检索结果-南通市图书馆

Second-growth and small forest clearings have little effect on the temporal activity patterns of Amazonian phyllostomid bats

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Current Zoology 2020年第2期66卷 145-153页

作者： Ricardo ROCHA Adria Lopez-Baucells fabio Z.farneda Diogo f.ferreira Ines SiLVA Marta AcAcio jorge M.Palmeirim Christoph f.j.M eyer Centre for Ecology Evolution and Environmental ChangesFaculty of SciencesUniversity of LisbonLisbon1749-016Portugal Biological Dynamics of forest fragments Project National Institute for Amazonian Research and Smithsonian Tropical Research InstituteManaus69011-970Brazil Conservation Science Group University of CambridgeCambridgeCB23EJUK Granollers Museum of Natural Sciences Granollers08402Spain Department of Ecology Federal University of Rio de JaneiroRio de Janeiro21941-902Brazil CIBI0-lnBI0 Research Centre in Biodiversity and Genetic ResourcesUniversity of PortoVairao4485-661Portugal Conservation Ecology Program School of Bioresources and TechnologyKing Mongkufs University of Technology ThonburiBangkok10150Thailand School of Environmental Sciences University of East AngliaNorwichNR47TJUKand'Ecosystems Environment Research Centre(EERC) School of ScienceEngineering and EnvironmentUniversity of SalfordSalfordM54WTUK

Secondary forests and human-made forest gaps are conspicuous features of tropical ***,behavioral responses to these aspects of anthropogenically modified forests remain poorly ***,we analyze the effects of small human-made clearings and secondary forests on tropical bats by examining the guild-and species-level activity patterns of phyllostomids sampled in the Central Amazon,***,we contrast the temporal activity patterns and degree of temporal overlap of 6 frugivorous and 4 gleaning animalivorous species in old-growth forest and second-growth forest and of 4 frugivores in old-growth forest and forest *** activity patterns of frugivores and gleaning animalivores did not change between old-growth forest and second-growth,nor did the activity patterns of frugivores between old-growth forest and ***,at the species level,we detected significant differences for Artibeus obscurus(old-growth forest ***-growth)and ***(old-growth forest ***).The degree of temporal overlap was greater than random in all sampled ***,for frugivorous species,the degree of temporal overlap was similar between old-growth forest and second-growth;whereas for gleaning animalivores,it was lower in second-growth than in old-growth *** the contrary,forest clearings were characterized by increased temporal overlap between *** in activity patterns and temporal overlap may result from differential foraging opportunities and dissimilar predation ***,our analyses suggest that activity patterns of bats in second-growth and small forest clearings,2 of the most prominent habitats in humanized tropical landscapes,varies little from the activity patterns in old-growth forest.

关键词： Amazon behavior forest gaps niche partitioning secondary forest temporal overlap

Trophic Interactions between Anadromous juvenile Alewife (<i>Alosa pseudoharengus</i>) and Cyanobacterial Populations in a Shallow Mesotrophic Pond

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Resources 2020年第9期11卷 394-419页

作者： Nancy j. Leland Ryan A. Landon james f. Haney Department of Zoology University of New Hampshire Durham NH USA Lim-Tex North Andover MA USA

Alosa pseudoharengus is an anadromous fish that migrates from marine to freshwaters to spawn. The early larval and juvenile forms are known to be planktivorous, where heavy feeding upon their preferred food source of large crustacean zooplankton often results in changes to composition and size structure within this trophic guild which in turn can result in shifts within the trophic spectrum and a classic trophic cascade. In this study of Lower Mill Pond, Brewster MA, we evaluated the feeding strategy of juvenile Alosa to determine whether juvenile alewife switches to feeding largely on cyanobacteria and whether cyanotoxins microcystin (MC) and β-methlyamino-L-alanine (BMAA) bioaccumulate in their muscle tissue. Within 15 - 30 days of their estimated spawning date, overexploitation of crustacean zooplankton resulted in a shift from planktivory to benthic detritivory for the majority of their life history, although this did not reduce their condition based on weight-length relationships (Log Wwt. = -5.503 + (3.101 ×font-family:Verdana;"> Log Length). Mean MC (0.003 μgfont-family:Verdana, Helvetica, Arial;white-space:normal;background-color:#ffffff;

