The tick Ixodes uriae (Acari: Ixodidae): Hosts, geographical distribution, and vector roles

Muñoz-Léal, Sebastián; González‐Acuña, Daniel

doi:10.1016/j.ttbdis.2015.07.014

Cited by 40 publications

(35 citation statements)

References 98 publications

(114 reference statements)

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“…For example, seven different arthropodborne viruses (arboviruses) were identified in I. uriae ticks collected from King penguin colonies on Macquarie Island in the subantarctic [24]: Nugget virus, Taggert virus, Fish Creek virus, Precarious Point virus, and Catch-me-cave virus, all of which belong to the order Bunyavirales (Nairoviridae and Phleboviridae), a member of the Reoviridae (Sandy Bay virus, genus Orbivurus), and a member of the Flaviviridae (Gadgets Gully virus) [23][24][25]. Notably, I. uriae is the only species of tick with a circumpolar distribution and is found across the Antarctic peninsula [26,27]. I. uriae are mainly associated with nesting seabirds and feed on penguins in the summer months, using off-host aggregation sites for the reminder of the year [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Sustained RNA virome diversity in Antarctic penguins and their ticks

et al. 2020

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Despite its isolation and extreme climate, Antarctica is home to diverse fauna and associated microorganisms. It has been proposed that the most iconic Antarctic animal, the penguin, experiences low pathogen pressure, accounting for their disease susceptibility in foreign environments. There is, however, a limited understanding of virome diversity in Antarctic species, the extent of in situ virus evolution, or how it relates to that in other geographic regions. To assess whether penguins have limited microbial diversity we determined the RNA viromes of three species of penguins and their ticks sampled on the Antarctic peninsula. Using total RNA sequencing we identified 107 viral species, comprising likely penguin associated viruses (n = 13), penguin diet and microbiome associated viruses (n = 82), and tick viruses (n = 8), two of which may have the potential to infect penguins. Notably, the level of virome diversity revealed in penguins is comparable to that seen in Australian waterbirds, including many of the same viral families. These data run counter to the idea that penguins are subject to lower pathogen pressure. The repeated detection of specific viruses in Antarctic penguins also suggests that rather than being simply spill-over hosts, these animals may act as key virus reservoirs.

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Section: Introductionmentioning

confidence: 99%

Sustained RNA virome diversity in Antarctic penguins and their ticks

et al. 2020

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“…As a result, these organisms play leading roles in the evolution of life histories (Montichelli , Cable and van Oosterhout ). Hematophagous ectoparasites, a group that includes ticks, mites and insects, compete directly with their host for critical nutrients, and can act as vectors for bacterial and viral agents that challenge the hosts’ immune system (Olsen et al , Szep and Møller ) while at the same time reducing the capacity of the host to mount an immune response to the challenge (Saino et al , Pryor and Castor ). These ectoparasites can affect the fitness of hosts through direct mechanisms, i.e., by causing the deaths of adults (Gaston et al , Devevey and Christe ) and juveniles (Hawlena et al , Hillegass et al ); and through indirect mechanisms, such as retarding the rate at which offspring develop (Moss and Camin , Merino and Potti ).…”

Section: Introductionmentioning

confidence: 99%

“…Those are two characteristic life‐history traits of colonial seabirds (Lack ), so it follows that haematophagus ectoparasites infest many species belonging to this group (Feare , Duffy ). The seabird tick Ixodes uriae is the most widely distributed tick in the world, parasitizing over 60 host species in the circumpolar regions of both hemispheres, and acting as a vector for a number of potentially virulent pathogens (Dietrich et al , Muñoz‐Leal and González‐Acuña ). The consequences of infestation with seabird ticks can include retarded growth and mortality of offspring (Bergström et al , Mangin and Gauthier‐Clerc ), and in extreme cases, adult mortality (Gauthier‐Clerc et al ).…”

