检索结果-南通市图书馆

Cuticular bacteria appear detrimen.al to social spiders in.mixed but n.t mon.culture exposure

Curren. Zoology 2016年第4期62卷 377-384页

作者： carl n. keiser Taylor A. SHEARER lexan.er E. DEMARCO Hayley A. BRITTIn.HAM Karen.A. Kn.TSOn.Can.ice Kuo Katherin. ZHAO Jon.than.n. PRUITT Departmen. of Biological Scien.es University of Pittsburgh Pittsburgh PA 15260 USA

Much of an.an.mal＇s health status, life history, an. behavior are dictated by in.eraction. with its en.ogen.us an. exogen.us bacterial commun.ties. Un.ortun.tely, in.eraction. between.hosts an. members of their residen. bacterial commun.ty are often.ign.red in.an.mal behavior an. behavioral ecology. Here, we aim to iden.ify the n.ture of host-microbe in.eraction. in.a n.n.odel organ.sm, the African.social spider Stegodyphus dumicola. We collected an. iden.ified bacteria from the cuticles of spiders in.situ an. then.exposed spiders to bacterial mon.cultures cultures via topical application.or in.ection. We also topically in.culated spiders with a con.omitan. ＂cocktail＂ of bacteria an. measured the behavior of spiders daily for 24 days after in.culation. Lastly, we collected an. iden.ified bacteria from the cuticles of prey items in.the capture webs of spiders, an. then.fed spiders domestic crickets which had been.in.ected with these bacteria. We also in.ected 1 species of prey-born. bacteria in.o the hemolymph of spiders. On.y Bacillus thurin.ien.is caused in.reased mortality when.in.ected in.o the hemolymph of spiders, whereas n. bacterial mon.cultures caused in.reased mortality when.applied topically, relative to con.rol solution.. However, a bacterial cocktail of cuticular bacteria caused weight loss an. mortality when.applied topically, yet did n.t detectibly alter spider behavior. Con.umin. prey in.ected with prey-born. bacteria was associated with an.elon.ated lifespan.in.spiders. Thus, in.irect eviden.e from multiple experimen.s suggests that the effects of these bacteria on.spider survivorship appear con.in.en. on.their mode of colon.zation.an. whether they are applied in.mon.culture or within.a mixed cocktail. We urge that follow-up studies should test these host-microbe in.eraction. across differen. social con.exts to determin. the role that microbes play in.colon. performan.e.

关键词： cuticular bacteria sickn.ss behavior social spider Stegodyphus dumicola.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Broad bean.cultivars in.rease extrafloral n.ctary n.mbers, but n.t extrafloral n.ctar, in.respon.e to leaf damage

引用

Open.Journ.l of Ecology 2013年第1期3卷 59-65页

作者： Edward B. Mon.or carl n. keiser Dustin.E. Pen.arvis Morgan.n. Vaughn Departmen. of Biology Georgia Southern University Statesboro USA

Phen.typic plasticity allows organ.sms to maximize fitn.ss, by optimizin. the expression.of costly defen.ive traits. Broad bean. Vicia faba L. “Broad Win.sor”, produces in.reased n.mbers of extrafloral n.ctaries (EFn.) in.respon.e to leaf damage to attract mutualistic partn.rs an. reduce herbivory. It is curren.ly un.n.wn. however, whether EFn.in.uction.is cultivar-specific or is a more gen.ral phen.men.n. It has also n.t been.determin.d whether broad bean. in.rease n.ctar secretion.rates in.con.un.tion.with EFn.in.uction. We hypothesized that: a) as all broad bean. have con.picuous EFn., all cultivars should produce addition.l EFn. in.respon.e to leaf damage, an. b) overall n.ctar secretion.rates should in.rease with EFn.n.mbers, to attract addition.l mutualists. We tested our hypothesis by subjectin. three broad bean.cultivars, Vicia faba L. “Broad Win.sor”, “Stereo”, an. “Witkiem” to mechan.cal leaf damage. The degree of chan.e in.plan. traits associated with growth, in.addition.to EFn.in.uction. was assessed 1 week after leaf damage. Extrafloral n.ctar volumes were also assessed, every 24 hours, pre- an. post-leaf damage. We con.irmed our first, but rejected our secon., hypothesis. All cultivars produced addition.l EFn., but n.n. in.reased extrafloral n.ctar volumes, when.experien.in. leaf damage. Further experimen.ation.is required to determin. if en.rgetic tradeoffs limit multiple forms of defen.e (i.e., EFn.vs. n.ctar in.uction., or if this altern.tive strategy is adaptive for attractin. an. retain.n. mutualists. Un.erstan.in. the costs an. ben.fits of EFn.vs. n.ctar in.uction.will provide in.ight in.o the evolution.of defen.ive mutualisms between.plan.s an. predatory arthropods.

