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Journal articles on the topic 'Tree sun-exposure'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Cornelissen, J. H. C. "Seasonal and year to year variation in performance of Gordonia acuminata seedlings in different light environments." Canadian Journal of Botany 70, no. 12 (1992): 2405–14. http://dx.doi.org/10.1139/b92-299.

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The effects of light environment on temporal growth and allocation patterns in the subtropical Chinese evergreen tree Gordonia acuminata, a gap-dependent species, were studied during its first 2 years of growth. Seedlings were grown in full sun (S100), 55% of full sun (S5S), 33% of full sun (S33), and 18% of full sun (S18). During the 1st year, plant size and leaf dynamics were monitored nondestructively. The best growth was at S33. Growth rates fluctuated more from season to season in treatments of higher relative light exposure, largely owing to sun-imposed inhibition of growth in summer. Le

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Silva Neto, Francisco José da, Leila Bonfanti, Rodrigo Gazaffi, and Anastácia Fontanetti. "EFFECTS OF SHADE TREE SPATIAL DISTRIBUTION AND SPECIES ON PHOTOSYNTHETIC RATE OF COFFEE TREES." Coffee Science 14, no. 3 (2019): 326. http://dx.doi.org/10.25186/cs.v14i3.1584.

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The use of shade trees in coffee fields have been motivated by climatic changes. However, microclimatic conditions in shaded coffee fields differ due to shade tree spatial distribution and species, altering physiological responses of coffee trees. This study aimed to evaluate the effects of shade tree spatial distribution and species on coffee trees photosynthetic rate in two growth seasons, of high (HSD) and low (LSD) sink demand. The experimental design consisted of randomized blocks with three replicates in split-split-plots. Plots were the shade tree species: <em>Anadenanthera falcat

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Hill, Kathryn E., Stuart C. Brown, Alice Jones, Damien Fordham, and Robert S. Hill. "Modelling Climate Using Leaves of Nothofagus cunninghamii—Overcoming Confounding Factors." Sustainability 15, no. 9 (2023): 7603. http://dx.doi.org/10.3390/su15097603.

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Fossil leaf anatomy has previously been used as a proxy for paleoclimate. However, the exposure of leaves to sun or shade during their growth can lead to morphotype differences that confound the interpretation of fossil leaf anatomy in relation to climate and prevent reliable paleoclimate reconstruction. This work aims to model the differences in leaf anatomy that are due to various climatic drivers and differences attributable to sun or shade positions, using Nothofagus cunninghamii as the model species. Leaves from the sun and shade parts of three trees have been sampled from each of 11 site

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Briggs, Allan. "Roosting and breeding behaviour of Tawny Frogmouths Podargus strigoides in central-coastal Queensland." Australian Field Ornithology 40 (2023): 70–76. http://dx.doi.org/10.20938/afo40070076.

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The roosting and breeding behaviour of a pair of Tawny Frogmouths Podargus strigoides was observed on the central Queensland coast over a period of 4 years (2018–2021). The study was conducted in a subtropical climate near Rockhampton, and provides data from a different geographical and climatic area compared with previous studies that were conducted in temperate southern Australia (New England Tablelands, Moree, and Sydney, New South Wales, and the Australian Capital Territory). Breeding data matched other studies: breeding in November–December, incubation of 28–30 days, fledging at 27–31 day

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Medina Arroyo, Henry Hernan, Jhon Jerley Torres Torres, Carlos Alexis Palacios Palacios, Bayron Alexander Ruiz Blandón, Melida Martínez Guardia, and Leiser Rengifo Murillo. "Germination and growth of the tree Handroanthus chrysanthus (Bignoniaceae) under nursery conditions." UNED Research Journal 12, no. 2 (2020): e3175. http://dx.doi.org/10.22458/urj.v12i2.3175.

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Introduction: Selective logging of forests has significantly diminished the densities of Handroanthus chrysantha Jacq. in Colombia. Therefore, there is a need for studies that contribute to its management. Objective: We aimed to evaluate seed germination and the growth of seedlings under nursery conditions. Methods: Four pre-germinative, four organic substrates and two luminosity conditions were tested. We used a random multifactorial experimental design composed of 32 controlled factors. The main components were immersion of seeds in water at room temperature at different times, combinations

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Schweiger, Anna K., Alexis Lussier Desbiens, Guillaume Charron, Hughes La Vigne, and Etienne Laliberté. "Foliar sampling with an unmanned aerial system (UAS) reveals spectral and functional trait differences within tree crowns." Canadian Journal of Forest Research 50, no. 10 (2020): 966–74. http://dx.doi.org/10.1139/cjfr-2019-0452.

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Imaging spectroscopy is currently the best approach for continuously mapping forest canopy traits, which is important for ecosystem and biodiversity assessments. Ideally, models are trained with trait data from fully sunlit leaves from the top of the canopy. However, sampling leaves at the top of the canopy is often difficult, and sunlit foliage from the crown periphery is collected instead, assuming minimal within-crown trait variation among sunlit leaves. We tested the degree to which crown position affects foliar traits and spectra using mixed-effects models comparing sun leaves from the cr

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Vadeboncoeur, Matthew A., Katie A. Jennings, Andrew P. Ouimette та Heidi Asbjornsen. "Correcting tree-ring δ13C time series for tree-size effects in eight temperate tree species". Tree Physiology 40, № 3 (2020): 333–49. http://dx.doi.org/10.1093/treephys/tpz138.

