Use of C amera T rapping in D e T ermining i berian L ynx p op UL a T ion p arame T ers : T he Use a rea an D iT s Limi T a T ions

Below are the results of the survey of the Iberian lynx obtained with cameratrapping between 2000 and 2007 in Sierra Morena. Two very important aspects of camera-trapping concerning its efficiency are also analyzed. The first is the evolution along years according to the camera-trapping type used of two efficiency indicators. The results obtained demonstrate that the most efficient lure is rabbit, though it is the less proven (92 trapnights), followed by camera-trapping in the most frequent marking places (latrines). And, we propose as a novel the concept of use area as a spatial reference unit for the camera-trapping monitoring of non radio-marked animals is proposed, and its validity discussed.