关键词： Cyanobacteria juvenile Alewife Cyanotoxins MC BMAA Bioaccumulation Trophic Spectrum

The effect of tree size,neighborhood competition and environment on tree growth in an old-growth temperate forest

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

journal of Plant Ecology 2017年第6期10卷 970-980页

作者： Zhaochen Zhang Michael j.Papaik Xugao Wang Zhanqing Hao ji Ye fei Lin Zuoqiang Yuan CAS Key Laboratory of forest Ecology and Management Institute of Applied EcologyChinese Academy of Sciences72 Wenhua RdShenhe DistrictShenyang 110016China University of Chinese Academy of Sciences 19 A Yuquan RdShijingshan DistrictBeijing 100049China Sonoma State University East Cotati AveRohnert ParkCA 94928USA

Aims Understanding the controls influencing tree growth is central to forest *** many factors such as tree size,neighborhood competition and environmental variables,have been proposed as being important in explaining patterns of tree growth,but their relative contributions are still subject to *** aimed to examine the relative importance of tree size,local abiotic conditions and the density and identity of neighbors on tree growth in an old-growth temperate forest in northeast *** We used linear mixed models with data from a 25 ha(500×500 m)broad-leaved Korean pine(Pinus koraiensis)mixed forest perma-nent plot to examine the relative importance of these local drivers on tree growth at three organizational levels(community,guild and species).Subplot was included as a random effect to account for spatial autocorrelation in growth of trees located within the same subplot,and species was included as a random effect to account for variation among species in *** findings Tree size was typically the most important predictor of growth,followed by neighborhood competition and then soil *** correlation of tree size to growth varied from strongly positive for large trees and medium trees to slightly positive for small *** effect of neighbor-hood competition on growth showed weak negative density dependence as indicated by slightly negative effect of total basal area of neighbors and the proportion of conspecific *** factors influenced growth of very common species,smaller tree-size classes and shade-tolerant *** concluded that the relative importance of variables driving patterns of tree growth varied greatly among tree size classes,shade tolerance and abundance classes in this temperate *** results provide critical information for future studies of forest dynamics and offer insight into forest management in this region.

关键词： forest dynamics plot habitat heterogeneity neighborhood effect old-growth Pinus koraiensis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

贵州罗甸干田坳晚二叠世生物礁基本特征研究

古生物学报 2017年第2期36卷 201-213页

作者：刘冬洋喻美艺 Daniel j Lehrmann 贵州大学资源与环境工程学院贵阳550025 Department of Geoscience Trinity University

通过综合岩相和生物群落特征对贵州罗甸干田坳晚二叠世生物礁进行分析,将研究区划分出三期造礁旋回。对造礁海绵在三个造礁阶段,以及礁前砾屑岩的成分面积进行统计,计算出各阶段的造礁成分组成状况,还原当时的造礁群落。共鉴定出纤维海... 详细信息

通过综合岩相和生物群落特征对贵州罗甸干田坳晚二叠世生物礁进行分析,将研究区划分出三期造礁旋回。对造礁海绵在三个造礁阶段,以及礁前砾屑岩的成分面积进行统计,计算出各阶段的造礁成分组成状况,还原当时的造礁群落。共鉴定出纤维海绵纲3科4属,房室海绵纲9科10属和硬海绵纲2科2属。数据表明自始至终纤维海绵纲的小领针海绵属都为造礁群落里的优势生物,其中S1阶段房室海绵纲的多囊腔海绵属种、叠瓦腔海绵属种和泡腔海绵属种为造礁主体;S2阶段小领针海绵和一纤维海绵未知属种为造礁主体,S3阶段房室海绵的多囊腔海绵占造礁主导地位。统计表明造礁海绵群团的分异度由S1至S3期降低明显。同时着重对本礁点主体的S2阶段骨架礁岩各个部分的结构特征进行细致分析,尤其是RfC的形成历史进行探讨,碳氧同位素测试得到的数据表明S2阶段古水温经历了高达16℃左右的波动,而RfC形成时的古水温为37.86℃,它是一种高温海水的反映;最后通过与南盘江盆地同期的紫云礁和茅口期的广西隆林礁进行对比,揭示它们的成礁模式和演化的异同。