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Abstract Stable carbon isotope ratios (δ13C) in tree rings have been widely used to study changes in intrinsic water-use efficiency (iWUE), sometimes with limited consideration of how C-isotope discrimination is affected by tree height and canopy position. Our goals were to quantify the relationships between tree size or tree microenvironment and wood δ13C for eight functionally diverse temperate tree species in northern New England and to better understand the physical and physiological mechanisms underlying these differences. We collected short increment cores in closed-canopy stands and ana

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Werle, C. T., and A. L. Witcher. "Potential Impacts of Shade Treatments on Dormancy of Overwintering Redbud (Cercis canadensis L.) Trees at Southeastern Nurseries." Journal of Environmental Horticulture 40, no. 2 (2022): 79–86. http://dx.doi.org/10.24266/2573-5586-40.2.79.

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Abstract Dormancy accrual is an important process in mitigating the abiotic stressors of overwintering trees at ornamental nurseries, with frost-injured tree crops at heightened risk of ensuing biotic insect and disease attack. As mean global temperatures rise, overwintering nursery crops may lose dormancy earlier. Using potted eastern redbud (Cercis canadensis L.) trees placed under two types of shade cloth, under full sun, or in walk-in coolers, we measured stem, air and root zone temperatures, accrual of chill hours and mean time to bud break at two sites. While there was no significant dif

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Baber, Ori, Martijn Slot, Gerardo Celis, and Kaoru Kitajima. "Diel patterns of leaf carbohydrate concentrations differ between seedlings and mature trees of two sympatric oak species." Botany 92, no. 7 (2014): 535–40. http://dx.doi.org/10.1139/cjb-2014-0032.

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A fundamental aspect of the carbon cycle is the exchange of carbon between plants and the atmosphere. It is, therefore, important to understand factors that affect differences in gas exchange and carbon balance within and among species. Concentrations of nonstructural carbohydrates are often used as a proxy for carbon balance. We determined diel patterns of leaf carbohydrate concentrations in relation to irradiance (sun vs. shade) in seedlings and mature trees of two sympatric oak species (Quercus virginiana Mill. and Quercus hemisphaerica Bartram ex Willd.). For seedlings, we also measured le

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Marler, Thomas E., and Louann C. Guzman. "Physiological Responses of Intsia bijuga Trees to Drought Stress." HortScience 30, no. 4 (1995): 860A—860. http://dx.doi.org/10.21273/hortsci.30.4.860a.

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Intsia bijuga is an important native tree on Guam, and is being promoted as an urban forestry tree. Container-grown I. bijuga trees were subjected to a drying cycle (50% of mean water loss replaced daily) to determine physiological responses to drought. Early to mid-morning gas exchange began to decline compared to well-watered plants on day 12, and quickly declined thereafter. Net CO2 assimilation (A) was close to zero by day 29 and became negative by day 36. Chlorophyll fluorescence of drought-stressed trees was not different from that of well-watered trees on numerous days of measurement th

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Tarwacki, Grzegorz, Cezary Bystrowski, and Katarzyna Celmer-Warda. "Effect of sun-exposure of the horse chestnut (Aesculus hippocastanum L.) on the occurrence and number of parasitoids of the horse chestnut leafminer (Cameraria ohridella Deschka & Dimic) in central Poland in 2004– 2006." Folia Forestalia Polonica, Series A - Forestry 54(1) (March 11, 2012): 56–62. https://doi.org/10.5281/zenodo.30877.

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The research on parasitoids of the horse chestnut leafminer (Cameraria ohridella Deschka & Dymić, 1986) of the order Hymenoptera was conducted in the years 2004– 2006 in six locations in central Poland. The complex of parasitoids was composed of 14 species. Minotetrastrichus frontalis (Nees) and Pnigalio agraules (Walker), (Hymenoptera: Eulophidae) were the dominant species in all locations. It was noted that sun-exposure of the horse chestnut (Aesculus hippocastanum L.) had a significant effect on abundance of parasitoids attacking the horse chestnut leafminer and their percentage s

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Krause, G. Heinrich, Esther Grube, Olga Y. Koroleva, Carina Barth, and Klaus Winter. "Do mature shade leaves of tropical tree seedlings acclimate to high sunlight and UV radiation?" Functional Plant Biology 31, no. 7 (2004): 743. http://dx.doi.org/10.1071/fp03239.

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Seedlings of neotropical forest trees grown in low light were exposed to 0.5–9 h d–1 direct sunlight, for up to 3 months, to test the capability of mature shade leaves to acclimate to full solar visible and UV radiation. Photosynthetic pigments and the antioxidant, ascorbate, were analysed in leaves of two pioneer and two late-succession species. Seedlings of one or two of these species were used to assess further acclimative responses. Sun-exposure for 0.5 or 1 h d–1 resulted in strongly decreased α-carotene and increased β-carotene and lutein levels. The pool size of xanthophyll-cycle pigmen

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Vogel, Sebastian, Martin M. Gossner, Ulrich Mergner, Jörg Müller, and Simon Thorn. "Optimizing enrichment of deadwood for biodiversity by varying sun exposure and tree species: An experimental approach." Journal of Applied Ecology 57, no. 10 (2020): 2075–85. http://dx.doi.org/10.1111/1365-2664.13648.

