| Full text | |
| Author(s): |
Sanches Palasio, Raquel Gardini
[1]
;
Casotti, Marcia Oliveira
[1]
;
Rodrigues, Thamiris Cassia
[1]
;
Tirone Menezes, Regiane Maria
[2]
;
Zanotti-Magalhaes, Eliana Maria
[3]
;
Tuan, Roseli
[1]
Total Authors: 6
|
| Affiliation: | [1] Superintendencia Controle Endemias Estado Sao Paul, Lab Bioquim & Biol Mol, Sao Paulo, SP - Brazil
[2] Superintendencia Controle Endemias Estado Sao Paul, Lab Entomol, Sao Paulo, SP - Brazil
[3] Univ Estadual Campinas, Dept Biol Anim, Sao Paulo, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Biota Neotropica; v. 15, n. 3 JUL-SEP 2015. |
| Web of Science Citations: | 3 |
| Abstract | |
We analyze the current distribution of snails from genus Biomphalaria in the north and south of the coastal fluvial plain in the state of São Paulo, which is part of a large coastal floodplain. Data from twenty-nine collection sites confirmed that the freshwater body in both regions is colonized by Biomphalaria tenagophila and Biomphalaria straminea, which are natural intermediate hosts of Schistosoma mansoni. The abundance of B. straminea in collection sites where only B. tenagophila had previously been recorded indicates the potential for B. straminea to expand in the region. While quantitative analysis of the number of specimens per species showed that local growth of B. tenagophila populations occurs during periods with little rainfall, there is a greater risk of B. tenagophila populations spreading between different water bodies during rainy periods, when heavy rainfall results in water levels rising in the main rivers and flooding caused by water flowing from the Serra do Mar mountain range to the coastal plain. The temperature increase caused by global climate changes and the consequent increasing frequency of high-water levels and floods can be expected to affect the distribution of these snails on the coastal fluvial plain, leading to the risk of a change in the autochthonous transmission pattern of schistosomiasis in the region. (AU) | |
| FAPESP's process: | 07/03458-7 - Microgenomic mapping of Biomphalaria tenagophila (Orbigny, 1838) from the main river basins of the state of São Paulo and Southern Brazil |
| Grantee: | Roseli Tuan |
| Support Opportunities: | Regular Research Grants |