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Quantifying heat stress using wet bulb globe temperature measurements during summer 2024 from field experiments in Pune. 2024年夏季浦那现场实验中使用湿球温度测量来量化热应力。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-09 DOI: 10.1007/s00484-025-03080-6
Ravi Ranjan Kumar, Arpit Tiwari, Ananya Karmakar, Ajay Bankar, Rajib Chattopadhyay, K S Hosalikar, Joy Merwin Monteiro, Shayanth Patil
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引用次数: 0
Metabolic and productive responses to heat stress in transition dairy cows: Interactions with calving stage, season, and farm management. 过渡期奶牛对热应激的代谢和生产反应:与产犊期、季节和农场管理的相互作用
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-09 DOI: 10.1007/s00484-025-03083-3
E N Martínez, C Castillo, L Avendaño Reyes, Rodrigo Muiño, L Díaz-González, J L Benedito, J Hernández

This study investigated the effects of heat stress (HS), calving period, and farm-level management on the metabolic and productive responses of transition dairy cows. Conducted on three commercial farms in northwestern Spain, the study employed a multifactorial design across two seasons (winter and summer) and four peripartum time points. Biochemical parameters, including non-esterified fatty acid (NEFA), β-hydroxybutyrate (BHB), urea, total protein, albumin, glucose, gamma-glutamyltransferase (GGT), and aspartate aminotransferase (ASAT) were analyzed using repeated-measures MANOVA. No significant three-way interactions were found, but several two-way interactions emerged. Notably, NEFA and urea levels varied significantly between farms, while total protein and albumin were influenced by both partum stage and season. Elevated NEFA and BHB concentrations postpartum indicated intensified lipid mobilization and negative energy balance, exacerbated under HS. Reduced albumin and increased urea levels suggested hepatic stress and altered protein metabolism. Farm-specific differences in ASAT during summer highlighted the role of local environmental and management conditions. These findings underscore the complex interplay between physiological stage, environmental stressors, and farm practices. Tailored intervention (such as nutritional adjustments, cooling systems, and precision monitoring) are essential to mitigate the metabolic burden of HS and safeguard cow health and productivity. Future research should explore long-term impacts and adaptive strategies across diverse production systems.

本研究旨在研究热应激、产犊期和农场管理对过渡期奶牛代谢和生产反应的影响。该研究在西班牙西北部的三个商业农场进行,采用多因素设计,跨越两个季节(冬季和夏季)和四个围产期时间点。生化参数包括非酯化脂肪酸(NEFA)、β-羟基丁酸(BHB)、尿素、总蛋白、白蛋白、葡萄糖、γ -谷氨酰转移酶(GGT)和天冬氨酸转氨酶(ASAT)。没有发现明显的三方相互作用,但出现了一些双向相互作用。值得注意的是,NEFA和尿素水平在不同养殖场之间差异显著,而总蛋白和白蛋白受产期和季节的影响。产后NEFA和BHB浓度升高表明脂质动员和负能量平衡加剧,HS加重。白蛋白降低和尿素水平升高提示肝脏应激和蛋白质代谢改变。夏季各农场在ASAT方面的差异突出了当地环境和管理条件的作用。这些发现强调了生理阶段、环境压力源和农业实践之间复杂的相互作用。量身定制的干预措施(如营养调整、冷却系统和精确监测)对于减轻HS的代谢负担和保障奶牛的健康和生产力至关重要。未来的研究应探索不同生产系统的长期影响和适应策略。
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引用次数: 0
Thermal tolerance and heritability in dune-dwelling ants reveal bioindicator potential for climate vulnerability in coastal ecosystems. 沙丘蚂蚁的热耐受性和遗传力揭示了沿海生态系统气候脆弱性的生物指标潜力。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-06 DOI: 10.1007/s00484-025-03081-5
Karollina Vieira da Conceição, Maykon Passos Cristiano, Danon Clemes Cardoso

