Estimation of population

Transect

This records the distribution of plants along a line and is useful for showing changes in the vegetation of places like hillside, a pond etc

Procedure.

Get a long measuring tape or length of string marked at convenient intervals using a marker pen. This is laid along the selected line and every plant which touches it is recorded. Plants that do not actually touch it are ignored. The string is attached to 2m rule held apart.

Comments

problem of plant living in fresh water habitat

Buoyancy The density of fresh water is considerably less than that of the sea and such floatation is a greater problem for fresh water plankton. There is occasional flooding which submerges the plants. The water lilies, water lettuce, water hyacinth are able to stay afloat because of the air spaces in the lower part of the leaves as well as in the skins and roots.

SCIENCE is life

Search This Blog