NO. 3595 ANOLIS LINEATOPUS — RAND 53 



13 February. Both Nos. 162 and 145 are seen in east brush heap. They 

 are about one foot apart, lateral to one another, with tliroats gorged and sides 

 flattened. Both bob. No. 162 moves back and forth at right angles to No. 145 

 and bobs several times. No. 145 moves to the perch she uses most when she 

 visits east brush heap. No. 162 moves south away from No. 145, and then back 

 past her and out of this section of the brush heap entirely. 



Today again No. 162 spends quite a bit of time after this dispute with No. 145 

 northeast of the section of the brush heap where it occurred and is seen chasing a 

 smaller resident lizard on a fence post which No. 162 has previously seldom visited. 



15 February. No. 145 comes from the brush heap north of tree and chases 

 No. 162 out of the brush heap east of tree. No. 162 flees northeast. This is the 

 first time I have seen No. 145 come to this section of the brush heap expressly to 

 chase No. 162. 



20 February. No. 145 comes from north of tree to the east brush heap to 

 display to No. 162. No. 162 flattens sides and gorges throat but runs and then 

 down into brush heap. 



23 February, Last day of observations. No. 162 seen in small brush heap, 

 No. 145 in brush heap north of tree. 



At the first of the study period, No. 145 chased No. 162 from the tree and they 

 largely ignored one another in the brush heap east of the tree, though sometimes 

 bobbing at one another. About February 12-13 they began to display more 

 vigorously to one another in the east brush heap and no. 145 was seen to come to 

 the brush heap to chase or display to No. 162. At about this time No. 162, which 

 had concentrated her activities in the small section of brush heap, began to spend 

 more time north and east of it, chasing and fighting with the other lizards she 

 encountered. Until observations were discontinued, however, she still visited 

 the east brush heap section. This coincidence suggests that the increased number 

 and intensity of disputes with No. 145 in the east brush heap was a factor in 

 No. 162's moving into new areas that No. 145 did not visit. 



I have described a variety of interactions that can occur between 

 different individual lizards and under a variety of conditions. I would 

 Uke to present some of these accounts here and describe the relation- 

 ships of a single lizard to the others around him. 



(11) No. 5 was a subadult male in the Mona hibiscus hedge [fig. 9], 42 mm long 

 when first measured on 10 April and 46 mm long when last measured 8 May. 

 Between these two dates he was seen on 24 different days and interactions recorded 

 with eight other lizards. He used as a principal perch a hibiscus bush and fre- 

 quently visited a nearby fence post and the ground around both. During the 

 observation period no' changes in his activity range were noted. 



The activity range of No. 5 overlapped that of tliree smaller lizards and his 

 relationship with each of these was slightly different. 



(11a) No. 3, a 32 mm female, lived entirely within the area visited by No. 5. 

 She spent most of her time on the dead leaves on the ground but frequently 

 visited the hibiscus bush, which was No. 5's principal perch, throughout the 

 period of observation. She usually made these visits when No. 5 was elsewhere 

 and when he returned she sometimes fled back to the ground but more usually 

 No. 5 chased her away, not pursuing her on the ground but merely chasing her 

 out of the hibiscus. Several times No. 5 came to the hibiscus from somewhere 

 else, the fence post, the ground, in order to chase No. 3 away; on other occasions 

 when he returned for other reasons to find No. 3 there he would chase her. 



