Agricultural Exploitation

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Gílcia Aparecida De Carvalho - One of the best experts on this subject based on the ideXlab platform.

  • ecology of sand flies in a low density residential rural area with mixed forest Agricultural Exploitation in north eastern brazil
    Acta Tropica, 2015
    Co-Authors: Débora Elienai De Oliveira Miranda, Kamila Gaudêncio Da Silva Sales, Maria Aparecida Da Gloria Faustino, Leucio Câmara Alves, Sinval Pinto Brandaofilho, Filipe Dantastorres, Gílcia Aparecida De Carvalho
    Abstract:

    Abstract Cutaneous leishmaniasis caused by Leishmania braziliensis is endemic in Brazil, where Lutzomyia whitmani is the most important vector involved in the transmission to humans, particularly in the peridomestic environment. Herein, we assessed the ecology of sand flies, including Lu. whitmani , in a low-density residential rural area with mixed forest/Agricultural Exploitation in north-eastern Brazil, where cutaneous leishmaniasis is endemic. Particularly, we hypothesized that sand fly abundance was correlated with climatic variables. Sand fly collections were carried out monthly from August 2013 to August 2014, using seven CDC light traps, for three consecutive nights, in three kinds of environments: indoor, peridomicile and forest. Collected sand flies were identified based on morphology and females of Lu . whitmani ( n  = 169), Lu . amazonensis ( n  = 134) and Lu . complexa ( n  = 21) were selected and tested by PCR for Leishmania ( Viannia ) spp. In total, 5167 sand flies belonging to 19 species were identified, being that Lu. choti (43.2%) was the most frequent species, followed by Lu . amazonensis (16.6%), Lu . whitmani (15.8%), Lu. sordellii (10.7%) and Lu. quinquefer (5.8%), which together represented over 90% of the collected sand flies. All females tested by PCR were negative. The number of sand flies collected daily was positively correlated with temperature and negatively correlated with rainfall and relative humidity. Furthermore, there was a positive correlation between daily number of sand flies and daily average saturation deficit. This study points out that the number of sand flies captured daily is correlated to climatic variables, including saturation deficit, which may represent a useful parameter for monitoring sand fly populations in leishmaniasis-endemic areas.

  • Ecology of sand flies in a low-density residential rural area, with mixed forest/Agricultural Exploitation, in north-eastern Brazil.
    Acta Tropica, 2015
    Co-Authors: Débora Elienai De Oliveira Miranda, Kamila Gaudêncio Da Silva Sales, Maria Aparecida Da Gloria Faustino, Leucio Câmara Alves, Sinval Pinto Brandão-filho, Filipe Dantas-torres, Gílcia Aparecida De Carvalho
    Abstract:

    Cutaneous leishmaniasis caused by Leishmania braziliensis is endemic in Brazil, where Lutzomyia whitmani is the most important vector involved in the transmission to humans, particularly in the peridomestic environment. Herein, we assessed the ecology of sand flies, including Lu. whitmani, in a low-density residential rural area with mixed forest/Agricultural Exploitation in north-eastern Brazil, where cutaneous leishmaniasis is endemic. Particularly, we hypothesized that sand fly abundance was correlated with climatic variables. Sand fly collections were carried out monthly from August 2013 to August 2014, using seven CDC light traps, for three consecutive nights, in three kinds of environments: indoor, peridomicile and forest. Collected sand flies were identified based on morphology and females of Lu. whitmani (n=169), Lu. amazonensis (n=134) and Lu. complexa (n=21) were selected and tested by PCR for Leishmania (Viannia) spp. In total, 5167 sand flies belonging to 19 species were identified, being that Lu. choti (43.2%) was the most frequent species, followed by Lu. amazonensis (16.6%), Lu. whitmani (15.8%), Lu. sordellii (10.7%) and Lu. quinquefer (5.8%), which together represented over 90% of the collected sand flies. All females tested by PCR were negative. The number of sand flies collected daily was positively correlated with temperature and negatively correlated with rainfall and relative humidity. Furthermore, there was a positive correlation between daily number of sand flies and daily average saturation deficit. This study points out that the number of sand flies captured daily is correlated to climatic variables, including saturation deficit, which may represent a useful parameter for monitoring sand fly populations in leishmaniasis-endemic areas.

Filipe Dantastorres - One of the best experts on this subject based on the ideXlab platform.

