Table 2.

Average time, number of lots accessed, trees per plot, and total population estimate from 26 residential plots measured in Syracuse, New York, U.S. using different plot sizes.

Plot size (ac)	Time (min)		No. of lots		No. trees per plot			No. of residential trees
Plot size (ac)	Mean	SE^{^z}	Mean	SE^{^z}	Mean	SE^{^z}	Range	Estimate^{^y}	SE^{^z}	RSE^{^x}
1/24 (0.017 ha)	61.8	7.4	1.9	0.1	2.6	1.1	0–27	429,998	178,366	41.5
1/10 (0.04 ha)	84.1	9.9	2.8	0.2	4.6	1.3	0–33	316,968	90,708	28.6
1/6 (0.067 ha)	106.1	14.0	3.1	0.2	6.5	1.5	0–34	267,922	61,220	22.8

↵^zStandard error.
↵^yActual estimated number based on 100 one-tenth acre (0.04 ha) plots is 251,000 trees (SE = 35,000).
↵^xRelative standard error.