Articles
REPRODUCTIVE ECOLOGY OF SCHIZOLOBIUM AMAZONICUM HUBER EX DUCKE AND SCLEROLOBIUM PANICULATUM VOGEL (CAESALPINIACEAE) AND ITS IMPORTANCE IN FORESTRY MANAGEMENT PROJECTS
Article number
437_4
Pages
65 – 70
Language
Abstract
The pollination ecology of two timber tree species was investigated in the eastern Amazon with the aim of contributing to the reproductive aspects of forest management.
Both trees, Sclerolobium paniculatum (S. pan.) and Schizolobium amazonicum (S.ama.), are well visited by different insects, mainly bees. S. pan. is a light demanding pioneer species in gaps and recently cleared areas with an efficient reproductive system.
It is a self-incompatible tree adapted to small insects, offering pollen and nectar, and producing large quantities of seed.
The flowering period extends from October to February.
The most common visitors are small to medium-sized bees in the Anthophoridae, Apidae, Megachilidae and Halictidae. S. ama. is also a light-demanding pioneer species, with mass flowering, when the trees shed their leaves and becomes completely covered with yellow blossoms.
The flowering period occurs from May to June.
During the morning, visitors to S. ama. search for nectar and pollen (mainly bees) and in the afternoon insects look for pollen.
Visitors to S. ama. are medium to large-sized bees (Anthophoridae, Apidae, Megachilidade), Lepidoptera and other small insects.
Bees are important pollinators of these two pioneer trees and even though they show self-incompatibility, these trees produce more seeds after bee visits.
Both trees, Sclerolobium paniculatum (S. pan.) and Schizolobium amazonicum (S.ama.), are well visited by different insects, mainly bees. S. pan. is a light demanding pioneer species in gaps and recently cleared areas with an efficient reproductive system.
It is a self-incompatible tree adapted to small insects, offering pollen and nectar, and producing large quantities of seed.
The flowering period extends from October to February.
The most common visitors are small to medium-sized bees in the Anthophoridae, Apidae, Megachilidae and Halictidae. S. ama. is also a light-demanding pioneer species, with mass flowering, when the trees shed their leaves and becomes completely covered with yellow blossoms.
The flowering period occurs from May to June.
During the morning, visitors to S. ama. search for nectar and pollen (mainly bees) and in the afternoon insects look for pollen.
Visitors to S. ama. are medium to large-sized bees (Anthophoridae, Apidae, Megachilidade), Lepidoptera and other small insects.
Bees are important pollinators of these two pioneer trees and even though they show self-incompatibility, these trees produce more seeds after bee visits.
Publication
Authors
G.C. Venturieri
Keywords
Pollination, bees, forest-management, Sclerolobium, Schizolobium, Caesalpiniaceae
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