caa a22 4500 605542090 CHVBK 20210128100919.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10071-014-0831-3 doi (NATIONALLICENCE)springer-10.1007/s10071-014-0831-3 Local enhancement and social foraging in a non-social insular lizard [Elektronische Daten] [Ana Pérez-Cembranos, Valentín Pérez-Mellado] Even in solitary foragers, conspecifics can provide reliable information about food location. The insular lizard Podarcis lilfordi is a solitary species with high population densities that sometimes aggregate around rich food patches. Its diet includes novel and unpredictable resources, such as carcasses or plants, whose exploitation quickly became widespread among the population. We tested the use of social information by lizards through some field experiments in which they had to choose one of the two pieces of fruit. Probably due to local enhancement, lizards preferred to feed on the piece of fruit where conspecifics or lizard-shaped models were already present. Conspecifics' behaviour, but also their mere presence, seems to be a valuable source of information to decide where to feed. Lizards also showed a strong attraction to conspecifics, even in the absence of food. Maybe the presence of a group is interpreted as an indirect cue for the presence of food. The group size was not important to females, but males had a significantly higher attraction towards groups with three conspecifics. We discuss some characteristics of P. lilfordi at Aire Island that can explain the development of the observed social foraging, as well as their possible consequences. Springer-Verlag Berlin Heidelberg, 2014 Social information nationallicence Foraging behaviour nationallicence Conspecific attraction nationallicence Islands nationallicence Podarcis lilfordi nationallicence Pérez-Cembranos Ana Department of Animal Biology, Universidad de Salamanca, Campus Miguel de Unamuno, s/n., 37007, Salamanca, Spain aut Pérez-Mellado Valentín Department of Animal Biology, Universidad de Salamanca, Campus Miguel de Unamuno, s/n., 37007, Salamanca, Spain aut Animal Cognition Springer Berlin Heidelberg 18/3(2015-05-01), 629-637 1435-9448 18:3<629 2015 18 10071 https://doi.org/10.1007/s10071-014-0831-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10071-014-0831-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pérez-Cembranos Ana Department of Animal Biology, Universidad de Salamanca, Campus Miguel de Unamuno, s/n., 37007, Salamanca, Spain aut NATIONALLICENCE 700 1- Pérez-Mellado Valentín Department of Animal Biology, Universidad de Salamanca, Campus Miguel de Unamuno, s/n., 37007, Salamanca, Spain aut NATIONALLICENCE 773 0- Animal Cognition Springer Berlin Heidelberg 18/3(2015-05-01), 629-637 1435-9448 18:3<629 2015 18 10071