Climate change is expected to intensify thermal stress in coastal ecosystems, threatening biodiversity and ecosystem functioning. In this study, we investigate species-specific and colony-level variation in thermal tolerance among three psammophilous ant species (Mycetophylax spp.) inhabiting Brazilian coastal dunes. Using critical thermal limits (CTmin and CTmax), linear mixed-effects models, and heritability estimates, we assessed the role of diel activity rhythms and genetic structure in shaping thermal performance. Results revealed that M. simplex, a nocturnal and substrate-specialized species, exhibited significantly lower CTmin and CTmax values compared to diurnal congeners, and that colony identity explained a substantial portion of variance (H² = 0.53 for CTmin, H² = 0.39 for CTmax). These findings suggest limited thermal resilience and evolutionary constraints in M. simplex, reinforcing its potential as a bioindicator of thermal vulnerability. Given projected warming and habitat disturbance in southeastern Brazil, we highlight the importance of integrating functional traits and genetic metrics into environmental monitoring and conservation planning.

气候变化将加剧沿海生态系统的热应力,威胁生物多样性和生态系统功能。在这项研究中,我们研究了居住在巴西海岸沙丘上的三种嗜沙蚁(Mycetophylax spp.)的耐热性在物种特异性和群体水平上的差异。利用临界热极限(CTmin和CTmax)、线性混合效应模型和遗传力估计,我们评估了昼夜活动节律和遗传结构在塑造热性能中的作用。结果表明,单纯单胞菌是夜间和底物特化的物种,其CTmin和CTmax值明显低于白天的同族物种,并且群体身份解释了很大一部分差异(CTmin的H²= 0.53,CTmax的H²= 0.39)。这些发现表明,单纯单胞杆菌的热恢复能力有限,进化受到限制,这加强了其作为热脆弱性生物指标的潜力。鉴于巴西东南部预计的变暖和栖息地干扰,我们强调了将功能性状和遗传指标整合到环境监测和保护规划中的重要性。
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引用次数: 0
Impacts of cold spells on mortality risk in low-latitude subtropical plateau regions: a multi-dimensional analysis of spatial heterogeneity and vulnerability in Yunnan Province, China. 寒潮对低纬亚热带高原地区死亡风险的影响:云南省空间异质性和脆弱性的多维分析
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-06 DOI: 10.1007/s00484-025-03115-y
Le-Yun Tan, Xian Tang, Yu-Hui Chen, Yang Chen, Qiu-Li Yu, Yuan-Yi Zha, Pi Guo, Qing-Ying Zhang
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引用次数: 0
Revisiting therapeutic landscapes in the spa context: toward a multisensory, evidence-based framework for healing environments. 在水疗环境中重新审视治疗景观:朝向治疗环境的多感官、循证框架。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-05 DOI: 10.1007/s00484-026-03137-0
Jana Walterová, Tomáš Vylita, Alina Huseynli

The therapeutic potential of spa landscapes represents an emerging intersection between environmental psychology, medical geology, health geography, and wellness tourism research. This narrative review synthesizes existing empirical findings and theoretical frameworks to examine how spa environments contribute to human health and well-being outcomes. Historically, European spa towns exemplify therapeutic landscapes, rooted in the use of natural healing resources such as mineral waters, gases, peloids, and climate. These environments are shaped not only by their physical resources but also by multisensory qualities, spatial aesthetics, and cultural traditions, which together create complex therapeutic settings. Drawing from landscape architecture, environmental psychology, therapeutic horticulture, and medical geography, this review explores the mechanisms through which natural and designed spa landscapes facilitate healing processes. Evidence suggests that benefits arise from interactions between environmental quality, embodied experiences, and social and cultural factors. Yet scientific understanding remains fragmented, and no unified typology of spa environments, whether medical or wellness-oriented, or across various global contexts, currently exists. This review highlights the need for interdisciplinary empirical studies and proposes a conceptual basis for future research bridging environmental science, health geography, and wellness studies.

