Guanaco abundance and monitoring in Southern Patagonia: distance sampling reveals substantially greater numbers than previously reported

Zoological Studies

Table 1 Sampling effort and sightings across classes of expected relative abundance of guanacos

Guanaco relative abundance	Sampling effort (km)	Area (km ² )	Contacts with guanacos
Guanaco relative abundance	Sampling effort (km)	Area (km ² )	Breeding groups	Non-breeding groups	Solitary individuals	Undetermined	Total
Low	2,314	59,306	13 (92)	21 (283)	31	8 (18)	73 (424)
Medium	4,149	86,789	119 (1,125)	152 (1,575)	167	100 (239)	538 (3,106)
High	1,678	76,450	71 (739)	123 (1,424)	126	60 (146)	380 (2,435)
Total	8,141	222,545	203 (1,956)	296 (3,282)	324	168 (403)	991 (5,965)

Distribution of sampling effort, in terms of road length and area surveyed, and number of contacts with guanacos (individuals within brackets) in three classes of expected guanaco relative abundance in Santa Cruz province, southern Patagonia, during the 2004 and 2005 breeding seasons.