Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina
Some of the Biomphalaria species living in Chaco, such as B. straminea and B. tenagophila, are natural transmitters of schistosomiasis in Brazil, while those of the genus Drepanotrema are not intermediate hosts of the disease. The aim of the present work was to analyze the importance of a selected s...
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2002
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00762997_v44_n2_p273_Rumi http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00762997_v44_n2_p273_Rumi_oai |
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I28-R145-paper_00762997_v44_n2_p273_Rumi_oai2020-10-19 Rumi, A. Bechara, J.A. Hamann, M.I. Ostrowski De Núñez, M. 2002 Some of the Biomphalaria species living in Chaco, such as B. straminea and B. tenagophila, are natural transmitters of schistosomiasis in Brazil, while those of the genus Drepanotrema are not intermediate hosts of the disease. The aim of the present work was to analyze the importance of a selected set of environmental variables in explaining patterns of distributions and relative abundance of planorbid gastropod assemblages. The study sites were located in urban areas of Resistencia City, Chaco Province, and the environmental variables measured were substratum (macrophytes), water quality (pH, O2, nutrients, among others), as well as other gastropods (Ancylidae, Hydrobiidae and Ampullaridae). Seasonal samplings were carried out in four distinct environments. Thirty-one quantitative samples of gastropods and environmental variables were obtained. In canonical correspondence analysis (CCA), seven environmental variables were retained after a stepwise forward selection, from a total of 26, including [N-NH4+], O2%, and the macrophytes Eichhornia crassipes, Pistia stratiotes, Panicum elephantipes, Hydrocotyle ranunculoides and Canna glauca. They explained 62% of the variation in planorbid association. Canna glauca was the most significant variable, being positively correlated with all of the species of Drepanotrema. Axis I separates B. tenagophila from B. straminea, along a gradient related to increasing O 2% and P. elephantipes abundance, as well as decreasing [N-NH 4+] and P. stratiotes. Axis II separates D. lucidum, D. anatinum and D. cimex from the other planorbid species along a gradient associated with decreasing abundances of H. ranunculoides and C. glauca. Some common aquatic macrophytes, and to a lesser extent, dissolved oxygen and ammonium in water, may be useful indicators of favorable environmental conditions for potential intermediate hosts of schistosomiasis in Chaco Region. Fil:Ostrowski De Núñez, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00762997_v44_n2_p273_Rumi info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Malacologia 2002;44(2):273-288 Chaco Region Gastropoda Intermediate-hosts Paraná River Planorbidae Schistosomiasis Vector-ecology Ancylidae Biomphalaria Biomphalaria straminea Biomphalaria tenagophila Canna glauca Cimex Drepanotrema Drepanotrema cimex Drepanotrema lucidum Eichhornia Eichhornia crassipes Gastropoda Hydrobiidae Hydrocotyle Hydrocotyle ranunculoides Panicum Panicum elephantipes Pistia stratiotes Planorbidae Stratiotes Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00762997_v44_n2_p273_Rumi_oai |
| institution |
Universidad de Buenos Aires |
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I-28 |
| repository_str |
R-145 |
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Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| topic |
Chaco Region Gastropoda Intermediate-hosts Paraná River Planorbidae Schistosomiasis Vector-ecology Ancylidae Biomphalaria Biomphalaria straminea Biomphalaria tenagophila Canna glauca Cimex Drepanotrema Drepanotrema cimex Drepanotrema lucidum Eichhornia Eichhornia crassipes Gastropoda Hydrobiidae Hydrocotyle Hydrocotyle ranunculoides Panicum Panicum elephantipes Pistia stratiotes Planorbidae Stratiotes |
| spellingShingle |
