Baboon group movement, South Africa (data from Bonnell et al. 2016)

Bonnell TR, Dostie M, Clarke PM, Henzi SP, Barrett L. 2017. Baboon group movement, South Africa (data from Bonnell et al. 2016). Movebank Data Repository.
It is generally assumed that high-resolution movement data are needed to extract meaningful decision-making patterns of animals on the move. Here we propose a modified version of force matching (referred to here as direction matching), whereby sparse movement data (i.e., collected over minutes instead of seconds) can be used to test hypothesized forces acting on a focal animal based on their ability to explain observed movement. We first test the direction matching approach using simulated data from an agent-based model, and then go on to apply it to a sparse movement data set collected on a troop of baboons in the DeHoop Nature Reserve, South Africa. We use the baboon data set to test the hypothesis that an individual’s motion is influenced by the group as a whole or, alternatively, whether it is influenced by the location of specific individuals within the group. Our data provide support for both hypotheses, with stronger support for the latter. The focal animal showed consistent patterns of movement toward particular individuals when distance from these individuals increased beyond 5.6 m. Although the focal animal was also sensitive to the group movement on those occasions when the group as a whole was highly clustered, these conditions of isolation occurred infrequently. We suggest that specific social interactions may thus drive overall group cohesion. The results of the direction matching approach suggest that relatively sparse data, with low technical and economic costs, can be used to test between hypotheses on the factors driving movement decisions.
baboon,behaviour,De Hoop Nature Reserve,force matching,movement,Papio hamadryas ursinus,social groups,sparse movement data
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DOIs of related Publications
  title = {Baboon group movement, South Africa (data from Bonnell et al. 2016)},
  author = {Bonnell, TR and Dostie, M and Clarke, PM and Henzi, SP and Barrett, L},
  year = {2017},
  URL = {},
  doi = {doi:10.5441/001/1.t2212r18/1},
  publisher = {Movebank data repository}
ID  - doi:10.5441/001/1.t2212r18/1
T1  - Baboon group movement, South Africa (data from Bonnell et al. 2016)
AU  - Bonnell, Tyler R.
AU  - Dostie, Marcus
AU  - Clarke, Parry M.
AU  - Henzi, S. Peter
AU  - Barrett, Louise
Y1  - 2017/01/03
KW  - baboon
KW  - behaviour
KW  - De Hoop Nature Reserve
KW  - force matching
KW  - movement
KW  - Papio hamadryas ursinus
KW  - social groups
KW  - sparse movement data
KW  - Papio hamadryas ursinus
PB  - Movebank data repository
UR  -
DO  - doi:10.5441/001/1.t2212r18/1
ER  -