Avaliação sorológica para detecção de anticorpos anti-Leishmania em cães e gatos no bairro de Santa Rita de Cássia, Município de Barra Mansa, Estado do Rio de Janeiro Serological evaluation for detection of anti-Leishmania antibodies in dogs and cats in the district of Santa Rita de Cássia, municipality of Barra Mansa, State of Rio de Janeiro

A partir de um caso canino de leishmaniose tegumentar americana na localidade de Santa Rita de Cássia, município de Barra Mansa, Rio de Janeiro, foi realizado um inquérito sorológico em 177 cães e 43 gatos. Na avaliação das amostras de soros caninos, 10% foram positivos na reação de imunofluorescência indireta e 10,7% no ensaio imunoenzimático. Entre as amostras de soros felinos testados, nenhum animal foi positivo na reação de imunofluorescência indireta e apenas um (2,4%) felino apresentou reação positiva ao ensaio imunoenzimático. A detecção de Leishmania braziliensis, autóctone em Barra Mansa, faz um alerta para a instalação de um possível foco de leishmaniose tegumentar americana nessa região.<br>From a canine case of american cutaneous leishmaniasis in the locality of Santa Rita de Cássia, municipality of Barra Mansa, Rio de Janeiro, a serological survey was performed on 177 dogs and 43 cats. Evaluation of the canine serum samples showed that 10% had a positive reaction in the indirect immunofluorescence test and 10.7% in the enzyme-linked immunosorbent assay. Among the feline serum samples tested, none of the animals had a positive reaction in the indirect immunofluorescence test and only one (2.4%) showed a positive reaction in the enzyme-linked immunosorbent assay. The detection of an autochthonous case of Leishmania braziliensis in Barra Mansa gives warning that a focus of american cutaneous leishmaniasis is possibly becoming established in this region

Pest species distribution modelling: origins and lessons from history

Pest species distribution modelling was designed to extrapolate risks in the biosecurity sector in order to protect agricultural crops against the spread of both endemic and introduced pest species. The need to identify sources of biological control agents for importation added to this demand. Independently, biogeographers mapped species distributions to interpolate their niche requirements. Recently the threat of climate change caused an explosion in demand for guidance on likely shifts in potential distributions of species. The different technology platforms in the two sectors resulted in divergence in their approaches to mapping actual and potential species distributions under rapidly changing environmental scenarios. Much of the contemporary discussion of species mapping ignores the lessons from the history of pest species distribution modelling. This has major implications for modelling of the non-equilibrium distributions of all species that occur with rapid climate change. The current review is intended to remind researchers of historical findings and their significance for current mapping of all species. I argue that the dream of automating species mapping for multiple species is an illusion. More modest goals and use of other approaches are necessary to protect biodiversity under current and future climates. Pest risk mapping tools have greater prospects of success because they are generic in nature and so able to be used both to interpolate and to extrapolate from field observations of any species based on climatic variables. In addition invasive species are less numerous and usually better understood, while the risk assessments are applied on regional scales in which climate is the dominant variable