期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
温度变化对休耕期冬水田天敌捕食猎物的影响及天敌耐冷性分析 被引量:2
1
作者 孙佳琦 王光华 +2 位作者 任应党 陈琴 白耀宇 《生态学报》 CAS CSCD 北大核心 2022年第7期2943-2961,共19页
为评估冬水田休耕季节长达6—8个月温度变化对稻田主要捕食性天敌通过觅食策略维持其种群发生的影响,在室内测定了两种代表性温度下青翅蚁形隐翅甲Paederus fuscipes成虫、拟水狼蛛Pirata subpiraticus和拟环纹豹蛛Pardosa pseudoannul... 为评估冬水田休耕季节长达6—8个月温度变化对稻田主要捕食性天敌通过觅食策略维持其种群发生的影响,在室内测定了两种代表性温度下青翅蚁形隐翅甲Paederus fuscipes成虫、拟水狼蛛Pirata subpiraticus和拟环纹豹蛛Pardosa pseudoannulata成蛛、亚成蛛对天台刺齿虫兆Homidia tiantaiensis和白翅叶蝉Thaia rubiginosa成虫的捕食功能反应、搜寻效应、自身密度干扰效应以及捕食偏好性;测定了这些捕食者在这两种温度诱导下的过冷却点(Supercooling point, SCP)和结冰点(Freezing point, FP)。结果表明,温度变化显著影响了捕食性天敌的捕食功能反应、对猎物的搜寻效应以及自身密度的干扰反应。在22℃和12℃下,捕食者对刺齿虫兆和叶蝉的捕食功能反应均符合Holling II模型。由捕食功能反应可知,22℃下捕食者对两种猎物的捕食量均高于12℃下的捕食量,两种温度下捕食者对刺齿虫兆的捕食量要显著高于对叶蝉的捕食量。22℃下捕食者对两种猎物的瞬时攻击率、最大捕食量和a/T_(h)值均相应地高于12℃下的值,而22℃下它们对两种猎物的处理时间则相应地小于12℃下的处理时间。在同一猎物相同温度下,狼蛛和豹蛛亚成蛛的瞬时攻击率、最大捕食量和a/T_(h)值均相应地高于狼蛛和豹蛛成蛛的值,它们的处理时间则明显小于其成蛛的处理时间。隐翅甲的最大捕食量和a/T_(h)值在12℃叶蝉试验中均最大,而其处理时间则最小;其它条件下的隐翅甲参数值通常介于狼蛛和豹蛛成蛛、亚成蛛各参数值之间。捕食者对两种猎物的搜寻效应与猎物密度呈负相关;温度变化对捕食者搜寻效应的影响程度与捕食者和猎物的种类有关;22℃下的搜寻效应值均高于12℃下的搜寻效应值。捕食者对两种猎物的捕食作用均随自身密度升高而下降,22℃下对两种猎物和12℃下对刺齿虫兆的搜寻常数和干扰系数值均以狼蛛和豹蛛亚成蛛的为最高,而12℃下对叶蝉的这2个值以豹蛛亚成蛛和隐翅甲的为最高。两种温度下捕食者对这两种猎物存在选择偏好性,更嗜食刺齿虫兆,但温度变化没有对捕食者的这种猎物偏好性产生影响。在这两种温度快速冷驯化下这些捕食者间的SCP和FP均差异显著,通常温度降低能诱导亚成蛛的SCP和FP下降,而成蛛的升高,隐翅甲的变化很小或下降,说明不同捕食者适应温度降低的耐冷特性与其捕食作用间存在一定相关性。 展开更多
关键词 冬水田 休耕季节温度 捕食性节肢动物 天台刺齿虫兆 捕食作用 过冷却点
下载PDF
再生稻田拟环纹豹蛛与青翅蚁形隐翅甲间的集团内捕食及其影响因素 被引量:1
2
作者 孙佳琦 王晨 +3 位作者 王光华 任应党 祝增荣 白耀宇 《浙江大学学报(农业与生命科学版)》 CAS CSCD 北大核心 2022年第6期807-822,共16页
重要广食性天敌间的集团内捕食(intraguild predation, IGP)水平关乎着农田系统其种群的发生和“绿色防控”策略的成效。本研究以再生稻田主要捕食者拟环纹豹蛛(Pardosa pseudoannulata)和青翅蚁形隐翅甲(Paederus fuscipes)为试验对象... 重要广食性天敌间的集团内捕食(intraguild predation, IGP)水平关乎着农田系统其种群的发生和“绿色防控”策略的成效。本研究以再生稻田主要捕食者拟环纹豹蛛(Pardosa pseudoannulata)和青翅蚁形隐翅甲(Paederus fuscipes)为试验对象,首次建立和优化了实时荧光定量聚合酶链反应(quantitative real-time polymerase chain reaction, qPCR)探针法检测系统,利用该系统分析了再生稻田中这2种天敌间的IGP水平,并在室内条件下剖析了该IGP及其生物和非生物影响因素。结果表明:针对这2种天敌靶基因设计的引物和探针特异性强,建立和优化的qPCR探针法系统对靶基因的扩增重复性好且灵敏度高。通过该系统对再生稻田2种天敌1 527头个体的检测及室内IGP试验发现,这2种天敌间存在着普遍且较强的双向IGP作用,其中,捕食者和猎物角色的转化以及环境温度对该IGP水平的影响均与它们之间相对体型大小(发育阶段)密切相关;集团外猎物和非生物因素及其结合能不同程度地影响IGP水平。这些研究结果丰富了稻田系统捕食者间的IGP理论体系,为深入研究稻田捕食性天敌间IGP奠定了坚实的基础。 展开更多
关键词 捕食性天敌 集团内猎物DNA检出率 实时荧光定量聚合酶链反应 天台刺齿跳虫 环境温度 集团内捕食水平
下载PDF
The Homogeneity of Distributional Patterns of the Global Terrestrial Animal,Plant and Microorganism under the Influence of Ecological Conditions 被引量:1
3
作者 Shen Qi Lu Jiqi +2 位作者 You Zhixing ren yingdang Shen Xiaocheng 《Journal of Environmental Science and Engineering(A)》 2022年第4期121-137,共17页