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Petralli, Martina, Luciano Massetti, David Pearlmutter, Giada Brandani, Alessandro Messeri, and Simone Orlandini. "UTCI field measurements in an urban park in Florence (Italy)." Miscellanea Geographica 24, no. 3 (2020): 111–17. http://dx.doi.org/10.2478/mgrsd-2020-0017.

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AbstractThe aim of this study is to evaluate human thermal comfort in different green area settings in the city of Florence by using the Universal Thermal Climate Index (UTCI). Field measurements of air temperature, solar radiation, relative humidity, wind speed and black globe thermometer were collected during hot summer days in various parts of Cascine Park, the biggest urban park in Florence (Italy). UTCI was evaluated over different surfaces (asphalt, gravel and grass) completely exposed to the sun or shaded by a large lime tree (Tilia × europaea). The results showed strong differences in

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Soares Ferreira, Daniel, Matheus Eduardo da Silva Oliveira, Wilian Rodrigues Ribeiro, et al. "Association of Altitude and Solar Radiation to Understand Coffee Quality." Agronomy 12, no. 8 (2022): 1885. http://dx.doi.org/10.3390/agronomy12081885.

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The consumer market has a strong tendency to consume specialty coffees, making it essential to understand the influence of environmental conditions, such as solar radiation and altitude, on coffee quality. This study aimed to analyze the physical and sensory quality of Arabica coffee as a function of different altitudes and incident solar radiation on the coffee tree. The study was carried out in the city of Manhuaçu-MG, Brazil. Three altitudes (950, 1050 and 1150 m above mean sea level) and two sides of coffee exposure to solar radiation (east face: morning sun and west face: afternoon sun) w

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McCullough, Deborah G., Therese M. Poland, and David Cappaert. "Attraction of the emerald ash borer to ash trees stressed by girdling, herbicide treatment, or wounding." Canadian Journal of Forest Research 39, no. 7 (2009): 1331–45. http://dx.doi.org/10.1139/x09-057.

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New infestations of emerald ash borer, Agrilus planipennis Fairmaire, an invasive pest native to Asia, are difficult to detect until densities build and symptoms appear on affected ash ( Fraxinus spp). We compared the attraction of A. planipennis to ash trees stressed by girdling (bark and phloem removed from a 15 cm wide band around the tree (2003–2005)), vertical wounding (same area of bark and phloem removed in a vertical strip (2004)), herbicide treatment (Pathway applied with a Hypo-Hatchet tree injector (2003) or basal bark application of Garlon 4 (2004, 2005)), exposure to the volatile

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Jehnes, S., G. Betz, G. Bahnweg, K. Haberer, H. Sandermann, and H. Rennenberg. "Tree Internal Signalling and Defence Reactions under Ozone Exposure in Sun and Shade Leaves of European Beech (Fagus sylvatica L.) Trees." Plant Biology 9, no. 2 (2007): 253–64. http://dx.doi.org/10.1055/s-2006-924650.

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Campanaro, Alessandro, De Zan Lara Redolfi, Sönke Hardersen, et al. "Guidelines for the monitoring of Rosalia alpina." Nature Conservation 20 (August 28, 2017): 165–203. https://doi.org/10.3897/natureconservation.20.12728.

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Rosalia alpina (Linnaeus, 1758) is a large longhorn beetle (Coleoptera: Cerambycidae) which is protected by the Habitats Directive and which typically inhabits beech forests characterised by the presence of mature, dead (or moribund) and sun-exposed trees. A revision of the current knowledge on systematics, ecology and conservation of R. alpina is reported. The research was carried out as part of the LIFE MIPP project which aims to find a standard monitoring method for saproxylic beetles protected in Europe. For monitoring this species, different methods were tested and compared in two areas o

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Stephen, Dillwyn, Kulastic Jassy Antony, Pragalyaashree Maripillai Munusamy, and Tiroutchelvame Deivanayagame. "Impact of Drying Methods on the Quality of Bioactive Components in Tree Tomato (Cyphomandra betacae)." Trends in Sciences 19, no. 2 (2022): 2060. http://dx.doi.org/10.48048/tis.2022.2060.

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Tamarillo (Cyphomandra betacea) is a tree native to Peru and is cultivated in few areas of Western and Eastern Ghats in India. It has high nutritive and therapeutic value due to the abundance of health promoting substances. Owing to its high nutritive profile, a study was conducted to examine the nutritional composition of fresh fruits and dried fruit powder. Fresh Tamarillo was dried under different methods of drying (sun drying, cabinet/tray drying and freeze drying). The dried samples were made into powder and used for comparative analysis of various bioactive constituents and antioxidants

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Jareemit, Daranee, and Manat Srivanit. "A Comparative Study of Cooling Performance and Thermal Comfort under Street Market Shades and Tree Canopies in Tropical Savanna Climate." Sustainability 14, no. 8 (2022): 4653. http://dx.doi.org/10.3390/su14084653.

