Scans monitoring Callicebus nigrifrons

Ecological data collected by scan sample of 6 groups of Black-fronted
titi monkeys Callicebus nigrifrons at the Santuario do Caraça, in
2015-2016.

Site description:

See a description of the study site at
https://onlinelibrary.wiley.com/doi/full/10.1002/ajp.23335 (pdf
available on demand)

Study subjects:

6 groups of wild titi monkeys. Group composition is available in the
'Read me' sheet of the dataset.
Groups were habituated to human researchers between 2004 and 2014, and
were all completely habituated at the beginning of the data collection.

Data collection:

Data collection took place from Oct 2015 to Aug 2016, for a total of 925
hours. Each group was monitored at least 4 days/month. Groups were
monitored from dawn, for at least 6h/day, by a team of two researchers.

Every 10 minute, a scan sampling were performed, to collect:

-Identity (which can be linked to age and sex) of the individual

-Its behaviour

-Its vegetation strata

-Its height (distance from the ground)

-GPS coordinates of the centre of the group (available on demand)

A total of 6 researchers collected data. The training of new researchers
was performed by the same researchers (MB and GM) but no inter-observer
reliability test was conducted. The first month of data collection of
each new researcher is not included in the final dataset (to remove the
potential errors due to the learning process from the final dataset).

More information about the groups and the protocol can be found here
http://doc.rero.ch/record/324643 or on demand.