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Manipulation of parasite load induces significant changes in the structural-based throat color of male iberian green lizards

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Current Zoology 2018年第3期64卷 293-302页

作者： rodrigo megia-palma Javier MARTiNEZ Santiago MERINO Dept Ecologia Evolutiva Museo Nacional de Ciencias Naturales-CSIC J. Gutierrez Abascal 2 E-28006 Madrid Spain Area Parasitologia Dept Biomedicina y Biotecnologia Area de Parasitologia. Facultad de Farmacia Universidad de Alcala de Henares Alcala de Henares E-28871 Madrid Spain

The honesty of structural-based ornaments is controversial. Sexual selection theory predicts that the honesty of a sexual signal relies on its cost of production or maintenance. Therefore, environmental factors with negative impact on individuals could generate high costs and affect the expres- sion of these sexual signals. In this sense, parasites are a main cost for their hosts. To probe the effect of parasites on the structural-based coloration of a lacertid species Lacerta schreiberi, we have experimentally removed ticks from a group of male Iberian green lizards using an acaricide treatment （i.e., the broad-use insecticide fipronil）. All individuals were radio-tracked and recaptured after 15 days to study changes in coloration in both the ultraviolet （UV）-blue （structural-based） and UV-yellow （structural and pigment-based） ornamentations after manipulation, as well as changes in endoand ectoparasitic load and body condition. Additionally, after the experiment, we measured the skin inflammatory response to a mitogen. The fipronil treatment was effective in reducing ticks and it was associated with a significant reduction of hemoparasite load. Throughout the season, individuals treated with fipronil tended to maintain the brightness of the UV-blue throat coloration while control lizards tended to increase it. However, individuals treated with fipronil that were not infected with hemoparasites significantly reduced the brightness of the UV-blue throat color ation. Individuals with a higher initial tick load exhibited a lower UV saturation increment （UV-blue） and a higher brightness increment （UV-yellow） during the experiment. Overall these results experimentally support the idea that parasites adversely influence the expression of the structural-based coloration of male Iberian green lizards. This adds evidence to the hypothesis that sexual ornaments in lizards function as honest signals.

关键词： animal communication ectoparasites Hamilton & Zuk structural-coloration.

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Natural parasites in conjunction with behavioral and color traits explain male agonistic behaviors in a lizard

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Current Zoology 2024年第1期70卷 59-69页

作者： rodrigo megia-palma Dhanashree Paranjpe Robert D.Cooper Pauline Blaimont Barry Sinervo Department of Biomedicine and Biotechnology Parasitology UnitUniversidad de Alcala(UAH)E-28805Alcala de HenaresSpain CIBio Centro de Investigagao em Biodiversidade e Recursos GeneticosInBIO Laboratorio AssociadoCampus de VairaoUniversidade do PortoP-4485-661 VairaoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de VairaoP-4485-661 VairaoPortugal Rupa Rahul Bajaj Center for Environment and Art Empress Botanical GardensKavade MalaPuneIndia Department of Ecology and Evolutionary Biology University of CaliforniaLos AngelesCA 90095USA Department of Biology University of Houston Downtown1Main St.HoustonTX 77002USA Department of Ecology and Evolutionary Biology University of CaliforniaSanta CruzCA 95064USA

Male competition conforms to a cost-benefit model,because while aggression may increase reproductive prospects,it can also increase the risk of *** hypothesize that an additional cost in aggressive males would be an increase in parasite load associated with a high energy investment into sexual *** of these infections,in turn,may downmodulate the level of host aggression via energetic *** staged dyadic male contests in the lab to investigate the relationships of multiple parasites with the agonistic behavior of lizard hosts,Sceloporus *** also included both color and behavioral traits from opponents in the analyses because(1)color patches of lizards may serve as intraspecific signals used by conspecifics to assess the quality of opponents,and(2)contests between male lizards fit classical models of escalated aggression,where lizards increase aggression displays in response to an opponent's *** results conform to our hypothesis because male lizards displayed more pushups when they had more ***,some parasites may modulate the levels of aggression because lizards infected by hematic coccidians performed fewer ***,lizards also displayed fewer pushups when both the chroma and size of the opponent's blue patch were *** results thus also supported the role of the blue patch of *** as a sexual armament,because it contributed to the deterrence of aggression from opponent *** revealed that natural parasitic infections in lizard hosts can contribute to their agonistic *** encourage future studies to account for parasites in behavioral testswithlizards.

