transect


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transect

(trăn-sĕkt′)
tr.v. tran·sected, tran·secting, tran·sects
To divide by cutting transversely.
n.
A usually straight line along which measurements or observations are made at regular intervals, as for purposes of ecological study.

tran·sec′tion n.

transect

[transekt′]
Etymology: L, trans + secare, to cut
to sever or cut across, as in preparing a cross section of tissue. See also transsect, transsection.

transect

a line across a habitat or habitats along which organisms are sampled in order to study changes that may occur along that line. Transects are most frequently used in studying changes in vegetation (often a particular species) across a physically changing habitat such as blanket bog or sand dunes. A belt transect may be considered as a widening of a line transect or as a continuous line of QUADRATS, and all plants within the belt are recorded, as opposed to only those t ouching the line in the case of the line transect. Recording in a belt transect is much more time-consuming but gives more accurate results. Association transects are very long and usually only dominant species or ASSOCIATIONS are recorded.
References in periodicals archive ?
Snorkel Survey Transect (SST) types: A = original USGS transects; B = approximate matches to original transects; C = new transects created by MORA staff.
To keep the tape close to the soil surface, we positioned two additional rebars within the arroyo on transect T5, and positioned one additional rebar permanently within the drainage channel for V-shaped transects T6, T7, and T8.
Individual monkey groups when seen were only documented once per survey, even if the group moved to a different sub-section of the transect.
Brief stops by the ROV to capture still images for identification of species (at a rate of about 1 image/min) and to avoid obstacles were considered to occur on transect.
The distance of each scat detection and covariate record from the start of each transect was calculated using ArcMap10.
Similar trends were also recorded in the mean transect count population in different vulture colonies during the study period.
Simultaneous towed video and diver belt transects (BT) were conducted to test the following hypothesis: the TVM does not differ in its ability to accurately estimate live adult queen conch densities from conventional methods using scuba in high-complexity (HC) and low-complexity (LC) habitats.
Additionally, principal component scores were plotted against each other for each transect to identifly trends in the relationships of the principal components among localities.
For this reason, the objective of the presented study was to verify the results of inventories performed by hunters, using a driving census in sampling plots and snow tracking on line transects.
Non-linear models were difficult to interpret given that we were examining transect similarity as a function of difference in elevation between transects.
A similar shaped distribution was revealed for only the first 3 transects for the Jun and Sep sampling periods; i.
8220;The Missouri Transect provides groundbreaking biotechnology tools for improving crop climate resilience and educating a workforce that understands the effects of climate change on plant adaptation,” said Kelvin Chu, program director at the NSF.