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Walking through street markets is the most popular outdoor activity in Thailand, promoting local economies and tourism. In the year-round hot and humid conditions, living outdoors with long heat exposure throughout the midday can result in heat-related illness. Artificial shade structures and tree shade canopies are typical cooling strategies to protect market sellers and pedestrians from direct sun exposure and improve outdoor human thermal comfort in the street market. This study investigates microclimate conditions and cooling benefits of typical street market shade structures with differen

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Resnerová, Karolina, Jaroslav Holuša, Peter Surový, Jiří Trombik, and Emanuel Kula. "Comparison of Ips cembrae (Coleoptera: Curculionidae) Capture Methods: Small Trap Trees Caught the Most Beetles." Forests 11, no. 12 (2020): 1275. http://dx.doi.org/10.3390/f11121275.

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Ips cembrae is the most important bark beetle pest of larches and has had several local outbreaks in recent decades in Europe. In this study, we compared the numbers of I. cembrae captured by pyramid-trap piles, trap trees, pheromone traps, and poisoned and baited tripods. We also studied how the properties of trap trees and trap logs (volume, sun exposure, and position relative to the ground once deployed) affected the trapping of I. cembrae. We found that both sexes avoided infestation at the bottom of the logs and more than 15 times the number of beetles were captured by traditional trap tr

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García-Méndez, Valentina, Rebeca González-Gómez, Jorge Toledo, Javier Francisco Valle-Mora, and Juan F. Barrera. "Effect of Microclimate on the Mass Emergence of Hypothenemus hampei in Coffee Grown under Shade of Trees and in Full Sun Exposure." Insects 15, no. 2 (2024): 124. http://dx.doi.org/10.3390/insects15020124.

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The rainfall regime has a significant impact on the microclimate and mass emergence of the coffee berry borer, Hypothenemus hampei (Coleoptera: Curculionidae) (CBB). Little is known, however, about the shade tree–microclimate–CBB mass emergence interaction. The objective of the present study was to compare the effect of microclimate on the mass emergence of CBB in a full sun-exposed plot with a plot shaded by trees. The experiment was conducted on a Robusta coffee farm in southern Chiapas, Mexico. In each plot, 18 traps baited with an alcohol mixture were installed to capture flying females, c

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Musselman, K. N., and J. W. Pomeroy. "Estimation of Needleleaf Canopy and Trunk Temperatures and Longwave Contribution to Melting Snow." Journal of Hydrometeorology 18, no. 2 (2017): 555–72. http://dx.doi.org/10.1175/jhm-d-16-0111.1.

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AbstractA measurement and modeling campaign evaluated variations in tree temperatures with solar exposure at the edge of a forest clearing and how the resulting longwave radiation contributed to spatial patterns of snowmelt energy surrounding an individual tree. Compared to measurements, both a one-dimensional (1D) energy-balance model and a two-dimensional (2D) radial trunk heat transfer model that simulated trunk surface temperatures and thermal inertia performed well (RMSE and biases better than 1.7° and ±0.4°C). The 2D model that resolved a thin bark layer better simulated daytime temperat

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García-Montero, Luis G., Marisol Fragela, Stervins Alexis, and Gonzalo Almendros. "Tree Clearing for Coffee Production Threatens the Tropical Cloud Montane Forests of the Dominican Republic and Haiti, with Implications for Soil Fertility." Agriculture 15, no. 13 (2025): 1402. https://doi.org/10.3390/agriculture15131402.

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Tropical montane cloud forests (TMCFs) are biodiversity hotspots that have been increasingly cleared to cultivate coffee under full sun exposure, replacing traditional shaded agroforestry systems. This study evaluated the impact of TMCF clearing on soil quality by analyzing 108 samples from undisturbed primary and secondary forests and deforested coffee plantations in the Dominican Republic and Haiti. Our findings indicate that forest clearing has a substantial adverse impact on soil nutrient status. Soils from undisturbed plots had total organic carbon (TOC) concentrations 4.83 units higher t

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Ding*, Pinghai, and Leslie H. Fuchigami. "Application of Reflectance Spectroscopy in `Fuji' Apple Sunburn Early Detection." HortScience 39, no. 4 (2004): 772B—772. http://dx.doi.org/10.21273/hortsci.39.4.772b.

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Sunburn can be caused either by heat stress or by UV-B radiation. Under natural conditions fruit sunburn is usually caused by the combination of both heat stress and UV-B radiation. To evaluate the use of reflectance spectroscopy in early detection of fruit sunburn, 5-year-old `Fuji' apple bearing trees growing in pot-in-pot system at the Lewis-Brown Horticulture Farm of Oregon State Univ. were used in the experiment. Fruit sunburn was monitored either under natural conditions or treated with UV-B, heat or both under controlled conditions after detached from the tree. Under natural conditions,

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Acosta, X., A. X. González-Reyes, N. D. Centeno, and J. A. Corronca. "Biological, Ecological, and Distributional Aspects of Two Native Species of Lucilia Genus (Diptera: Calliphoridae) of Forensic Interest in Yungas Environments of Argentina." Journal of Medical Entomology 57, no. 6 (2020): 1700–1711. http://dx.doi.org/10.1093/jme/tjaa126.

