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Male-driven reproductive and agonistic character displacement in darters and its implications for speciation in allopatry

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Current Zoology 2018年第1期64卷 101-113页

作者： Rachel L. MORAN Rebecca C. fuller school of Integrative Biology University of Illinois Champaign IL 61820 USA

selection against hybridization can cause mating traits to diverge between species in sympatry via reproductive character displacement （RCD）. Additionally, selection against interspecific fighting can cause aggressive traits to diverge between sympatric species via agonistic character displacement （ACD）. By directly affecting conspecific recognition traits, RCD and ACD between species can also incidentally cause divergence in mating and fighting traits among populations within a species [termed cascade RCD （CRCD） and cascade ACD]. Here, we demonstrate patterns consistent with male-driven RCD and ACD in 2 groups of darters （orangethroat darter clade Ceasia and rainbow darter Etheostoma caeruleum）. In both groups, males that occur in sympatry （between Ceasia and E. caeruleum） have higher levels of preference for mating and fighting with conspecifics over heterospecifics than do males from allopatry. This is consistent with RCD and ACD. We also found patterns consistent with CRCD and cascade ACD among species of Ceasia. Ceasia males that are sympatric to E. caeruleum （but allopatric to one another） also have heightened preferences for mat- ing and fighting with conspecific versus heterospecific Ceasia. In contrast, Ceasia males that are allopatric to E. caeruleum readily mate and fight with heterospecific Ceasia. We suggest that RCD and ACD between Ceasia and E. caeruleum has incidentally led to divergence in mating and fighting traits among Ceasia species. This study is unique in that male preferences evolve via both RCD （male preference for conspecific females） and ACD （male preference to fight conspecific males） which leads to subsequent divergence among allopatric lineages.

关键词： agonistic character displacement behavioral isolation cascade reinforcement reinforcement reproductive charac-ter displacement speciation.

Osteopontin: a leading candidate adhesion molecule for implantation in pigs and sheep

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Journal of Animal science and Biotechnology 2015年第2期6卷 177-190页

作者： Greg A Johnson Robert C Burghardt fuller W Bazer Department of Veterinary Integrative Biosciences Texas A&M UniversityCollege Station Department of Animal science Texas A&M UniversityCollege Station

Osteopontin （OPN; also known as secreted Phosphoprotein 1, sPP1） is a secreted extra-cellular matrix （ECM） protein that binds to a variety of cell surface integrins to stimulate cell-cell and cell-ECM adhesion and communication. It is generally accepted that OPN interacts with apically expressed integrin receptors on the uterine luminal epithelium （LE） and conceptus trophectoderm to attach the conceptus to the uterus for implantation. Research conducted with pigs and sheep has significantly advanced understanding of the role（s） of OPN during implantation through exploitation of the prolonged peri-implantation period of pregnancy when elongating conceptuses are free within the uterine lumen requiring extensive paracrine signaling between conceptus and endometrium. This is followed by a protracted and incremental attachment cascade of trophectoderm to uterine LE during implantation, and development of a true epitheliochorial or synepitheliochorial placenta exhibited by pigs and sheep, respectively. In pigs, implanting conceptuses secrete estrogens which induce the synthesis and secretion of OPN in adjacent uterine LE. OPN then binds to αvβ6 integrin receptors on trophectoderm, and the αvβ3 integrin receptors on uterine LE to bridge conceptus attachment to uterine LE for implantation. In sheep, implanting conceptuses secrete interferon tau that prolongs the lifespan of CL. Progesterone released by CL then induces OPN synthesis and secretion from the endometrial GE into the uterine lumen where OPN binds integrins expressed on trophectoderm （αvβ3） and uterine LE （identity of specific integrins unknown） to adhere the conceptus to the uterus for implantation. OPN binding to the αvβ3 integrin receptor on ovine trophectoderm cells induces in vitro focal adhesion assembly, a prerequisite for adhesion and migration of trophectoderm, through activation of： 1） P70s6K via crosstalk between FRAP1/MTOR and MAPK pathways; 2） MTOR, PI3K, MAPK3/MAPK1 （Erk1/2） and MAPK14 （p38） signalin

关键词： Implantation Integrins Psteoponti Pigs sheep

HDL signaling and protection against coronary artery atherosclerosis in mice

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The Journal of Biomedical Research 2016年第2期30卷 94-100页

作者： Bernardo L Trigatti Mark fuller Department of Biochemistry and Biomedical sciences McMaster University and Thrombosis and Atherosclerosis Research InstituteMcMaster University and Hamilton Health Sciences

