What attracts larval Ixodes hirsti (Acari: Ixodidae) to their host?

Oorebeek, Margot; Sharrad, Robert D.; Kleindorfer, Sonia

doi:10.1007/s00436-008-1238-3

Cited by 19 publications

(14 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…When the atmosphere is sufficiently wet they are likely to walk towards odor secreted by host skin [44,45]. The larvae of I. hirsti seem to be more sensitive to shade and heat, while they were unresponsive to CO 2 concentration and host odor [46]. Radiation heat and shadowing caused the greatest percentage of I. rubicundus to display an appetence response; shadowing and radiation heat had the least effect on R. punctatus [22].…”

Section: Discussionmentioning

confidence: 99%

CO2 flagging - an improved method for the collection of questing ticks

et al. 2012

View full text Add to dashboard Cite

BackgroundMost epidemiological studies on tick-borne pathogens involve collection of ticks from the environment. An efficient collection method is essential for large sample pools. Our main aim was to evaluate the efficacy of a new method, where traditional flagging was enhanced by the use of CO2 dispersed into the white flannel. The CO2 was spread through a rubber hose network inserted into the flag blanket. The research was conducted in spring, in March-April 2011 in two locations from Cluj County, Romania.MethodsThe research was conducted in March-April 2011 in two locations from Cluj County, Romania. The flag to be tested contained a fine silicone rubber hose network which dispersed the CO2 in the shaft. On each collection site n=30 samplings were performed. Each sampling consisted in the simultaneous use of both flags (with and without CO2) by two persons. The CO2 concentration level on the flag canvas surface was measured. The efficacy of the method was determined by counting comparatively the total number of ticks and separate developmental stage count.ResultsUsing the CO2 improved flag, 2411 (59%) Ixodes ricinus and 100 (53.8%) Dermacentor marginatus ticks were captured, while the CO2-free flag accounted for the collection of 1670 I. ricinus (41%) and 86 (46.2%) D. marginatus ticks. The addition of CO2 prompted a concentration difference on the surface of the flag ranging between 756.5 and 1135.0 ppm with a mean value of 848.9 ppm.ConclusionThe study showed that the CO2 enhanced sweep flag increased the ability of I. ricinus (p < 0001) but not of D. marginatus to be attracted to the flag blanket.

show abstract

Section: Discussionmentioning

confidence: 99%

CO2 flagging - an improved method for the collection of questing ticks

et al. 2012

View full text Add to dashboard Cite

show abstract

“…In order to evaluate the potential influence of climatic conditions, weather variables were registered as follows: air temperature and relative air humidity were recorded during every sampling tour and at each location using a thermo‐hygrometer (P330, Carl Roth GmbH Karlsruhe, Germany). Data were recorded before the start of each sampling at ground level as well as at 1 m height to cover the mean questing heights of ticks (Adams et al , Mejlon and Jaenson , Oorebeek et al ). Soil temperature was measured with an inserting thermometer.…”

Section: Methodsmentioning

confidence: 99%

Abundance and seasonal activity of questingIxodes ricinusticks in their natural habitats in southern Germany in 2011

Schulz

Mahling

Pfister

2014

Journal of Vector Ecology

View full text Add to dashboard Cite

Questing ticks were sampled monthly over a period of 11 months from February, 2011 to December, 2011 at 13 sites in southern Germany using the flagging method. The ticks were identified to species, gender, and stadium. Although both I. ricinus and D. reticulatus were sampled, this study concentrated on I. ricinus, since it was the most abundant tick to be found. Additional weather data (air and soil temperature, relative air humidity, precipitation, sunshine duration) were recorded on each sampling site and the local vegetation described. A total of 14, 394 ticks was collected (7,862 larvae, 5,568 nymphs, 964 adults) and their activity was recorded in order to determine the seasonal activity pattern over different periods of the year. In contrast to the widely accepted pattern of a bimodal seasonal activity in moderate areas with a dominant peak in spring and a minor peak in autumn, a unimodal activity pattern was found for all development stages on six of the 12 sampling sites. Tick abundance was compared to weather variables. Tick host-seeking activity was found to be significantly dependent on the temperature at ground level, precipitation, and sunshine duration as well as relative air humidity. Adult ticks showed a positive correlation with the duration of sunshine, whereas nymphs were mostly unaffected by this phenomenon. Journal of Vector Ecology 39 (1): 56-65. 2014.