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Abstract This study determined the spatial and temporal dynamics of two native neotropical species flies of forensic interest, belonging to the Lucilia (Robineau-Desvoidy) genus. The study focused on their abundance and reproductive behaviors associated with different habitats and phenological parameters. In the Province of Salta, Argentina, monthly samplings were performed over 1 yr in urban, rural, and native habitats, at morning, mid-day, and afternoon periods, controlling the oviposition of captured specimens. Environmental variables were also assessed: cloudiness, precipitation, relative

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Jarni, Kristjan, Marjana Westergren, Hojka Kraigher, and Robert Brus. "Morphological variability of Fraxinus angustifolia Vahl in the north-western Balkans." Acta Societatis Botanicorum Poloniae 80, no. 3 (2011): 245–52. http://dx.doi.org/10.5586/asbp.2011.014.

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<em>Fraxinus angustifolia </em>Vahl is a species native in the north-western Balkans, where it has a divided range. Most of its range is located in flood-prone riparian sites in the Pannonian plain but the species is also found on humid sites along some rivers in the Submediterranean region. We analysed morphologic variation within and between five populations (14 trees/population) located in the Subpannonian and Submediterranean region of Slovenia. Thirty two characters were assessed on ca. 80 leaves from each tree which were divided depending on exposure to sunlight (sun and shad

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Sharmin, Mahmuda, Manuel Esperon-Rodriguez, Lauren Clackson, Sebastian Pfautsch, and Sally A. Power. "Heat Impact of Urban Sprawl: How the Spatial Composition of Residential Suburbs Impacts Summer Air Temperatures and Thermal Comfort." Atmosphere 16, no. 8 (2025): 899. https://doi.org/10.3390/atmos16080899.

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Urban residential design influences local microclimates and human thermal comfort. This study combines empirical microclimate data with remotely sensed data on tree canopy cover, housing lot size, surface permeability, and roof colour to examine thermal differences between three newly built and three established residential suburbs in Western Sydney, Australia. Established areas featured larger housing lots and mature street trees, while newly developed suburbs had smaller lots and limited vegetation cover. Microclimate data were collected during summer 2021 under both heatwave and non-heatwav

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Winter, Sarah, Sally Ashton, Hannah Davies, and Avad Mughal. "P069 Familial malignant melanoma: CDKN2A mutation-positive family tree." British Journal of Dermatology 191, Supplement_1 (2024): i46—i47. http://dx.doi.org/10.1093/bjd/ljae090.096.

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Abstract The most common cause of inherited melanoma is mutations in the CDKN2A gene, which is a gene regulator of cell division. The risk of melanoma in carriers of this gene is 30% by 50 years and 67% by 80 years (Goldstein AM, Fraser MC, Struewing JP et al. Increased risk of pancreatic cancer in melanoma-prone kindreds with p16INK4 mutations. N Engl J Med 1995; 333: 970–5). Fortunately, germline mutation in the CDKN2A gene is believed to be rare in the population (Harland M, Cust AE, Badenas C et al. Prevalence and predictors of germline CDKN2A mutations for melanoma cases from Australia, S

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Kim, Eun-Sub, Seok-Hwan Yun, Chae-Yeon Park, Han-Kyul Heo, and Dong-Kun Lee. "Estimation of Mean Radiant Temperature in Urban Canyons Using Google Street View: A Case Study on Seoul." Remote Sensing 14, no. 2 (2022): 260. http://dx.doi.org/10.3390/rs14020260.

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Extreme heat exposure has severe negative impacts on humans, and the issue is exacerbated by climate change. Estimating spatial heat stress such as mean radiant temperature (MRT) is currently difficult to apply at city scale. This study constructed a method for estimating the MRT of street canyons using Google Street View (GSV) images and investigated its large-scale spatial patterns at street level. We used image segmentation using deep learning to calculate the view factor (VF) and project panorama into fisheye images. We calculated sun paths to estimate MRT using panorama images from Google

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Mladenović, S., T. Loskotová, J. Boháč, J. Pavlíček, J. Brestovanský, and J. Horák. "The effects of within stand disturbance in plantation forests indicate complex and contrasting responses among and within beetle families." Bulletin of Entomological Research 108, no. 6 (2018): 750–64. http://dx.doi.org/10.1017/s0007485317001304.

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AbstractPlantation forests with timber production as the major function are highly fragmented and disturbed regarding the tree species composition and stand area. Their closed canopies also have different microclimatic conditions compared with better studied conservation areas. We studied three beetle families (click, longhorn, and rove beetles) with different ecological demands in lowland plantation forests dominated by Sessile oak and Norway spruce in the Czech Republic. Our main interest was how their species richness, abundance, diversity, body length, rarity, red-list status, species comp

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Bogoutdinova, Liliya R., Ekaterina V. Tkacheva, Ludmila N. Konovalova, et al. "Effect of Sun Exposure of the Horse Chestnut (Aesculus hippocastanum L.) on the Occurrence and Number of Cameraria ohridella (Lepidoptera: Gracillariidae)." Forests 14, no. 6 (2023): 1079. http://dx.doi.org/10.3390/f14061079.

