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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
721

Using Remote Cameras to Estimate the Abundance of Ungulates

Taylor, Jace C 01 December 2017 (has links)
Many wildlife populations globally are experiencing unprecedented declines, and without accurate and precise estimates of abundance, we will not be able to conserve these vulnerable species. Remote cameras have rapidly advanced as wildlife monitoring tools and may provide accurate and precise estimates of abundance that improve upon traditional methods. Using remote cameras to estimate abundance may be less expensive, less intrusive, less dangerous, and less time consuming than other methods. While it is apparent that remote cameras have a place in the future of wildlife monitoring, research, and management, many questions remain concerning the proper use of these tools. In an effort to answer some of these questions, we used remote cameras to study a population of Rocky Mountain bighorn sheep (Ovis canadensis) in Utah, USA from 2012 to 2014. In Chapter 1, we compared methods using remote cameras against 2 traditional methods of estimating abundance. In Chapter 2, we evaluated the relationship between deployment time of cameras and proportion of photos needed to be analyzed to obtain precise estimates of abundance. We found that methods using remote cameras compared favorably to traditional methods of estimating abundance, and provided a number of valuable advantages. In addition, we found that remote cameras can produce precise estimates of abundance in a relatively short sampling period. Finally, we identified the optimal sampling period to produce precise estimates of abundance for our study population. Our findings can help researchers better utilize the potential of remote cameras, making them a more suitable alternative to traditional wildlife monitoring.
722

Using Remote Cameras to Estimate the Abundance of Ungulates

Taylor, Jace C 01 December 2017 (has links)
Many wildlife populations globally are experiencing unprecedented declines, and without accurate and precise estimates of abundance, we will not be able to conserve these vulnerable species. Remote cameras have rapidly advanced as wildlife monitoring tools and may provide accurate and precise estimates of abundance that improve upon traditional methods. Using remote cameras to estimate abundance may be less expensive, less intrusive, less dangerous, and less time consuming than other methods. While it is apparent that remote cameras have a place in the future of wildlife monitoring, research, and management, many questions remain concerning the proper use of these tools. In an effort to answer some of these questions, we used remote cameras to study a population of Rocky Mountain bighorn sheep (Ovis canadensis) in Utah, USA from 2012 to 2014. In Chapter 1, we compared methods using remote cameras against 2 traditional methods of estimating abundance. In Chapter 2, we evaluated the relationship between deployment time of cameras and proportion of photos needed to be analyzed to obtain precise estimates of abundance. We found that methods using remote cameras compared favorably to traditional methods of estimating abundance, and provided a number of valuable advantages. In addition, we found that remote cameras can produce precise estimates of abundance in a relatively short sampling period. Finally, we identified the optimal sampling period to produce precise estimates of abundance for our study population. Our findings can help researchers better utilize the potential of remote cameras, making them a more suitable alternative to traditional wildlife monitoring.
723

Proof of Concept for the Detection of Local Pressure Marks in Prosthesis Sockets Using Structural Dynamics Measurement

Neupetsch, Constanze, Hensel, Eric, Kranz, Burkhard, Drossel, Welf-Guntram, Felderhoff, Thomas, Heyde, Christoph-Eckard 08 May 2023 (has links)
The wear comfort of a prosthesis is of great importance for amputee patients. The wear comfort can be affected by changes in the interface between the residual limb and prosthesis socket, which can be caused by time-dependent volume fluctuations of the tissue, leading to unwanted local pressure marks. The basis to ensure time-independent wear comfort of a prosthesis is to identify these changes. Common techniques for identifying these variations have a negative impact on the sensitive interface between the residual limb and prosthesis. The following paper contains a proof of concept for the detection of local pressure marks without affecting the described interface using structural dynamics measurements, exemplarily shown at a prosthetic socket for transfemoral amputees in a test bench scenario. The dynamical behaviour of the investigated system is analysed in the form of frequency response functions acquired for different pressure locations and preloads using an impact hammer for excitation and a triaxial acceleration sensor. The frequency response functions show major changes for the various boundary conditions with respect to their frequency-dependent compositions. The results demonstrate how the utilised method enables the identification of changes in local pressure marks regarding the variation of position and magnitude.
724

