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Transcript of Sampling Techniques
or sessile animals best for sampling plants Random number generators allow
random plots to be chosen based on
a co-ordinate system. random systematic What are the limitations of this approach? the point quadrat can be placed at
set intervals along the line transect the percentage of each species within
the quadrat can be estimated estimating percentage cover using the grids within the quadrat you can
estimate the coverage by a single species Do's & Don'ts it is important to standardise the procedure in this case, flowers occuring >50% inside the quadrat are counted, whereas flowers occuring <50% inside the quadrat are not. Sweep Netting Kick Sampling a net is held downstream so that the
disturbed stream bed flows into the net this sampling method is recommended for targetting aquatic invertebrates
and some small species of fish Mist Netting the net is swept over plants
such as the soybean shown here this method is ideal for sampling insects Mist netting is used for catching birds as part of mark, release and recapture programs such as bird ringing. Pitfall Traps Longworth Traps used for catching insects used for catching small mammals trapping small mammals is usually as part of a mark, recapture and release program