The world animal geographical regionalization scheme and the plant geographical regionalization scheme have been formulated by zoologists and botanists respectively since the biogeography has been established.This res... The world animal geographical regionalization scheme and the plant geographical regionalization scheme have been formulated by zoologists and botanists respectively since the biogeography has been established.This research team initially confirmed the homogeneity of Chinese animal and plant geography.To explore the relationship between the distribution pattern of global animals,plants,and microorganisms,global 141,814 genera of terrestrial animals,17,526 genera of plants,21,321 genera of microorganisms,and their major taxa were analyzed using their proposed SGF(Similarity General Formula)and a new multivariate similarity clustering analysis method.Almost identical analytical results were obtained,meeting the requirements of statistics,geography,ecology and biology respectively.The expected consistency of their distribution pattern was achieved for the first time.We prove that the earth’s ecological conditions affect the homogeneity and accumulation of the distribution of animals,plants and microorganisms.Homogeneity determines the distribution pattern of global kinds of biological consistency,accumulation determines the impact of the evolutionary period on the breadth of distribution,microorganisms appear earliest,plants second,animals later,and their average distribution domain decreases in turn,reflecting these differences.Therefore,this study not only provides a theoretical basis and quantitative basis for the establishment of geographical regionalization scheme but also advances the development of biogeography to a new stage and raises the theory of biogeographic analysis to a new height. 展开更多
关键词 Distribution pattern clustering analysis terrestrial biology HOMOGENEITY geographical regionalization
下载PDF
Distribution Pattern and Geographical Division of Terrestrial Living Things in the World
4
作者 Shen Xiaocheng Lu Jiqi +6 位作者 ren yingdang Shen Qi You Zhixing Liu Xintao Zhang Shujie Wang Guanghua Yang Linlin 《Journal of Environmental Science and Engineering(B)》 2022年第5期165-188,共24页
After summary of the distribution data of 180,661 genera of terrestrial animals,plants,fungi,bacteria and viruses in the world,according to the ecological conditions such as topography and climate,the world land is di... After summary of the distribution data of 180,661 genera of terrestrial animals,plants,fungi,bacteria and viruses in the world,according to the ecological conditions such as topography and climate,the world land is divided into 67 BGUs(Basic Geographic Units),which are analyzed by four quantitative methods:Single linkage method,Average group linkage method,Sum of squares method and MSCA(Multivariate Similarity Clustering Analysis)method.The MSCA has stronger data mining ability than the first three traditional clustering methods,and can obtain more,more detailed,more accurate and more stable clustering results.According to the clustering results,the first world biogeographical regionalization system was established.This system not only affirms and supports the reasonable scientific core of the mammalian and flowering plant geographical division plan formulated by the predecessors of scholars in the 19th century,but also revises some imbalances in the division criteria and boundary determination caused by their qualitative methods,unifying various global geographical division plans emerging since the 21st century. 