Kunskaper från nordiska hyresbostadsmarknader : Att utveckla hyresbostadsmarknaden i Sverige

Oké, Arvid, Davidsson, Robin January 2023 (has links)
This essay primarily focuses on the rental housing market in Sweden. The problem addressed is the housing shortage and the underlying factors contributing to the housing shortage we are facing. We consider research on this issue to be necessary for society. The essay takes into account the regulations and systems on which the market is built. We attempt to address the general issues in Sweden's rental housing market to answer our research question. We use Norway, Denmark, and Finland as reference points to understand how housing policies can be structured differently. This provides us with a good understanding of multiple systems and helps us reach a rational conclusion. The study employs a deductive approach with qualitative interviews to gain a thorough understanding of the subject, furthermore, building on interviews with knowledgeable respondents.The main aspects we focus on are the utility value system and land and planning processes. We consider these as central components of an inefficient system and part of the explanation for the housing shortage.
725

American Literature's Secular Faith

Horton, Ray 02 June 2017 (has links)
No description available.
726

NAVIGATING THE TORRENT: DOCUMENTARY FICTION IN THE AGE OF MASS MEDIA

CRINITI, STEPHEN FRANCIS January 2007 (has links)
No description available.
727

Markåtkomst och ersättning vid upprättande av översvämningsskydd / Land access and compensation in the establishment of flood protection