关键词：骨架礁岩纤维海绵房室海绵造礁生物群落胶结物RfC 古水温

上/更新世动物群中人类与食肉动物“印记”的识别

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

人类学学报 2007年第2期26卷 183-192页

作者： Christopher j.NORTON 张双权张乐高星中国科学院古脊椎动物与古人类研究所中国科学院研究生院北京100039

从上/更新世的何时开始,人类的祖先能够成功地与食肉动物争夺大型的猎物资源?这是古人类学研究中的一个重要问题。本文从埋藏学的角度对这一问题进行了全面的回顾与总结。埋藏学研究是建立在现实研究和实验研究基础之上的,死亡年龄分布... 详细信息

从上/更新世的何时开始,人类的祖先能够成功地与食肉动物争夺大型的猎物资源?这是古人类学研究中的一个重要问题。本文从埋藏学的角度对这一问题进行了全面的回顾与总结。埋藏学研究是建立在现实研究和实验研究基础之上的,死亡年龄分布、骨骼单元分布、骨骼表面改造痕迹的相继引入逐渐丰富了这一学科的研究体系。

关键词：埋藏学狩猎与食腐现实研究和实验研究死亡年龄分布骨骼单元分布骨骼表面改造痕迹

Assemblage-based biomonitoring of freshwater ecosystem health via multimetric indices:A critical review and suggestions for improving their applicability

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Water Biology and Security 2022年第3期1卷 28-42页

作者： Robert L.Vadas jr. Robert M.Hughes Yeon jae Bae Min jeong Baek Orestes Carlos Bello Gonzáles Marcos Callisto Débora ReisdeCarvalho Kai Chen Maria T.ferreira Pablo fierro jon S.Harding Dana M.Infante C.j.Kleynhans Diego R.Macedo Isabela Martins Norman Mercado Silva Nabor Moya Susan j.Nichols Paulo S.Pompeu Renata Ruaro Deborah R.O.Silva R.jan Stevenson Bianca de freitas Terra Christa Thirion Douglas Ticiani Lizhu Wang Chris O.Yoder 2909 Boulevard Rd SEOlympiaWA98501-3971USA Amnis Opes Institute 2895 SE GlennCorvallisOR97333USA Department of fisheries Wildlife&Conservation SciencesOregon State UniversityCorvallisOR97331USA Division of Environmental Science&Ecological Engineering Korea University145 Anam-roSeongbuk-guSeoul02841South Korea National Institute of Biological Resources Ministry of Environment42 Hwangyeong-roSeo-guIncheon22689South Korea Centro de Investigacion en Biodiversidad y Conservacion Universidad Autonoma del Estado de Morelos1001Col.ChamilpaC.P62209CuernavacaMorelosMexico Departamento de Genética Ecologia e EvoluçaoInstituto de Ciências BiologicaUniversidade Federal de Minas GeraisAvenida Ant^onio Carlos 6627CEP31270-901Belo HorizonteMGBrazil Departamento de Ecologia e Conservaçao Universidade Federal de Lavras37200-900LavrasMGBrazil State Key Laboratory of Marine Resource Utiliization in South China Sea Hainan UniversityHaikou570228China forest Research Centre&Associate Laboratory TERRA University of LisbonTapada da Ajuda1349-017LisbonPortugal Instituto de Ciencias Marinas y Limnologicas Universidad Austral de ChileValdiviaChile School of Biological Sciences University of CanterburyPrivate Bag 4800Christchurch8140New Zealand Department of fisheries&Wildlife Michigan State University1405 South Harrison Road#318East LansingMI48823USA Department of Water Affairs and forestry(retired) 8th Avenue 771Wonderboom South0084PretoriaSouth Africa Departamento de Geografia Instituto de GeociênciasUniversidade Federal de Minas GeraisAvenida Antônio Carlos 6627CEP31270-901Belo HorizonteMGBrazil Instituto Guaicuy 109 Rua BrasopolisBelo HorizonteMG31150-170Brazil Centro de Investigación en Biodiversidad y Conservación Universidad Autónoma del Estado de MorelosAvenida Universidad 1001Col.ChamilpaC.P.62209CuernavacaMorelosMexico Instituto Experimental de Biología Universidad San Francisco Xavier de ChuquisacaSucreBolivia Centre for Applied Water Science Un