关键词： Ixodes pacificus Lankesterella sexual selection social interactions ticks

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Multiple color patches and parasites in Sceloporus occidentalis:differential relationships by sex and infection

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Current Zoology 2018年第6期64卷 703-711页

作者： rodrigo megia-palma Dhanashree PARANJPE Senda REGUERA Javier MARTINEZ Robert D COOPER Pauline BLAIMONT Santiago MERINO Barry SINERVO Department of Ecologia Evolutiva Museo Nacional de Ciencias Naturales-CSICJose Gutierrez Abascal 2.Madrid E-28006Spain Departrnent of Ecology and Evolutionary Biology University of CaliforniaSanta Cruz1156High StSanta CruzCA 95064USA Department of Zoologia Facultad de CienciasUniversidad de GranadaGranada E-18071Spain Area Parasitologia Department of Biomedicina y BiotecnologiaArea de ParasitologiaFacultad de FarmaciaUniversidad de Alcala de HenaresAlcala de HenaresMadrid E-28871Spain

Parasites generally have a negative influence on the color expression of their *** selection theory predicts resistant high-quality individuals should show intense coloration,whereas susceptible low-quality individuals would show poor ***,intensely colored males of different species of Oid and New World lizards were more often infected by *** results suggest that high-quality males,with intense coloration,would suffer higher susceptibility to *** hypothesis remains poorly understood and contradicts general theories on sexual *** surveyed a population of Sceloporus occidentalis for parasites and found infections by the parasite genera Lankesterella and *** this population,both males and females express ventral blue and yellow color *** was almost exclusively infecting *** body size of the males significantly predicted the coloration of both blue and yellow *** males showed darker (lower lightness)blue ventral patches and more saturated yellow patches that were also ***,these males were more often infected by Lankesterella than smaller *** intestinal parasite Acroeimeria infected both males and *** infection by intestinal parasites of the genus Acroeimeria was the best predictor for the chroma in the blue patch of the males and for hue in the yellow patch of the *** males infected by Acroeimeria expressed blue patches with significantly lower chroma than the uninfected ***,the hue of the yellow patch was not significantly different between infected and uninfected *** results suggest a different effect of Lankesterella and Acroeimeria on the *** the one hand,the intense coloration of male lizards infected by Lankesterella suggested high-quality male lizards may tolerate *** the other hand,the low chroma of the blue coloration of the infected males suggested that this coloration could honest

关键词： animal communication coloration Hamilton and Zuk parasites sexual selection

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Opposed elevational variation in prevalence and intensity of endoparasites and their vectors in a lizard

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Current Zoology 2018年第2期64卷 197-204页

作者： Lola ALVAREZ-RUIZ rodrigo megia-palma Senda REGUERA Santiago Rulz Francisco J. ZAMORA-CAMACHO Jordi FIGUEROLA Gregorio MORENO-RUEDA Centro de Investigaciones sobre Desertificacion-CSIC Ctra. Naquera Kin. 4.5 Moncada Valencia E-46113 Spain Departarnento de Ecologia Evolutiva Museo Nacional de Ciencias Naturales-CSIC c/Jose Gutierrez Abascal Madrid E-28006 Spain Unit of Ethology and Animal Welfare Faculty of Veterinary University CEU Cardenal Herrera Alfara del Patriarca (Valencia) E-46113 Spain Servicio de Control de Mosquitos DiputaciGn Provincial de Huelva Centro de InvestigaciGn Biornedica en Red Epidemiologia y Salud Publica (CIBERESP) Huelva Spain CIBER de Epidemiologia y Salud Peblica (CIBERESP) Spain Departamento de Biogeografia y Carnbio Global Museo Nacional de Ciencias Naturales-CSIC C/Jose Gutierrez Abascal 2 Madrid E-28006 Spain Departarnento de Ecologia de Hurnedales Estacion Biologica de Dofiana-CSIC c/Americo Vespucio s/n Sevilla E-41092 Spain Departamento de Zoologia Facultad de Ciencias Universidad de Granada Granada E-18071 Spain