  • ecology of sand flies in a low density residential rural area with mixed forest Agricultural Exploitation in north eastern brazil
    Acta Tropica, 2015
    Co-Authors: Débora Elienai De Oliveira Miranda, Kamila Gaudêncio Da Silva Sales, Maria Aparecida Da Gloria Faustino, Leucio Câmara Alves, Sinval Pinto Brandaofilho, Filipe Dantastorres, Gílcia Aparecida De Carvalho
    Abstract:

    Abstract Cutaneous leishmaniasis caused by Leishmania braziliensis is endemic in Brazil, where Lutzomyia whitmani is the most important vector involved in the transmission to humans, particularly in the peridomestic environment. Herein, we assessed the ecology of sand flies, including Lu. whitmani , in a low-density residential rural area with mixed forest/Agricultural Exploitation in north-eastern Brazil, where cutaneous leishmaniasis is endemic. Particularly, we hypothesized that sand fly abundance was correlated with climatic variables. Sand fly collections were carried out monthly from August 2013 to August 2014, using seven CDC light traps, for three consecutive nights, in three kinds of environments: indoor, peridomicile and forest. Collected sand flies were identified based on morphology and females of Lu . whitmani ( n  = 169), Lu . amazonensis ( n  = 134) and Lu . complexa ( n  = 21) were selected and tested by PCR for Leishmania ( Viannia ) spp. In total, 5167 sand flies belonging to 19 species were identified, being that Lu. choti (43.2%) was the most frequent species, followed by Lu . amazonensis (16.6%), Lu . whitmani (15.8%), Lu. sordellii (10.7%) and Lu. quinquefer (5.8%), which together represented over 90% of the collected sand flies. All females tested by PCR were negative. The number of sand flies collected daily was positively correlated with temperature and negatively correlated with rainfall and relative humidity. Furthermore, there was a positive correlation between daily number of sand flies and daily average saturation deficit. This study points out that the number of sand flies captured daily is correlated to climatic variables, including saturation deficit, which may represent a useful parameter for monitoring sand fly populations in leishmaniasis-endemic areas.

Débora Elienai De Oliveira Miranda - One of the best experts on this subject based on the ideXlab platform.

  • ecology of sand flies in a low density residential rural area with mixed forest Agricultural Exploitation in north eastern brazil
    Acta Tropica, 2015
    Co-Authors: Débora Elienai De Oliveira Miranda, Kamila Gaudêncio Da Silva Sales, Maria Aparecida Da Gloria Faustino, Leucio Câmara Alves, Sinval Pinto Brandaofilho, Filipe Dantastorres, Gílcia Aparecida De Carvalho
    Abstract:

    Abstract Cutaneous leishmaniasis caused by Leishmania braziliensis is endemic in Brazil, where Lutzomyia whitmani is the most important vector involved in the transmission to humans, particularly in the peridomestic environment. Herein, we assessed the ecology of sand flies, including Lu. whitmani , in a low-density residential rural area with mixed forest/Agricultural Exploitation in north-eastern Brazil, where cutaneous leishmaniasis is endemic. Particularly, we hypothesized that sand fly abundance was correlated with climatic variables. Sand fly collections were carried out monthly from August 2013 to August 2014, using seven CDC light traps, for three consecutive nights, in three kinds of environments: indoor, peridomicile and forest. Collected sand flies were identified based on morphology and females of Lu . whitmani ( n  = 169), Lu . amazonensis ( n  = 134) and Lu . complexa ( n  = 21) were selected and tested by PCR for Leishmania ( Viannia ) spp. In total, 5167 sand flies belonging to 19 species were identified, being that Lu. choti (43.2%) was the most frequent species, followed by Lu . amazonensis (16.6%), Lu . whitmani (15.8%), Lu. sordellii (10.7%) and Lu. quinquefer (5.8%), which together represented over 90% of the collected sand flies. All females tested by PCR were negative. The number of sand flies collected daily was positively correlated with temperature and negatively correlated with rainfall and relative humidity. Furthermore, there was a positive correlation between daily number of sand flies and daily average saturation deficit. This study points out that the number of sand flies captured daily is correlated to climatic variables, including saturation deficit, which may represent a useful parameter for monitoring sand fly populations in leishmaniasis-endemic areas.

  • Ecology of sand flies in a low-density residential rural area, with mixed forest/Agricultural Exploitation, in north-eastern Brazil.
    Acta Tropica, 2015
    Co-Authors: Débora Elienai De Oliveira Miranda, Kamila Gaudêncio Da Silva Sales, Maria Aparecida Da Gloria Faustino, Leucio Câmara Alves, Sinval Pinto Brandão-filho, Filipe Dantas-torres, Gílcia Aparecida De Carvalho
    Abstract:

