management and its use in increasing university resources. Practical Implications: A strategy is needed to leverage intellectual capital in resource development by promoting innovations, utilizing patents, and research centers, transforming knowledge into commercial products, and establishing effective global marketing partnerships. Originality/Value: This study fills a theoretical literature gap and offers practical solutions to convert theoretical knowledge into economic commodities that benefit society, aiding in diversifying funding sources for Saudi, Arab, and developing country universities.

Well-Being and Healthcare Inequality on Bulon-Don Island in Southern Thailand—Results of a Pre-Intervention Field Survey

Background and objectives: Children living in an area distant from or associated with barriers to travelling to health service centres usually experience health and well-being disparities. This is a survey of child health and well-being on Bulon-Don Island, located 22 kms. from the southern mainland of Thailand, to gather essential background data before activating responses from local service provider agencies. Methods: Demographic data, physical and crude psychological health, harm to health, and living conditions of Bulon-Don children aged 1–14 years were studied and compared with the results of the corresponding national child health survey. Descriptive statistics were used for the statistical analysis of significance (p < 0.05). Results: A total of 21 male and 41 female children (N = 62) participated in the survey after obtaining consents from parents or care providers. The islanders are Indigenous people who use their own languages and have traditional beliefs. Comparing with the children of the national survey, most children aged <5 years were found to have significantly lower height and weight according to their age (p = 0.044 and p = 0.043, respectively), whereas those aged >5 years had a similar nutritional status. In addition, there is a lack of facilities for healthy living. However, the mean total psychological and ethical standards scores were significantly higher in the 1–5 and 6–9-year-old children. Conclusions: Disparity of socio-political status, cultural beliefs and practices, socioeconomic basis, and geographic distance from the mainland were the social determinants and barriers of low health service accessibility for the islander children. Comprehensive child health and well-being evaluation in an enclave of isolation like this is mandatory before an integrated intervention carried out by the local healthcare and living facilities providers is implemented.

Modeling sediment movement in the shallow-water framework: A morpho-hydrodynamic approach with numerical simulations and experimental validation

This work presents a morpho-hydrodynamic model and a numerical approximation designed for the fast and accurate simulation of sediment movement associated with extreme events, such as tsunamis. The model integrates the well-established hydrostatic shallow-water equations with a transport equation for the moving bathymetry that relies on a bedload transport function. Subsequently, this model is discretized using the path-conservative finite volume framework to yield a numerical scheme that is not only fast but also second-order accurate and well-balanced for the lake-at-rest solution. The numerical discretization separates the hydrodynamic and morphodynamic components of the model but leverages the eigenstructure information to evolve the morphologic part in an upwind fashion, preventing spurious oscillations. The study includes various numerical experiments, incorporating comparisons with laboratory experimental data and field surveys.

An investigation of soundscape perception in oncology polyclinics' waiting area based on biophilia hypothesis paradigm: a field and laboratory survey study

The present study employed an in-between investigation to examine changes in soundscape perception in two waiting areas of Ankara City Oncology assessing both audio-visual environments. For the investigation, a questionnaire survey procedure was employed based on a Biophilia Hypothesis Paradigm in the field and laboratory. While it is important to establish a baseline from a soundscape perspective within the paradigm, the latter establishes an investigation procedure that claims a positive affective outcome. Important measures for this study are Biophilic Quality using the Biophilic Interior Design Index (BIDI), Affective Attributes, Sound Overall Quality, Appropriateness, and Sound Source Dominance following ISO/TS 12913-2:2018., Method A. For the visual environment, Visual Appropriateness and Overall Quality were assessed. For the laboratory setting, audio and visual environments are digitally reproduced using still images and binaural recordings accordingly. Overall, 112 subjects completed the survey considered for further analysis. Significant differences were tested separately with the t-test and Mann-Whitney U test. The biophilic quality between waiting areas in the field varies from low to moderate biophilic, while the sound descriptors identify an eventful, annoying, monotonous, and chaotic sound environment for both waiting areas and settings based on mean scores.

Tradeoffs between Stand Volume and Understory Vegetation Diversity in Quercus wutaishanica Forests under Climate Change

Natural forests play a crucial role in providing various ecosystem services, including timber production and biodiversity conservation. However, climate change and anthropogenic factors pose a severe threat to competing forest ecosystem services functions. Therefore, to optimize and sustainably utilize competing forest services, tradeoffs are often necessary. This study was conducted in Northwest China to explore tradeoffs aimed at improving the quality of Quercus wutaishanica Mayr natural forests under climate change conditions, focusing on stand volume, timber production, and understory vegetation diversity conservation. Data from 77 field surveys were used to construct a coupled model for stand growth, stand structure, and site conditions. Changes in understory vegetation species number (UVSN) with crown cover were quantified. These models and relationships can be used as tools to estimate tradeoffs. As stand density increased, single-tree volume decreased, whereas timber volume increased. UVSN increased and then decreased with increasing crown cover and was able to maintain a relative maximum at 0.5–0.65. Under the current climatic conditions, the optimum stand densities corresponding to 30, 40, 50, and 60 years were 1390, 1153, 1042, and 871 trees/ha, respectively, to maintain a high UVSN and adequate stand volume. When mean annual temperature rose, stand densities could be reduced to maintain high-quality timber. Although only two major services were considered, the tradeoffs presented in this study can inform future research to improve the quality of natural forests.