Geographical Distribution of North American Coleopetera

Geographical Distribution of Central American Freshwater Fishes

Ecological correlates of geographical range occupancy in North American birds

Aim The degree to which a species is predictably encountered within its range varies tremendously across species. Understanding why some species occur less frequently within their range than others has important consequences for conservation and for analyses of ecological patterns based on range maps. We examined whether patterns in geographical range occupancy can be explained by species-level...

Epidemiological survey and geographical distribution of cutaneous Leishmaniasis in North Khorasan province, 2006-2013

Background and aims: Leishmaniasis is a widespread problem, especially in the tropical and subtropical countries. Since understanding the epidemiologic and geographical distribution of the diseases is necessary for prevention and controlling the Leishmaniasis. This study was conducted on epidemiological survey of cutaneous Leishmaniasis in North Khorasan Province, using Arc GIS Software during ...

Identifying the paths leading to variation in geographical range size in western North American monkeyflowers

Aim Closely related species can vary tremendously in size of geographical range, yet the causes of such variation are poorly understood. Prominent hypotheses about range size emphasize effects of niche properties and habitat connectivity via the amount and occupancy of suitable habitat, respectively. Previous studies have examined single hypotheses in isolation; however, we assessed the relativ...

epidemiological survey and geographical distribution of cutaneous leishmaniasis in north khorasan province, 2006-2013

background: leishmaniasis is a widespread problem, especially in the tropical and subtropical countries. since understanding epidemiologic and geographical distribution of the diseases is necessary for prevention and control of leishmaniasis. this study was conducted for epidemiological survey of cutaneous leishmaniasis in north khorasan province, using gis during the years 2006-2013.methods: i...