naa a22 4500 510745121 CHVBK 20180411083043.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s13364-013-0130-4 doi (NATIONALLICENCE)springer-10.1007/s13364-013-0130-4 Geospatial analysis of giant liver flukes among moose: effects of white-tailed deer [Elektronische Daten] [William Peterson, Murray Lankester, John Kie, R. Bowyer] Natural infections of giant liver flukes (Fascioloides magna) occur primarily in cervids and bovids. In northeastern North America, a common definitive host for giant liver flukes is the white-tailed deer (Odocoileus virginianus). Giant liver flukes cannot reproduce in moose (Alces alces) and eventually die, but only after causing extensive tissue damage in the liver. We used data on the occurrence of giant liver flukes in adult moose collected between 1972 and 2000 from northeastern Minnesota, USA. These data were recorded by 93km2 sampling units (square grid of 9.66km on each side). Sample sizes varied between 0 and 45 adult moose examined per sampling unit. We fitted a second-order global polynomial model to adjust for trends in the occurrence of flukes across the study area, modeled the de-trended data using a circular semi-variogram model, and finally kriged our data, arriving at a predicted response surface for the occurrence of liver flukes in moose. Correlational analyses indicated that the occurrence of liver flukes in moose was influenced more by the density of white-tailed deer based on rates of hunter harvest (r = 0.54) than was the proportion of wetland habitats (r = 0.25). Ordinary least-squares multiple regression (R adj = 0.29, AICc = 795.3) documented a strong relationship between the occurrence of liver flukes in moose and population density of white-tailed deer (p < 0.001) but a weaker relationship for wetland habitats (p = 0.16). A geographically weighted multiple regression produced a stronger relationship (R adj = 0.60, AICc = 765.7). Disease maps, as we developed here, are a useful geospatial tool that has relevance for understanding disease processes in moose that may be extended to other mammals. Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland, 2013 Moose nationallicence Alces alces nationallicence Disease mapping nationallicence Fascioloides magna nationallicence Geospatial analyses nationallicence Giant liver fluke nationallicence White-tailed deer nationallicence Odocoileus virginianus nationallicence Peterson William Minnesota Department of Natural Resources, 4541 Lake Creek Road, 59935, Troy, MT, USA aut Lankester Murray Lakehead University, 101-2001 Blue Jay Place, Courtenay, British Columbia, Canada aut Kie John Department of Biological Sciences, Idaho State University, 921 South 8th Avenue, Stop 8007, 83209, Pocatello, ID, USA aut Bowyer R. Department of Biological Sciences, Idaho State University, 921 South 8th Avenue, Stop 8007, 83209, Pocatello, ID, USA aut Acta Theriologica Springer Berlin Heidelberg 58/4(2013-10-01), 359-365 0001-7051 58:4<359 2013 58 13364 https://doi.org/10.1007/s13364-013-0130-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s13364-013-0130-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Peterson William Minnesota Department of Natural Resources, 4541 Lake Creek Road, 59935, Troy, MT, USA aut NATIONALLICENCE 700 1- Lankester Murray Lakehead University, 101-2001 Blue Jay Place, Courtenay, British Columbia, Canada aut NATIONALLICENCE 700 1- Kie John Department of Biological Sciences, Idaho State University, 921 South 8th Avenue, Stop 8007, 83209, Pocatello, ID, USA aut NATIONALLICENCE 700 1- Bowyer R. Department of Biological Sciences, Idaho State University, 921 South 8th Avenue, Stop 8007, 83209, Pocatello, ID, USA aut NATIONALLICENCE 773 0- Acta Theriologica Springer Berlin Heidelberg 58/4(2013-10-01), 359-365 0001-7051 58:4<359 2013 58 13364 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer