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The clutch size,incubation behavior of Reeves’s Pheasant(Syrmaticus reevesii) and their responses to ambient temperature and precipitation

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Avian Research 2024年第1期15卷 72-80页

作者： Ting Jin Shuai Lu Yunqi Wang Junqin Hua Zhengxiao liu Qian Hu yating liu Yuze Zhao Jianqiang Li Jiliang Xu School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing100083China State Key Laboratory of Efficient Production of Forest Resources Beijing Forestry UniversityBeijing100083China

Weather conditions play a pivotal role in embryo development and parental incubation costs,potentially impacting the clutch size and incubation behavior of birds.Understanding these effects is crucial for bird conservation.Reeves’ s Pheasant(Syrmaticus reevesii) is a threatened species endemic to China,which is characterized by female-only incubation.However,there is a lack of information regarding the impact of weather conditions on clutch size and incubation behavior in this species.Using satellite tracking,we tracked 27 wild female Reeves’ s Pheasants from 2020 to 2023 in Hubei Province,China.We explored their clutch size and incubation behavior,as well as their responses to ambient temperature and precipitation.Clutch size averaged 7.75 ±1.36,had an association with average ambient temperature and average daily precipitation during the egglaying period,and was potentially linked to female breeding attempts.Throughout the incubation period,females took an average of 0.73 ±0.46 recesses every 24 h,with an average recess duration of 100.80 ±73.37 min and an average nest attendance of 92.98 ±5.27%.They showed a unimodal recess pattern in which nest departures peaked primarily between 13:00 and 16:00.Furthermore,females rarely left nests when daily precipitation was high.Recess duration and nest attendance were influenced by the interaction between daily mean ambient temperature and daily precipitation,as well as day of incubation.Additionally,there was a positive correlation between clutch size and recess duration.These results contribute valuable insights into the lifehistory features of this endangered species.

关键词： Ambient temperature Clutch size Incubation behavior Precipitation Reeves’s Pheasant

Large-brained birds display lower extra-pair paternity

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Integrative Zoology 2023年第2期18卷 278-288页

作者： yating liu Zhengjun WU Wenbo LIAO Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection Ministry of EducationGuangxi Normal UniversityGuilinChina Guangxi Key Laboratory of Rare and Endangered Animal Ecology Guangxi Normal UniversityGuilinChina Key Laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchongChina

Extra-pair paternity(EPP)beneﬁts to improve the reproductive success via extra-pair fertilizations without the costs of parental care in males and through improved offspring quality with additional food and parental care in females among species of birds.Variations in the EPP appear to link to behavioral and ecological factors and sexual selection.According to the“relationship intelligence hypothesis”,the cognitive abilities of the birds play an important role in maintaining long-term relationships.Here,we undertook theﬁrst comparative test of the relationships between extra-pair paternity and brain size,testis size,and life histories among 315 species of birds using phylogenetically controlled comparative analyses and path analysis.After controlling for the effects of shared ancestry and body mass,the frequency of EPP was negatively correlated with relative brain size,but positively with testis size across species of birds.However,the frequency of EPP was not linked to life-history traits(e.***.incubation period,ﬂedging period,clutch size,egg mass,and longevity).Ourﬁndings suggest that large-brained birds associated with enhanced cognitive abilities are more inclined to maintain long-term stable relationships with their mates and to mutualism with them than to increase the frequency of EPP.