Skogward, Noah, Lindkvist, Hampus January 2024 (has links)
I takt med att klimatet förändras ökar frekvensen av extrema väderhändelser. I Sverige har den ökade årsmedeltemperaturen och nederbörden förhöjt risken för översvämningar. Översvämningar är inget nytt fenomen och har i Sverige orsakat stor skada på privat och offentlig egendom, kritisk infrastruktur och samhället i stort. Med tanke på översvämningarnas breda definition avgränsas denna studie till översvämningar som härleds från havet, sjöar eller vattendrag.  För att skydda samhället mot översvämningar och mildra de sociala, ekologiska och ekonomiska skador som uppstår, implementerar kommuner och privata fastighetsägare olika typer av skyddsåtgärder, såsom skyddsvallar och dammar. Syftet med denna rapport är att undersöka vilka skyddsåtgärder som tillämpas, om privat mark tas i anspråk för att etablera översvämningsskydd och vilka ersättningsprinciper som används.  För att besvara uppsatsens frågeställningar tillämpas en kvalitativ metodansats, inkluderande fallstudier, litteraturstudier och semistrukturerade intervjuer, för att samla in data. Fallstudier från tio kommuner med kända översvämningsrisker utgör grunden för de erhållna resultaten och ger insikt i hur dessa frågor hanteras i kommunerna. Intervjuerna, som har genomförts digitalt, utgör den primära datakällan för fallstudierna och har kompletterats med relevant litteratur. Eftersom resultatet baseras på den data som erhållits från intervjuer styrs resultatet av den kompetens och kunskap respondenterna har samt hur insatta de är i ämnet.  I den teoretiska bakgrunden ges en översyn över de juridiska förutsättningar som kommuner har för att skydda egendom, infrastruktur och samhället mot översvämningar. Denna bakgrund tillhandahåller nödvändig information för att nyansera och kontextualisera resultatet.  I rapportens resultatdel presenteras fallstudier utförda på följande kommuner: Arvika, Göteborg, Halmstad, Kalmar, Karlstad, Kristianstad, Lomma, Trelleborg, Vellinge och Värnamo. Varje fallstudie analyserar och beskriver kommunens översvämningsrisker, genomförda skyddsåtgärder, processer för markåtkomst och ersättningsmodeller. Dessa studier illustrerar hur olika kommuner anpassar sina strategier utifrån förutsättningar och de juridiska verktyg som finns till hands. Kommuner som Kristianstad, Vellinge, Arvika och Karlstad har tagit privat mark i anspråk för att upprätta översvämningsskydd. I dessa kommuner har även ersättning utgått till fastighetsägarna för intrång i äganderätten. Ambitionen är att lösa förvärven via frivilliga överenskommelser, där befintlig lagstiftning underlättar förhandlingarna. Ersättningen baseras vanligtvis på en oberoende värdering av marknadsvärdet plus ett påslag på 25 % för att ge en skälig ersättning för skadan. I Vellinge har ersättningsfrågan varit särskilt omdiskuterad, och efter ett domstolsbeslut i Mark- och miljööverdomstolen fastställdes den intrångsersättning som utgick till fastighetsägarna.  I Göteborg och Trelleborg uppförs skydden inom ramen för detaljplaneprocessen. I de fall där kommunen inte äger mark, vilket dessa kommuner gör i stor utsträckning, har förvärvet av marken säkerställts inom ramen för de civilrättsliga avtal som upprättas när detaljplanerna realiseras. I Värnamo, Lomma och Halmstad har översvämningsskydden upprättats på kommunal mark, vilket innebär att ingen ersättning har utgått till privata fastighetsägare.  Från resultatet framgår tydligt att kommunernas unika förutsättningar styr de strategier som implementeras. I vissa kommuner tas privat mark i anspråk för säkra samhället mot översvämningar, vilket förefaller bero på vikten av att säkerställa kompletta skydd och de rådande markägoförhållandena. Majoriteten av förvärven har säkerställts med frivilliga överenskommelser, där lagstiftningen utgör grunden för förhandlingarna. Att skydda samhällen mot översvämningar är avgörande för att skapa socialt och ekonomiskt hållbara samhällen för medborgarna. Ett koordinerat kommunalt arbete med goda förutsättningar att upprätta skydd och stödja privata fastighetsägare kan bidra till säkrare och bättre rustade samhällen för att hantera de risker och skador som härleds till översvämningar. / As the climate changes, the frequency of extreme weather events increases. In Sweden, the rising annual average temperature and precipitation have heightened the risk of flooding. Flooding is not a new phenomenon and has caused significant damage to private and public property, critical infrastructure, and society at large in Sweden. Given the broad definition of flooding, this study is limited to floods originating from the sea, lakes or rivers.  