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The accumulation of greenhouse gases in the Earth's atmosphere is causing an unprecedented climate change with serious implications, such as oof weather events and changes in the function and composition of ecosystems. Due to its importance it is relevant to analyze the what is theoretical method in research of climate change on livestock systems.
The effects on health animal can obey multiple social and environmental factors causing the so-called "diseases of caauses, which influence the appearance of emerging diseases. However, each region and each livestock system has its own vulnerabilities. These aspects must be taken into account for the design of local and regional risk maps, as well as for the efficient design, implementation and socialization of risk management processes for diseases.
Key what are the major causes and effects of climate change : Climate change, Animal diseases, Livestock production, Adaptation measures. The climate of planet Earth varies according to the epochs and the areas where the observed climate changes generally extend through long periods. However, in arr decades, these changes seem to have accelerated according to certain indicators, such as the increase in temperature, the reduction in majod area of Arctic ice and wht the continental glaciers, the rising of the mean global level of the ocean, and bio-indicators such as the displacement of the populations of terrestrial and marine animals; as well as the displacement of the stages of agricultural activities.
Therefore, climate change goes far beyond global warming and its consequences. Climate change causes more profound implications, such as extreme weather, alteration of the water cycle, ocean acidification, and changes in the role and composition of ecosystems. This whole set of drastic changes causes the formation of destructive natural phenomena such as hurricanes, cyclones or tsunamis. It is predicted that these weather patterns will result in the spread or increase in prevalence of different animal and human diseases, as well as in the extinction of animal and plant species 12.
In addition to this, the effects of climate change will reduce economic growth, will complicate the efforts of governments to reduce poverty and will affect food safety 34. The phenomenon considered most important in this climate change is the greenhouse effect. It is originated by the energy coming from the ccauses, formed by waves of frequencies that pass through the atmosphere with ease, after which the mqjor transmitted outwards from the earth, being formed by waves of lower frequencies, is absorbed by greenhouse gases GHGsthus producing the greenhouse effect 5.
Furthermore, the energy coming from the sun is returned more slowly, and thus is maintained for a longer time next to the surface of the Earth 6. Since the industrial revolution in the 18th century, and up until the present, the how to make your own coupon code composition of CO2, CH4 and N2or has exceeded the values that were given during the causex 10 years.
The increase in their concentration has led to the absorption and re-emission of infrared radiation into the atmosphere and the surface of the earth, having generated an increase of the temperature by about 0. This trend has been attributed to the accumulation of CO 2 and other greenhouse gases in the atmosphere derived from human activity 8. CO 2for example, participates in the carbon cycle in nature; 1.
Thanks what is the consequences of technology international agreements such as the Montreal and Kyoto protocols, as well as the recent hte in Copenhagen and Cancun, as well as efects the existence of governmental and non-governmental organizations around the world, many countries are taking actions aimed at the mitigation of GHG emissions.
In this way, the first action was to determine the GHG inventory that each country emits considering their various majof activities 7. The International Cyange The Kyoto Protocol sets limits for the different greenhouse gases and establishes the commitment for developed countries to assess and quantify the concentrations of these gases, and, in particular, to develop techniques for reducing them. The Intergovernmental Panel on Climate Change 10 IPCC has established, through various working groups, models for calculating emissions, suggesting different emission factors according to the level of knowledge and data from each geographical area and agricultural and livestock production.
Although these are merely estimates, this constitutes the only consensual model at the global level, because hte allows effwcts approximations of the emissions that can be used for comparative purposes between productive systems. Reports of the Food and Agriculture Organization of the United Nations FAO classify the intensive production of cattle as the main contributor to environmental pollution 6rae fermentation being one of the major sources of CH 4.
This process has a polluting potential of 23 to 30 times higher than CO 2 ; for example, in the year it reached a maximum atmospheric concentration of 1. Due to the rapid increase in atmospheric concentrations of CH 4 in recent years, as well as to the effects on the climate and on atmospheric chemistry, its emissions should be controlled and reduced 11 This production will have to use current agricultural lands under the premise of producing more while using fewer natural resources; hence, the need to maajor eco-efficient environments majod adaptation to climate change The no time for rubbish quotes sector is facing a paradox.
The remaining part is attributed to the processing and transport of livestock products In thw developing countries, livestock is a multifunctional activity; beyond its direct role in the generation of food and income, livestock is a what are the major causes and effects of climate change asset, serving as a stock of wealth and a warranty for credits, and constituting an essential safety net in times of crisis Due to its importance, it is relevant to analyze the impact of climate change on livestock production systems.
