Effects of introduced sika deer (Cervus nippon) and population control activity on the distribution of Haemaphysalis ticks in an island environment

• Published in: International journal for parasitology. Parasites and wildlife Vol. 11; pp. 302 - 307
• Main Authors: Doi, Kandai, Nishida, Katsunori, Kato, Takuya, Hayama, Shin-ichi
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.04.2020; Elsevier
• Subjects: Cervus nippon; females; Haemaphysalis flava; Haemaphysalis longicornis; Haemaphysalis megaspinosa; Haemaphysalis tick; hosts; hunters; Introduced sika deer; Island environment; islands; Ixodes; larvae; mammals; risk; ticks; Turdus; wildlife damage management; Introduced sika deer; Haemaphysalis tick; Haemaphysalis megaspinosa; Island environment; Cervus nippon
• ISSN: 2213-2244; 2213-2244
• DOI: 10.1016/j.ijppaw.2020.03.001

The effects of introduced mammal species on the ecology of parasites are often under investigated. The sika deeer, Cervus nippon, is host species of many hard ticks. We collected 8348 ticks on an island where sika deer were introduced. The most representative species was Haemaphysalis megaspinosa (n = 4198; 50.3%), followed by H. longicornis (n = 1945; 23.3%), H. cornigera (n = 1179; 14.1%), H. flava (n = 713; 8.5%), Ixodes turdus (n = 289; 3.7%), I. granulatus (n = 22; 0.3%), and H. hystricis (n = 2; <0.1%) on an island where sika deer were introduced. H. megaspinosa and H. hystricis have not previously been recorded on the Izu islands. The high abundance of H. megaspinosa indicated that the tick species may have been introduced with the sika deer. Furthermore, H. megaspinosa larvae were more abundant at collection sites 21–40 days after sika deer were caught by foot snare traps indicate that engorged female of this tick species were forced to drop off in a very limited area near the foot snare trap. This represented a risk for hunters and people associated with wildlife control visiting the area. [Display omitted] •Haemaphysalis megaspinosa, H. longicornis, H. cornigera were three dominant species of the tick fauna.•First record of H. megaspinosa and H. hystricis.•H. megaspinosa larvae was the most abundant at 21–40 days after sika deer was captured.