Transect
A walk or drive across an area during which an observer records the numbers of birds found without deviating from a straight path. In a 'line transect' only those birds occurring on the track followed are recorded, whereas in a 'belt transect' the area within observational range on either side of the line is also covered. Where a transect crosses more than one type of habitat comparisons can be made regarding species diversity and population density.From Peter Weaver's Birdwatcher's Dictionary
Copyright © 1981 by Peter Weaver