Anthropomorphic Factors Influencing Spanish Conservation Policies of Vertebrates

Table 3

Description and data source of the explanatory variables used in the study.

Variable type	Variables	Data source
	Phylogeny
Nominal	Vertebrates’ class	The Iberian Fauna Project (http://iberfauna.mncn.csic.es/); Species 2000 (http://www.sp2000.org/)
	Vertebrate’s order
	Morphology
Continuous	Length; Relative weight (quotient between weight and length)	Data source for fish’ morphology was obtained from FishBase (http://www.fishbase.org/search.php) and [70].; For amphibians’ morphology, we used García-París et al. [75] and Pleguezuelos et al. [71].; For reptiles’ morphology we used Salvador [76].; For birds’ morphology we used Díaz et al. [77], Martí and del Moral [72], and Tellería et al. [78].; For mammals’ morphology, we used, Palomo et al. [73], and Rodríguez [79]. Additionally, we based Cetacea data in Kiefner [80].
	Relative eye size (quotient between eye size and length)	[81–83]