温泉景观的治疗潜力代表了环境心理学、医学地质学、健康地理学和健康旅游研究之间的新兴交叉点。本文综合了现有的实证研究结果和理论框架,探讨了温泉环境对人类健康和福祉的影响。从历史上看,欧洲温泉小镇是治疗景观的典范,植根于对自然治疗资源的使用,如矿泉水、气体、球体和气候。这些环境不仅受其物理资源的影响,还受多感官品质、空间美学和文化传统的影响,这些因素共同创造了复杂的治疗环境。从景观建筑学、环境心理学、治疗园艺学和医学地理学的角度出发,本文探讨了自然和设计的温泉景观促进治疗过程的机制。有证据表明,环境质量、具体体验以及社会和文化因素之间的相互作用产生了益处。然而,科学的理解仍然是支离破碎的,目前还没有统一的水疗环境类型,无论是医疗还是健康导向,还是跨越各种全球背景。这篇综述强调了跨学科实证研究的必要性,并提出了一个概念基础,为未来的研究连接环境科学,健康地理学和健康研究。
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引用次数: 0
Preliminary evaluation of the discomfort index for heat stress assessment across iran's diverse outdoor climates: a 30-Year analysis. 对伊朗不同室外气候的热应力评估不适指数的初步评估:30年分析。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-04 DOI: 10.1007/s00484-025-03120-1
Mehdi Asghari, Akram Tabrizi, Gholamabbas Fallah Ghalhari, Somayeh Farhang Dehghan
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引用次数: 0
Human simulation model for predicting body temperature, blood pressure, and blood flow rate under various thermal exposures - Part 1: development of physical model for average Japanese male in their 20s. 在各种热暴露下预测体温、血压和血流速率的人体模拟模型。第1部分:20多岁日本普通男性物理模型的开发
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-03 DOI: 10.1007/s00484-025-03072-6
Tomonobu Goto, Zhuoxi Niu, Yuki Chiba, Kentaro Amano, Yoshifumi Saijo

In the mechanism of thermal health problems, not only body temperature but also blood pressure and blood flow rate are key factors. Human body simulation is a useful tool for predicting these physiological quantities under various conditions. Therefore, we aimed to develop a new human-body simulation model to predict body temperature, blood pressure, and blood flow rate. Our model consists of a "physical model" that simulates the phenomena of heat and blood transfer based on the physical properties of the human body, and an "autonomic regulation model" that simulates the phenomena in which the physical properties of the human body are regulated by the activity of the autonomic nervous system. The physical model consists of a "thermal network (TNW) model" that simulates heat flow and body temperature, and a "cardiovascular (CV) model" that simulates blood flow and blood pressure. In this study, we focused only on developing the physical model. In addition, based on experimental data from a recent study, parameter settings were derived to simulate an average Japanese male in their 20s. By applying the derived parameter settings to the physical model developed in this study, we confirmed that the calculated body temperature, blood flow rate, and blood pressure under a thermally neutral and supine condition reproduced the experimental values well.

在热健康问题的机制中,除了体温外,血压和血流量也是关键因素。人体模拟是预测各种条件下这些生理量的有用工具。因此,我们的目标是开发一种新的人体模拟模型来预测体温、血压和血流量。我们的模型包括一个基于人体物理特性模拟热量和血液传递现象的“物理模型”,以及一个模拟人体物理特性由自主神经系统活动调节的现象的“自主调节模型”。物理模型包括模拟热流和体温的“热网络(TNW)模型”和模拟血流和血压的“心血管(CV)模型”。在本研究中,我们只专注于开发物理模型。此外,根据最近一项研究的实验数据,推导了参数设置,以模拟日本20多岁的普通男性。通过将导出的参数设置应用于本研究建立的物理模型,我们证实了在热中性和仰卧状态下计算的体温、血流量和血压与实验值很好地吻合。
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引用次数: 0
Observation of climatic parameters and plant phenology in the international phenological garden of Klaipėda University Botanic Garden, Lithuania. 立陶宛Klaipėda大学植物园国际物候园气候参数和植物物候观测。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-02 DOI: 10.1007/s00484-025-03067-3
Asta Klimienė, Ramutis Klimas, Renata Pilkaitytė
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引用次数: 0
Effects of ultraviolet B radiation and cold storage on Ram sperm morphology and physiology. 紫外线B辐射和冷藏对公羊精子形态和生理的影响。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-02 DOI: 10.1007/s00484-025-03082-4
Daniele S de S Cestaro, Antonio Sergio Varela Junior, Anthony Valverde, Ana Paula de Souza Votto, Daza de Moraes Vaz Batista Filgueira, Marc Yeste, Carine Dahl Corcini
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引用次数: 0
Correlation of high pollen concentrations with air pollutants and meteorological parameters: "the case of Islamabad, Pakistan". 高花粉浓度与空气污染物和气象参数的相关性:“以巴基斯坦伊斯兰堡为例”。
IF 2.6 3区 地球科学 Q2 BIOPHYSICS Pub Date : 2026-02-02 DOI: 10.1007/s00484-026-03133-4
Muhammad Humayun, Kalim Ullah, Saadia Naseem, Sohail Baber, Nighat Akbar, Zahid Ali

