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In northern Nigeria, research surrounding intensive agricultural practices has been taking place for a number of decades, especially in the Kano Close-Settled Zone. Development plans for this region have focused on the use of imported technology and irrigation schemes, while neglecting traditional farming practices of the region. [7]
However, inbreeding also gives opportunity for genetic purging of deleterious alleles that otherwise would continue to exist in population and could potentially increase in frequency over time. Another possible negative effect of inbreeding is weakened immune system due to less diverse immunity alleles as a result of outbreeding depression. [6]
Food insecurity has a number of negative consequences for Nigeria. [7] It can lead to malnutrition, which can impair physical and mental development. It can also lead to social unrest, as people become desperate for food. There are many consequences of hunger, namely malnutrition, undernutrition, nutritional deficiencies child wasting.
Inbreeding is also used to reveal deleterious recessive alleles, which can then be eliminated through assortative breeding or through culling. In plant breeding, inbred lines are used as stocks for the creation of hybrid lines to make use of the effects of heterosis. Inbreeding in plants also occurs naturally in the form of self-pollination.
Genetic purging is the increased pressure of natural selection against deleterious alleles prompted by inbreeding. [1]Purging occurs because deleterious alleles tend to be recessive, which means that they only express all their harmful effects when they are present in the two copies of the individual (i.e., in homozygosis).
Inbreeding does not always result in negative fitness consequences, but when inbreeding is associated with fitness reduction it is called inbreeding depression. Inbreeding becomes of increasing concern as the level of homozygosity increases, facilitating the expression of deleterious alleles that reduce the fitness. Habitat fragmentation can ...
Bush burning in Nigeria has many negative effects on the environment, health, and economy, such as: Air pollution: Bush burning produces large amounts of smoke, ash, and particulate matter that pollute the air and reduce visibility. The smoke can also contain harmful substances, such as carbon monoxide, nitrogen oxides, sulfur dioxide, and ...
Many conservationists argue that genetic rescue could create unforeseen problems for species at risk, and that it overlooks the underlying problems that push so many species to the brink of extinction, including habitat loss due to human development. [11] As with the term genetic pollution, 'genetic rescue' has political connotations.