Simulation modeling of the effect of climatic factors on bluetongue virus infection in Australian cattle herds. II. Model experimentation

Mp, Ward; Carpenter, Tim E.

doi:10.1016/0167-5877(95)00567-6

Cited by 10 publications

(4 citation statements)

References 16 publications

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“…For example, local rainfall fluctuations (a period of drought) can have an important impact on vector populations, such as Culicoides spp, and the pathogens that they transmit. 28 A potential bias was introduced through repeated sample collection from individual cattle during the 3 years of the study. The 9,414 samples tested in this study represent 6,872 individual cattle: 5,038 cattle were tested once during the 3 years, 1,514 cattle were tested in 2 of the study years, and 320 cattle were tested in all 3 study years.…”

Section: Discussionmentioning

confidence: 99%

Exploratory spatial data analysis of regional seroprevalence of antibodies against epizootic hemorrhagic disease virus in cattle from Illinois and Indiana

Boyer

Ward

Wallace

et al. 2008

ajvr

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Section: Discussionmentioning

confidence: 99%

Exploratory spatial data analysis of regional seroprevalence of antibodies against epizootic hemorrhagic disease virus in cattle from Illinois and Indiana

Boyer

Ward

Wallace

et al. 2008

ajvr

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“…Studies have demonstrated that the vectors of the disease are affected by temperature [73,74] and have indicated a possible role of humidity [74] and precipitation [70]. In a study to investigate the effect of climate factors on Bluetongue virus infection in a simulated cattle herd, rainfall was identified as the most important factor in determining the prevalence of Bluetongue virus infection [75]. In addition to rainfall, warm temperatures favor vector breeding, but excessive temperatures may reduce the survival of adult vectors [76].…”

Section: Altered Patterns Of Animal Diseasesmentioning

confidence: 99%

The effect of global warming on beef production in developing countries of the southern hemisphere

Scholtz¹,

McManus²,

Leeuw³

et al. 2013

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Developing countries from the southern hemisphere will be confronted by the same beef production challenges caused by global warming, because these countries are at the same geographical positions in southern latitudes. Global warming is expected to have a more extreme effect on the southern hemisphere than on other continents and will have a negative effect on the beef production environments in these countries. The negative effects will include high ambient temperatures, nutritional stress and altered patterns of animal diseases. Heat stress in beef cattle on veld/savannah is expected to increase as a result of changing weather patterns on a global and regional scale. This may negatively influence food production from beef cattle for the human food chain. Negative effects of increased temperatures and thus heat stress can include lower reproductive rates and weaning weights. The effect of heat stress can be partly addressed by nutritional strategies, such as replacing rapid fermentable carbohydrates with saturated fatty acids and the feeding of more by-pass protein and dietary electrolytes. Global warming will also alter the distribution pattern of animal diseases and the vectors of some of these diseases. This may even include the spread to South American countries. Likewise the nutritional value of natural pastures may be influenced. The effect of global warming on the quality of pastures will depend on whether the global warming is a result of increased carbon dioxide levels or not. An improved understanding of the adaptation of beef cattle to their production environments is important, but adaptation is complex and thus difficult to measure. Fortunately, several proxy-indicators for adaptation such as reproductive, production and health traits are available. The selection of animals and genotypes that are better adapted to the production system, including heat stress, is possible and should be persuade to ensure sustainable beef production in hotter climates.

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“…Field studies showed that although the breeding sites of C. imicola and C. oxystoma are different, both need a moist environment (Braverman et al ., 1974; Braverman, 1978; Peters et al ., 2014), and thus rain may affect the breeding site by increasing moisture, resulting in population peaks following rain events (Venter et al ., 1997; Mellor et al ., 2000). Overall, the combination of different weather parameters such as rain, humidity and temperature, was suggested to affect Culicoides population dynamics and peak size (Ward & Carpenter, 1996; Braverman et al ., 2004).…”

Section: Introductionmentioning

confidence: 99%

The effect of ambient temperature fluctuations on Culicoides biting midges population dynamics and activity in dairy farms: a longitudinal study

Saroya

Gottlieb

Klement

2020

Medical Vet Entomology

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The effect of climatic factors on the presence of Culicoides Latreille (Diptera: Ceratopogonidae) was previously studied. Nevertheless, lack of laboratory rearing data hampers species‐specific prediction of weather fluctuations effect on population size. To determine fluctuations in population size in the field, we recorded Culicoides and other Nematocerans in seven Israeli dairy farms over two‐years (2011–2012) and analysed the association of their dynamics with fluctuations in ambient temperature and total rainfall. In six farms, the most abundant species were Culicoides imicola Kieffer and Culicoides schultzei (Enderlein) gp., primarily composed of parous females, and in one farm Culicoides obsoletus (Meigen) gp., mostly nulliparous females, were dominant. While the total number of insects was similar in both years, Culicoides numbers were significantly higher in 2012, but appeared later in the season and reached a higher peak. A multi‐variable linear regression model demonstrated positive association of C. imicola and C. schultzei numbers with the monthly multi‐annual ambient temperature and its specific deviation, but not with monthly rainfall. C. obsoletus populations peaked at spring and sharply decreased when temperature exceeded 20 °C, and were best modelled by adding quadratic terms. Weather‐specific estimation of population size under field conditions may enable to predict outbreaks intensity of Culicoides‐borne viruses.

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Simulation modeling of the effect of climatic factors on bluetongue virus infection in Australian cattle herds. II. Model experimentation

Cited by 10 publications

References 16 publications

Exploratory spatial data analysis of regional seroprevalence of antibodies against epizootic hemorrhagic disease virus in cattle from Illinois and Indiana

Exploratory spatial data analysis of regional seroprevalence of antibodies against epizootic hemorrhagic disease virus in cattle from Illinois and Indiana

The effect of global warming on beef production in developing countries of the southern hemisphere

The effect of ambient temperature fluctuations on Culicoides biting midges population dynamics and activity in dairy farms: a longitudinal study

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