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The study of the leafmining moth of the chestnut miner (Cameraria ohridella Deschka & Dymić, 1986) was carried out through the planting of the common horse chestnut (Aesculus hippocastanum L.) in the Main Botanical Garden of the Russian Academy of Sciences. The effect of various degrees of insolation of horse chestnut plants on leaf morphology and the composition of secondary metabolites, as well as the relationship of these parameters with the number and density of C. ohridella populations during the growing season, was studied. The solar influence, it was noted, had a significant impact.

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Stepka, Thiago Floriani, Samuel Mariani, Geórgia Levorse Oliveira, et al. "Allied species with Dicksonia sellowiana Hook. in a High Montane Araucaria Forest Remnant, in Southern Brazil." TreeDimensional 11, no. 35 (2023): 1–11. http://dx.doi.org/10.55746/treed.2023.11.035.

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The Araucaria Forest in highlands is an environment characteristic of regions with altitudes greater than 1200 above sea level, in southern Brazil. The species that occur in this place are adapted to conditions of low temperatures and high humidity, where the presence of Dicksonia sellowiana Hook., a tree-sized pteridophyte with expressive importance value in many remnants. This research aimed to identify the associations of this species in a remnant of Araucaria Forest in the mountain region of Santa Catarina. The site was inventoried with permanent plots of fixed area of 200 m², which were s

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Badilla, Yorleny, Aloisio Xavier, Olman Murillo, and Haroldo Nogueira de Paiva. "IBA EFFICIENCY ON MINI-CUTTING ROOTING FROM TEAK (Tectona grandis Linn F.) CLONES." Revista Árvore 40, no. 3 (2016): 477–85. http://dx.doi.org/10.1590/0100-67622016000300011.

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ABSTRACT This study aimed to evaluate IBA efficiency in mini-cuttings rooting based on four Tectona grandis clones. Vegetative samples were collected in a hydroponic mini-clonal hedge in Verde Novo reforestation company at Colider, Mato Grosso. A factorial arrangement (4 x 6) was utilized, based on Carapá, Ipê, GU5 and TB7 clones vs six IBA dosages (0, 1000, 2000, 4000, 8000 and 16000 mg L-1), in a randomized block design based on three repetitions and 16 mini-cuttings per experimental unit. Cutting evaluations were based on survival and rooting rates after greenhouse conditions, after shadow-

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He, P., A. Radunz, K. P. Bader, and G. H. Schmid. "Influence of CO2 and SO2 on Growth and Structure of Photosystem II of the Chinese Tung-Oil Tree Aleurites montana." Zeitschrift für Naturforschung C 51, no. 7-8 (1996): 441–53. http://dx.doi.org/10.1515/znc-1996-7-801.

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Three months old plants of the Chinese tung-oil tree Aleurites montana were cultivated for 4 months in air containing an increased amount of 700 ppm CO2. During the exposure to 700 ppm CO2 the plants exhibited a considerably stronger growth (30-40% ) in comparison to the control plants (grown in normal air). In these CO2-plants during the entire analyzing period the amount of soluble proteins, of soluble sugars and the chlorophyll content were lower than in control plants. The protein content, referred to leaf area, increased during this time in both plant types by approx. 50% but with a diffe

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Bilgi, E., and C. Oksel Karakus. "Machine-learning Assisted Insights into Cytotoxicity of Zinc Oxide Nanoparticles." Journal of Physics: Conference Series 2695, no. 1 (2024): 012001. http://dx.doi.org/10.1088/1742-6596/2695/1/012001.

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Abstract Zinc oxide nanoparticles (ZnO NPs) are commercially used as an active ingredient or a color additive in foods, pharmaceuticals, sun protection lotions, and cosmetic products. While the use of ZnO NPs in everyday products has not been linked to any serious health issues so far, the scientific evidence generated for their safety is not conclusive and, in most cases, could not be validated further in in vivo settings. To settle controversies arising from inconsistent in vitro findings in previous research focusing on the toxicity ZnO NPs, we combined the results of 25+ independent studie

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Marler, Thomas Edward. "Diurnal Serianthes nelsonii Merr. leaflet paraheliotropism reduces leaflet temperature, relieves photoinhibition, and alters nyctinastic behavior." Journal of Threatened Taxa 11, no. 9 (2019): 14112–18. http://dx.doi.org/10.11609/jott.4958.11.9.14112-14118.

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The diel cycle of Serianthes nelsonii leaflet movements was characterized under four levels of shade from full sun to 22% sunlight transmission to determine the photoprotective components of diurnal leaflet movements and the relationship to patterns of nocturnal leaflet movements. Treatments also included negating paraheliotropism by re-orienting plants every 15min throughout the photoperiod such that the plants never experienced a predictable solar vector. The timing of leaflet closure to avoid high light, the shape of the diurnal curve depicting leaflet angle, and the maximum extent of leafl

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Mannan, Fahad, Logan Moore, Jorge Quiroga, et al. "Bioinspired Vertiport System Design for Supporting Drone Swarms in Methane Gas Detection from Orphaned Wells." Materials Evaluation 83, no. 4 (2025): 36–50. https://doi.org/10.32548/2025.me-04484.

