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Land block details
Haemonchosis risk in New Zealand under changing climates
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Haemonchosis is an animal health issue caused by the highly pathogenic intestinal nematode, Haemonchosis contortus. Haemonchosis has historically been restricted to the warmer upper North Island for its acute, but sporadic outbreaks. Climate change will likely see changes in Haemonchosis spatial distribution and intensity.
The dataset - what is it?
The data shows historical and futuristic maps of New Zealand showing risk of haemonchosis at different Representative Concentration Pathways (RCP). RCPs are different amounts of greenhouse gas concentrations, from a low of 2.6 to 8.5.
The map above shows the predictedhaemonchosis risk for the year 2040 in the highest emissions scenario. The dataset includes further scenarios.
Why it's important
As the climate warms the distribution and prevalence of Haemonchosis will increase subsequently the importance of its management.
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How to use this information safely
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Fitness for purpose / limitations
This table indicates whether the dataset is suitable for different types of questions at different scales.
Note: Users should carefully consider their purpose as this dataset may not be suitable.
Operational
Absolute
Relative
Screening/scoping
Block/farm
No
No
No
No
Multi-farms(5+)
No
No
Maybe
Maybe
Catchment
Maybe
No
Maybe
Maybe
National/regional
Maybe
No
Maybe
Yes
Caveats
The estimated risk of haemonchosis is based on a simplistic model, which would benefit from further refinement. The probability and severity of a Haemonchus contortus outbreak is also highly dependant on the management strategies implemented at an individual farm level.
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Please note:
You can use this information to help form an understanding of haemonchosis risks in NZ under a changing climate.
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