freshwater biota are more comprehensive and direct indicators of biological impacts,and more meaningful to the public than water quality or physical habitat *** biotic data and the multiple biological indicators developed from them offer a much richer array of data for assessing the impacts of pollution controls than a limited set of physical or chemical *** recent decades,assemblage-based assessments by ecologists,environmental scientists,and water quality agencies have been employed globally for determining the condition of,and threats to,freshwater ecosystems.A key step in this advance has been the development of multimetric indices(MMIs)or indices of biotic integrity(IBIs)based on quantitative assessments of algae,macrophyte,macroinvertebrate,fish or riparian bird *** Europe,where biological assemblages are mandated for assessing freshwater ecosystem health,many indices are ***,the proliferation of MMIs globally has not always occurred through the application of rigorous study designs and monitoring protocols,nor have they always effectively incorporated functional metrics,stressor assessments,and statistical ***,in this review,we discuss eleven major concerns with the development and application(including logistical limitations)of multimetric indicators based on freshwater biota to encourage more rigorous and widely applicable(transferable)MMI use and ***,our concerns focus on reference conditions;sampling effort,methods,and season;trophic guild definition;metric comprehensiveness,options,screening and scoring;and MMI *** could also benefit from increased attention to ecological mechanisms and metric development,to further improve our understanding of anthropogenic impacts as well as rehabilitation effects on freshwater ecosystems *** closer attention to study designs,ecological mechanisms and metric development should further improve our understa

关键词： IBI MMI fish Macroinvertebrates Algae Streams Rivers Lakes Wetlands Biological monitoring

fungalTraits:a user-friendly traits database of fungi and fungus-like stramenopiles