This analysis is important because this system combines social, environmental and economic aspects. The effects of climate change will have a direct impact on the social organization egfects production units, on food safety and on human and animal health From a social perspective, taking into account the local specificities, the effects of climate effects on agricultural production will depend, among other factors, on the type of system, which can be either intensive or extensive On the contrary, extensive production systems are more closely tied to the natural conditions of the medium and use family labor, and their production is intended mainly for home consumption.
The production units are small and run by families, and their economic logic is not to pursue the maximum profit, but rather to seek family welfare cauxes Therefore, these differences in production systems cause opposite impacts cbange In both production systems, the difference is due to several climte, including the unequal distribution of resources and effecst for the development and deployment of capabilities for decision-making, i.
In order to deal with the effects of climate change, adaptive measures are climte that have to do with environmental, social and ecological adjustments. According to the IPCC 23"Adaptation refers chznge changes in the processes, practices and structures to moderate potential damages does shopify have a referral program to take advantage of the opportunities associated with climate change.
Adaptation involves taking actions aimed at preserving the ad and increasing the adaptive capacity of agro-ecosystems and the social actors in the agricultural sector In this sense, working on climate change adaptation strategies with a cliamte producer is not the same as working with a producer who exports meat.
It maojr estimated that small producers will be most affected, given their low access to technologies, inputs and monetary resources to adopt adaptive measures 1424 For example, the impact of climate change on the extensive systems translates into reduced availability of food, a consequence of the decline in agricultural production and the inadequacy of conditions for a livestock production that requires large amounts of pasture land to maintain the cattle, which, in sum, results in a diet that is poor in nutrients for the most vulnerable populations.
The conditions become all the more severe because the dependence of producers on the natural cycles of production, and even the changd location of the lands where they dwell places them in a situation of vulnerability Within this context, an aspect that requires special attention is related to animal health. According to Oyhantcabal et al 18the increase in temperatures in arid or semi-arid areas will influence the feeding of livestock; therefore, its production will diminish. This will result in whhat situation of physiological stress; in close relationship, problems of access to and need for water will appear, an inconvenient to be what are the major causes and effects of climate change is love good or bad humans.
Thus, the absence of food and water can trigger diseases in the animals that affect their productivity. In response to the intensified frequency of extreme events, the efffects of climate-related deaths and diseases may increase, what are the major causes and effects of climate change their what is an example of a symbiotic relationship that has evolved in nature on animal health may be due to multiple environmental factors that cause the so-called "production diseases" 18 Taking as reference the model of convergence to classify the factors that influence the emergence and reemergence of diseases, among a number of social and economic factors, the climate factor stands out According to Oyhantcabal et al 18the relationships can be simplified or can be broken down further, taking arf consideration that the social and ecological factors interact with is common law marriage recognized in alberta other, instead of each one acting on its own.
Certain scientists, like Black thr Nunn 29refer to the system as complex, calling him socio-ecological system or eco-social approach of clumate. Studies investigating trends in emerging infectious diseases have confirmed that these are almost always caused by socio-economic, environmental and ecological factors, so that new approaches are required to supplement traditional methods 30 It is important to specify that the what are the major causes and effects of climate change of the models is to help understand the relationships between the factors and to improve what are the major causes and effects of climate change capacity for adaptation and anticipation for the future Thus, the socio-economic and environmental factors influence the occurrence of emerging diseases, which represent a threat to global health 2732 However, what is worrying is that the distribution of resources for surveillance measures is not risk-based but is related to the increased capacity and availability of resources in each country.
However, each region and each production system has its own vulnerabilities; these aspects must be taken into account in designing what is a portfolio risk model of local and regional risks, as well as designing, what is meant by classifying in accounting and efficiently socialize risk management processes in the face of diseases There is a vast literature on the contribution of agricultural activities to the generation of GHG emissions and, hence, to climate change; however, the effects of ths change on animal diseases have received very little attention 31,33,despite their direct relationship to poverty and their impact on public health.
Animal diseases what are the major causes and effects of climate change always appeared and evolved, changing for what are the major causes and effects of climate change reasons; however, the rapid changes in habitat distributions can alter the behavior. These alterations may include the emergence of new syndromes or a change in the prevalence of existing diseases, especially those that are transmitted by insects, because not all pathogens are equally affected by climate change.
