Gorman - p. 3 
Basically, all of them are cyclical breeders, but the decline in the 
uplands is much more dramatic than in the lowlands both within and between 
species. Thus, montane populations regress earlier than lowland forms 
(eliminating the possibility that they are responsive solely to photoperiod), 
and more completely. 
Lowland populations of stratulus and cristatellus males were transplanted 
into a large outdoor cage in the mountains. The cristatellus did not survive, 
and when the first cohort was replaced with another, they too died. This 
implies that cristatellus may be absolutely limited from penetrating the rain- 
forest for physiological reasons, The stratulus did well in the upland cage, 
and their decline was exactly in phase with the free-living montane animals, 
and not with that of stratulus from the lowlands. 
Upland populations of krugi, cristatellus, stratulus and evermanni were 
brought to lowland cages. Reproductive decline did not occur in krugi, a 
result that was very different from the pattern of the upland populations 
in nature, 
so 
The upland cristatellus and stratulus brought to the lowlands showed 
delayed and less drastic reproductive decline. Thus, in all cases so far 
discussed, there appears to be direct environmental control over seasonal 
reproductive cycling. However, A. evermanni proved to be an exception. 
Although typically an upland species, this form thrived in the lowland 
cages. Mortality was low; they grew very fat. However, the lowland sample 
showed as marked a reproductive decline as the wild upland forms, i.e. 
transplantation to a new climate did not influence reproductive cycling, 
implying thus a firmer genetic control of this phenomenon in this species. 
5. Introduced populations. Gorman has new data on the distribution 
of A. extremus on St. Lucia. This species, introduced from Barbados, has 
a firm foothold and is sympatric with luciae. Contrary to the published 
observations of Lazell, who claimed that extremus did not seem to have any 
effect on luciae, Gorman found that the extremus often occurred in pure 
"enclaves" where luciae would be expected, but none were seen. Often 
quite nearby, pure patches of luciae were found, This is very reminiscent 
of the situation on Trinidad, although in this case there are no known 
cases of hybridization, 
Both species will defend territories against intruding males of either 
species, 
Despite the seeming success of extremus, it is spreading very slowly. 
It appeared well established only between Castries and Vigie Beach, 
Occasional individuals were seen at scattered localities in the northern 
third of the island (including one at Forestiere, which is inland and in 
the mountains), but it was not possible to document that these were estab- 
lished populations, Human transport is likely. 
