Title

Author; Crafford, J.E.

dc.contributor.advisor	SAJAR	en_ZA
dc.contributor.author	Author	en_ZA
dc.contributor.author	Crafford, J.E.
dc.coverage.spatial	Antarctica	en_ZA
dc.coverage.spatial	Crozet Island
dc.date.accessioned	2018-08-23T07:54:32Z
dc.date.available	2018-08-23T07:54:32Z
dc.date.created	1971	en_ZA
dc.date.created	1984
dc.date.issued	1971	en_ZA
dc.date.issued	1984
dc.identifier.uri	http://hdl.handle.net/123456789/7309
dc.description.abstract	abstract	en_ZA
dc.description.abstract	Wrack beds of the intertidal kelp Durvillea antarctica (Cham.) Har. on Marion Island (46�' S, 37�'E) sustain large kelp fly populations. Paractora dreuxi mirabilis (Seguy) is a primary decomposer of stranded Durvillea with larvae reaching a biomass of 2 g per kg of decomposing kelp (wet mass). At 10癈 Paractora completes its life cycle in 80-120 days. Egg, larval and pupal stages last 4, 60 and 40 days respectively. Larvae eat 0,5 times their own dry mass in kelp per day. They attain an individual live mass of up to 100 mg. The feeding and burrowing activity of larvae probably enhance microbial decay of beached kelp. Paractora larvae are preyed on by vertebrate insectivores and probably form an important link in nutrient and energy chains in the littoral zone on Marion Island.	en_ZA
dc.description.sponsorship	Sponsored by the National Research Foundation (South Africa)	en_ZA
dc.description.sponsorship	Sponsored by the National Research Foundation (South Africa)
dc.description.statementofresponsibility	Antarctic Legacy of South Africa	en_ZA
dc.description.statementofresponsibility	Antarctic Legacy Project
dc.language	en_ZA	en_ZA
dc.language	en_ZA
dc.publisher	South African Journal of Antarctic Research	en_ZA
dc.publisher	South African Journal of Antarctic Research Vol 14
dc.relation.ispartof	Vol 4	en_ZA
dc.rights	Copyright	en_ZA
dc.rights	Copyright
dc.subject	Antarctica	en_ZA
dc.subject	Marion Island
dc.subject	Entomology
dc.subject	Kelp Fly
dc.title	Title	en_ZA
dc.title	Life cycle and kelp consumption of Paractora dreuxi mirabilis (Diptera: Helcomyzidae): A primary decomposer of stranded kelp on Marion Island
dc.type	Articles	en_ZA
dc.type	Articles
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iso19115.mdformat.name	PDF	en_za
iso19115.mdidentification.deliverypoint	Antarctic Legacy of South Africa, Faculty of Science, Stellenbosch University. Private Bag X1, Matieland. Stellenbosch. South Africa.	en_za
iso19115.mdidentification.electronicmailaddress	antarcticlegacy@sun.ac.za	en-za