Rivers are important habitats for wintering waterbirds.However,they are easily influenced by natural and human activities.An important approach for waterbirds to adapt to habitats is adjusting the activity time and en...Rivers are important habitats for wintering waterbirds.However,they are easily influenced by natural and human activities.An important approach for waterbirds to adapt to habitats is adjusting the activity time and energy expenditure allocation of diurnal behavior.The compensatory foraging hypothesis predicts that increased energy expenditure leads to longer foraging time,which in turn increases food intake and helps maintain a constant energy balance.However,it is unclear whether human-disturbed habitats result in increased energy expenditure related to safety or foraging.In this study,the scan sample method was used to observe the diurnal behavior of the wintering Spot-billed Duck(Anas poecilorhyncha) in two rivers in the Xin’an River Basin from October 2021 to March 2022.The allocation of time and energy expenditure for activity in both normal and disturbed environments was calculated.The results showed that foraging accounted for the highest percentage of time and energy expenditure.Additionally,foraging decreased in the disturbed environment than that in the normal environment.Resting behavior showed the opposite trend,while other behaviors were similar in both environments.The total diurnal energy expenditure of ducks in the disturbed environment was greater than that in the normal environment,with decreased foraging and resting time percentage and increased behaviors related to immediate safety(swimming and alert) and comfort.These results oppose the compensatory foraging hypothesis in favor of increased security.The optimal diurnal energy expenditure model included river width and water depth,which had a positive relationship;an increase in either of these two factors resulted in an increase in energy expenditure.This study provides a better understanding of energy allocation strategies underlying the superficial time allocation of wintering waterbirds according to environmental conditions.Exploring these changes can help understand the maximum fitness of wintering waterbirds in response to nature and human influences.展开更多
旅游影响研究是旅游学研究的重要领域,包括旅游的经济影响、社会文化影响、环境影响、居民对旅游影响的感知等内容。以1995年～2005年期间在《Annals of Tourism Research》上发表的有关旅游影响研究的76篇论文为样本,从研究内容、研究...旅游影响研究是旅游学研究的重要领域,包括旅游的经济影响、社会文化影响、环境影响、居民对旅游影响的感知等内容。以1995年～2005年期间在《Annals of Tourism Research》上发表的有关旅游影响研究的76篇论文为样本,从研究内容、研究区域、研究方法与特点等方面对国外研究进行了系统综述,可以看出国外旅游影响研究非常注重模型的构建、运用和使用数理统计方法,并且对欠发达地区较为关注,但在旅游的环境影响以及对旅游影响的调控等方面的研究也存在不足。展开更多
本文以2002—2017年间收录在Web of Science数据库中来自Annals of Tourism Research中的1 657篇旅游学术文献为样本,借助Citespace可视化知识图谱分析软件进行分析,研究发现英国、美国等发达国家对旅游研究前沿的探索位居前列,亚洲地...本文以2002—2017年间收录在Web of Science数据库中来自Annals of Tourism Research中的1 657篇旅游学术文献为样本,借助Citespace可视化知识图谱分析软件进行分析,研究发现英国、美国等发达国家对旅游研究前沿的探索位居前列,亚洲地区的发展中国家越来越多地参与到旅游研究中。旅游研究类型更加多样化,研究对象更加丰富,从传统的教条式研究逐渐转向批判反思性的视角,从庞大的"宏观叙事"研究不断转向"微观日常生活实践"视角,从宏观的现象描述逐渐转向对旅游个体的深层解析,呈现出显著的跨学科和交叉学科特征,为旅游学科体系完善和创新提供了契机。展开更多
随着旅游业的发展,旅游业相关研究受到越来越多学着的重视,相关的研究文章日渐繁多,研究角度和侧重点也日新月异。《Annals of tourism research》作为国外旅游研究的重要刊物,其刊登的文章在一定程度上反映了目前国际旅游相关研究的主...随着旅游业的发展,旅游业相关研究受到越来越多学着的重视,相关的研究文章日渐繁多,研究角度和侧重点也日新月异。《Annals of tourism research》作为国外旅游研究的重要刊物,其刊登的文章在一定程度上反映了目前国际旅游相关研究的主要关注点。总结该刊物2005～2009年的239篇文章,其主要研究的国家为美国、英国、西班牙等11个,研究主体主要为旅游目的地、旅游者、旅游吸引物等11个。展开更多
·Chronic Opioid Prescribing in Primary Care:Factcors and Perspectives基层保健中的慢性阿片类药物处方:影响因素和看法·Opioid and Substance Use Disorder and Receipt of Treatment among Parents Living with Childre...·Chronic Opioid Prescribing in Primary Care:Factcors and Perspectives基层保健中的慢性阿片类药物处方:影响因素和看法·Opioid and Substance Use Disorder and Receipt of Treatment among Parents Living with Children in the United States, 2015-20172015—2017年与儿童同住的美国父母的阿片类药物使用和物质使用障碍治疗·Comparing Buprennorphine-Prescribing Physicians Across Nonmetropolitan and Metropolitan Areas in the United展开更多