Studying the causes of parasite geographic distribution is relevant to understand ecological and evolutionary processes that affect host populations as well as for species conservation. Temperature is one of the most important environmental variables affecting parasite distribution, as raising temperatures positively affect development, reproduction, and rate of transmission of both endo- and ectoparasites. In this context, it is generally accepted that, in mountains, parasite abundance decreases with elevation. However, empirical evidence on this topic is limited. In the present study, we analyzed the elevational variation of hemoparasites and ectoparasites of a lizard, Psammodromus algirus, along a 2,200-m elevational gradient in Sierra Nevada （SE Spain）. As pre- dicted, ectoparasite （mites, ticks, mosquitoes, and sandflies） abundance decreased with elevation. However, hemoparasite prevalence and intensity in the lizard augmented with altitude, showing a pattern contrary to their vectors （mites）. We suggest that tolerance to hemoparasites may increase with elevation as a consequence of lizards at high altitudes taking advantage of increased body condition and food availability, and reduced oxidative stress. Moreover, lizards could have been selected for higher resistance against hemoparasites at lowlands （where higher rates of replication are expected）, thus reducing hemoparasite prevalence and load. Our findings imply that, in a scen- ario of climate warming, populations of lizards at high elevation may face increased abundance of ectoparasites, accompanied with strong negative effects.

关键词： elevation immune system parasite distribution Psammodromus algirus reptile

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Synthetic Time Series Generation Model for Analysis of Power System Operation and Expansion with High Renewable Energy Penetration

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Journal of Modern Power Systems and Clean Energy 2021年第4期9卷 849-858页

作者： rodrigo palma-Behnke Jorge Vega-Herrera Felipe Valencia Oscar Nunez-Mata Energy Center Department of Electrical EngineeringFaculty of Mathematical and Physical SciencesUniversity of ChileSantiagoChile Department of Electrical Engineering University of AntofagastaAntofagastaChile School of Electrical Engineering University of Costa RicaSan PedroCosta Rica

The increasing integration of renewable energy sources into current power systems has posed the challenge of adequately representing the statistical properties associated with their variable power generation. In this paper, a novel procedure is proposed to select a proper synthetic time series generation model for renewable energy sources to analyze power system problems. The procedure takes advantage of the objective of the specific analysis to be performed and the statistical characteristics of the available time series. The aim is to determine the suitable model to be used for generating synthetic time series of renewable energy sources. A set of indicators is proposed to verify that the statistical properties of synthetic time series fit the statistical properties of the original data. The proposal can be integrated into systematic tools available for data analysis without compromising the representation of the statistical properties of the original time series. The procedure is tested using real data from the New Zealand power system in a mid-term analysis on integrating wind power plants into the power system. The results show that the proposed procedure reduces the error obtained in analyzing power systems compared with reference models.

关键词： Time series analysis renewable energy source solar energy stochastic process statistical analysis wind energy

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Thermoregulatory function and sexual dimorphism of the throat sack in Helmeted Guineafowl(Numida meleagris)across Africa

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Avian Research 2022年第3期13卷 239-248页

作者： Johann H.Van Niekerk rodrigo Megía-palma Giovanni Forcina Department of Environmental Sciences College of Agriculture and Environmental SciencesUniversity of South AfricaP.O.Box 392Pretoria0003South Africa Universidad de Alcal a(UAH) Department of Biomedicine and BiotechnologySchool of PharmacyA-2 Highwaykm 33.60028805Alcal a de HenaresMadridSpain Universidad de Alcal a(UAH) Global Change Ecology and Evolution Research Group(GloCEE)Departamento de Ciencias de la Vida28805Alcal a de HenaresMadridSpain CIBIO Centro de Investigaç~ao em Biodiversidade e Recursos Gen eticosInBIO Laborat orio AssociadoCampus de Vair~aoUniversidade do Porto4485-661Vair~aoPortugal BIOPOLIS Program in Genomics Biodiversity and Land PlanningCIBIOCampus de Vair~ao4485-661Vair~aoPortugal

