NEET BIOLOGY

Detailed explanation-1: -To do this, simply count the number present in a series of quadrat samples then divide the total by the number of samples to get an average count per quadrat. If you know the dimensions of your entire survey site you can then multiply this up to get an estimate of the total number of a species present.

Detailed explanation-2: -Belt Transect Method In this method, the transect line is laid out across the area to be surveyed and a quadrat is placed on the first marked point on the line. The plants and/or animals inside the quadrat are then identified and their abundance estimated.

Detailed explanation-3: -The length of the transect is specified, and usually measured with a tape, for example, a 50-meter fiberglass tapes. A compass bearing is often used to allow the transects to be parallel with one another.

Detailed explanation-4: -Transect counts, also known as Pollard walks, are fixed-routes where butterflies are recorded following easy rules, on a regular basis (ideally weekly) and during good weather conditions.