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The aim of this paper is to explore bioinspired vertiport designs—a hub for drones’ vertical takeoff and landing (VTOL) and servicing, also referred to as a nesting station, docking station, hangar, or landing station—for drone swarms tasked with specific missions. The vertiport system design is inspired by tree structures, with branches represented by capsules that house drones. Solar panels mounted on actuators at the top of the vertiport adjust their orientation to maximize sun exposure, supplying power to the vertiport’s isolated grid for continuous energy day and night. A weather station

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Skrzecz, Iwona, Maria Bulka, and Joanna Ukalska. "Effects of location of Norway spruce (Picea abies) stumps on their colonisation by insects in the mountains." Folia Forestalia Polonica 61, no. 1 (2019): 64–77. http://dx.doi.org/10.2478/ffp-2019-0007.

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Abstract Tree stumps provide habitat for insect assemblages, which are influenced by various factors. Among these factors, physical and chemical changes of the stumps, fungi developing in the dead wood and stump size are most often reported. However there is limited information about the abundance of insects in stumps that are located on mountains where there are different microclimatic conditions. The studies pointed at the determination whether the location of Picea abies stumps in mountains at different altitudes above sea level and on mountainsides with different sun exposure has an impact

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López-Álvarez, Rosa Lina, Mario Luna-Cavazos, Juan Ignacio Valdez-Hernández, and Edmundo García-Moya. "Tree structure and diversity of a Humid Mountain Forest in the protected natural area La Martinica, Veracruz, Mexico." Revista de Biología Tropical 69, no. 4 (2021): 1189–203. http://dx.doi.org/10.15517/rbt.v69i4.46855.

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Tree structure and diversity at the protected natural area La Martinica, Veracruz, México. Introduction: The Humid Mountain Forest (HMF) has the largest number of plants per unit area, which vegetation grows in heterogeneous environmental conditions and has a high variation flora, physiognomy and structural. The conservation of the HMF is important due to the biodiversity it harbors and the environmental regulation services it provides. Objective: This work evaluated the effect of the direction of sun exposure (aspect) of the terrain and the density of the forest canopy (canopy opening type) o

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Russo, Danilo, Anne Mäenurm, Adriano Martinoli, Maurizio Zotti, and Luca Cistrone. "Forest islands in farmland provide vital roost trees year-round for giant and common noctule bats: Management implications." Forest Ecology and Management 540 (June 12, 2023): 121053. https://doi.org/10.5281/zenodo.13429303.

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(Uploaded by Plazi for the Bat Literature Project) Forest islands in agricultural landscapes may be vital for biodiversity conservation, providing habitats for a variety of species, including bats. Our study focused on a forest island in NE Italy, where we observed mixedspecies groups of giant (Nyctalus lasiopterus) and common (Nyctalus noctula) noctules roosting at the site. The giant noctule is highly endangered across Europe, and our findings shed light on its roosting preferences, providing key information to inform sustainable forestry practices that take this species into account. Using

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Russo, Danilo, Anne Mäenurm, Adriano Martinoli, Maurizio Zotti, and Luca Cistrone. "Forest islands in farmland provide vital roost trees year-round for giant and common noctule bats: Management implications." Forest Ecology and Management 540 (June 7, 2023): 121053. https://doi.org/10.5281/zenodo.13429303.

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(Uploaded by Plazi for the Bat Literature Project) Forest islands in agricultural landscapes may be vital for biodiversity conservation, providing habitats for a variety of species, including bats. Our study focused on a forest island in NE Italy, where we observed mixedspecies groups of giant (Nyctalus lasiopterus) and common (Nyctalus noctula) noctules roosting at the site. The giant noctule is highly endangered across Europe, and our findings shed light on its roosting preferences, providing key information to inform sustainable forestry practices that take this species into account. Using

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Russo, Danilo, Anne Mäenurm, Adriano Martinoli, Maurizio Zotti, and Luca Cistrone. "Forest islands in farmland provide vital roost trees year-round for giant and common noctule bats: Management implications." Forest Ecology and Management 540 (July 3, 2023): 121053. https://doi.org/10.5281/zenodo.13429303.

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(Uploaded by Plazi for the Bat Literature Project) Forest islands in agricultural landscapes may be vital for biodiversity conservation, providing habitats for a variety of species, including bats. Our study focused on a forest island in NE Italy, where we observed mixedspecies groups of giant (Nyctalus lasiopterus) and common (Nyctalus noctula) noctules roosting at the site. The giant noctule is highly endangered across Europe, and our findings shed light on its roosting preferences, providing key information to inform sustainable forestry practices that take this species into account. Using

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Russo, Danilo, Anne Mäenurm, Adriano Martinoli, Maurizio Zotti, and Luca Cistrone. "Forest islands in farmland provide vital roost trees year-round for giant and common noctule bats: Management implications." Forest Ecology and Management 540 (July 10, 2023): 121053. https://doi.org/10.5281/zenodo.13429303.