Atherosclerosis is a leading underlying factor in cardiovascular disease and stroke,important causes of morbidity and mortality across the *** epidemiological studies demonstrate that high levels of high density lipoprotein（HDL） are associated with reduced risk of atherosclerosis and preclinical,animal model studies demonstrate that this association is *** the molecular mechanisms underlying the protective effects of HDL will allow more strategic approaches to development of HDL based *** evidence suggests that an important aspect of the ability of HDL to protect against atherosclerosis is its ability to trigger signaling responses in a variety of target cells including endothelial cells and macrophages in the vessel *** signaling responses require the HDL receptor,scavenger receptor class B type 1（sR-B1）,an adaptor protein（PDZK1） that binds to the cytosolic C terminus of sR-B1,Akt1 activation and（at least in endothelial cells） activation of endothelial NO synthase（eNOs）.Mouse models of atherosclerosis,exemplified by apolipoprotein E or low density lipoprotein receptor gene inactivated mice（apoE or LDLR KO） develop atherosclerosis in their aortas but appear generally resistant to coronary artery *** the other hand,inactivation of each of the components of HDL signaling（above）in either apoE or LDLR KO mice renders them susceptible to extensive coronary artery atherosclerosis suggesting that HDL signaling may play an important role in protection against coronary artery disease.

关键词： coronary artery disease high density lipoprotein myocardial infarction scavenger receptor class B type 1

stable isotope analysis of diet confirms niche separation of two sympatric species of Namib Desert lizard

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Integrative Zoology 2016年第1期11卷 60-75页

作者： Ian W.MURRAY Hilary M.LEAsE Robyn s.HETEM Duncan MITCHELL Andrea fuller stephan WOODBORNE Brain Function Research Group School of PhysiologyFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa Biology Department Whitman CollegeWalla WallaWashingtonUSA iThemba Laboratories GautengSouth Africa stable Isotope Laboratory Mammal Research InstituteDepartment of Zoology and EntomologyUniversity of PretoriaPretoriaSouth Africa

We used stable isotopes of carbon and nitrogen to study the trophic niche of two species of insectivorous lizards,the Husab sand lizard Pedioplanis husabensis and Bradfield’s Namib day gecko living sympatrically in the Namib *** measured theδ13C andδ15N ratios in lizard blood tissues with different turnover times(whole blood,red blood cells and plasma)to investigate lizard diet in different *** also measured theδ13C andδ15N ratios in available arthropod prey and plant tissues on the site,to identify the avenues of nutrient movement between lizards and their *** the use of stable isotope mixing models,we found that the two lizard species relied on a largely non-overlapping but seasonally variable array of arthropods:*** primarily fed on termites,beetles and wasps,while *** fed mainly on ants,wasps and *** originating from C3 plants were proportionally higher for *** than for *** during autumn and late autumn/early winter,although not *** to the few available data estimating the trophic transfer of nutrients in ectotherms in mixed C3 and C4/crassulacean acid metabolism(CAM)plant landscapes,we found that our lizard species primarily acquired nutrients that originated from C4/CAM *** work adds an important dimension to the general lack of studies using stable isotope analyses to estimate lizard niche partitioning and resource use.

关键词： Namib Desert niche partitioning Pedioplanis Rhoptropus stable isotopes

A perspective on sensory drive

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Current Zoology 2018年第4期64卷 465-470页

作者： Rebecca C. fuller John A. ENDLER Department of Animal Biology School of Integrative Biology University of Illinois at Urbana-Champaign Champaign IL 61820 USA Centre for Integrative Ecology School of Life and Environmental Sciences Deakin University Waurn Ponds VIC 3216 Australia

In 1992, The American Naturalist published a special supplement entitled：＂sensory Drive. Does sensory Drive Biology Bias or Constrain the Direction of Evolution？＂ organized by John Endler. The supplement contained a seminal paper on ＂sensory drive＂ by Endler （1992a） as well as several other well-cited papers on sensory exploitation （Ryan and Keddy-Hector 1992）.

关键词：开车博物学生物学报纸

ON DIsTRIBUTIVE MODULEs AND LOCALLY DIsTRIBUTIVE RINGs

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Chinese Annals of Mathematics,series B 1991年第1期12卷 26-32页

作者： K.R.fuller 薛卫民 Department of Mathematics University of Iowalowa CityIowaU.S.A. Department of Mathematics Fujian Normal UniversityFuzhouFujianChina.