The responses of ground-dwelling birds to heat and cold stress encompass a variety of behavioural,physiological and even morphological ***,the role of glabrous skin in this respect has been marginally addressed so *** Helmeted Guineafowl(Numida meleagris)is a landfowl distributed across Sub-Saharan Africa with eight traditionally recognised extant *** the most prominent morphological traits underlying intraspecific variability are size and pigmentation of the bare throat skin(or sack),which might be related to the different habitats and environmental conditions across its wide *** order to explore the Helmeted Guineafowl range-wide sack variation and pigmentation in relation to thermoregulation and sexual signalling,we collected morphometric and environmental information for *** integrating field data with the inspection of photographic material encompassing seven subspecies and environmental information from their *** data evidenced that sack size was significantly correlated with ambient temperature,thus pointing to a likely involvement of the throat sack in *** the pictorial data from all subspecies were pooled,sack size correlated negatively with biomass,rainfall and humidity,while a positive correlation was found with annual solar *** size correlated positively with monthly temperature variation among the bluethroated subspecies from southern Africa as opposed to the black-throated subspecies ranging north to Zambia and ***,in this latter group the sack was often larger during winter months,possibly to maximise solar radiation ***,sack size was related to sex dimorphism in two *** morphology and colour in the Helmeted Guineafowl likely modulate body temperature by evaporative cooling or heating upon needs,but in some subspecies it is also seemingly related to sexual *** studies are needed to fully understand the mu

关键词： Evaporative cooling Helmeted guineafowl Sexual size dimorphism Sub-Saharan Africa Thermoregulation Throat sack

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Analysis for integrated energy system:Benchmarking methods and implementation

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Energy Internet 2024年第1期1卷 63-80页

作者： Suhan Zhang Wei Gu X.-P.Zhang CYChung Ruizhi Yu Shuai Lu rodrigo palma‐Behnke School of Electrical Engineering Southeast UniversityNanjingJiangsuChina Department of Electronic Electrical and SystemsUniversity of BirminghamBirminghamUK Department of Electrical and Electronic Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Department of Electrical Engineering Energy CenterUniversity of ChileSantiagoChile

The selection of suitable models and solutions is a fundamental requirement for con-ducting energy flow analysis in integrated energy systems(IES).However,this task is challenging due to the vast number of existing models and solutions,making it difficult to comprehensively compare scholars'studies with current *** this paper,we aim to address this issue by presenting a comprehensive overview of mainstream IES models and clarifying their relationships,thereby providing guidance for scholars in selecting appro-priate ***,we introduce several widely used solvers for solving algebraic and differential equations,along with their detailed implementations in the energy flow analysis of ***,we conduct extensive testing and demonstration of these models and methods in various cases to establish benchmarking *** facilitate reproducibility,verification and comparisons,we provide open‐source access to these datasets,including system data,analysis settings and implementations of the various solvers in the mainstream *** can utilise the provided datasets to reproduce the results,verify the findings and perform comparative ***,they have the flexibility to customise these settings according to their specific requirements.

关键词： benchmarking method energy flow analysis integrated energy system mainstream model open‐source data

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Fundamentals of the Use of Ozone Therapy in the Treatment of Aesthetic Disorders: A Review

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Journal of Biosciences and Medicines 2021年第12期9卷 40-70页

作者： Fábio dos Santos Borges Patricia Froes Meyer rodrigo Soliva Jahara Eneida de Morais Carreiro Pietro Antônio Antonuzzo Felice Picariello Cesare Di palma Estácio de Sá University Rio de Janeiro Brazil University Center of Rio Grande do Norte (UNIRN) Natal Brazil Gama Filho University (UGF) Rio de Janeiro Brazil Smart Clinic Policlinico San Donato E Wellness Clinic Palazzo Della Salute—Gruppo San Donato Milan Italy Università degli Studi di Napoli Federico II Napoli Italy Ospedale A. Cardarelli di Napoli Napoli Italy

