Stanley D. Gehrt and James E. Chelsvig. 2003. Bat activity in an urban landscape: patterns at the landscape and microhabitat scale. Ecological Applications 13:939–950.

Study area	Adjacent land use (%)				Size (ha)	DIST (km)	ADIST (km)	Traffic (mean no. vehicles per 24 h)	Total lights	White lights	Population density	Study area habitat (%)
	IC	RES	OPEN	AG								Woods	Open	Water
1	13	42	16	0	221	18	0	27850	42.8	0.0	54169	57	37	6
2	6	55	29	0	701	44	0.7	13640	3.2	2.7	33976	71	17	9
3	10	45	22	0	208	22	0	51175	37.0	1.6	24845	74	21	6
4	2	16	14	0	306	28	0	16650	4.3	0.3	4199	76	18	7
5	3	5	16	0	655	26	0	8750	2.5	0.2	13021	77	11	12
6	13	39	25	0	306	30	0	43500	8.2	5.8	66516	75	11	14
7	39	20	13	0	101	22	0	27400	45.4	0.0	102086	29	54	16
8	2	20	37	20	434	42	5.4	5100	7.3	1.7	9926	24	73	3
9	25	36	17	0	128	30	2	17633	5.0	1.4	60522	64	10	27
10	10	1	18	12	177	37	0.3	16650	4.4	0.3	23726	35	18	34
11	3	25	18	49	391	38	4.8	11450	6.1	3.5	11638	20	77	3
12	13	20	26	12	495	52	0.6	32567	8.2	7.0	33343	30	57	12
13	19	56	19	0	150	18	0	25800	53.2	3.8	104374	56	35	9
14	31	32	32	0	1507	33	5.7	75920	20.7	3.2	65334	39	45	16
15	10	24	35	22	1816	44	1.5	23055	5.2	0.5	52552	13	84	2
16	0	3	12	64	1214	80	8.4	3550	2.1	1.5	5258	20	70	10
17	2	19	73	6	324	59	0	5150	2.7	2.3	15624	15	35	50
18	0	5	14	81	121	91	0	1958	1.4	1.0	2862	85	14	1
19	2	7	4	88	121	78	0	450	0.9	0.9	725	45	45	10
20	1	6	6	85	162	96	0	4137	1.7	1.1	3561	80	15	5

   Note: See Study area and methods: Landscape effects in text for definitions of variables.