Quality of data collected through the use of camera traps at a number of sites frequented by otters within Cork city

Abstract

Camera trapping is now a very popular method in ecology. It has several recognised limitations, however it is expected with improved methodologies and technology these constraints will lessen. The quality of data collected regarding otters and in general is often questioned. This study aims to assess the usefulness of the data obtained from camera trapping and to provide a framework for using camera traps in urban riparian environments and also to gauge the otter presence in the area. Several other important species were also identified such as the invasive American mink and many birds. The study site is due to under go large scale flood protection measures namely in the form of a large culvert. This study will thus be part of a larger study to examine the overall effects from these measures. Camera trapping was used as otters are a nocturnal, elusive species. Four sites were chosen based on preliminary studies. It was seen that otters are actively using this river mostly at night. Two areas of high use were identified and a suggested area that could be a feeding ground was recommended for future study. A lack of information on the value of mitigation effects was also identified and is a very important area for future research. (WC 208)