Mapping long-term spatial trends of the Taimyr wild reindeer population
Keywords:long-term observations, mapping, migration, Russia, spatial dynamics, Taimyr, wild reindeer
AbstractThis report presents preliminary results of mapping and analyzing wild reindeer spatial dynamics in Taimyr, Russia. We collected, spatially referenced, and systematized comprehensive aerial and land survey information spanning from 1969 to 2003, which is the most complete long-term data available about a wild reindeer herd in Eurasia. The report introduces some of the mapping products and presents a summary of our observations on spatiotemporal changes in reindeer distribution and migration. Using these data and new digital products in the GIS (Geographic Information Systems) environment, we were able to observe the long-term shift of the Taimyr Reindeer Herd's summer, winter, and calving areas to the east and south with a simultaneous expansion of the habitat. We identified and confirmed locations of large reindeer concentrations (herds) seasonally formed throughout the study period. Using the most recent summer survey data (2009) we also were able to confirm the existence of two major migration flows in the fall: eastern (most reindeer) and western.
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