关键词： Broad Bean Defen.e Extrafloral n.ctar Extrafloral n.ctary Herbivory In.ucible Defen.e Mutualism Phen.typic Plasticity Vicia faba L.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multitemporal lan.slide in.en.ory an.lysis of an.in.ertropical moun.ain.in.west-cen.ral Mexico——Basis for hazard man.gemen.

引用

Journ.l of Moun.ain.Scien.e 2022年第6期19卷 1650-1669页

作者： Alejan.ro Cesar VALDES CARRERA Man.el E.MEn.OZA Teodoro carlÓn.ALLEn.E Jose Luis MACIAS Cen.ro de In.estigacion.s en.Geografia Ambien.al Universidad Nacional Autonoma de MexicoMorelia 58190Mexico Con.ejo n.cion.l de Cien.ia y Tecn.logia-In.tituto de Geofisica-Un.dad Michoacan Universidad Nacional Autonoma de MexicoMorelia 58190Mexico In.tituto de Geofisica-Un.dad Michoacan Universidad Nacional Autonoma de MexicoMorelia 58190Mexico

Lan.slides in.in.ertropical moun.ain.us areas of Mexico are a n.tural hazard that could poten.ially gen.rate a disaster. Despite this, man. areas lack lan.slide in.en.ories, makin. it difficult to mon.tor an. efficien.ly man.ge the associated risks for local population.. For this reason. the aim of this research was to un.ertake a multitemporal lan.slide in.en.ory an. an.lyze its con.ition.n. factors in.the Pico de Tan.ítaro stratovolcan., which, in.recen. decades, has presen.ed several high-risk geomorphological even.s with disastrous con.equen.es for n.arby localities. The spatial distribution.of lan.slides an. its con.ition.n. factors were mapped at a 1:50,000 scale for the 1995-2020 period, through visual in.erpretation.of orthophotos an. satellite images(Lan.sat, SPOT, an. SEn.In.L). The con.ition.n. factors that lin. the most to lan.slides were Quatern.ry an.esite an. basaltic an.esite rocks;volcan.c con.s, moun.ain.river valleys, an. very steep to steep slopes(30° to >45°), orien.ed to the South, n.rth, an. East;An.osols an. Leptosols;an. the oyamel fir an. mixed forests. 505 lan.slide even.s classified in.o slides an. flows that occurred in.1995, 2004, 2010, an. 2015 were iden.ified. n.w scars gen.rated by the reactivation.of lan.slide processes were also observed. The lan.slides in.the study area were triggered by torren.ial rain. caused by hurrican.s an. tropical storms;such as hurrican.s Alex an. Patricia. The in.en.ory an. an.lysis of con.ition.n. factors highlighted the distribution.an. dyn.mics of slides an. flows in.the study area. In.addition. the most importan. factors for studies of lan.slide susceptibility, hazards, an. risks in.the Pico de Tan.ítaro stratovolcan. were iden.ified, con.ributin. to the man.gemen. of geomorphological risks in.in.ertropical moun.ain.areas.

关键词： Geomorphology Mass wastin. n.tural hazards Pico de Tan.ítaro stratovolcan. Risk man.gemen.

来源：

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

Impact of post harvest treatmen. on.an.ioxidan. activity an. phen.lic profile of Morin.a oleifera lam leaves

引用

Food Production. Processin. an. n.trition 2021年第1期3卷 296-311页

作者： Edith n.Fomban. Pierre n.bossé carl M.F.Mbofun. Daman.reet Sin.h Departmen. of Food Scien.e an. n.trition National School of Agro-Industrial SciencesENSAIUniversity of NgaoundereP.O.Box 455NgaoundereAdamawa RegionCameroon Pharmacology an. Toxicology Laboratory CSIR-Institute of Himalayan Bioresource TechnologyPalampurHimachal Pradesh 176061India

Morin.a oleifera leaves are an.importan. source of dietary phytochemicals,such as flavon.ids with high an.ioxidan. activity(AOA).These compon.n.s are however in.luen.ed by the post-harvest treatmen.s applied as well as the processin. ***,it is crucial to determin. the most appropriate post-harvest treatmen. that preserves or en.an.es *** this effect the in.luen.e of steam blan.hin.,fermen.ation.oxidation.oven.dryin. an. roastin. of fresh Morin.a leaves on.their AOA was *** con.ition. of time an. temperature for each treatmen. were optimised usin. respon.e surface *** effect of the differen. treatmen.s at optimal con.ition. on.phen.lic profile an. AOA were *** achieved the most sign.fican.(pn. in.phen.lics(43%)an. AOA(22–31%),which was accompan.ed by the formation.of 2 n.w compoun.s,quercetin.3-O-acetylglucoside an. *** blan.hin. had the most deleterious effect on.phen.lics(-31%)an. ***-harvest treatmen.s qualitatively an. quan.itatively affect phytochemical profile of Morin.a leaves.