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

fungal Diversity 2020年第2期107卷 I0001-I0016页

作者： Sergei Põlme Kessy Abarenkov RHenrik Nilsson Björn D.Lindahl Karina Engelbrecht Clemmensen Havard Kauserud Nhu Nguyen Rasmus Kjøller Scott T.Bates Petr Baldrian Tobias Guldberg frøslev Kristjan Adojaan Alfredo Vizzini Ave Suija Donald Pfister Hans-Otto Baral Helle järv Hugo Madrid jenni Nordén jian-Kui Liu julia Pawlowska Kadri Põldmaa Kadri Pärtel Kadri Runnel Karen Hansen Karl-Henrik Larsson Kevin David Hyde Marcelo Sandoval-Denis Matthew E.Smith Merje Toome-Heller Nalin N.Wijayawardene Nelson Menolli jr Nicole K.Reynolds Rein Drenkhan Sajeewa S.N.Maharachchikumbura Tatiana B.Gibertoni Thomas Læssøe William Davis Yuri Tokarev Adriana Corrales Adriene Mayra Soares Ahto Agan Alexandre Reis Machado Andrés Argüelles-Moyao Andrew Detheridge Angelina de Meiras-Ottoni Annemieke Verbeken Arun Kumar Dutta Bao-Kai Cui C.K.Pradeep César Marín Daniel Stanton Daniyal Gohar Dhanushka N.Wanasinghe Eveli Otsing farzad Aslani Gareth W.Griffith Thorsten H.Lumbsch Hans-Peter Grossart Hossein Masigol Ina Timling Inga Hiiesalu jane Oja john Y.Kupagme józsef Geml julieta Alvarez-Manjarrez Kai Ilves Kaire Loit Kalev Adamson Kazuhide Nara Kati Küngas Keilor Rojas-jimenez Krišs Bitenieks Laszlo Irinyi LászlóGNagy Liina Soonvald Li-Wei Zhou Lysett Wagner M.Catherine Aime MaarjaÖpik María Isabel Mujica Martin Metsoja Martin Ryberg Martti Vasar Masao Murata Matthew PNelsen Michelle Cleary Milan C.Samarakoon Mingkwan Doilom Mohammad Bahram Niloufar Hagh-Doust Olesya Dulya Peter johnston Petr Kohout Qian Chen Qing Tian Rajasree Nandi Rasekh Amiri Rekhani Hansika Perera Renata dos Santos Chikowski Renato L.Mendes-Alvarenga Roberto Garibay-Orijel Robin Gielen Rungtiwa Phookamsak Ruvishika S.jayawardena Saleh Rahimlou Samantha C.Karunarathna Saowaluck Tibpromma Shawn P.Brown Siim-Kaarel Sepp Sunil Mundra Zhu-Hua Luo Tanay Bose Tanel Vahter Tarquin Netherway Teng Yang Tom May Torda Varga Wei Li Victor Rafael Matos Coimbra Virton Rodrigo Targino de Oliveira Vitor Xavier de Lima Vladimir S.Mikryukov Yongzhong Lu Yosuke Matsuda Yumiko Miyamoto Urm Institute of Ecology and Earth Sciences University of Tartu14A Ravila50411 TartuEstonia Natural History Museum University of Tartu46 Vanemuise Str51003 TartuEstonia Gothenburg Global Biodiversity Centre Box 46140530 GothenburgSweden Department of Biological and Environmental Sciences University of GothenburgGothenburgSweden Department of Soil and Environment Swedish University of Agricultural SciencesBox 701475007 UppsalaSweden Department of forest Mycology and Plant Pathology Swedish University of Agricultural SciencesBox 702675007 UppsalaSweden Section for Genetics and Evolutionary Biology(EvoGene) Department of BiosciencesUniversity of OsloP.O.Box 1066BlindernNO-0316 OsloNorway University of Hawaiʻi at Mānoa 3190 Maile WaySt.John 102HonoluluHIUSA Department of Biology University of CopenhagenUniversitetsparken 152100 CopenhagenØDenmark Purdue University Northwest WestvilleIN 46391USA Institute of Microbiology Czech Academy of SciencesVidenska 108314220 Praha 4Czech Republic GLOBE Institute University of CopenhagenØster Farimagsgade 5KH7.2.321353 CopenhagenDenmark Dipartimento di Scienze della Vita e Biologia dei Sistemi Universitàdi TorinoViale Mattioli 2510125 TorinoItaly Department of Organismic and Evolutionary Biology and farlow Library and Herbarium Harvard University22 Divinity AveCambridgeMA 02138USA Blaihofstr.42 72074 TübingenGermany SYNLAB Estonia Veerenni 53aTallinn 11313Estonia Escuela de Tecnología Médica Universidad Santo TomásLos Carreras 753OsornoChile Centro de Genómica y Bioinformática Universidad MayorCamino La Pirámide 5750HuechurabaSantiagoChile Norwegian Institute for Nature Research(NINA) Sognsveien 680855 OsloNorway School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China Evolutionary Biology Faculty of BiologyBiological and Chemical Research CentreUniversity of Warsawul.Zwirki i Wigury 10102-089 WarsawPoland Department of Botany Swedish Museum of

The cryptic lifestyle of most fungi necessitates molecular identification of the guild in environmental *** the past decades,rapid development and affordability of molecular tools have tremendously improved insights of the fungal diversity in all ecosystems and ***,in spite of the progress of molecular methods,knowledge about functional properties of the fungal taxa is vague and interpretation of environmental studies in an ecologically meaningful manner remains *** order to facilitate functional assignments and ecological interpretation of environmental studies we introduce a user friendly traits and character database fungalTraits operating at genus and species hypothesis *** the information from previous efforts such as fUNguild and funfun together with involvement of expert knowledge,we reannotated 10,210 and 151 fungal and Stramenopila genera,*** resulted in a stand-alone spreadsheet dataset covering 17 lifestyle related traits of fungal and Stramenopila genera,designed for rapid functional assignments of environmental *** order to assign the trait states to fungal species hypotheses,the scientific community of experts manually categorised and assigned available trait information to 697,413 fungal ITS *** the basis of those sequences we were able to summarise trait and host information into 92,623 fungal species hypotheses at 1%dissimilarity threshold.

关键词： fungal traits Trophic modes function guild Bioinformatics High-throughput sequencing Community ecology