Effects of temperature on development and growth in the tick,Haemaphysalis longicornis

Yano, Yasuhiro; Shiraishi, Shinya; Uchida, Teruaki

doi:10.1007/bf01200415

Cited by 47 publications

(43 citation statements)

References 4 publications

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“…Its complete life cycle requires a mean duration of 109.6 days, which is longer than those fed on Rattus fuscipes (Waterhouse) at condition of 27°C and 95% RH (72 days) (Doube and Kemp 1979). This discrepancy in life cycle period may be due to different temperature (Yano et al 1987), humidity (Despins 1992;Perret et al 2004), and host (Labruna et al 2002) among other ecological factors (Troughton and Levin 2007).…”

Section: Discussionmentioning

confidence: 94%

Life cycle of Haemaphysalis doenitzi (Acari: Ixodidae) under laboratory conditions and its phylogeny based on mitochondrial 16S rDNA

Chen

Guo

et al. 2011

Exp Appl Acarol

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The paper investigated the life cycle of the hard tick Haemaphysalis doenitzi under laboratory conditions and its phylogeny based on mitochondrial 16S rDNA. The results revealed that the complete life cycle of H. doenitzi requires a mean duration of 109.6 days ranging from 91 to 137 days and the average prefeeding, feeding and premoulting periods of larvae, nymphs and females and the eggs hatching period are 18.7, 26.9, 38.9, and 25.1 days, respectively. In addition, the weight of engorged females is highly correlated with the number of egg masses laid (r = 0.936, P < 0.001). The female reproductive efficiency index and reproductive fitness index are 13.4 and 12.8, respectively. The mean weight of the engorged nymphs (2.77 mg) moulting to females is much higher than those (1.68 mg) moulting to males, which could be used as an index to predict sexes in this species. The ratio of male to female is 1:1.01. Moreover, multisequence alignments and phylogenetic tree constructed based on the mitochondrial 16S rDNA sequences suggest that H. doenitzi is genetically close to H. longicornis.

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Section: Discussionmentioning

confidence: 94%

Life cycle of Haemaphysalis doenitzi (Acari: Ixodidae) under laboratory conditions and its phylogeny based on mitochondrial 16S rDNA

Chen

Guo

et al. 2011

Exp Appl Acarol

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“…The plausible explanation is that field conditions are more complicated and the complex interplay among photoperiod, temperature, relative humidity as well as some other ecological factors affects the development of the ticks (Fourie and Horak 1994;Padgett and Lane 2001;Labruna et al 2002). For example, low temperature has been shown to prolong the durations of egg hatching, molting, preoviposition and oviposition of H. longicornis (Yano et al 1987) possibly due to attenuated metabolic rate at low temperature (Jiang and Bai 1989). Moreover, the appearance in Ixodes rubicundus and Anocentor nitens has been also observed, i.e.…”

Section: Discussionmentioning

confidence: 97%

“…1), respectively. Since the fecundity appeared to be almost complete if the temperature was over 20°C (Yano et al 1987), lower temperature must be a responsible reason for the low fecundity. However, additional studies are required to further detail the development and reproductive preference of H. longicornis.…”

Section: Discussionmentioning

confidence: 99%

“…Under standard laboratory conditions, the bisexual strain has a mean duration of 135.8 days (Liu and Jiang 1998). When temperature is colder, its development period is prolonged (Yano et al 1987). Although the temperature and humidity preference of its eggs and engorged larvae and the development, survival, fecundity and behavior of its parthenogenetic strain in field have been studied (Heath 1979(Heath , 1981Sutherst and Bourne 1991), little is known about the ecological aspects of its bisexual strain in nature.…”

Section: Introductionmentioning

confidence: 99%

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Development and biological characteristics of Haemaphysalis longicornis (Acari: Ixodidae) under field conditions

Zheng

Chen

et al. 2010

Exp Appl Acarol

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The development and biological characteristics of Haemaphysalis longicornis were investigated under field conditions in Xiaowutai National Natural Reserve Area, North China. Unfed larvae, nymphs and adults were fed on rabbits and exposed to daylight. Three free-living stages were allowed to develop in field plot selected in a tick natural habitat. The host seeking behavior and seasonal occurrence were observed. Haemaphysalis longicornis were active from mid March to mid October. The premoult period of nymphs and preoviposition of females were regulating phases of their life cycle. The developmental durations of eggs, larvae and adults were constant under field conditions regardless when the development started. The oviposition periods in May and June were statistically shorter than those in July and August. The daily oviposition patterns of females engorged in May and June demonstrated unobvious peak, which differed from those engorged in July and August. The daily oviposition peak of the latter occurred on the 4th day of oviposition. Moreover, a positive correlation was found between the mass of the laid egg and the body weight of engorged females (r = 0.62, P < 0.001). The female reproductive efficiency indices were 2.9, 6.1, 10.5 and 9.0 in May, June, July and August, respectively. The mean weight (3.33 mg) of engorged nymphs molting to females was significantly higher than that (2.35 mg) of those molting to males (P < 0.001), but the body weights of both sexes were overlapping.

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“…These factors can also influence the timing of the life cycle. For example, Yano et al (1987) showed that when temperatures were low, engorged Haemaphysalis longicornis females took a longer time to lay eggs, and larvae and nymphs took longer to moult.…”

Section: Physiology and Behaviour Of Ticksmentioning

confidence: 99%

Rickettsia spp. and its Effects on the Physiology and Behaviour of Dermacentor Variabilis

Nabbout

Kho

Lloyd

et al. 2017

IJB

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The genus Rickettsia is home to a number of species of endobacteria that infect vertebrates as well as invertebrates, some of these species being pathogenic. Rickettsia bacteria are transmitted to mammals by Dermacentor variabilis ticks in North America, but while pathogenic effects in mammals have been well described, the effect of the bacteria in ticks is less well explored. Experiments were performed to determine how the physiology and behaviour of the Dermacentor variabilis (Say) (Arachnida: Ixodidae) are affected by infection with Rickettsia bacteria. DNA analysis was used to determine the presence of Rickettsia genus in ticks. The supercooling point (SCP), fat content, and temperature preference were compared between infected and uninfected ticks. Infection incidence with Rickettsia spp. was 45.8% in males, 46.4% in unengorged females and 48.3 % in engorged females. Eggs were more resistant to freezing, followed by larvae, then adult ticks. There was no change in the temperature preference between males vs. engorged females, and females vs. engorged females. The presence of Rickettsia spp. did not significantly affect supercooling point, fat content and water content. However, there was a difference between infected and uninfected females, both engorged and unengorged, in temperature preference. We conclude that in both, engorged and unengorged female ticks, Rickettsia bacteria affect their behaviour but not physiology.

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Effects of temperature on development and growth in the tick,Haemaphysalis longicornis

Cited by 47 publications

References 4 publications

Life cycle of Haemaphysalis doenitzi (Acari: Ixodidae) under laboratory conditions and its phylogeny based on mitochondrial 16S rDNA

Life cycle of Haemaphysalis doenitzi (Acari: Ixodidae) under laboratory conditions and its phylogeny based on mitochondrial 16S rDNA

Development and biological characteristics of Haemaphysalis longicornis (Acari: Ixodidae) under field conditions

Rickettsia spp. and its Effects on the Physiology and Behaviour of Dermacentor Variabilis

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