To protect society against flooding and mitigate the social, ecological, and economic damages that occur, municipalities and private property owners implement various protective measures, such as levees and dams. The purpose of this report is to investigate the protective measures that are applied, whether private land is appropriated for establishing flood defenses, and the compensation principles used. This thesis employs a qualitative methodological approach, including case studies, literature reviews, and semi-structured interviews, to gather data. Case studies from ten municipalities with known flood risks form the basis of the results and provide insight into how these issues are managed locally. The interviews, conducted digitally, serve as the primary data source for the case studies and have been supplemented with relevant literature. Since the results are based on data obtained from interviews, they are influenced by the competence and knowledge of the respondents and their familiarity with the subject. The theoretical background provides an overview of the legal frameworks available to municipalities to protect property, infrastructure, and society against flooding. This background provides essential information to nuance and contextualize the results. The results section presents case studies conducted in the following municipalities: Arvika, Gothenburg, Halmstad, Kalmar, Karlstad, Kristianstad, Lomma, Trelleborg, Vellinge, and Värnamo. Each case study analyzes and describes the municipality's flood risks, implemented protective measures, land acquisition processes, and compensation models. These studies illustrate how different municipalities adapt their strategies based on conditions and available legal tools. Municipalities such as Kristianstad, Vellinge, Arvika, and Karlstad have appropriated private land to establish flood defenses. In these municipalities, compensation has also been awarded to property owners for infringements on property rights. The goal is to resolve acquisitions through voluntary agreements, where existing legislation facilitates negotiations. Compensation is usually based on an independent valuation of the market value plus an additional 25% to provide fair compensation for the damage. In Vellinge, the issue of compensation has been particularly contentious, and after a court ruling in the Swedish equivalent to Land and Environment Court of Appeal, the compensation awarded to property owners was established. In Gothenburg and Trelleborg, the defenses are constructed within the framework of the detailed planning process. In cases where the municipality does not own the land, which is often the case in these municipalities, the acquisition of land has been secured within the framework of the civil law agreements established as the detailed plans are realized. In Värnamo, Lomma, and Halmstad, the flood defenses have been established on municipal land, meaning that no compensation has been paid to private property owners. The results clearly show that the unique conditions of the municipalities dictate the strategies implemented. In some municipalities, private land is appropriated to secure the community against flooding, which appears to depend on the importance of ensuring complete protections and the prevailing land ownership conditions. The majority of acquisitions have been secured through voluntary agreements, where legislation forms the basis of the negotiations. Protecting communities from flooding is crucial for creating socially and economically sustainable communities for citizens. Coordinated municipal efforts with good conditions for establishing defenses and supporting private property owners can contribute to safer and better-prepared communities to manage the risks and damages associated with flooding.
728