It is my great pleasure to present to you the inaugural issue of Annals of Eye Science(AES),the official journal of Zhongshan Ophthalmic Center(ZOC)affiliated with Sun Yat-sen University.AES is published in English by...It is my great pleasure to present to you the inaugural issue of Annals of Eye Science(AES),the official journal of Zhongshan Ophthalmic Center(ZOC)affiliated with Sun Yat-sen University.AES is published in English by AME Publishing Company and publishes manuscripts that describe new findings in the field to provide current and practical information on the diagnosis and treatment of conditions related to ophthalmology.展开更多
Introduction: Tacitus on Law and Luxury'quid enim primum prohibere et priscum ad morem recidere adgrediar? villarumne infinita spatia? familiarum numerum et nationes? argenti et auri pondus? aeris tabularumque mir...Introduction: Tacitus on Law and Luxury'quid enim primum prohibere et priscum ad morem recidere adgrediar? villarumne infinita spatia? familiarum numerum et nationes? argenti et auri pondus? aeris tabularumque miracula? promiscas viris et feminis vestis atque illa feminarum propria,展开更多
Chinese markets play an important social role in the long history and are important places for currency circulation,human communication and cultural collision.However,with the acceleration of urbanization,market civil...Chinese markets play an important social role in the long history and are important places for currency circulation,human communication and cultural collision.However,with the acceleration of urbanization,market civilization has gradually faded.In this study,the current situation of a remaining market in Qingdao Development Zone was surveyed,and the problems of the market were discussed.Meanwhile,the reasons for the formation and survival of the market were analyzed,and some strategies to transform the market were put forward to find a way out for the development of the same type of markets in China.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 32100400)Huangshan University Startup Project of Scientific Research (2020xkjq013)Environment Conservation Research Centre of Xin’an River Basin (kypt202002)。
文摘Rivers are important habitats for wintering waterbirds.However,they are easily influenced by natural and human activities.An important approach for waterbirds to adapt to habitats is adjusting the activity time and energy expenditure allocation of diurnal behavior.The compensatory foraging hypothesis predicts that increased energy expenditure leads to longer foraging time,which in turn increases food intake and helps maintain a constant energy balance.However,it is unclear whether human-disturbed habitats result in increased energy expenditure related to safety or foraging.In this study,the scan sample method was used to observe the diurnal behavior of the wintering Spot-billed Duck(Anas poecilorhyncha) in two rivers in the Xin’an River Basin from October 2021 to March 2022.The allocation of time and energy expenditure for activity in both normal and disturbed environments was calculated.The results showed that foraging accounted for the highest percentage of time and energy expenditure.Additionally,foraging decreased in the disturbed environment than that in the normal environment.Resting behavior showed the opposite trend,while other behaviors were similar in both environments.The total diurnal energy expenditure of ducks in the disturbed environment was greater than that in the normal environment,with decreased foraging and resting time percentage and increased behaviors related to immediate safety(swimming and alert) and comfort.These results oppose the compensatory foraging hypothesis in favor of increased security.The optimal diurnal energy expenditure model included river width and water depth,which had a positive relationship;an increase in either of these two factors resulted in an increase in energy expenditure.This study provides a better understanding of energy allocation strategies underlying the superficial time allocation of wintering waterbirds according to environmental conditions.Exploring these changes can help understand the maximum fitness of wintering waterbirds in response to nature and human influences.
