Translations:Effects of climate change on livestock/22/ja: Difference between revisions

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Created page with "==病原体と寄生虫== {{See also/ja|Climate change and infectious diseases}} 気候による熱ストレスは家畜の全疾病に対する免疫力を直接的に低下させる一方で、気候要因は多くの家畜病原体自体の分布にも影響を与える。例えば、東アフリカにおけるリフトバレー熱の流行は、干ばつ時やエルニーニョ現象発生時により激しくなることが..."
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Revision as of 10:39, 19 July 2025

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Message definition (Effects of climate change on livestock)
==Pathogens and parasites==
{{See also|Climate change and infectious diseases}}
While climate-induced heat stress can directly reduce domestic animals' immunity against all diseases, climatic factors also impact the distribution of many livestock pathogens themselves. For instance, [[Rift Valley fever]] outbreaks in East Africa are known to be more intense during the times of drought or when there is an [[El Nino]]. Another example is that of [[helminth]]s in Europe which have now spread further towards the poles, with higher survival rate and higher reproductive capacity ([[fecundity]]). Detailed long-term records of both livestock diseases and various agricultural interventions in Europe mean that demonstrating the role of climate change in the increased helminth burden in livestock is actually easier than attributing the impact of climate change on diseases which affect humans.
[[File:FCO-brebis.jpg|thumb|A sheep infected with bluetongue virus]]
Temperature increases are also likely to benefit [[Culicoides imicola]], a species of [[midge]] which spreads [[bluetongue virus]]. [[Ixodes ricinus]], a [[tick]] which spreads pathogens like [[Lyme disease]] and [[tick-borne encephalitis]], is predicted to become 5–7% more prevalent on livestock farms in Great Britain, depending on the extent of future climate change.

病原体と寄生虫

「Climate change and infectious diseases」も参照

気候による熱ストレスは家畜の全疾病に対する免疫力を直接的に低下させる一方で、気候要因は多くの家畜病原体自体の分布にも影響を与える。例えば、東アフリカにおけるリフトバレー熱の流行は、干ばつ時やエルニーニョ現象発生時により激しくなることが知られている。別の例として、ヨーロッパの蠕虫は現在より高緯度地域まで拡散しており、生存率の向上と繁殖能力（繁殖力）の増加を示している。ヨーロッパにおける家畜疾病と様々な農業介入の詳細な長期記録により、家畜の蠕虫負担増加における気候変動の役割を実証することは、実際には人間に影響を与える疾病への気候変動の影響を帰属させるよりも容易である。

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