Ethogram. Iris Weiche, University of Tübingen, Social relationships in captive female gorillas. 1994-2000.
behavioral categorie, behavior |
Definition |
I) Affiliations |
|
*1. social grooming |
Scanning the fur of another individual with hand/fingers or lips. |
#2. solicitation for grooming |
Individual approaches another and presents a part of its body (e.g. back). |
*3. social play |
Positive interaction of two or more individuals in different movement stages, typical accompanied by play face (mouth wide opened, lower tooth rows well visible, upper usually covered). sometimes combined with typical vocalization (chuckle). Einzelbouts: more than 60 seconds interruption. |
#4. play offer |
An individual animates another individual through directed views with simultaneous behavior as chest beats, running with checking over the shoulder, self-play or by direct contact to the social play. |
*5. huddle |
Two individuals are sitting or lying for more than 10 seconds in direct body contact, whereby the arms of one or both individuals are bolted around the body of the other one. |
*6. resting contact |
Two individuals touch each other with a part of their body and/or distance is below 20 cm. |
#7. friendly touch |
Direct, mostly short contact by hand or arm, often combined with a short belch/grumble of the acting individual or the recipient with mutually relaxed facial expression. |
*8. muzzle-muzzle |
One individual approaches with face/nose/mouth up to 15 cm to the face of the other individual.. |
*9. tandem walk |
An individual has clung one or both arms around the hips or back of another individual and walks bipedally after the other. |
II) Sexual behavior |
|
#10. genital inspektion |
|
a) touch |
An individual touches the ano-genital region of another individual and sniffs or licks the touching finger afterwards. |
b) sniff |
An indidivual approaches the ano-genital region of another individual with ist nose. |
*11. copulation imitation |
|
a) Ventro-ventral or b) ventro-dorsal |
Body attitude of two individuals, whereby the upper individual implements hips rhythm impacts without intromission and often without direct contact of the ano-genital region. |
#12. mating solicitation |
Female intensely stares at the male with direct eye contact or repeated head yerk. The body attitude of the female is strained motionless with usually stiff arms and legs, body axis oriented towards the male, lips pursed, grumble vocalization. |
#13. presenting |
Female approaches male, offers him her ano-genital region towards his ventrum, hindquaters slightly elevated. Body weight is resting on arms and knees. |
*14. mating |
Contact of males and females (ventro-dorsal or ventro-ventral) with intromission and rhythmic hip impacts of the male. Often accompanied by vocalization byone or both individuals. Usually the female looks at the male over its shoulder. Sometimes at the end of a mating a negative push from the male towards the female follows. |
III) Submissive behavior |
|
#15. avoid |
An individual goes out of the way of another individual or makes a detour. |
#16. turn away |
An individual orientates its body away from another individual, but does not leave ist place |
#17. retreat |
An individual leaves ist place following the approach of another one or after ist has been pushed away by the other. |
*18. crouch |
An individual bends low, being attacked by another individual and remains motionless with the shoulders pulled to the head. |
*19. flight |
An individual runs away from a following aggressor. |
IV) Agonistic behavior |
|
#20. supplant context:
|
An individual approaches another and sometimes pushes the second individual directly with the hand. The second individual thereupon leaves its place (retreat). The first individual takes this place. |
#21. object steal
|
One individual takes the object of desire away from a second individual. |
*22. directed imposing behavior
|
Sequence or simultaneous occurrence of several behavioral elements against another individual without direct physical contact, arranged according to intensity level. |
a) tensed lip face |
Upper and lower mouth region are tensely pressed. |
b) stiff stand |
Individual stands with rigidly held legs and arms, body stiff and erected, raised head. Elbows are outward arranged and weight of the front body lies on the knuckels. Legs are laterally far apart, tensed lips face, head yerk. |
c) chest beat |
Individual strikes repeated with cupped palms on its thorax, standing, going or running, usually also with vocal component (roar). Often a leg kick follows. |
d) strut walk |
Individual moves with short, stiff steps, accompanied by tensed lips. |
f) object beat |
Individual kicks or beats an object, which creates a loud sound. Mostly in combination with a locomotory component |
g) object throw |
Individual throws object either direted or non-directed.. |
h) bluff charge |
Individual runss diagonal acorss a second individual without contact. Often combined with chest-beat, object beat/throw or vocalization (roar). |
i) rush charge |
Individual runs frontally towards a second one, but shortly stops before reaching it. |
*23. harrassment |
An individual quickly moves towards a second, body and head oriented straight forward and directly staring at the other. Combined with piggrunt-series. |
*24. chase |
An individual runs, following a fleeing second individual. |
V) Physical agression |
|
#25. negative touch |
Slapping, pushing, boxing a second individual. |
#26. beat |
Hit/beat another individual with flat hand, mostly combined with locomotion towards the beaten individual and afterwards quickly leaving it. |
#27. mock bite |
Aggressor demonstrates a bite onto another individual, which is mostly crowching, without deeper penetration of the teeth. |
#28. bite |
Penetration of the teeth of aggressor into the flesh of the receiver. wounding visible afterwards. |
*29. fight |
Intense wrestling of two or more individuals with open mouth and attemps to bite. Mostly accompanied by piggrunt vocalizations and screams. |
#30. kidnapping |
An infant is carried away from its mother against the mother’s aggreement. |
VI) Behavior in multi-context |
|
*31. goes to |
An individual moves towards an other individual. |
*32. goes away |
Individual leaves another individual.. |
*33. follow |
One individual follows a second one, mostly in relaxed manner. |
*34. child carry |
Infant is carried by another individual than the mother, but with her aggreement. |
#35. child giving |
An individual gives infant to a second individual. |
#36. intervention a) undirected
|
An individual takes position in an agonistisch interaction between two other individuals. |
*37. out of sight |
Individual not visible to observer. |
VII) Vocalization (Definitions see Fossey 1972) #38. belch/grumble #39. scream #40. cough #41. piggrunt |
positive negative fear vocalization negative upset vocalization negative aggression vocalization |
VIII) Solitary behavior |
|
*42. undirected imposing behavior |
Here defined as direct follow-up or simultaneous expression of one or more behavioral elements, which are interpreted as intimidation displays, however, not directed towards a certain individual. |
*43. solitary play |
Self-manipulation or manipulation of an object. |
*44. eating |
Food intake without locomotion. |
*45. foraging |
Collecting and sometimes admission of food while locomoting. |
*46. locomotion |
Individual changes place. |
*47. resting |
Individual stays at one place longer than two minutes in a relaxed manner (sit, lie, sleep) |
*48. observing |
An individual observes a second one relaxed longer than 10 seconds. |
*49. staring |
Individual stares at another for more than 5 seconds, with attentive facial expression. |
IX) Inter-individual distances |
|
resting contact |
see nr. 6 |
*50. close distance |
Individuals are in arms reach (<1-1.5m). |
*51. short distance |
Distance between individuals is 1.5-3m. |
*52. middle distancez |
Distance between individuals is 3-7m. |
*53. far distant |
Distance between individuals is 7-15m. |
*54. external |
An individual roams outside the group circle or is out of view to the group. However, it might have shorter distances to other individuals, who are also out of sight. |
*: states (duration and frequency were scored), #: events (only frequency scored).