Air pollution influences climate change and contributes to respiratory allergies, yet interactions between these factors are less understood. The escalation of air pollutants and temperature increases can influence pollen concentrations, shifts in pollen seasons, and an increase in seasonal allergies. This study investigates trends of Broussonetia papyrifera, Pinus, Cannabis sativa, and grasses (Poaceae) pollen in Pakistan over the past 16 years, as well as their correlations with air pollutants and meteorological parameters. Minute-based data of 10 air pollutants were recorded using a HAZ-6000 scanner in Islamabad during 2022-23. Datasets on meteorological parameters (such as precipitation, temperature, wind speed, and relative humidity) and pollen concentrations (2008-2023) were retrieved from the Pakistan Meteorological Department (PMD). Both datasets were normalized, and monthly averages were calculated. Spearman correlation of pollen concentrations with air pollutants and meteorological factors was performed. Mean monthly pollen concentrations, meteorological parameters, and air pollutants were plotted utilizing the NCAR Command Language (NCL). Interestingly, O3, CO2, and NO2 showed a positive correlation, whereas SO2, NO, and CO showed a negative correlation with daily pollen concentrations/m3. Pollen season trends comparative analysis indicated a shift in seasonal pollen integral (SPIn), start date, and duration. This is the first study from Pakistan to suggest that increasing temperature and air pollutants correlate with higher pollen concentrations and extended pollen season. This research provides a baseline system for examining allergenic pollen season shifts over time, indicating an increase in pollen allergy abundance with climate change in South Asia.

空气污染影响气候变化并导致呼吸道过敏,但这些因素之间的相互作用尚不清楚。空气污染物的增加和温度的升高会影响花粉浓度、花粉季节的变化和季节性过敏的增加。本文研究了巴基斯坦近16年来纸莎草、松木、大麻和禾草花粉的变化趋势,以及它们与空气污染物和气象参数的相关性。在2022-23年期间,在伊斯兰堡使用HAZ-6000扫描仪记录了10种空气污染物的分钟数据。从巴基斯坦气象局(PMD)检索了2008-2023年的气象参数(如降水、温度、风速和相对湿度)和花粉浓度数据集。两个数据集均归一化,计算月平均值。研究了花粉浓度与大气污染物和气象因子的Spearman相关性。利用NCAR命令语言(NCL)绘制了月平均花粉浓度、气象参数和空气污染物。有趣的是,O3、CO2和NO2与花粉日浓度/m3呈正相关,而SO2、NO和CO呈负相关。花粉季节趋势对比分析表明,季节花粉积分(SPIn)、开始日期和持续时间发生了变化。这是巴基斯坦首次提出气温升高和空气污染与花粉浓度升高和花粉季节延长有关的研究。这项研究提供了一个基线系统来检查花粉季节随时间的变化,表明南亚花粉过敏丰度随着气候变化而增加。
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引用次数: 0
期刊
International Journal of Biometeorology
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