Considering the great interest of many professionals in the foundation that guides the effective use of ozone therapy in the treatment of aesthetic disorders, this study aims to define the physiological and practical aspects of using the oxygen-ozone mixture to solve aesthetic problems. Exploratory research was carried out, presented in a narrative review, to highlight the action of ozone therapy in the treatment of aesthetic affections. The review explored scientific articles, books, theses, and dissertations published and available in the following databases: MEDLINE (Medical Literature Analysis and Retrieval System Online), PubMed (National Library of Medicine), SCIELO (Scientific Electronic Library Online), and LILACS (Latin Literature American and the Caribbean in Health Sciences). In addition, elements that characterize the authors’ clinical experience on ozone therapy in various aesthetic treatment protocols were added. We found several reports in the literature that justify the use of ozone and its different therapeutic modalities in various aesthetic affections, mainly in the treatment of localized fat, cellulite, rejuvenation, skin tissue repair, acne, dyschromia, and others. Through its various therapeutic modalities, we conclude that ozone therapy has added a lot to aesthetic procedures, mainly for its effective supporting action or as the main agent of critical physiological changes to enhance clinical results when treating aesthetic conditions.

关键词： Ozone Ozone Therapy Celulite Rejuvenation Acne

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Directed Genetic Algorithms for OTFT Model Parameter Extraction

Directed Genetic Algorithms for OTFT Model Parameter Extract...

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2008 9th International Conference on Solid-State and Integrated-Circuit Technology

作者： Eugenio Garcia-Moreno Benjamin Iiguez rodrigo Picos GTE University of Balearic IslandsPalma 07122Spain DEEEA University Rovira i VirgiliTarragona 43007Spain

An improvement on the parameter extraction technique for compact device models based on Genetic algorithms is presented. The use of fuzzy logic based rules to direct the evolution of the genetic algorithm enhances the convergence and the physical meaning of the parameters is preserved. Another advantage of this method is that the fuzzy rules can be applied just to a reduced set of model parameters. The parameter extraction procedure is applied to find the parameters in an OTFT model from a set of experimental data. Agreement between measured and modeled DC I-V characteristics is excellent. Moreover, the parameter values obtained with this procedure agree remarkably with the ones obtained by a direct extraction method

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注意缺陷多动障碍患者应该如何从中枢兴奋剂切换至托莫西汀治疗——一项比较快速切换方案和缓慢切换方案治疗效果的研究

注意缺陷多动障碍患者应该如何从中枢兴奋剂切换至托莫西汀治疗—...

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中华医学会第十次全国精神医学学术会议

作者： Esther Cardo Jalón Vibeke Porsda Deborah Quai Joaquin Fuentes Chris Steer Alonso Montoya Ernie Anand rodrigo Escobar 吴胜虎 University of Balearic Island Palma de MallorcaSpain

目的比较儿童和青少年注意缺陷多动障碍(Attention Deficit/HyperactivityDisorder,ADHD)患者由中枢兴奋剂治疗快速或缓慢地切换至托莫西汀(atomoxetine,ATX)治疗的效果。方法采用随机、对照、开放式研究设计,入选6～16岁ADHD患者,既往...

目的比较儿童和青少年注意缺陷多动障碍(Attention Deficit/HyperactivityDisorder,ADHD)患者由中枢兴奋剂治疗快速或缓慢地切换至托莫西汀(atomoxetine,ATX)治疗的效果。方法采用随机、对照、开放式研究设计,入选6～16岁ADHD患者,既往使用中枢兴奋剂治疗,但因为治疗反应不理想和/或副作用而需切换至ATX治疗(快速切换方案是指中枢兴奋剂治疗2周后就切换至ATX治疗,而缓慢切换方案为中枢兴奋剂治疗10周后再换用ATX治疗)。研究周期为14周,ATX目标剂量为1.2～1.8mg/kg/d。主

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