title: Spatial modelling of Lutzomyia (Nyssomyia) whitmani s.l. (Antunes & Coutinho, 1939) (Diptera: Psychodidae: Phlebotominae) habitat suitability in the state of Mato Grosso, Brazil.
abstract: Lutzomyia (Nyssomyia) whitmani s.l.is the main vector of cutaneous leishmaniasis in state of Mato Grosso, but little is known about environmental determinants of its spatial distribution on a regional scale. Entomologic surveys of this sand fly species, conducted between 1996 and 2001 in 41 state municipalities, were used to investigate the relationships between environmental factors and the presence of the species, and to develop a spatial model of habitat suitability. The relationship between averaged CDC light trap indexes and 15 environmental and socio-economic factors were tested by logistic regression (LR) analysis. Spatial layers of deforestation tax and the Brazilian index of gross net production (IGNP) were identified as significant explanatory variables for vector presence in the LR model, and these were then overlaid with habitat maps. The highest habitat suitability in 2001 was obtained for the heavily deforested areas in the Central-North, South, East, and Southwest of Mato Grosso, particularly in municipalities with lower IGNP values.
authors.affiliation: Departamento de Geografia, Universidade Federal do Mato Grosso, Cuiabá, MT, Brasil. pitalike@terra.com.br
authors.forename: Peter
authors.initials: P
authors.lastname: Zeilhofer
authors.forename: Olga Patrícia
authors.initials: OP
authors.lastname: Kummer
authors.forename: Emerson Soares dos
authors.initials: ES
authors.lastname: Santos
authors.forename: Ana Lúcia Maria
authors.initials: AL
authors.lastname: Ribeiro
authors.forename: Nanci Akemi
authors.initials: NA
authors.lastname: Missawa
mesh_terms: D000818:Animals; D001938:Brazil; D017753:Ecosystem; D005843:Geography; D007303:Insect Vectors / Q000145:classification*; D016015:Logistic Models; D008954:Models, Biological; D011156:Population Density; D011157:Population Dynamics; D011576:Psychodidae / Q000145:classification*; D012621:Seasons; D014197:Trees