TY - JOUR
T1 - Statistical analysis of habitat distribution of host-seeking vector mosquitoes of human diseases based on land cover composition
T2 - Case study of vector inhabitation along the eastern coast of Lake Biwa, Japan
AU - Yonejima, Mayuko
AU - Nakaya, Tomoki
AU - Watanabe, Mamoru
AU - Nihei, Naoko
AU - Tsuda, Yoshio
AU - Kobayashi, Mutsuo
N1 - Funding Information:
Acknowledgements This study was supported by the Medical Research Council of Canada (MT-11876) and Heart and Stroke Foundation of Quebec. Chantale Simard is the recipient of a s tu-dentship from the Fonds pour la Formation de Chercheurs et l'Aide aÁ la Recherche (FCAR) and MDS Pharma Services. Jacques Turgeon was the recipient of a scholarship from the Joseph C. Edwards Foundation. The authors als o thank Michel Blouin, for technical assistance, Josée Morin for stastistical analysis and Vicky Falardeau and Nicole Garneau for nursing care. The study as desc ribed in this article complies fully with the current laws regarding experiments involving humans in Canada.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - This study examined the determinants of spatial variation of host-seeking vector mosquitoes of Japanese encephalitis, Culex tritaeniorhynchus, and malaria vector mosquitoes, the Anopheles sinensis group, to estimate the distribution of mosquito habitats along the eastern coast of Lake Biwa, Japan. Data for the statistical analysis were obtained from a mosquito survey conducted using 20 traps during May to October 2009. For explanatory variables, we constructed a dataset of land cover in the study area by classifying satellite images of ALOS. We employed partial least squares (PLS) regression to analyze the relationship between the number of mosquitoes collected and land cover composition around trap sites. The results indicate that the number of host-seeking Cx. tritaeniorhynchus was larger when the areal components of the rural-agricultural landscape (e.g., paddy fields) were larger around the trap sites. For the An. sinensis group, the number of host-seeking mosquitoes was larger when the areal components of the wetland landscape (e.g., water bodies and reed beds) were larger around the trap sites. The potential habitat maps derived by fitting the PLS regression model into a GIS environment indicated that suitable habitats for Cx. tritaeniorhynchus are mainly distributed across plains and that for the An. sinensis group are concentrated around water bodies. We interpreted these results to mean that the distribution of the estimated potential habitats of host-seeking mosquitoes reflects the behavioral response of mosquitoes to spatially heterogeneous environments. Thus, the mapping of potential habitats estimated using datasets of vector mosquitoes and land cover may provide fundamental information for planning effective control strategies for vector mosquitoes.
AB - This study examined the determinants of spatial variation of host-seeking vector mosquitoes of Japanese encephalitis, Culex tritaeniorhynchus, and malaria vector mosquitoes, the Anopheles sinensis group, to estimate the distribution of mosquito habitats along the eastern coast of Lake Biwa, Japan. Data for the statistical analysis were obtained from a mosquito survey conducted using 20 traps during May to October 2009. For explanatory variables, we constructed a dataset of land cover in the study area by classifying satellite images of ALOS. We employed partial least squares (PLS) regression to analyze the relationship between the number of mosquitoes collected and land cover composition around trap sites. The results indicate that the number of host-seeking Cx. tritaeniorhynchus was larger when the areal components of the rural-agricultural landscape (e.g., paddy fields) were larger around the trap sites. For the An. sinensis group, the number of host-seeking mosquitoes was larger when the areal components of the wetland landscape (e.g., water bodies and reed beds) were larger around the trap sites. The potential habitat maps derived by fitting the PLS regression model into a GIS environment indicated that suitable habitats for Cx. tritaeniorhynchus are mainly distributed across plains and that for the An. sinensis group are concentrated around water bodies. We interpreted these results to mean that the distribution of the estimated potential habitats of host-seeking mosquitoes reflects the behavioral response of mosquitoes to spatially heterogeneous environments. Thus, the mapping of potential habitats estimated using datasets of vector mosquitoes and land cover may provide fundamental information for planning effective control strategies for vector mosquitoes.
KW - Anopheles sinensis group
KW - Culex tritaeniorhynchus
KW - Eastern coast of Lake Biwa
KW - Partial least squares regression
KW - Potential habitat map
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M3 - Article
AN - SCOPUS:84928943973
VL - 88
SP - 138
EP - 158
JO - Geographical Review of Japan, Series B
JF - Geographical Review of Japan, Series B
SN - 0289-6001
IS - 2
ER -