关键词： brain size cognitive ability extra-pair paternity life history sexual selection

A copper-catalyzed three-component reaction of alkenes,cycloketone oximes and DABCO·(SO_(2))_(2):Direct C(sp^(2))-H cyanoalkylsulfonylation

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Chinese Chemical Letters 2022年第5期33卷 2383-2386页

作者： yating liu Luoyu Wang Ling-Hui Zeng Yun Zhao Tonghao Zhu Jie Wu School of Pharmaceutical and Chemical Engineering&Institute for Advanced Studies Taizhou UniversityTaizhou 318000China Department of Pharmacology Zhejiang University City CollegeHangzhou 310015China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China

A copper-catalyzed three-component reaction of alkenes,cycloketone oximes and DABCO·(SO_(2))_(2) is de-veloped,which provides a convenient route for the synthesis of diverse(E)-cyanoalkylsulfonyl alkenes in moderate to good yields with excellent regio-and stereoselectivity.A broad substrate scope with ex-cellent functional group tolerance is observed.A plausible radical pathway is proposed,which involves copper-catalyzed ring-opening C–C bond cleavage of O-acyl oxime and insertion of sulfur dioxide.During the reaction process,cyanoalkyl radical and cyanoalkylsulfonyl radical are the key intermediates.

关键词： Copper iodide Sulfur dioxide C-C bond cleavage C(sp^(2))-H Cyanoalkylsulfonylation Radical process

Synergistic effects of plant hormones on spontaneous late-ripening mutant of'Jinghong'peach detected by transcriptome analysis

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Food Quality and Safety 2022年第1期6卷 68-80页

作者： Man Zhang Tingting Du Yarui Yin Hongyan Cao Zhihua Song Mao Ye yating liu Yanhong Shen Libin Zhang Qing Yang Dong Meng Junkai Wu Hebei Normal University of Science and Technology QinhuangdaoChina Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization QinhuangdaoChina The College of Forestry Beijing Forestry UniversityBeijingChina Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beiling Forestry UniversityBeilingChina

Objectives:Peach(Prunus persica L.)is an ancient fruit tree that originated from China.It is the climacteric fruit belonging to genus Prunus in family Rosaceae.Ethylene,which is produced during ripening,accelerates fruit softening,and therefore peaches cannot be stored for a long time.Materials and Methods:To study the mechanism of fruit late ripening,transcriptome analysis of the fruit of a late-ripening mutant of'Jinghong'peach was performed to identify genes and pathways involved in fruit late ripening.Results:A total of 1805,1511,and 2309 genes were found to be differentially expressed in W2_vs_M1,W3_vs_M2,and W3_vs_M3,respectively.Functional enrichment analysis of the differentially expressed genes showed they were related to carotenoid biosynthesis,starch and sucrose metabolism plant hormone signal transduction,flavonoid biosynthesis,and photosynthesis.The expression trends of ripening-related genes that encode transcription factors and plant hormone signal transduction-related genes that encode enzymes were similar.Conclusions:It will help to elucidate the transcriptional regulatory network of fruit development in the spontaneous late-ripening mutant of‘Jinghong’peach and provide a theoretical basis for understanding the molecular regulatory mechanism of fruit ripening.

关键词： Peach late-ripening bud mutation transcriptome analysis plant hormones

A Recurrent Attention and Interaction Model for Pedestrian Trajectory Prediction

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IEEE/CAA Journal of Automatica Sinica 2020年第5期7卷 1361-1370页

作者： Xuesong Li yating liu Kunfeng Wang Fei-Yue Wang State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190and also with the University of Chinese Academy of SciencesBeijing 100049China College of Information Science and Technology Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China IEEE

The movement of pedestrians involves temporal continuity,spatial interactivity,and random diversity.As a result,pedestrian trajectory prediction is rather challenging.Most existing trajectory prediction methods tend to focus on just one aspect of these challenges,ignoring the temporal information of the trajectory and making too many assumptions.In this paper,we propose a recurrent attention and interaction(RAI)model to predict pedestrian trajectories.The RAI model consists of a temporal attention module,spatial pooling module,and randomness modeling module.The temporal attention module is proposed to assign different weights to the input sequence of a target,and reduce the speed deviation of different pedestrians.The spatial pooling module is proposed to model not only the social information of neighbors in historical frames,but also the intention of neighbors in the current time.The randomness modeling module is proposed to model the uncertainty and diversity of trajectories by introducing random noise.We conduct extensive experiments on several public datasets.The results demonstrate that our method outperforms many that are state-ofthe-art.