    Cutaneous leishmaniasis caused by Leishmania braziliensis is endemic in Brazil, where Lutzomyia whitmani is the most important vector involved in the transmission to humans, particularly in the peridomestic environment. Herein, we assessed the ecology of sand flies, including Lu. whitmani, in a low-density residential rural area with mixed forest/Agricultural Exploitation in north-eastern Brazil, where cutaneous leishmaniasis is endemic. Particularly, we hypothesized that sand fly abundance was correlated with climatic variables. Sand fly collections were carried out monthly from August 2013 to August 2014, using seven CDC light traps, for three consecutive nights, in three kinds of environments: indoor, peridomicile and forest. Collected sand flies were identified based on morphology and females of Lu. whitmani (n=169), Lu. amazonensis (n=134) and Lu. complexa (n=21) were selected and tested by PCR for Leishmania (Viannia) spp. In total, 5167 sand flies belonging to 19 species were identified, being that Lu. choti (43.2%) was the most frequent species, followed by Lu. amazonensis (16.6%), Lu. whitmani (15.8%), Lu. sordellii (10.7%) and Lu. quinquefer (5.8%), which together represented over 90% of the collected sand flies. All females tested by PCR were negative. The number of sand flies collected daily was positively correlated with temperature and negatively correlated with rainfall and relative humidity. Furthermore, there was a positive correlation between daily number of sand flies and daily average saturation deficit. This study points out that the number of sand flies captured daily is correlated to climatic variables, including saturation deficit, which may represent a useful parameter for monitoring sand fly populations in leishmaniasis-endemic areas.

Rosa Albiach - One of the best experts on this subject based on the ideXlab platform.

  • Water management and land-use practices from the Iron-Age to the Roman period in Eastern Iberia
    Journal of Archaeological Science, 2014
    Co-Authors: Hector A. Orengo, Ana Ejarque, Rosa Albiach
    Abstract:

    This study investigates water and land usage in the territory of La Carència, an Ibero-Roman city located near Turís (Valencia, Spain) in Eastern Iberia. The outstanding political importance of La Carència during the Iberian Iron-Age period is attested by its large size, the monumental character of its structures and on-site finds. Multidisciplinary and micro-regional landscape work at its territory documented significant differences between the Iberian and the Roman settlement patterns, which are attributed to the distinct Agricultural production and water management systems of each period. While Iberian sites are more related to the Agricultural Exploitation of flat, dry land for which water sources, such as natural springs, were probably used, Roman sites seem to be associated with more productive soils that take advantage of flooding areas and the drainage of water accumulation zones. Such different Agricultural preferences based on large-scale water management are documented for the first time in the Iberian Peninsula and they attest to the great potential of multidisciplinary landscape archaeology to address past land-use practices.

O. Núñez-fernández - One of the best experts on this subject based on the ideXlab platform.

  • Development of an experimental procedure to analyse the ‘soil health state’ by microcalorimetry
    Journal of Thermal Analysis and Calorimetry, 2007
    Co-Authors: J. Rodríguez-añón, J. Proupín-castiñeiras, M. Villanueva-lópez, O. Núñez-fernández
    Abstract:

    This work is a ‘historical’ revision of the evolution of an experimental procedure developed by Prof. Lisardo Núñez and his research group TERBIPROMAT to study the sustainability and the soil health state. From the very beginning, in 1993, the microbial activity was the main bioindicator selected to analyse the ‘soil health state’. For this reason, a microcalorimetric technique was used lately to analyse the influence of different human activities such as reforestations, Agricultural Exploitation or pollution on the microbial activity in different soils. Microcalorimetry is the main scientific technique used in this research to follow the stimulation of the microbial activity by addition of glucose. The data obtained were complemented by a study of physical, chemical and biological parameters of soil and allowed to follow the microbial activity in soils of Galicia (Spain) along the year. The final results, still in revision, will be helpful in establishing a data basis for real maps of the ‘health state’ of different soils. Such maps could be used to design processes that help us to decide how we should exploit soils ensuring their sustainability.

  • Influence of the Agricultural Exploitation processes on the productivity capacity control of soils
    Journal of Thermal Analysis and Calorimetry, 2005
    Co-Authors: L. Núñez-regueira, J. A. Rodríguez-añón, J. Proupín-castiñeiras, O. Núñez-fernández
    Abstract:

    Soil productivity and health were analyzed using an experimental procedure designed for this kind of studies. The continuous loss of fertile soil obliged the Food and Agriculture Organization (FAO) to declare soil as an item to be protected as a support of the world society welfare. The procedure here described is in accordance with the premises necessary for a rational and sustainable development of soil and the resources it contains and can be used to study any soil all over the world. The study was carried out using soil microbial population as a bioindicator of soil health. Microbial activity was followed using the microcalorimetric technique. The microcalorimetric study can be complemented through a deep analysis of soil physical, chemical and biological properties together with a study of the environmental properties that have a strong influence on the afore mentioned properties and, thus on the microbial activity in soil. The different properties follow different ASTM, ISS/FAO, USDA, etc. well defined standards. The experimental procedure reported in this work could be very helpful to create a data basis that could be useful to quantify and control soil potentiality or design soil decontamination and recovery systems.