生态系统与生态学杂志

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Analytical Test On The Environmental Constraints Related To Accidents With The Lonomia Obliqua Walker 1855, In Southern Brazil

Claudia Moreira Garcia

This paper is an analytical essay on the study of environmental conditions, related to accidents with the Lonomia obliqua Walker, 1855. From the considerations raised by the various researchers, about what’s next for leading to the increase in the number of accidents with this insect was doing a survey seeking to understand how environmental aspects represented by population growth, urban growth, the change of use and coverage of the soil and climate can act in its development. For this structured a survey covering six municipalities in the southern region, and two of each State (Parana, Santa Catarina and Rio Grande do Sul). He has been trying to work with the notifications that are indicative of the number of accidents with the L. obliqua. A study was elaborated within the geographical environmental health vision, taking into account the study prepared by Max Sorre, Pathogenic complex. It was used as the ecogeography methodology, which focuses on the relationship man-nature. With census data (1980,1991, 2000 and 2010), satellite imagery (time trial) and climate data, we tried to understand the interference of these elements in the increase in the number of accidents from 1989 to 2009. Although we have not done the field count of insects, the assumption that the increase in the number of accidents can be indirectly indicating the increase in the number of its population. It was found that the population growth, will be related to greater proximity with the insect population, since this promotes the urban growth and this the occupation of new areas, reducing the insect’s natural environment, leaving the population more susceptible to accidents. With respect to the climate it was observed that there is a constant in temperature values in the municipalities, ranging between 20ºC and 25ºC. Another factor noted was an increase in the volume of rainfall, caused by the action of El Niño and La Niña phenomena that cause an increase in soil moisture. This increased moisture can be acting in insect development and consequently the largest number of accidents.