Distributive modules over artinian rings are characterized via module diagrams,andit is shown that a left artinian ring is(two-sided)locally distributive in case its leftindecomposable injective modules and projective modules are *** latter resultis used to show that a locally distributive artinian ring and the endomorphism ring of itsminimal cogenerator have identical diagrams.

关键词： projective identical sided latter rings locally maximal 任尹 algebra indeed

Understanding Agricultural Heritage sites as Complex Adaptive systems: The Challenge of Complexity

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Journal of Resources and Ecology 2013年第3期4卷 195-201页

作者： Tony fuller 闵庆文中国农业大学人文与发展学院北京100094 中国科学院地理科学与资源研究所北京100101

In rural life,everything is connected to everything *** as a complex adaptive system,the ＂rural＂ in most regions of the world has evolved over many centuries and is well known to have endured invasive predations and conflicts and to have adapted to changing conditions,both physical and human,many *** changes are recorded in the culture and in the landscapes which have continuously evolved and which characterize rural places *** features of contemporary rural life-economy,culture and landscape-are the key elements of rural ***,they have also become the elements that attract tourists to rural *** theoretical paper,starts from the position that the rural world as a whole is complex and that systems adjust in the face of uncertainty,and a type of dynamism that is generated externally in the form of shocks and *** Adaptive systems theory provides an excellent opportunity to examine living systems such as Globally Important Agricultural Heritage systems （GIAHs） in China that can provide new perspectives on resilience and self-organizing capabilities of the *** paper suggests that adopting such approaches in contemporary research will produce new insights of whole systems and stem the tide of mainstream scientific research that reduces systems to their component parts and studies them with micro-techniques,while mostly failing to reintegrate the component parts back into the system as a *** reviewing this approach in relation to GIAHs and by introducing tourism into the rural village system,as a perturbation,we can create new ways to understand the effects of rural development interventions in ancient landscapes such as those which cover many parts of rural China today.

关键词： complex adaptive systems tourism villages holons theory perturbations

seasonal coolth storage system for residential buildings in Australia

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Journal of Central south University 2012年第3期19卷 740-747页

作者： T.Lhendup L.Aye R.J.fuller Renewable Energy and Energy Efficiency Group Department of Infrastructure EngineeringMelbourne School of EngineeringThe University of Melbourne

Night sky cooling is explored as an alternative to the conventional cooling technologies using fossil fuels. The night sky cooling method is based on the long wave radiation of unglazed collectors to the sky at night. An evaluation of the night sky cooling system is present for a residential building in three cities of Australia, namely Alice springs, Darwin and Melbourne. The system comprises an unglazed flat plate solar collector integrated with borehole storage. It uses night sky radiation to reduce the temperature of the ground near to the boreholes. The system was simulated with TRNsYs, a transient simulation program. The simulation results for adequately sized systems show that night sky radiation is able to reduce the coolth storage borehole temperature and the proposed system is able to meet the cooling load of the residential building simulated in three locations. Borchole lengths of 270, 318 and 106 m are required for coolth storage with 90, 260 and 14 m2 collector area for heat rejection in Alice springs, Darwin and Melbourne, respectively. At the 20th simulation year, the proposed system is able to achieve a system cooling coefficient of performance of 2.2 in Alice springs, and 2.8 in Darwin and Melbourne.

关键词： night sky cooling borehole coolth storage unglazed solar collectors

Authentic leadership and employees’job performance:mediation effect of positive employee health

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Journal of Management Analytics 2023年第3期10卷 566-582页

作者： Yan Liu Bryan fuller Kim Hester Hong Chen Indiana University East RichmondINUSA Louisiana Tech University RustonLAUSA Arkansas state University JonesboroARUSA

In light of global competition and the COVID-19 pandemic,organizations are encountering an increasingly challenging and unpredictable ***,employees are experiencing heightened levels of job *** study aims to explore the impact of various organizational mechanisms on promoting positive employee health within the organization,ultimately affecting employees’job *** findings of this study indicate that authentic leadership and the absence of organizational politics are significant predictors of positive employee ***,positive employee health has a positive influence on supervisor-rated job performance through its effect on job *** study serves as a valuable resource for organizations,shedding light on the fundamental factors that contribute to positive employee *** also raises managers’awareness of the importance of nurturing and sustaining employees’emotional and physical well-being to maintain competitiveness in the market.

关键词： Positive employee health job performance authentic leadership job engagement