show abstract

“…(), Schlotfeldt and Kleindorfer (), Galligan and Kleindorfer (), Oorebeek et al. (), Myers et al. ().…”

Section: Methodsunclassified

“…2c). Vegetation at each site, excluding "Low Rainfall 2," is described in Rix (1976), Ford andPaton (1977, 1982), Westphal et al (2003), Kleindorfer et al (2006), Schlotfeldt and Kleindorfer (2006), Galligan and Kleindorfer (2008), Oorebeek et al (2009), Myers et al (2010. Vegetation at "Low Rainfall 2" (Port Lincoln) comprises mallee: Coastal White Mallee (Eucalyptus diversifolia) and Yorrell (Eucalyptus gracilis) are dominant tree species found throughout thickly vegetated areas; E. diversifolia is often accompanied by understorey species including Wallowa (Acacia calamifolia), Coastal Velvet-bush (Lasiopetalum discolour), Felted Wallaby Bush (Beyeria lechnaultii), Dwarf Hop Bush (Dodonaea humilis), and Shiny Ground Berry (Acrotriche patula).…”

Section: Study Sitesmentioning

confidence: 99%

Rainfall can explain adaptive phenotypic variation with high gene flow in the New Holland Honeyeater (Phylidonyris novaehollandiae)

Myers

Donnellan

Kleindorfer

2012

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

Identifying environmentally driven changes in traits that serve an ecological function is essential for predicting evolutionary outcomes of climate change. We examined population genetic structure, sex-specific dispersal patterns, and morphology in relation to rainfall patterns across an island and three peninsulas in South Australia. The study system was the New Holland Honeyeater (Phylidonyris novaehollandiae), a nectarivorous passerine that is a key pollinator species. We predicted that rainfall-related mechanisms would be driving local adaptation of morphological traits, such that in areas of lower rainfall, where nectar is less available, more insectivorous traits – shorter, deeper bills, longer tarsi, and longer wings – would be favored. The study populations differed in phenotype across the Eyre, Yorke, and Fleurieu Peninsulas and Kangaroo Island despite high gene flow (single continuous population) and sex-biased dispersal (males were philopatric and females dispersed). We tested the role of rainfall in shaping the observed phenotypic differences, and found strong support for our predicted relationships: birds in areas of higher rainfall had higher condition indices, as well as longer bill-head length, deeper bills, and shorter tarsi. Bill depth in males in high-rainfall sites showed signals of stabilizing selection, suggesting local adaptation. In addition to these local indications of selection, a global pattern of directional selection toward larger size for bill-head length, bill-nostril length, and wing length was also observed. We suggest this pattern may reflect an adaptive response to the relatively dry conditions that South Australia has experienced over the last decade. We conclude that rainfall has shaped aspects of phenology in P. novaehollandiae, both locally, with different patterns of stabilizing and directional selection, and globally, with evidence of adaptive divergence at a landscape scale.

show abstract

What attracts larval Ixodes hirsti (Acari: Ixodidae) to their host?

Cited by 19 publications

References 40 publications

CO2 flagging - an improved method for the collection of questing ticks

CO2 flagging - an improved method for the collection of questing ticks

Abundance and seasonal activity of questingIxodes ricinusticks in their natural habitats in southern Germany in 2011

Rainfall can explain adaptive phenotypic variation with high gene flow in the New Holland Honeyeater (Phylidonyris novaehollandiae)

Contact Info

Product

Resources

About