Section: Introductionmentioning

confidence: 99%

Limited consequences of infestation with a blood‐feeding ectoparasite for the nestlings of two North Pacific seabirds

Hipfner

Bertram

Drever

2019

Journal of Avian Biology

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The seabird tick Ixodes uriae parasitizes over 60 host species in the circumpolar regions of both hemispheres. To assess the impacts of these ticks on the growth and development of nestling seabirds, we used a logistic growth model to interpolate between successive measures of mass (g) and wing chord (mm) for 558 Cassin's auklet Ptychoramphus aleuticus and 344 rhinoceros auklet Cerorhinca monocerata chicks over 11 years (1997–2008, less 2003) on Triangle Island, British Columbia, Canada. From the model, we estimated the asymptotic measure and the age at inflection point for each chick's growth trajectory, and assessed their relationships with tick load relative to other sources of annual and seasonal variation in growth. Most chicks (72.4% of Cassin's auklets, 62.2% of rhinoceros auklets) hosted ≥ 1 ticks, and the median tick load on infested chicks was two in both species. Infestation rates varied by a factor of about two among years (0.42 to 0.87 overall), but were uncorrelated between species and with air temperatures over the preceding winter. The probability of hosting a tick declined strongly with chick age, mainly in the first 20 days after hatching, and to near zero by fledging. Asymptotic weights and/or wing lengths declined with tick load in both species, but at normal loads the reductions were minor relative to those imposed by other factors; only at very high loads, which were rare, were effects likely to be biologically relevant. Tick load and survival to fledging were unrelated in both species. While our study found little influence of ticks, we believe there is need for further study of the relationships between parasites and seabird demography, especially in light of ongoing environmental change.

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“…Of these, Ixodes uriae has the largest distribution, and is the most studied species (Fig. 1;Coulson et al, 2009aCoulson et al, , 2009bMcCoy et al, 2003;Muñoz-Leal and González-Acuña, 2015;Ols en et al, 1993). Hard ticks have been recorded feeding on seabirds belonging to the orders Charadriiformes, Phaethontiformes, Sphenisciformes, Procellariiformes, and Suliformes (Dietrich et al, 2011;Gauthier-Clerc et al, 2003;Ramos et al, 2005).…”

Section: Ticksmentioning

confidence: 99%

Parasites of seabirds: A survey of effects and ecological implications

Khan

Provencher

Forbes

et al. 2019

Advances in Marine Biology

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Contentsand pelicans (Pelecaniformes) and marine seaducks and loons (Anseriformes and Gaviiformes). We found that the seabird orders of Charadriiformes and Procellariiformes were most represented in the parasite-seabird literature. While negative effects were reported in seabirds associated with all the parasite groups, most effects have been studied in adults with less information known about how parasites may affect chicks and fledglings. We found studies most often reported on negative effects in seabird hosts during the breeding season, although this is also the time when most seabird research occurs. Many studies report that external factors such as condition of the host, pollution, and environmental conditions can influence the effects of parasites, thus cumulative effects likely play a large role in how parasites influence seabirds at both the individual and population level. With an increased understanding of parasite-host dynamics it is clear that major environmental changes, often those associated with human activities, can directly or indirectly affect the distribution, abundance, or virulence of parasites and pathogens. Flea seabird Mites seabird Protist sea duck Virus seaduck Avipoxvirus seabird Flies seabird Mosquitoes seabird Protists Sea duck Virus seafowl 4 Junaid S. Khan et al.

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The tick Ixodes uriae (Acari: Ixodidae): Hosts, geographical distribution, and vector roles

Cited by 40 publications

References 98 publications

Sustained RNA virome diversity in Antarctic penguins and their ticks

Sustained RNA virome diversity in Antarctic penguins and their ticks

Limited consequences of infestation with a blood‐feeding ectoparasite for the nestlings of two North Pacific seabirds

Parasites of seabirds: A survey of effects and ecological implications

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