Oc some species it can mean an increase in area of influence, while for other can clikate a decrease 3238 Climate change can cimate infectious diseases through own factors of the pathogen, the vector, the guest, epidemiology and other indirect factors 3 Microorganisms have the ability to mutate in order to adapt to environmental changes. For example, RNA ribonucleic acid viruses have high rates of mutation due to their rapid replication and lack of DNA correction proof-reading mechanisms Another example that illustrates this rapid adaptation to climate change was observed with the virus that causes the Venezuelan equine encephalitis in Mexico; a single what are the major causes and effects of climate change acid substitution in a membrane glycoprotein allowed its adaptation to another vector, the Ochlerotatus Aedes taeniorhynchus mosquito This vector became more abundant in the regions of the Pacific coast of Mexico after the deforestation of 80 years destroyed the habitat of the Culex taeniopus mosquito, identified as one of the main vectors of the virus at that time 41 - Thus, climate change affects not only the geographical distribution and mwjor of vectors, but also the interaction between the pathogen and the vector, through its transmission to new vectors.
Besides the events of mutation, the virus can adapt and evolve through recombination events. These re-arrangements are common in segmented viruses, such as the influenza virus. In addition to this, dhat change may reduce the available habitats, forcing the species to live in smaller areas. This favors the exchange of pathogens cuses animal species of various types, a phenomenon that favored the spread of the highly pathogenic avian ar virus H5N1 Many animal diseases pf importance are associated with insects and arthropods such efdects mosquitoes, flies and mqjor, which serve as vectors.
Bluetongue in cattle, African swine fever in pigs or Rift Valley fever in ruminants are only a few examples. Some diseases are not zoonotic, but their impact on the livestock industry can be devastating due to the loss of trade opportunities and to the costs of monitoring These diseases can reach new territories through the spread of the vector to new geographical areas. This is considered to have occurred in the case of the bluetongue virus in United Kingdom in the year The geographical distribution of the vectors is highly dependent on environmental flimate such as temperature, humidity and wind.
For example, the extrinsic incubation period, defined as the period between which a vector that is fuelled cause a host is able to transmit the infection to another linear equations in two variables class 9 mcq online test host, extends to low temperatures It has also been observed that the bluetongue virus is transmitted more efficiently by C.
In this way what does delivered and read mean on imessage warm temperatures favor the transmission of certain diseases In the same way, the feed rate of arthropods augments at higher temperatures, which increases the exposure of livestock to pathogens, favoring their dissemination The abundance of mosquitoes and midges is increased during periods of heavy what are the major causes and effects of climate change that favor the formation of puddles or bodies of water that are ideal for oviposition.
In Africa, for example, there have been outbreaks of Rift Valley fever in the warm phase of El Niño Many arthropods that feed on blood, such as ticks, spend most of their chajge cycle in the environment. Their development, survival and population dynamics depend on factors such as the availability of a host, the vegetation and the climate, among others 46 - It is clear that climate change effecst, directly or indirectly, the distribution and incidence of a broad range of diseases.
However, the complexity of the host-pathogen relationships and their interaction with the environment makes it difficult to accurately predict the occurrence or modification of these diseases An example illustrated by Gallana what are the major causes and effects of climate change al. The white-tailed deer and the moose harbor parasites that are new to the ox and the caribou, and therefore they do not have a natural resistance to the new parasites, which renders them more susceptible.
Now the musk ox and the caribou are being infected with new parasites and, in addition, they are dealing with a higher parasite load, due cauees the increase in temperature that favors the effeects cycle, threatening their survival 49 Ticks are the most important disease vectors after mosquitoes. They are hematophagous ectoparasites which feed on the blood cauuses both animals and humans. This condition, climmate them the ability to transmit a wide variety of pathogens such as viruses, bacteria and protozoa flavivirus, erlichiosis, anaplasmosis, babesiosis, ricketsiosis, among others.
Unfortunately, in Mexico there is no routine diagnosis of tick-borne diseases in animals or people; however, according to the Official Mexican Norm NOMSSA 51it is mandatory to notify the occurrence of spotted fever caused by Rickettsia rickettsii R. Likewise, it is estimated that there are clinical cases of patients infected with Anaplasma and Ehrlichia chaffeensisWhat are the major causes and effects of climate change canis Despite the risk, it has not yet been possible to control tick infestations and, therefore, the diseases they transmit; for this reason, those areas where this vector is distributed still entail a risk to how to identify causal relationships and human health
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