Response to Joly et al. (2006), A Reevaluation of Caribou Distribution Near an Oilfield Road on Alaska's North Slope

Abstract

Joly et al. (2006) critically reviewed our paper (Noel et al. 2004) describing caribou (Rangifer tarandus) distribution data in relation to an oilfield road in Alaska, USA. Their review focused on 4 primary points: 1) we concluded there were no adverse impacts to caribou distribution, 2) we failed to discuss data that revealed caribou abandoned the study area following additional development of gravel roads and pads, 3) we failed to consider expanding infrastructure and some surveys, and 4) our conclusions contradict others' findings. We did not draw conclusions, but rather presented our data and analyses and discussed possible explanations for our observations. We presented all of the original data showing a decline in caribou use of the area during calving and discussed potential influential factors. We discussed our method and rationale for the focus of our analysis on displacement from the Milne Point Road in order to replicate methods used in an earlier study. The fourth point reflects that we simply had different results from those of other studies.