Processing and visualising association data from animal-borne proximity loggers

Table 1 Sample encounter logs recorded by crow-mounted “Encounternet” proximity loggers

this.ID	enc.ID	first.time	last.time	RSSI.max	RSSI.min	RSSI.mean	type
72	75	1,724,295,322	1,724,313,237	−14	−15	−14	1
66	68	1,726,936,124	1,726,936,124	−24	−24	−24	1
81	74	1,728,525,279	1,728,545,762	2	−16	−6	1
74	68	1,728,673,149	1,728,692,351	19	−11	8	1
74	76	1,728,812,496	1,728,832,965	25	−24	2	1
75	72	1,729,331,751	1,729,350,958	4	−18	−5	1

‘this.ID’ and ‘enc.ID’ are the identities of the receiving and transmitting tags, respectively; ‘first.time’ and ‘last.time’ are the start and end time of an encounter (recorded in tag-clock units of 1/64 s); the following three ‘RSSI’ columns give signal-strength statistics for the pulse sequence making up the encounter; and ‘type’ codes distinguish, among other things, tag-to-tag logs (type = 1) from error messages and master node commands (not applicable in this example)

ISSN: 2050-3385