关键词： Deep learning long short-term memory(LSTM) recurrent attention and interaction(RAI)model trajectory prediction

城区数字高程模型修正方法:顾及空间异质性的可解释随机森林模型

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地球信息科学学报 2024年第4期26卷 978-988页

作者：刘妍孙延宁陈传法刘盼盼刘雅婷山东科技大学测绘与空间信息学院青岛266590 山东省水利科学研究院济南250101

目前,以遥感测量手段获取的全球数字高程模型(Global Digital Elevation Model,GDEM)在城区含有各种地物而不能反映真实的地球表面形态。因此,为提高城区GDEM产品质量,本文提出了一种顾及空间异质性和SHAP(Shapley Additive Explanatio... 详细信息

目前,以遥感测量手段获取的全球数字高程模型(Global Digital Elevation Model,GDEM)在城区含有各种地物而不能反映真实的地球表面形态。因此,为提高城区GDEM产品质量,本文提出了一种顾及空间异质性和SHAP(Shapley Additive Explanations)特征筛选的GDEM修正方法。该方法首先利用高斯混合聚类(Gaussian Mixture Model,GMM)和泰森多边形将研究区域划分为同质子区,解决GDEM修正误差和特征因子空间关系的异质性问题;然后基于SHAP可解释框架筛选每个子区的最优特征变量并借助随机森林(RF)构建对应的修正模型用于城区GDEM修正。为验证本文方法的实用性和高效性,以纽约30 m分辨率的COPDEM(COPDEM30)为研究对象,将本文方法与其他3种方法(包括顾及空间异质性的局域随机森林(SH-RF)、顾及SHAP特征筛选的全局随机森林(FS-RF)和传统随机森林(RF))的预估结果以及一种去除建筑物和植被偏差的GDEM(FABDEM)进行对比。实验结果表明,本文方法预测效果最优,SH-RF、FS-RF次之,RF效果最差。此外,与FABDEM相比,本文方法的平均绝对误差(MAE)降低了42.3%,中误差(RMSE)降低了63.2%。对本文方法的迁移实验表明,相比原始COPDEM30,修正后GDEM的MAE和RMSE分别降低了50.5%和50.4%。

关键词：全球数字高程模型修正空间异质性 SHAP可解释模型特征筛选城区精度评价

顾及空间异质性和特征优选的滑坡易发性评价方法

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测绘学报 2024年第7期53卷 1417-1428页

作者：刘雅婷陈传法山东科技大学测绘与空间信息学院山东青岛266590 山东省基础地理信息与数字化技术重点实验室山东青岛266590

高效、精准、可靠的滑坡易发性评价方法是灾前科学预警和全面防治的关键手段。然而,传统滑坡易发性评价方法未能有效解决空间异质性和冗余特征造成的预测偏差。针对该问题,本文提出了一种顾及空间异质性和特征优选的滑坡易发性评价方法(... 详细信息

高效、精准、可靠的滑坡易发性评价方法是灾前科学预警和全面防治的关键手段。然而,传统滑坡易发性评价方法未能有效解决空间异质性和冗余特征造成的预测偏差。针对该问题,本文提出了一种顾及空间异质性和特征优选的滑坡易发性评价方法(spatial feature optimized Stacking,SF-Stacking)。该方法首先使用AGNES聚类(agglomerative nesting)将研究区全局栅格单元分成若干个局部子区,然后采用一种特征优选策略为每个子区选择最优致灾因子组合,最后采用Stacking集成技术耦合多种机器学习算法实现滑坡易发性评价。以宜宾市为研究区,基于滑坡灾害易发性分区图和统计学指标,将SF-Stacking方法与7种传统方法对比表明,SF-Stacking方法的准确性最优,稳健性最强,可解释性最高。

关键词：滑坡易发性空间异质性特征优选 Stacking集成学习

空间生产理论视域下城市社区学习空间的意义生成机制

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现代远程教育研究 2024年第4期36卷 67-76,103页

