NDLI: Spatio-temporal variation of colony structure and eusociality level of the Japanese sweat bee Lasioglossum (Evylaeus) duplex (Hymenoptera: Halictidae)

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Spatio-temporal variation of colony structure and eusociality level of the Japanese sweat bee Lasioglossum (Evylaeus) duplex (Hymenoptera: Halictidae)

Content Provider	Springer Nature Link
Author	Hirata, Masari Cronin, Adam L. Kidokoro, Midori Azuma, riko
Copyright Year	2004
Abstract	Colony structure and eusociality level of the sweat bee Lasioglossum (Evylaeus) duplex were studied in 2001 in Sapporo and Assabu, Hokkaido, northern Japan. Sakagami and his colleagues had also studied this species in Sapporo in 1957–1968. Brood size, sex ratio and queen–worker size dimorphism were geographically and temporally variable, indicating spatio-temporal variation at the eusociality level. Inseminated workers constituted only 7.9% of the populations in 1957–1968 Sapporo but about 60% in 2001 in Sapporo and Assabu. A few of the inseminated workers were believed to leave natal nests for independent colony founding. Thus, partial bivoltinism is likely in this sweat bee species. The presence of workers with developed ovaries and/or corpora lutea suggests the occurrence of worker oviposition.
Starting Page	75
Ending Page	79
Page Count	5
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	20
Issue Number	1
e-ISSN	14401703
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-12-07
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Colony structure Eusociality Halictidae Lasioglossum Worker fecundity
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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