In southwestern Quebec, eight species of grasshopper (Melanoplus femurrubrum, M. bivittatus, M. borealis, Orphulella specicosa, Chorthippus curtipennis, Encoptolophus sordidus, Chortophaga viridifasciata and Metrioptera roeseli) were studied during 1962, in relation to the following parasites: Mermis nigrescens (Nematoda), Eutrombidium trigonum (Acarina) and Sarcophagidae (Diptera). Mermis parasitism, in the situation studied, made little contribution to controlling the Acridid grasshopper populations in nature, with the probable regulation of nymphs of M. femurrubrum. In M. roeseli (Tettigoniidae), however, parasitism by this species appeared to have restricted both abundance of nymphs and adults and spatial distribution.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.115244 |
| Date | January 1963 |
| Creators | Sharma, Ravindra. N. |
| Contributors | Kevan, D. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Biology.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
Page generated in 0.0212 seconds