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Abstract:

(Uploaded by Plazi for the Bat Literature Project) Forest islands in agricultural landscapes may be vital for biodiversity conservation, providing habitats for a variety of species, including bats. Our study focused on a forest island in NE Italy, where we observed mixedspecies groups of giant (Nyctalus lasiopterus) and common (Nyctalus noctula) noctules roosting at the site. The giant noctule is highly endangered across Europe, and our findings shed light on its roosting preferences, providing key information to inform sustainable forestry practices that take this species into account. Using

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45

Russo, Danilo, Anne Mäenurm, Adriano Martinoli, Maurizio Zotti, and Luca Cistrone. "Forest islands in farmland provide vital roost trees year-round for giant and common noctule bats: Management implications." Forest Ecology and Management 540 (July 17, 2023): 121053. https://doi.org/10.5281/zenodo.13429303.

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Abstract:

(Uploaded by Plazi for the Bat Literature Project) Forest islands in agricultural landscapes may be vital for biodiversity conservation, providing habitats for a variety of species, including bats. Our study focused on a forest island in NE Italy, where we observed mixedspecies groups of giant (Nyctalus lasiopterus) and common (Nyctalus noctula) noctules roosting at the site. The giant noctule is highly endangered across Europe, and our findings shed light on its roosting preferences, providing key information to inform sustainable forestry practices that take this species into account. Using

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Dombroskie, Sarah, and Lonnie Aarssen. "The leaf size/number trade-off within species and within plants for woody angiosperms." Plant Ecology and Evolution 145, no. (1) (2012): 38–45. https://doi.org/10.5091/plecevo.2012.665.

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<b>Background and aims</b> – The leaf size/number trade-off has been recently established as a wide-spread and highly predictable relationship associated with between-species leaf size variation. In this study, we examine whether this trade-off relationship also applies at the between-plant (within-species), and at the between-shoot (within-plant) levels associated with spatial variation in incident light availability within tree canopies. <b>Methods</b> – Replicate current-year shoots were sampled from north-facing (shaded) and south-facing (sun-exposed) canopy sides of sixteen broadleaf tree

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Sato, T. "Recent progress in space weather research for cosmic radiation dosimetry." Annals of the ICRP 49, no. 1_suppl (2020): 185–92. http://dx.doi.org/10.1177/0146645320933401.

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The radiation environment in space is a complex mixture of particles of solar and galactic origin with a broad range of energies. In astronaut dose estimation, three sources must be considered: galactic cosmic radiation, trapped particles, and solar energetic particles (SEPs). The astronaut dose due to SEP exposure during a space mission is more difficult to estimate than the other components because the occurrence of a large solar particle event cannot be predicted by the current space weather research. Thus, several models have been proposed to estimate the worst-case scenario and/or the pro

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Maldera, Francesco, Vincenzo Carone, Ignasi Iglesias Castellarnau, Gaetano Alessandro Vivaldi, and Salvatore Camposeo. "Available PAR, Growth and Yield of a Super High-Density Almond Orchard Are Influenced by Different Row Orientations." Agronomy 13, no. 3 (2023): 874. http://dx.doi.org/10.3390/agronomy13030874.

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By 2022, the total area of super high-density (SHD) almond orchards worldwide had spread to 14,622 ha. As well as factors such as spacing, and tree architecture, proper row orientation should ensure a more efficient sun exposure, yield and harvesting. This research was conducted in an irrigated SHD almond orchard of cv. Lauranne® Avijor in Andria, Italy, in 2021 and 2022 (at 4th and 5th year from planting, respectively) to gain a deeper understanding on the effects of two row orientations on available Photosynthetic Active Radiation (PAR), Leaf Area Index (LAI), canopy growth, yield and harves

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Jackson, Jerome A., and Bette J. S. Jackson. "Ecological Relationships Between Fungi and Woodpecker Cavity Sites." Condor 106, no. 1 (2004): 37–49. http://dx.doi.org/10.1093/condor/106.1.37.

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Abstract The presence of rotted wood is often noted in descriptions of woodpecker nest and roost sites, and ornithologists have found that certain fungi and species of woodpeckers, such as the red heart fungus (Phellinus pini) and Red-cockaded Woodpeckers (Picoides borealis) are intimately linked. The relationship assumed is usually one of woodpecker dependence or preference for partially decayed wood in which to excavate cavities, but the woodpecker is also sometimes suggested as a vector for the fungus. In this paper we review such associations and describe patterns evident among woodpecker

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Diakite, A. A., L. Ng, J. Barton, et al. "LIVEABLE CITY DIGITAL TWIN: A PILOT PROJECT FOR THE CITY OF LIVERPOOL (NSW, AUSTRALIA)." ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences X-4/W2-2022 (October 14, 2022): 45–52. http://dx.doi.org/10.5194/isprs-annals-x-4-w2-2022-45-2022.

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Abstract. In recent years, the concept of Digital Twin (DT) for cities is increasingly at the core of most smart city initiatives, as it has been identified as a critical tool for tackling the challenges of this century. A robust city modelling framework is essential if local, state and national governments are to move towards sustainable built environments and work together across complex multi-sectoral problems to drive impacts that improve urban liveability and climate adaptability. Furthermore, the level of collaboration and interoperability required to address these cannot be achieved wit

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