| the ecology of colorado tick fever in rocky mountain national park in 1974. ii. infection in small mammals. | field studies of colorado tick fever (ctf) in small mammals in rocky mountain national park (rmnp) in 1974 established that eutamias minimus and spermophilus lateralis were the most important hosts for ctf virus and were the source of virus for immature stages of the tick vector, dermacentor andersoni. other species (peromyscus maniculatus, spermophilus richardsonii, eutamias umbrinus) are secondary hosts. the intensity of viral activity in rodents varied greatly from locality to locality. highe ... | 1981 | 6263122 |
| novel potential reservoirs for borrelia sp. and the agent of human granulocytic ehrlichiosis in colorado. | previous work demonstrated that ixodes spinipalpis ticks maintained an enzootic cycle of borrelia bissettii and the agent of human granulocytic ehrlichiosis (aohge) within woodrats (neotoma mexicana) and deer mice (peromyscus maniculatus) in northern colorado (usa). because i. spinipalpis is the only known vector of b. bissettii and aohge in colorado, this study was designed to determine the reservoir status of other hosts of i. spinipalpis in five distinct ecological zones along the front range ... | 2002 | 12038153 |
| stochastic population dynamics of a montane ground-dwelling squirrel. | understanding the causes and consequences of population fluctuations is a central goal of ecology. we used demographic data from a long-term (1990-2008) study and matrix population models to investigate factors and processes influencing the dynamics and persistence of a golden-mantled ground squirrel (callospermophilus lateralis) population, inhabiting a dynamic subalpine habitat in colorado, usa. the overall deterministic population growth rate λ was 0.94±se 0.05 but it varied widely over time, ... | 2012 | 22479616 |