Viewing page 111 of 264

This transcription has been completed. Contact us with corrections.

74

Try to find animal but can't.

NOTE: Sakis are being much quieter here than in June. I.E. showing less aggressiveness to pot. preds. Probably because they are not breeding now. If so, this would indicate that their intra- and inter-specific aggressiveness is qualitatively identical (or inseparably linked). 

Rain starts 8:42 am!  Stops 9:35 am.

10:10 Aristides shows me a fruit which he says is eaten by Sakis. Quite large, yellow, mango-like in appearance. Stem is thick and almost shell-like. Whitish pulp inside.

10:18 am. Region of mixed forest. Come across single Saki. 60 ft up tall tree.  Utters Roars, L Trills, then a series of L Trills ending in Grunts or muffled Roars, then more L Trills, then another Roar, then more L Trills as it rests. Stays 60-80 ft up during retreat.  

Stopping observations 10:35 am.

COMMENTS: I am not sure that I have described the ecological differences among (habitat preferences of) Pithecia, Callicebus, and S. fuscicollis very clearly with preceding pages. Perhaps they should be summarized again.

(1) Sakis can occur in high (mature) forest In the high trees themselves. Tamarins can occur in the same general areas. But they tend to prefer edges and patches of second growth scattered among the older trees. Titis apparently do not occur in these regions at all.

(2) All three species can occur in second growth. Or possibly mature forests which resemble second growth in physiognomy. 

Transcription Notes:
. last word completed from following page per Smithsonian