Hur tolkar präster i Svenska kyrkan liknelserna i Markusevangeliets fjärde kapitel?

Stambro, Fredrik January 2024 (has links)
The purpose of this master's thesis is to explore how priests interpret the parables in the fourth chapter of the Gospel of Mark using a hermeneutic qualitative approach and semi-structured interviews. The aim is to shed light on a selected group of priests in their roles within the context of the Church of Sweden, where interpretation is a part of their work, primarily focusing on the parables in the fourth chapter of Mark's Gospel and how this is done in interpretation, both in encounters with individuals and in preaching. An inductive approach has influenced the study, which also permeates the qualitative method with a focus on creating understanding to gain knowledge about the nature of these various phenomena among four priests. Generalization is not possible due to the small number of informants for making overall generalizations. Nor is it what has been sought. The aim of qualitative research is to gain a deeper understanding of a phenomenon and to illuminate how individuals experience it in their context. The study aims to understand how a specifically selected group of individuals, namely priests who have worked for an extended period within the Swedish Church, interpret the parables in Gospel of Mark.
729

Demography and Behavior of Western Sandpipers (Calidris mauri) Breeding on the Yukon-Kuskokwim River Delta, Alaska

Johnson, James Matthew 30 November 2006 (has links)
I conducted demographic and behavioral studies of Western Sandpipers (Calidris mauri) breeding on the Yukon-Kuskokwim River Delta, Alaska (1998-2005). In chapter one, I estimated apparent annual survival (product of true survival and site fidelity) while correcting for the probability of encounter for 237 males and 296 females. Overall return rates (individual returned to the site in a subsequent season) were lower for females (40%) than males (65%), as was apparent annual survival (± SE, females = 0.65 ± 0.05, males = 0.78 ± 0.03), and encounter rate (females = 0.51 ± 0.07, males = 0.74 ± 0.04). In chapter two, I examined the effects of mate and site fidelity on nesting success (N = 430 nests). Annual divorce rate ranged between 37-83%, with 17-63% of pairs reuniting annually. Reuniting pairs initiated clutches earlier than newly formed pairs, and clutches that were initiated early in the season had higher nest success rates compared to late-season nests. When I controlled for clutch-initiation date, nests tended by individuals with prior breeding-site experience had higher daily survival rates compared to birds breeding at the site for the first time. The effect of site experience was greater for males than females. In chapter 3, I reported that Western Sandpipers exhibited aggregated breeding behavior on a 36 ha plot. Breeding aggregations occurred when dominant and/or older individuals excluded younger, subordinate individuals from preferred habitat. The pattern of habitat occupancy conformed to an ideal despotic distribution with aggregated nesting birds in less preferred habitat experiencing lower reproductive success. In chapter 4, I described and demonstrated the form and function of parent-chick communication in the Western Sandpiper. Through experimental playback of adult vocalizations to chicks in the field, I demonstrated: (1) chicks respond to the alarm call by vocalizing relatively less often and moving away from the signal source, (2) chicks respond to the gather call by vocalizing relatively more often and moving toward the signal source, (3) and chicks respond to the freeze call by vocalizing relatively less often and crouching motionless on the substrate for extended periods of time. I also describe two distinct chick vocalizations (chick-contact and chick-alarm calls). / Ph. D.
730

