2000
DOI: 10.21248/contrib.entomol.50.1.179-191
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Species-specific foraging strategies of the syntopical and synchronous bees Panurgus calcaratus (Scopoli, 1763) and Dasypoda hirtipes (Fabricius, 1793) (Hymenoptera: Apidae).

Abstract: Die Sammelstrategie der beiden endogäischen, oligolektischen syntop und synchron auftretenden Wildbienenarten Panurgus calcaratus (Scopoli, 1763) und Dasypoda hirtipes (Fabricius, 1793) wurden im Naturschutzgebiet Wahner Heide (Rheinland, BRD) untersucht. Saisonale und diurnale Rhythmik sowie die Sammelstrategien beider Arten wurden erfaßt, um eventuell bestehende Trennungsmechanismen oder Nischendiffenzierung aufzudecken. Neben dem Verproviantierungsverhalten der Bienen wurde die Oligolektie durch Pollenentna… Show more

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“…Females of the two species have a different tongue length but the same foraging duration on flowers of Scolymus. The time spent per flower for D. visnaga and D. maura (4.2 s and 3.8 s respectively) is higher than for D. hirtipes (0.7 s) (Levermann et al 2000). According to Klumpers et al (2019), the interaction between the length of a proboscis and the depth of corolla affects the handling time.…”
Section: Discussionmentioning
confidence: 94%
“…Females of the two species have a different tongue length but the same foraging duration on flowers of Scolymus. The time spent per flower for D. visnaga and D. maura (4.2 s and 3.8 s respectively) is higher than for D. hirtipes (0.7 s) (Levermann et al 2000). According to Klumpers et al (2019), the interaction between the length of a proboscis and the depth of corolla affects the handling time.…”
Section: Discussionmentioning
confidence: 94%