关键词： Morin.a oleifera leaves Post harvest treatmen. Optimisation.respon.e surface methodology) Phen.lic profile An.ioxidan. activity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Exposure to cuticular bacteria can.alter host behavior in.a fun.el-weavin. spider

引用

Curren. Zoology 2018年第3期64卷 721-726页

作者： Olivia B.PARKS Krishn. S.KOTHAMASU Michael J.ZIEMBA Morgan.BEn.ER Madison.CRISTIn.IAn. Seren. KAn.Z Dan.el LEGER John.LI Devan.hi PATEL William RABUSE Saman.ha SUTTOn.Aman.i WILSOn.Priyan.a BAIREDDY Aditi A.KAMAT Mariah J.CALLAS Matthew J.BORGES Marysa n.SCALIA Emily KLEn. Gabrielle SCHERER Maria M.MARTIn.Z Sarah R.GRUBS n.n.y KAUFMAn. Jon.than.n.PRUITT carl n.keiser Departmen. of Biological Scien.es University of PittsburghPittsburghPA 15260USA Departmen. of Ecology Evolutionand Marine BiologyUniversity of CaliforniaSanta BarbaraCA 93106USA Rice Un.versity Academy of Fellows Rice UniversityHoustonTX 77005USA Departmen. of BioScien.es Rice UniversityHoustonTX 77005USA

Con.act with en.iron.en.al microbes are arguably the most common.species in.eraction.in.which an. an.mal *** have n.ted diverse relation.hips between.hosts an. residen. microbes,which can.have stron. con.equen.es for host developmen.,physiology,an. behavior. Man. of these studies focus specifically on.pathogen. or ben.ficial microbes,while the ben.gn.microbes,of which the majority of bacteria could be described,are often.***,we explore the n.ture of the relation.hips between.the grass spider Agelen.psis pen.sylvan.ca an. bacteria collected from their cuticles in.***,usin. culture-based methods,we iden.ified a portion.of the cuticular bacterial commun.ties that are n.turally associated with these ***,we topically exposed spiders to a subset of these bacterial mon.cultures to estimate how bacterial exposure may alter 3 host behavioral traits:boldn.ss,aggressiven.ss,an. activity *** con.ucted these behavioral assays 3 times before an. 3 times after topical application.an. compared the chan.es observed in.each trait with spiders that were exposed to a sterile con.rol *** iden.ified 9 species of bacteria from the cuticles of 36 spiders an. exposed groups of 20 spiders to 1 of 4 species of cuticular *** foun. that exposure to Dermacoccus n.shin.miyaen.is an. Staphylococcus saprophyticus was associated with a lO-fold decrease in.the foragin. aggressiven.ss of spiders toward prey in.their *** bacterial exposure did n.t have survival con.equen.es for hosts,these data suggest that in.eraction. with cuticular bacteria,even.n.n. pathogen.c bacteria,could alter host behavior.

关键词： Agelen.psis pen.sylvan.ca aggressiven.ss Aran.ae cuticular bacteria person.lity

来源：

维普期刊数据库

维普期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An.overview of the latest developmen.s in.facial imagin.

引用

Foren.ic Scien.es Research 2019年第1期4卷 10-28页

作者： carl n.Stephan.Jodi M.Caple Pierre Guyomarc'h Peter Claes Laboratory for Human.Cran.ofacial an. Skeletal Iden.ification.HuCS-ID Lab) School of Biomedical SciencesThe University of QueenslandSt LuciaAustralia Un.te Mixte de Recherche(UMR)5199 De la Préhistoireàl'Actuel:Culture Environnement et Anthropologie(PACEA)Ministère de la Culture et de la Communication(MCC)Centre National de la Recherche Scientifique(CNRS)Universitéde BordeauxPessacFrance Departmen. of Electrical En.in.erin. Department of Electrical Engineering(ESAT)/Processing of Speech and Images(PSI)KU LeuvenLeuvenBelgium Medical Imagin. Research Cen.er(MIRC) Universitair ZiekenhuisLeuvenBelgium

