Domestic and wild native herbivores combined are still overgrazing Patagonia rangelands: A response to Marino et al. (2019)

1.    Oliva et al. (2019) based upon primary productivity estimates concluded that, after long periods of overgrazing, Patagonia´s domestic stocks adjusted to regional-scale herbivore carrying capacity at the end of last century. Guanaco populations, a native camelid, increased thereafter driving combined grazing pressures once again over carrying capacity in some areas.
2.    Marino, Rodriguez and Schroeder (2019) argued that domestic grazing is not really at equilibrium because domestic stocks are concentrated in areas that remain overgrazed. They support the idea that guanacos auto-regulate their density by resource-defence territoriality and are weak competitors with domestic herbivores, occupying marginal areas. In their view Oliva et al. (2019) put guanacos in the role of scapegoats, leaving domestic stocks unchecked. 
3.    Equilibrium at regional scale does not preclude over and under-grazing at smaller (local) scales. By separating areas with and without domestic stocks Marino ..., This data set of Guanaco (Lama guanicoe) presents  the results of 323 km of ground surveys performed in southern Patagonia. They were subdivided in  361 transects from 0.8 to 10 km in length designed to evaluate guanaco density in 13 farms with a total area of  4,740 km2. Guanaco groups were spotted along the transects using Bushnell 10x25 1000 laser telemeter. Data is presented in an excel .xls file that includes the variables: Farm (name); Farm area (km2); Date of survey; Transect n°; Length of transect (km); Latitude and  Longitude in degrees, minutes, seconds (Datum WGS84); Latitude (X) and Longitude (Y) in Transverse Mercator coordinates (Central meridian -69, False northing 10001965.73 m) of the vehicle position, Azimuth of the road (angle of deviation of the road direction in degrees, where north=0); Angle (deviation of the guanaco group in relation to the main road direction in degrees); Distance to the guanaco group (measured by laser distanciometer, meters), Number of guanacos..., There are missing values in the transect names in the Los Machos farm rows 1174-1250