Systematic & Applied Acarology ISSN 1362-1971 An international journal of the Systematic and Applied Acarology Society, published since 1996 [Aims] [Editors] [Content] [Subscriptions] [Contact details] [Society Homepage]

Systematic & Applied Acarology (2006) 11, 131-140

Observations on Ixodes eudyptidis Maskell (Acari: Ixodidae), Ornithodoros capensis Neumann (Acari: Argasidae), and other tick parasites of sea birds in New Zealand

A.C.G. HEATH

AgResearch, Wallaceville Animal Research Centre, PO Box 40063, Upper Hutt, New Zealand, 5140

E-mail: allen.heath@agresearch.co.nz

Abstract

The studies reported here represent a collection of experiments and observations on sea bird ticks over a number of years, undertaken on the rare occasions that material became available. Collection details from ticks in 70% ethanol were the source of basic seasonality data for 4 species. In addition, living Ixodes eudyptidis and Ornithodoros capensis collected from sea bird colonies were able to be fed in the laboratory using, respectively, mice and domestic chickens. Life cycle details were obtained from ticks kept at ambient temperature and in a moist atmosphere. Observations on birds in the field infested with I. eudyptidis showed that paralysis of the hosts was common, and in some instances was reversible once ticks were removed. Examples of paralysis caused by other ticks and the implications for bird conservation in New Zealand are discussed.

Key words: ticks, sea birds, paralysis, New Zealand

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