Foraging loads of stingless bees and utilisation of stored nectar for pollen harvesting

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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We compared nectar, pollen and resin loads of individual workers among colonies from six Trigona species in Sabah, Borneo. Individual bees rarely collected large amounts of both nectar and pollen during the same foraging trip. Instead, comparison of crop contents across departing, flower-visiting, and
returning bees suggests that pollen-collecting workers often carried highly concentrated nectar in their crop upon nest departure. During their foraging trip, this crop nectar volume decreased progressively until crops were largely empty when they returned to their nest. Individually marked pollen foragers carried highly concentrated nectar when they left their nest, while crops and corbiculae from marked nectar foragers were empty upon departure. We suggest that a large proportion of previously stored and highly concentrated
nectar may be required for pollen adhesion to corbiculae and/or serve as fuel during foraging on nectarpoor flowers.
Titel in ÜbersetzungNektar-, Pollen- und Harzmengen von stachellosen Bienen und Benutzung des aufgespeicherten Nektar durch Pollensammlerinnen
OriginalspracheEnglisch
ZeitschriftApidologie
Jahrgang38
Ausgabenummer2
Seiten (von - bis)125-135
Anzahl der Seiten11
ISSN0044-8435
DOIs
PublikationsstatusErschienen - 2007

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