Table 1.

Building materials present in rooms and animal enclosures in communities of different development stages along a transect of Arequipa, Peru, in 2010. p-values are calculated using Fisher's exact test comparing the proportion of each building material in each development type with that in the other two types. Only major building materials were considered, and most habitats were comprised of several materials (columns may sum to >100%).

	rooms			animal enclosures
	invasion	pueblo joven	established communities	invasion	pueblo joven	established communities
fully plastered walls	34%***	58%***	75%***	3.4%	13%	19%*
cemented brick or stone	32%	29%***	21%***	17%	31%	35%
unmortared brick or stone	30%***	14%***	4.2%***	69%***	44%***	26%***
wire mesh	n.a.	n.a.	n.a.	21%	31%*	41%**
N	53	1459	1206	29	556	312

*p < 0.05, **p < 0.01, ***p < 0.001.