展开更多
关键词 Terrestrial organisms ANIMALS plants FUNGI bacteria distribution cluster analysis geographical division
下载PDF
Clustering Analysis of Distributional Patterns of Global Terrestrial Mammal
5
作者 Shen Xiaocheng Lu Jiqi +3 位作者 Shen Qi ren yingdang Liu Xintao Zhang Shujie 《Journal of Environmental Science and Engineering(B)》 2022年第4期97-110,共14页
In this study,the world’s land(except Antarctica)is divided into 67 basic geographical units according to ecological types.Using our newly proposed MSCA(Multivariate Similarity Clustering Analysis)method,7,591 specie... In this study,the world’s land(except Antarctica)is divided into 67 basic geographical units according to ecological types.Using our newly proposed MSCA(Multivariate Similarity Clustering Analysis)method,7,591 species of modern terrestrial mammals belonging to 1,374 genera in 162 families and 2,378 species of mammals in the Wallace era before 1876 are quantitatively analyzed,and almost the same clustering results are obtained,with clear levels and reasonable clustering,which conform to the principles of geography,statistics,ecology and biology.It not only affirms and supports the reasonable kernel of Wallace’s scheme,but also puts forward suggestions that should be revised and improved.The large or small differences between the clustering results and the mammalian geographical zoning schemes of contemporary scholars are caused by different analysis methods,and they are highly consistent with the analysis results of chordates,angiosperms and insects in the world analyzed by the same method.Once again,it confirms the homogeneity of the global biological distribution pattern of major groups,and the possibility of building a unified biogeographic zoning system in the world. 展开更多
关键词 Terrestrial mammals DISTRIBUTION cluster analysis geographical division
下载PDF
世界昆虫分布格局的聚类分析及地理区划 被引量:3
6
作者 申效诚 路纪琪 +3 位作者 任应党 申琪 刘新涛 杨琳琳 《科技导报》 CAS CSCD 北大核心 2020年第13期83-95,共13页
为了制定世界昆虫地理区划方案,按地形、气候等生态条件将世界陆地划分为67个基础地理单元,汇总世界31目1208科104344属昆虫在各地理单元的分布,用新提出的相似性通用公式和多元相似性聚类分析法进行定量分析,得到层次分明、结构合理的... 为了制定世界昆虫地理区划方案,按地形、气候等生态条件将世界陆地划分为67个基础地理单元,汇总世界31目1208科104344属昆虫在各地理单元的分布,用新提出的相似性通用公式和多元相似性聚类分析法进行定量分析,得到层次分明、结构合理的聚类实验:在相似性水平为0.300时,67个基础地理单元聚成20个小单元群;在0.200时,聚成7个大单元群。实验结果符合统计学、地理学、生态学、生物学的要求。依此结果制定了7界20亚界的世界首个昆虫的地理区划方案,并分析了各界、各亚界的昆虫区系特征,提出了昆虫与动物、植物、微生物分布格局的同质性及建立世界生物地理区划方案的可能性。 展开更多
关键词 昆虫分布 聚类分析 地理区划
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部