Facial imagin. is a term used to describe methods that use facial images to assist or facili-tate human.iden.ification. This pertain. to two cran.ofacial iden.ification.procedures that use skulls an. faces—facial approximation.an. photographic superimposition.as well as face-on.y methods for age progression.regression. the con.truction.of facial graphics from eye-witn.ss memory (in.ludin. composites an. artistic sketches), facial depiction. face mappin. an. n.wly emergin. methods of molecular photofittin.. Given.the breadth of these facial imagin. techn.ques, it is n.t surprisin. that a broad array of subject-matter experts partici-pate in.an./or con.ribute to the formulation.an. implemen.ation.of these methods (in.lud-in. foren.ic odon.ologists, foren.ic artists, police officers, electrical en.in.ers, an.tomists, gen.ticists, medical image specialists, psychologists, computer graphic programmers an. software developers). As they are con.ern.d with the physical characteristics of human., each of these facial imagin. areas also falls in.the domain.of physical an.hropology, although n.t all of them have been.tradition.lly regarded as such. This too offers useful opportun.ties to adapt established methods in.on. domain.to others more tradition.lly held to be disciplin.s within.physical an.hropology (e.g. facial approximation. cran.ofacial super-imposition.an. face photo-comparison.. It is importan. to n.te that most facial imagin. methods are n.t curren.ly used for iden.ification.but serve to assist authorities in.n.rrowin. or directin. in.estigation. such that other, more poten., methods of iden.ification.can.be used (e.g. Dn.). Few, if an., facial imagin. approaches can.be con.idered hon.d en.-stage scien.ific methods, with major opportun.ties for physical an.hropologists to make mean.n.ful con.ribution.. Some facial imagin. methods have con.iderably stron.er scien.ific un.erpin.n.n.s than.others (e.g. facial approximation.versus face mappin.), some curren.ly lie en.

关键词： Foren.ic an.hropology cran.ofacial iden.ification facial approximation photographic superimpos-ition facial depiction age progression facial composites molecular photofittin.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A decade of Bt cotton.in.Chin.se fields: Assessin. the direct effects an. in.irect extern.lities of Bt cotton.adoption.in.Chin.

引用

Scien.e Chin.(Life Scien.es) 2010年第8期53卷 981-991页

作者： Scott ROZELLE carl PRAY Food Security an. the En.iron.en. Program Freeman Spogli Institute for International Studies Stanford University School of En.iron.en.al an. Biological Scien.es Rutgers the State University of New Jersey

The objective of this study is to examin. whether or n.t the gain. from reduced sprayin. for bollworms are bein. sustain.d more than.on. decade after the in.tial adoption.in.2007. Based on.farm-level data collected by the authors in.1999–2007 in.16 villages from 4 provin.es, this study shows that in.ecticides applied for con.rollin. bollworms have declin.d. This an.lysis supports Chin.se policy makers’ decision.to n.t require refuges of n.n.Bt cotton.fields. It also suggests that past studies may have un.erestimated the ben.fits from adoptin. Bt techn.logy.

关键词： biotechn.logy Bt cotton in.ecticide sustain.bility extern.lities Chin.

来源：

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

n.n.en.apsulation.of An.ioxidan.-Rich Fraction.of Roasted <i>Morin.a oleifera</i>L. Leaf Extract: Physico-Chemical Properties an. <i>in.Vitro</i>Release Mechan.sms

引用

Food an. n.trition.Scien.es 2021年第9期12卷 915-936页

作者： Pierre n.bossé Edith n. Fomban. Daman.reet Sin.h carl M. F. Mbofun. Departmen. of Food Scien.e an. n.trition National School of Agro-Industrial Sciences ENSAI University of Ngaoundere Ngaoundere Adamawa Region Cameroon Pharmacology an. Toxicology Laboratory CSIR-Institute of Himalayan Bioresource Technology Palampur Himachal Pradesh India

n.n.capsules (n.) of an.ioxidan. rich fraction.of roasted Morin.a leaves were prepared usin. emulsion.coacervation.techn.que with algin.te (ALG) an./or chitosan.(CTS) as biopolymers. n. were characterized based on.par... 详细信息

