The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island
Augochlorella striata, Lasioglossum (Evylaeus) cinctipes, Lasioglossum (Evylaeus) comagenense, and Lasioglossum (Dialictus) laevissimum were studied on Cape Breton Island, Nova Scotia, throughout their flight season in 1987. The weather during the summer was unusually good, with above-average temper...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
1989
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crcansciencepubl:10.1139/z89-407 2024-06-23T07:51:51+00:00 The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island Packer, Laurence Jessome, Vincent Lockerbie, Cathy Sampson, Blair 1989 http://dx.doi.org/10.1139/z89-407 http://www.nrcresearchpress.com/doi/pdf/10.1139/z89-407 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 67, issue 12, page 2871-2877 ISSN 0008-4301 1480-3283 journal-article 1989 crcansciencepubl https://doi.org/10.1139/z89-407 2024-06-13T04:10:48Z Augochlorella striata, Lasioglossum (Evylaeus) cinctipes, Lasioglossum (Evylaeus) comagenense, and Lasioglossum (Dialictus) laevissimum were studied on Cape Breton Island, Nova Scotia, throughout their flight season in 1987. The weather during the summer was unusually good, with above-average temperatures and hours of sunshine but very low rainfall. Conversely, the previous summer had been very poor for bees, with comparatively few days suitable for foraging, particularly in July. Augochlorella striata was basically solitary but some nests produced one or, at most, two workers, thereby becoming eusocial. In other localities, L. cinctipes is known to be eusocial with well-developed morphological and physiological caste differentiation. However, most foundresses observed in 1987 were extremely small, smaller than usual for workers elsewhere, and none of the more than 100 nests produced adult workers or a reproductive brood. Most foundresses were either survivors of the worker brood from the previous year or unusually small reproductive brood females produced as a result of the bad weather in 1986. Lasioglossum comagenense was solitary or semisocial with one to four females occupying a nest. Lasioglossum laevissimum exhibited significant levels of pleometrosis and an extended period of worker foraging in summer. A comparison of the productivities of these four species indicates the importance of a flexible social system in a marginal climate. Article in Journal/Newspaper Breton Island Canadian Science Publishing Breton Island ENVELOPE(141.383,141.383,-66.800,-66.800) Canadian Journal of Zoology 67 12 2871 2877 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Augochlorella striata, Lasioglossum (Evylaeus) cinctipes, Lasioglossum (Evylaeus) comagenense, and Lasioglossum (Dialictus) laevissimum were studied on Cape Breton Island, Nova Scotia, throughout their flight season in 1987. The weather during the summer was unusually good, with above-average temperatures and hours of sunshine but very low rainfall. Conversely, the previous summer had been very poor for bees, with comparatively few days suitable for foraging, particularly in July. Augochlorella striata was basically solitary but some nests produced one or, at most, two workers, thereby becoming eusocial. In other localities, L. cinctipes is known to be eusocial with well-developed morphological and physiological caste differentiation. However, most foundresses observed in 1987 were extremely small, smaller than usual for workers elsewhere, and none of the more than 100 nests produced adult workers or a reproductive brood. Most foundresses were either survivors of the worker brood from the previous year or unusually small reproductive brood females produced as a result of the bad weather in 1986. Lasioglossum comagenense was solitary or semisocial with one to four females occupying a nest. Lasioglossum laevissimum exhibited significant levels of pleometrosis and an extended period of worker foraging in summer. A comparison of the productivities of these four species indicates the importance of a flexible social system in a marginal climate. |
format |
Article in Journal/Newspaper |
author |
Packer, Laurence Jessome, Vincent Lockerbie, Cathy Sampson, Blair |
spellingShingle |
Packer, Laurence Jessome, Vincent Lockerbie, Cathy Sampson, Blair The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
author_facet |
Packer, Laurence Jessome, Vincent Lockerbie, Cathy Sampson, Blair |
author_sort |
Packer, Laurence |
title |
The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
title_short |
The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
title_full |
The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
title_fullStr |
The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
title_full_unstemmed |
The phenology and social biology of four sweat bees in a marginal environment: Cape Breton Island |
title_sort |
phenology and social biology of four sweat bees in a marginal environment: cape breton island |
publisher |
Canadian Science Publishing |
publishDate |
1989 |
url |
http://dx.doi.org/10.1139/z89-407 http://www.nrcresearchpress.com/doi/pdf/10.1139/z89-407 |
long_lat |
ENVELOPE(141.383,141.383,-66.800,-66.800) |
geographic |
Breton Island |
geographic_facet |
Breton Island |
genre |
Breton Island |
genre_facet |
Breton Island |
op_source |
Canadian Journal of Zoology volume 67, issue 12, page 2871-2877 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z89-407 |
container_title |
Canadian Journal of Zoology |
container_volume |
67 |
container_issue |
12 |
container_start_page |
2871 |
op_container_end_page |
2877 |
_version_ |
1802642994195595264 |