文摘旅游影响研究是旅游学研究的重要领域,包括旅游的经济影响、社会文化影响、环境影响、居民对旅游影响的感知等内容。以1995年～2005年期间在《Annals of Tourism Research》上发表的有关旅游影响研究的76篇论文为样本,从研究内容、研究区域、研究方法与特点等方面对国外研究进行了系统综述,可以看出国外旅游影响研究非常注重模型的构建、运用和使用数理统计方法,并且对欠发达地区较为关注,但在旅游的环境影响以及对旅游影响的调控等方面的研究也存在不足。
文摘本文以2002—2017年间收录在Web of Science数据库中来自Annals of Tourism Research中的1 657篇旅游学术文献为样本,借助Citespace可视化知识图谱分析软件进行分析,研究发现英国、美国等发达国家对旅游研究前沿的探索位居前列,亚洲地区的发展中国家越来越多地参与到旅游研究中。旅游研究类型更加多样化,研究对象更加丰富,从传统的教条式研究逐渐转向批判反思性的视角,从庞大的"宏观叙事"研究不断转向"微观日常生活实践"视角,从宏观的现象描述逐渐转向对旅游个体的深层解析,呈现出显著的跨学科和交叉学科特征,为旅游学科体系完善和创新提供了契机。
文摘随着旅游业的发展,旅游业相关研究受到越来越多学着的重视,相关的研究文章日渐繁多,研究角度和侧重点也日新月异。《Annals of tourism research》作为国外旅游研究的重要刊物,其刊登的文章在一定程度上反映了目前国际旅游相关研究的主要关注点。总结该刊物2005～2009年的239篇文章,其主要研究的国家为美国、英国、西班牙等11个,研究主体主要为旅游目的地、旅游者、旅游吸引物等11个。
文摘·Chronic Opioid Prescribing in Primary Care:Factcors and Perspectives基层保健中的慢性阿片类药物处方:影响因素和看法·Opioid and Substance Use Disorder and Receipt of Treatment among Parents Living with Children in the United States, 2015-20172015—2017年与儿童同住的美国父母的阿片类药物使用和物质使用障碍治疗·Comparing Buprennorphine-Prescribing Physicians Across Nonmetropolitan and Metropolitan Areas in the United
文摘It is my great pleasure to present to you the inaugural issue of Annals of Eye Science(AES),the official journal of Zhongshan Ophthalmic Center(ZOC)affiliated with Sun Yat-sen University.AES is published in English by AME Publishing Company and publishes manuscripts that describe new findings in the field to provide current and practical information on the diagnosis and treatment of conditions related to ophthalmology.
文摘Introduction: Tacitus on Law and Luxury'quid enim primum prohibere et priscum ad morem recidere adgrediar? villarumne infinita spatia? familiarum numerum et nationes? argenti et auri pondus? aeris tabularumque miracula? promiscas viris et feminis vestis atque illa feminarum propria,
基金Sponsored by the General Project of Natural Science Foundation of Beijing City(8212009)Organized Scientific Research Project of North China University of Technology in 2023(110051360023XN278).
文摘Chinese markets play an important social role in the long history and are important places for currency circulation,human communication and cultural collision.However,with the acceleration of urbanization,market civilization has gradually faded.In this study,the current situation of a remaining market in Qingdao Development Zone was surveyed,and the problems of the market were discussed.Meanwhile,the reasons for the formation and survival of the market were analyzed,and some strategies to transform the market were put forward to find a way out for the development of the same type of markets in China.
