Patch-use dynamics by a large herbivore.

摘要: An adaption of the optimal foraging theory suggests that herbivores deplete, depart, and finally return to patches leaving time for regrowth [van Moorter et al., Oikos 118:641–652, 2009]. Inter-patch movement memory then produce a periodic pattern use may define bounds home range. The objective this work was evaluate underlying movements within ranges elk (Cervus elaphus) according predictions theory. Using spatial temporal permutation scan statistic identify from GPS relocations cow elk, we evaluated patterns during 2012 growing season. Subsequently, used negative binomial regression assess environmental characteristics affect frequency returns, thereby characterize most successful patches. We found known regularly over season, on average after 15.4 (±5.4 SD) days. Patches in less-rugged terrain, farther roads with high productivity were returned often when controlling each patch elk. Instead diffusion processes describe animal movement, our research demonstrates make directed valuable sites and, as support Van al.’s [Oikos 2009] model, submit these could be an integral part home-range development wild ungulates.