Headbob displays signal sex, social context and species identity in a Liolaemus lizard: Supplementary Material
Natalin S. Vicente
10.6084/m9.figshare.5943259.v1
https://brill.figshare.com/articles/dataset/Headbob_displays_signal_sex_social_context_and_species_identity_in_a_Liolaemus_lizard_Supplementary_Material/5943259
<p>Animal
communication has a key role in animals
and identifying the signals’ function is crucial.
Most lizards communicate with each other
through visual signals with headbob
displays, which are up-and-down movements of the head or the anterior part of
the body. In the present work, I described and analysed
the headbob displays of <i>Liolaemus pacha</i>
lizards in their natural habitat. Specifically, the objectives were to describe
the form of headbobs, to analyse their structure and to compare between
sexes and social contexts. Adult lizards were video-recorded, registering the
sex and the social context, classified as broadcast, same-sex and female-male
interactions. The form and structure of sequences and headbobs were obtained. To
evaluate the effect of sex and social context on the structure of headbob
sequences and on headbob bouts, generalized linear mixed models were made. Intersexual differences were found in headbob display
frequency and in the structure of headbob sequences. Lizards in same-sex
context made sequences with more bouts, shorter intervals, headbob bouts of
longer duration and higher amplitude than broadcast and female-male context. Presence of concurring behaviour
such as lateral compression, gular expansion, and back arching occurred
simultaneously with headbobs in same-sex context.
<i>Liolaemus
pacha</i> made four different headbob bout
forms, and males were characterised by using
bouts A and B, whereas females used bouts D more frequent. Sex and social
context influenced only the structure of bouts A and B. The results showed that
bouts A and B might be multi-component
signals and non-redundant. </p>
2018-03-02 11:15:41
behaviour
communication
multicomponent
non-redundancy
visual signal
Animal Behaviour
Behavioural Ecology
Ethology and Sociobiology