作者：李娟刘雅婷顾凤佳上海开放大学发展研究部上海200433 上海师范大学教育学院上海200234

打造社区学习空间是建设学习型城市的重要举措,而如何吸引社区学习者融入社区学习空间并与之建立意义联结是社区学习空间运行实践面临的现实问题。空间生产理论提供了以生产和构建为核心特征的社会空间结构分析方法论指导,有助于揭示社... 详细信息

打造社区学习空间是建设学习型城市的重要举措,而如何吸引社区学习者融入社区学习空间并与之建立意义联结是社区学习空间运行实践面临的现实问题。空间生产理论提供了以生产和构建为核心特征的社会空间结构分析方法论指导,有助于揭示社区学习空间的意义生成机制。基于空间生产理论的三元辩证空间分析框架,结合以人为主体的空间—行为互动分析方法,对S市5个典型城市社区学习空间中36位社区学习者的半结构化访谈文本进行扎根理论分析发现:城市社区学习空间的意义生成可划分为三个阶段,即缘起于日常生活需求的意义触发阶段,由空间感知、空间认知和空间融入循环促进的意义构建阶段,由关系重构和意义感体验相互促进的意义恒定阶段;同时意义生成的过程性递进来自于社区学习者的内生动力、融入社区学习空间后的延续动力以及与空间的关系稳定后的维系动力。基于该意义生成机制,可通过强化与社区学习者日常生活的联结以触发内生动力,关注社区学习者的空间融入以维持延续动力,赋能社区学习者参与自治运行以强化维系动力,以此提升社区学习空间的运行活力。

关键词：社区学习空间空间生产理论意义生成机制三元辩证法

清代以来华北平原作物熟制演变重建与驱动力分析

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地理学报 2024年第3期79卷 765-778页

作者：李士成刘亚婷李建蕊张学珍中国地质大学(武汉)公共管理学院武汉430074 中国科学院地理科学与资源研究所中国科学院陆地表层格局与过程重点实验室北京100101 中国科学院大学资源与环境学院北京100049

历史土地集约利用重建是深入探究气候变化机制和影响的基础。本文从地方志和期刊论文中提取了清代以来华北平原不同地区(点)、不同时段的作物熟制及种植组合信息,据此重建了清代、中华民国(1912—1949年)、20世纪50年代、20世纪60年代... 详细信息

历史土地集约利用重建是深入探究气候变化机制和影响的基础。本文从地方志和期刊论文中提取了清代以来华北平原不同地区(点)、不同时段的作物熟制及种植组合信息,据此重建了清代、中华民国(1912—1949年)、20世纪50年代、20世纪60年代、20世纪70年代、20世纪80年代以来6个时段华北平原作物熟制及主要种植组合的时空演变,并探讨了其驱动力。结果表明:(1)清代至20世纪50年代华北平原作物熟制较稳定,以一年一熟和两年三熟为主,一年一熟主要集中在平原北部,两年三熟则多分布在河南和山东省。在灌溉和农业技术的驱动下,20世纪60—70年代华北平原大部分地区作物熟制演进为一年两熟、一年两熟与两年三熟混合,20世纪80年代以来则以一年两熟为主。(2)清代至20世纪50年代华北平原作物种植组合较稳定,一年一熟主要为谷、高粱等作物春种秋收,两年三熟作物组合以春玉米、冬小麦、豆类为主。20世纪60年代以来,一年两熟制作物组成在山东、河南、河北为冬小麦—夏玉米,在淮北为冬小麦—水稻;两年三熟制作物组合中夏作物由豆类发展成玉米/谷类。(3)清代以来,华北平原始终具备发展两年三熟、一年两熟的热量条件。热量变化并不是驱动华北平原清代以来熟制演变的主导因素,1949年中华人民共和国成立以来农业生产条件的改善和生产关系的变革推动了多熟制的快速发展。

关键词：华北平原过去300 a 作物熟制种植组合时空变化