It depends on what deciduous tree, if a cold deciduous or dry deciduous tree. Some cold deciduous trees keep their leaves for longer than usual, for different reasons:
1- Artificial light and warm weather in Autumn and Winter can cause a delay in falling leaves, because the tree reacts as if it's still in summer with long daylight hours and warm temperatures. But if it´s gets cold enough or frost is present, the leaves eventually die and fall off, but much later than they would. (some dead leves might stay on the tree, until Spring). On some trees, a few green leaves stay on the tree until new ones grow, speacilly in big cities.
2- There are some trees, like some oaks, that keep their dead leaves on until Spring, falling off before or while new ones grow again.
2-If it´s a dry-deciduous tree, it will only loose it´s leaves when it stops raining for a long period, and drought is present. If rain keeps falling sporadictly, the tree might keep it´s leaves as it´s got water to keep feeding them.
Deciduous trees and other types of plants lose their leaves unlike evergreen trees and plants, because deciduous have to lose their leaves to preserve water and better survive the winter weather conditions. But they must grow new foliage in suitable warmer seasons, this uses resources unlike the evergreens who don't have to expend. Though unlike the Evergreens the deciduous plants lose their leaves to prevent water loss and protect against damage from insects, while evergreens suffer greater water loss during the winter and also can experience greater predation pressure, especially while they are still small. Repairing leaves and keeping them functional may be more costly than just losing and regrowing them. Another advantage the deciduous plants have is removing leaves can help with the reduce of cavitation, cavitation is the cause of damage to Xylem vessels found in plants. This then allows deciduous plants to have xylem vessels with larger diameters and therefore a greater rate of transpiration (and hence CO2 uptake as this occurs when stomata are open) during the summer growth period.
They don't lose them ,they know where they are, they drop them because they don't need them anymore.
Deciduous trees loses their leaves in fall and regrow them in the spring.
Deciduous.
Deciduous trees lose their leaves in the autumn. Mostly these are broadleaf trees, but some conifers are also deciduous. In New Zealand, there are only a couple of species that mostly lose their leaves in the winter. The generalization that broadleaf trees lose their leaves in the winter is a northern hemisphere misbelief.
An evergreen tree's leaves never die and a deciduous tree's leaves die during the winter and fall. A deciduous tree drops its leaves in Autumn.
A crape myrtle is a deciduous tree, meaning that the leaves go dormant and fall off during fall and winter.
it means the leaves fall off in the winter
Deciduous.
Deciduous trees loses their leaves in fall and regrow them in the spring.
Trees that drop their leaves for winter are in a group called "Deciduous".
Deciduous trees shed their leaves in the fall.
Deciduous.
threes that lose their leaves in the winter are called deciduous trees. They lose their leaves to conserve moisture and reduce the amount of energy they must consume in order to stay alive. The leaves of some deciduous trees turn bright colors before they drop to the ground, while others simply fade or turn brown. Environmental factors and the genome of the tree affect how quickly the leaves fall.
Deciduous trees lose their leaves in the autumn. Mostly these are broadleaf trees, but some conifers are also deciduous. In New Zealand, there are only a couple of species that mostly lose their leaves in the winter. The generalization that broadleaf trees lose their leaves in the winter is a northern hemisphere misbelief.
An evergreen tree's leaves never die and a deciduous tree's leaves die during the winter and fall. A deciduous tree drops its leaves in Autumn.
A crape myrtle is a deciduous tree, meaning that the leaves go dormant and fall off during fall and winter.
Deciduous
It reduces moisture loss in the cold dry winter air.