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Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae)
Dissertation (MSc (Entomology))--University of Pretoria, 1980.
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| Format: | Thesis |
| Language: | Afrikaans |
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University of Pretoria
2022
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| _version_ | 1867613634729869312 |
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| access_status_str | Open Access |
| author2 | De Villiers, W.M. |
| author_browse | De Villiers, W.M. |
| author_facet | De Villiers, W.M. |
| collection | Thesis |
| dc_rights_str_mv | © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Entomology))--University of Pretoria, 1980. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/85525 |
| institution | University of Pretoria (South Africa) |
| language | afr |
| last_indexed | 2026-06-10T12:39:16.035Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/85525 Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) De Villiers, W.M. Erasmus, Salome Wilma UCTD Temperatuur vog lewensloop eierontwikkeling Gryllus Bimaculatus Dissertation (MSc (Entomology))--University of Pretoria, 1980. A study of the life-cycle of G; bimaculatus, reared under laboratory conditions, on a fixed protein diet was undertaken. The functional relationship between temperature and development was determined and it was found that the relationship deduced for conditions of constant temperatures could successfully be applied to fluctuating temperatures. The development of the embryo was studied and illustrated, as well as the absorption of water in relation to temperature. It was found that the initial absorption of water is temperature dependent and that water absorption begins sooner at high than at lower temperatures. However, after water absorption has commenced uptake is independent of temperature. In spite of similarities between the cricket eggs and certain locust (e.g. Acanthacris) eggs, no drought-induced quiescence could be found in the former. Furthermore, it was found that free water is not necessary for development and eclosion of G. bimaculatus eggs. Zoology and Entomology MSc (Entomology) Unrestricted 2022-05-17T11:22:16Z 2022-05-17T11:22:16Z 2021/11/02 1980 Dissertation * https://repository.up.ac.za/handle/2263/85525 afr © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Temperatuur vog lewensloop eierontwikkeling Gryllus Bimaculatus Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title | Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title_full | Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title_fullStr | Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title_full_unstemmed | Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title_short | Die effek van temperatuur en vog op die lewensloop en eierontwikkeling van Gryllus Bimaculatus (De Geer) (Gryllidae) |
| title_sort | die effek van temperatuur en vog op die lewensloop en eierontwikkeling van gryllus bimaculatus de geer gryllidae |
| topic | UCTD Temperatuur vog lewensloop eierontwikkeling Gryllus Bimaculatus |
| url | https://repository.up.ac.za/handle/2263/85525 |