Chaco Region Gastropoda Intermediate-hosts Paraná River Planorbidae Schistosomiasis Vector-ecology Ancylidae Biomphalaria Biomphalaria straminea Biomphalaria tenagophila Canna glauca Cimex Drepanotrema Drepanotrema cimex Drepanotrema lucidum Eichhornia Eichhornia crassipes Gastropoda Hydrobiidae Hydrocotyle Hydrocotyle ranunculoides Panicum Panicum elephantipes Pistia stratiotes Planorbidae Stratiotes Rumi, A. Bechara, J.A. Hamann, M.I. Ostrowski De Núñez, M. Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| topic_facet |
Chaco Region Gastropoda Intermediate-hosts Paraná River Planorbidae Schistosomiasis Vector-ecology Ancylidae Biomphalaria Biomphalaria straminea Biomphalaria tenagophila Canna glauca Cimex Drepanotrema Drepanotrema cimex Drepanotrema lucidum Eichhornia Eichhornia crassipes Gastropoda Hydrobiidae Hydrocotyle Hydrocotyle ranunculoides Panicum Panicum elephantipes Pistia stratiotes Planorbidae Stratiotes |
| description |
Some of the Biomphalaria species living in Chaco, such as B. straminea and B. tenagophila, are natural transmitters of schistosomiasis in Brazil, while those of the genus Drepanotrema are not intermediate hosts of the disease. The aim of the present work was to analyze the importance of a selected set of environmental variables in explaining patterns of distributions and relative abundance of planorbid gastropod assemblages. The study sites were located in urban areas of Resistencia City, Chaco Province, and the environmental variables measured were substratum (macrophytes), water quality (pH, O2, nutrients, among others), as well as other gastropods (Ancylidae, Hydrobiidae and Ampullaridae). Seasonal samplings were carried out in four distinct environments. Thirty-one quantitative samples of gastropods and environmental variables were obtained. In canonical correspondence analysis (CCA), seven environmental variables were retained after a stepwise forward selection, from a total of 26, including [N-NH4+], O2%, and the macrophytes Eichhornia crassipes, Pistia stratiotes, Panicum elephantipes, Hydrocotyle ranunculoides and Canna glauca. They explained 62% of the variation in planorbid association. Canna glauca was the most significant variable, being positively correlated with all of the species of Drepanotrema. Axis I separates B. tenagophila from B. straminea, along a gradient related to increasing O 2% and P. elephantipes abundance, as well as decreasing [N-NH 4+] and P. stratiotes. Axis II separates D. lucidum, D. anatinum and D. cimex from the other planorbid species along a gradient associated with decreasing abundances of H. ranunculoides and C. glauca. Some common aquatic macrophytes, and to a lesser extent, dissolved oxygen and ammonium in water, may be useful indicators of favorable environmental conditions for potential intermediate hosts of schistosomiasis in Chaco Region. |
| format |
Artículo Artículo publishedVersion |
| author |
Rumi, A. Bechara, J.A. Hamann, M.I. Ostrowski De Núñez, M. |
| author_facet |
Rumi, A. Bechara, J.A. Hamann, M.I. Ostrowski De Núñez, M. |
| author_sort |
Rumi, A. |
| title |
Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| title_short |
Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| title_full |
Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| title_fullStr |
Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| title_full_unstemmed |
Ecology of potential hosts of schistosomiasis in urban environments of Chaco, Argentina |
| title_sort |
ecology of potential hosts of schistosomiasis in urban environments of chaco, argentina |
| publishDate |
2002 |
| url |
http://hdl.handle.net/20.500.12110/paper_00762997_v44_n2_p273_Rumi http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00762997_v44_n2_p273_Rumi_oai |
| work_keys_str_mv |
AT rumia ecologyofpotentialhostsofschistosomiasisinurbanenvironmentsofchacoargentina AT becharaja ecologyofpotentialhostsofschistosomiasisinurbanenvironmentsofchacoargentina AT hamannmi ecologyofpotentialhostsofschistosomiasisinurbanenvironmentsofchacoargentina AT ostrowskidenunezm ecologyofpotentialhostsofschistosomiasisinurbanenvironmentsofchacoargentina |
| _version_ |
1766026639339159552 |