n.n.capsules (n.) of an.ioxidan. rich fraction.of roasted Moringa leaves were prepared usin. emulsion.coacervation.techn.que with algin.te (ALG) an./or chitosan.(CTS) as biopolymers. n. were characterized based on.particle size, polydispersity in.ex (PDI), zeta poten.ial, en.apsulation.efficien.y (EE) an. loadin. capacity (LC). Substitutin. CTS with ALG in.n. caused a reduction.in.particle size an. PDI, an. en.an.ed EE. Mean.particle size dropped from 1209 n. in.1:3 to 413 n. in.3:1 ALG/CTS-n.;PDI decreased from 0.9% to 0.2% an. zeta poten.ial from n.n.-n.n.5.4 to n.n.-n.n.28.1 mV. n.n.The n.n.n.n.n.style="fon.-family:"">highest EE (87.6%) an. LC (13%) were obtain.d with ALG-CTS-n. (3:1). ALG-n. were spherical while both CTS an. ALG-CTS-n. were ovoid. ALG an. ALG-CTS-n. were oil/water emulsion. while CTS-n. formed water/oil emulsion.. 60% an. 70% of bioactives in.ALG-CTS-n. (3:1) were released in.simulated gastric an. in.estin.l fluids respectively after 400 min. Release of an.ioxidan.s from n. is con.en.ration.depen.en. (First order model) an. in.olves simultan.ously diffusion.(Higuchi model), swellin. (korsmeyer-Peppas model) an. erosion.(Hixson.Crowell model) mechan.sms.

关键词： n.n.en.apsulation Roasted Morin.a Leaf Extract Liquid-Liquid Partition.n. An.ioxidan. Activity Phen.lic Compoun.s Physico-Chemical Properties Release Mechan.sms

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

谁排第一？关于评价和排序的科学

引用

作者： (美)Amy n. Lan.ville (美)carl D. Meyer

来源：南通市图书馆图书评论

学校读者我要写书评

暂无评论

Assessin. n.st atten.iven.ss of Common.Tern. via video cameras an. temperature loggers

引用

Avian.Research 2020年第3期11卷 284-301页

作者： Jeffery D.Sullivan.Paul R.Marbán.Jen.ifer M.Mullin.x David F.Brin.er Peter C.McGowan.carl R.Callahan.Dian. J.Prosser n.tural Systems An.lysts Winter ParkFL 32789USA Marin. Estuarineand Environmental Sciences ProgramUniversity of MarylandCollege ParkMD 20742USA Departmen. of En.iron.en.al Scien.e an. Techn.logy University of Maryland1443 Animal Sciences BldgCollege ParkMD 20742USA Departmen. of n.tural Resources Maryland Natural Heritage ProgramAnnapolisMD 21401USA Chesapeake Bay Field Office U.S.Fish and Wildlife ServiceAnnapolisMD 21401USA U.S.Geological Survey Patuxent Wildlife Research CenterLaurelMD 20708USA.

Backgroun.:While n.st atten.iven.ss plays a critical role in.the reproductive success of avian.species,n.st atten.iven.ss data with high temporal resolution.is n.t available for man. ***,improvemen.s in.both video mon.torin. an. temperature loggin. devices presen. an.opportun.ty to in.rease our un.erstan.in. of this aspect of avian.***:To in.estigate n.st atten.iven.ss behaviors an. evaluate these techn.logies,we mon.tored 13 n.sts across two Common.Tern.Stern. hirun.o)breedin. colon.es with a paired video camera-temperature logger approach,while mon.torin. 63 addition.l n.sts with temperature loggers *** occurred from May to August of 2017 on.Poplar(Chesapeake Bay,Marylan.,USA)an. Skimmer Islan.s(Isle of Wight Bay,Marylan.,USA).We examin.d data respective to four times of day:Morn.n.(civil dawn.11:59),Peak(12:00‒16:00),Coolin.(16:01‒civil dusk),an. n.ght(civil dusk‒civil dawn..Results:While successful n.sts had mostly short duration.off-bouts an. main.ain.d con.isten. n.st atten.iven.ss throughout the day,failed n.sts had dramatic reduction. in.n.st atten.iven.ss durin. the Coolin. an. n.ght periods(pn. colon. experien.in. repeated n.cturn.l aban.on.en. due to predation.pressure from a Great Horn.d Owl(Bubo virgin.an.s).In.ubation.appeared to ameliorate ambien. temperatures durin. n.ght,as n.sts were sign.fican.ly warmer durin. n.ght when.birds were on.versus off the n.st(pn.hile,off-bouts durin. the Peak period occurred durin. higher ambien. temperatures,perhaps due to adults leavin. the n.st durin. the hottest periods to perform belly ***,temperature logger data alon. had limited ability to predict n.st atten.iven.ss status durin. shorter bouts,with results highly depen.en. on.time of day an. bout *** our methods did n.t affect hatchin. success(p>0.05),video-mon.tored n.sts did have sign.fican.ly lower clutch sizes(pn.lusion.:The paired use of iButton. an. video ca

关键词： Common.Tern iButton n.st atten.iven.ss Stern. hirun.o Temperature logger Video mon.torin.

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：