Factors influencing the mobility of Red Palm Weevil Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae) adults

Ávalos Masó, Juan Antonio 07 January 2016 (has links)
Tesis por compendio / [EN] The management of Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae), the worst threat for palm trees worldwide, consists in several preventive and curative techniques, but because of its low efficacy the insect still causes major economic and landscape losses. In order to define aspects that have facilitated its rapid dispersal and contribute to improving its management, the effects of vision and flight, which influence the mobility of R. ferrugineus, have been analysed. The chromatic preference of R. ferrugineus has been studied by analysing their captures in coloured bucket traps. Black traps capture the highest number of insects compared with the other colours studied, both when they contain olfactory attractants, as when these compounds are not used, demonstrating that colour by itself is a crucial attraction factor. Moreover, the spectral reflectance of studied colours and of some P. canariensis tissues has been analysed. The wavelength spectrum of black shows great similarity to that of fibres of P. canariensis, so this may be the reason why R. ferrugineus prefers this colour. Regarding sex ratio of the insect in traps, female captures are significantly greater in those baited with olfactory attractants. However, a higher number of female captures does not always occur when these compounds are not used. On the other hand, the study of sex ratio in natural populations of the insect demonstrates that the proportion is one female per male. Therefore, the greater number of captures of females in commercial traps is due exclusively to their greater attraction towards the olfactory attractants used. Another of the analysed aspects has been the flight potential of R. ferrugineus under laboratory conditions. In order to know more about the mobility of this insect, different parameters have been studied using a computer-monitored flight mill. The selected parameters used to define the R. ferrugineus flight potential have been the number of flights, total distance flown, longest single flight, flight duration, and average and maximum speed. Moreover, the influence of sex, body size, and age of the adults on the aforementioned parameters has been examined. R. ferrugineus sex does not have a significant effect on the compared flight parameters. The body size in females is significantly greater, but this does not influence their flight potential. A higher percentage of flight is observed for adults with an age range of 8-23 days old, compared to the 1-7 day old adults. However, age does not significantly influence their flight potential. By analysing the longest single flight undertaken by each adult, up to 63% of the insects can be classified as short-distance flyers (<500m), 27.3% as medium-distance flyers (500-5000m), and >9% as long-distance flyers (>5000m). Finally, the flight behaviour and dispersal of R. ferrugineus have been analysed under field conditions using the mark-release-recapture method. This test focused on detecting the influence of different factors, such as sex, temperature, relative humidity, and solar radiation, in the take-off and dispersal of the adult insects. Take-off probability of R. ferrugineus adults is significantly greater in males Moreover, this probability increases when temperature and solar radiation rise. Concerning the insect dispersal by flying, the number of recaptures is influenced by temperature, increasing significantly when this factor increases. Likewise, dispersal distances also increase significantly as temperatures rise. The insect tends to fly distances <500m (77.1% of recaptured adults), following the same tendency observed in studies performed using the flight mill. However, R. ferrugineus is able to travel up to 7km, being recorded under laboratory conditions a potential flight up to 20km. To conclude, dispersal time of the adults is very short (more than 90% of the adults were recaptured during the first 7 days), being significantly lower when relative humidity increases. / [ES] El manejo de Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae), una de las peores amenazas para las palmeras en el mundo, se lleva a cabo mediante la aplicación de diversas técnicas de prevención y control, pero debido a la baja eficacia de éstas la plaga continúa causando importantes pérdidas económicas y paisajísticas. Para definir los aspectos que han intervenido en su dispersión y contribuir a mejorar su manejo, se ha analizado el efecto de la visión y el vuelo en la movilidad de los adultos de R. ferrugineus. Se ha estudiado la preferencia cromática mediante el análisis de sus capturas en trampas cubo coloreadas. Las trampas negras capturan el mayor nº de insectos en comparación con el resto de colores estudiados, tanto cuando contienen atrayentes olfativos como cuando no los contienen, demostrando que el color por sí mismo es un factor importante de atracción. Además, se ha analizado el espectro de longitud de onda de los colores estudiados y de diversos tejidos de P. canariensis. El espectro del color negro muestra gran similitud con el de las fibras de P. canariensis, es por esto por lo que R. ferrugineus podría presentar esta preferencia. En relación a la proporción de sexos en trampas que contienen atrayentes olfativos, las capturas de hembras son significativamente más elevadas. En cambio, sin éstos no siempre se produce un mayor nº de capturas de este sexo. Por otro lado, el estudio de la proporción de sexos en poblaciones naturales muestra una ratio de una hembra por macho. Por tanto, las mayores capturas de hembras en trampas se deben a una mayor atracción de éstas hacia los atrayentes olfativos. Otro aspecto estudiado ha sido el potencial de vuelo de R. ferrugineus bajo condiciones de laboratorio. Con la finalidad de conocer la movilidad de este insecto se han analizado diversos parámetros mediante la utilización de un molinillo de vuelo computerizado. Los parámetros estudiados han sido: nº vuelos, distancia total