When the Europeans came to the Americas, they brought a variety of diseases which had not been introduced to the Natives. These diseases proved to be extremely deadly. Many explanations are given for the huge decrease in the numbers of Natives; however, these new diseases were a huge contributer. Very soon after the Europeans arrival in the Americas, observers noticed that the Natives were catching and dying from introduced diseases. The death tole from these diseases is impossible to calculate, but it was up to 90% of the population which was killed in some places. The Europeans would arrive to a much weakened and depleted population, which greatly facilitated their ability to conquer. Disease such as typhus, measles, influenza, Bubonic Plague, cholera, malaria, tuberculosis, mumps, yellow fever, and pertussis (whooping cough), and especially smallpox proved extremely deadly. Disease spread quickly through the Americas for several reasons. Firstly, the Natives medical techniques included sweat baths and cold water dippings which may have increased mortality rate. Secondly, the Europeans had much agriculture which allowed them to have more diseases and be more immune to them. Finally, the Natives had already been weakened by a hemorrhagic fever which compounded the effects of the new diseases.
The native population was drastically reduced by the introduction of Old World diseases. The exact percentage is unknown.
One major European killer of Native Americans was disease. Europeans brought diseases such as smallpox, measles, and influenza to the Americas, to which the indigenous peoples had no immunity. These diseases caused widespread devastation and significantly reduced the population of Native Americans.
European explorers and settlers brought diseases such as smallpox to America and the Native peoples did not have an immunity to them and it dramatically reduced their populations.
European lands claim to Native Americans by battleing their fears
European diseases killed so many Native Americans because the natives had no natural immunity. It is surmised that hundreds of thousands died.
European exploration of the Americas had a devastating impact upon the Native population. Specifically, the Europeans brought diseases with them that the Native Americans had no immunity against. The Native population was ultimately reduced by 90 percent.
The native population was drastically reduced by the introduction of Old World diseases. The exact percentage is unknown.
European disease had a devastating effect on the indigenous population of Native Americans. Smallpox, ravaged whole communities and is thought to have been a much more direct cause of the precipitous decline Indian population.
The native population was highly respected in terms of territorial possessions and religious beliefs.
The spread of European diseases had the greatest impact on Native Americans. Large numbers were wiped out by these foreign diseases they were unprepared to deal with.
They died because the europeans carried a disease with them called smallpox, and while they were used to this disease the native americans were not and their immune systems did not know how to fight it.
European exploration caused Native Americans to lose much of their land and exposed them to new weapons, beliefs and lifestyles. It also exposed them to European diseases that their bodies weren't accustomed to, leading to the deaths of millions of Native Americans from disease.
One major European killer of Native Americans was disease. Europeans brought diseases such as smallpox, measles, and influenza to the Americas, to which the indigenous peoples had no immunity. These diseases caused widespread devastation and significantly reduced the population of Native Americans.
Huge numbers of American native peoples died from European diseases.
The native people had never been exposed to European diseases and had no immunity.
The loss of many Indians or that Indians die because they spreded diseases
Non-native and invasive species can impact population size by outcompeting native species for resources, preying on native species, disrupting ecosystem dynamics, and spreading diseases. They can lead to declines in native populations by altering habitats and food availability. In some cases, invasive species can even drive native species to extinction.