Difference between revisions of "Hard Ticks - Overseas"

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Many of the hard tick species that infect animals in the UK are also present in other parts of Europe and the rest of the world information on these can be found [[Hard Ticks - UK|here]]. There are many tick species that are important both in the effects of their ectoparasitism but also in their ability to transmit other infectious agents.
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#REDIRECT[[:Category:Hard Ticks - Overseas]]
 
 
''Ixodes spp.''
 
 
 
 
 
''Rhipicephalus spp.''
 
*Warmer climates
 
*Causes paralysis in livestock
 
*Vectors for diseases such as
 
**''Theileria parva'' which causes [[Theileria|East Coast Fever]]
 
**''Babesia bigemina'' which affects ruminants, mainly in Africa
 
**[[Babesia|''Babesia canis'']] and ''[[Ehrlichia canis]]'' which affects dogs in warmer climates worldwide
 
 
 
==''Boophilus spp.''==
 
These species are important due to their ability to transmit ''Babesia spp'' and ''[[Anaplasma marginale]]'' in cattle. They exist in tropical and subtropical climates and so are predominately found in Asia, Africa, central America and northern Australia. There are several important veterinary species, all of which are one host ticks and are mainly important in cattle though they can be seen in most ungulates.
 
====''Boophilus annulatus''====
 
{| cellpadding="6" cellspacing="0" border="1"
 
| Also known as:
 
| Blue cattle tick
 
Texas cattle fever tick
 
|-
 
|}
 
The entire life cycle of this tick is spent on a single host and can be completed in just 6 weeks. It is an important species as it is a vector for ''Babesia bigemina'' and ''Babesia bovis'' that are responsible for texas cattle fever. As well as its ability to transmit ''Anaplasma marginale'' like many other tropical hard ticks.
 
====''Boophilus microplus''====
 
{| cellpadding="6" cellspacing="0" border="1"
 
| Also known as:
 
| Tropical cattle tick
 
Southern cattle tick
 
|-
 
|}
 
This is considered the most serious external parasites of Australian cattle, though they also affect cattle accross the southern hemisphere and the southern states of the USA. It is able to complete its life cycle in just 2 months under optimal conditions and lay 2000 - 3000 eggs during this time. It is important in its ability to act as a vector for ''Babesia bigemina'', ''Borrelia theileri'' in South America and in Australia of ''Coxialla burnetti'' and ''Anaplasma marginale''. These organisms can be passed down for up to 5 generations of ticks regardless of the hosts on which they feed as they can be passed transovarially between generations.
 
 
 
 
 
''Amblyomma spp.''
 
*Warmer climates
 
*Transmits ''Cowdria ruminatium'' ([[Heartwater|heartwater]]) in Africa
 
*Transmits [[Q fever|'Q fever']] and [[Rocky Mountain spotted fever|'Rocky Mountain spotted fever']] in southern USA
 
 
 
''Hyalomma spp.''
 
*Warmer climates
 
*Old World
 
*Parasites a wide range of both domestic and wild animals
 
*Involved in the spread of [[Theileria|''Theileria'']] and [[Babesia|''Babesia spp.'']]
 
**E.g. ''H. aegyptium'' is a parasite of tortoises in North Africa which has been spread around the world by the pet trade
 
[[Category:Ticks]]
 
[[Category:To_Do_-_NickJ]]
 

Latest revision as of 13:43, 3 August 2010