volada, vuelo más largo, duración del vuelo y velocidades media y máxima. Además, se ha analizado como influye el sexo, el tamaño del cuerpo y la edad de los adultos en dichos parámetros de vuelo. El sexo de R. ferrugineus no muestra un efecto significativo sobre los parámetros de vuelo comparados. El tamaño del cuerpo de las hembras es significativamente mayor, pero no influye estadísticamente en su potencial de vuelo. En adultos con edades de entre 8-23 días se observa un mayor porcentaje de vuelo que en aquellos con 1-7 días de edad. En cambio, la edad no influye significativamente sobre su potencial de vuelo. Al analizar el vuelo más largo, obtenemos que >63% de los insectos se clasifican como voladores de corta distancia (<500m), el 27.3% de media distancia (500-5000m), y >9% de larga distancia (>5000m). Finalmente, se ha analizado en campo el comportamiento de vuelo y dispersión de R. ferrugineus mediante la técnica de marcaje-suelta-recaptura. Este ensayo ha permitido estudiar la influencia del sexo, la temperatura (Tª), la humedad relativa y la radiación solar, en el despegue y dispersión de los adultos. La probabilidad de despegue de R. ferrugineus es significativamente mayor en machos. Además, esta probabilidad se incrementa cuando la Tª y la radiación solar aumentan. Respecto a la dispersión del insecto mediante el vuelo, el nº de recapturas se ve influenciado por la Tª, aumentando significativamente cuando ésta se incrementa. De la misma manera, las distancias de dispersión también se incrementan significativamente a media que lo hace la Tª. El insecto tiende a volar distancias <500m (77.1% de los adultos recapturados), siguiendo la misma tendencia observada en laboratorio. No obstante, R. ferrugineus es capaz de recorrer hasta 7km, llegando a registrarse vuelos potenciales en laboratorio de hasta 20km. Por último, el tiempo de dispersión de los adultos es muy corto (>90% se recapturaron en los 7 primeros días), reduciéndose / [CA] El maneig de Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae), una de les pitjors amenaces per a les palmeres en tot el món, es porta a terme mitjançant l'aplicació de diverses tècniques de prevenció i control, però degut a la baixa eficàcia d'aquestes l'insecte continua causant importants pèrdues econòmiques i paisatgístiques. Per a definir els aspectes que han intervingut en la seua dispersió i contribuir a la millora del seu maneig, s'ha analitzat l'efecte que tenen la visió i el vol en la mobilitat dels adults de R. ferrugineus. S'ha estudiat la preferència cromàtica mitjançant l'anàlisi de les seues captures en trampes poal acolorides. Les trampes negres capturen el major nombre d'insectes en comparació amb la resta de colors estudiats, tant quan contenen atraients olfactius com quan no els contenen, demostrant que el color per ell mateix és un factor important d'atracció. A més, s'ha analitzat l'espectre de longitud d'ona dels colors estudiats i de diversos teixits de P. canariensis. L'espectre del color negre mostra gran similitud amb el de les fibres de P. canariensis, és per açò pel que R. ferrugineus podria presentar aquesta preferència. En relació a la proporció de sexes a les trampes que contenen atraients olfactius, les captures de femelles són significativament més elevades. En canvi, sense aquests no sempre es produeix un major nombre de captures d'aquest sexe. Per altra banda, l'estudi de la proporció de sexes en poblacions naturals demostra que la ràtio és d'una femella per mascle. Per tant, les majors captures de femelles en trampes es deuen a una major atracció d'aquestes cap als atraients olfactius utilitzats. Altre aspecte estudiat ha sigut el potencial de vol de R. ferrugineus sota condicions de laboratori. Amb la finalitat de conèixer la mobilitat d'aquest insecte s'han analitzat diversos paràmetres mitjançant la utilització d'un molinet de vol computeritzat. Els paràmetres estudiats han sigut: nombre de vols, distància total volada, vol més llarg, duració del vol i velocitats mitjana i màxima dels vols. A més, s'ha analitzat com influeixen el sexe, el tamany del cos i l'edat dels adults en dits paràmetres de vol. El sexe de R. ferrugineus no mostra un efecte significatiu sobre els paràmetres de vol comparats. El tamany del cos de les femelles és significativament major, però no influeix estadísticament en el seu potencial de vol. En adults amb edats d'entre 8-23 dies s'observa un major percentatge de vol que en aquells amb 1-7 dies d'edat. En canvi, l'edat no influeix significativament sobre el seu potencial de vol. En analitzar el vol més llarg, obtenim que més del 63% dels insectes es classifiquen com voladors de curta distància (<500m), el 27.3% de mitja distància (500-5000m), i >9% de llarga distància (>5000m). Finalment, s'ha analitzat en camp el comportament de vol i dispersió de R. ferrugineus mitjançant la tècnica de marcatge-solta-recaptura. Aquest assaig ha permès estudiar la influència del sexe, la temperatura, la humitat relativa i la radiació solar, en l'enlairament i dispersió dels adults. La probabilitat d'enlairament de R. ferrugineus és significativament major en mascles A més, aquesta probabilitat s'incrementa quan la temperatura i la radiació solar augmenten. Respecte a la dispersió de l'insecte mitjançant el vol, el nombre de recaptures es veu influenciat per la temperatura, augmentant significativament quan aquesta s'incrementa. De la mateixa manera, les distàncies de dispersió també s'incrementen significativament a mesura que ho fa la temperatura. L'insecte tendeix a volar distàncies <500m (77.1% dels adults recapturats), seguint la mateixa tendència observada en laboratori. No obstant, R. ferrugineus és capaç de recórrer fins a 7km, arribant-se a registrar vols potencials en laboratori de fins a 20km. Per últim, el temps de dispersió dels adults és molt curt (>90% es recapturaren en els 7 primers die / Ávalos Masó, JA. (2015). Factors influencing the mobility of Red Palm Weevil Rhynchophorus ferrugineus (Coleoptera: Dryophthoridae) adults [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/59394 / Compendio

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