Invasive Species
why are cane toads causing massive damage to the local ecosystem in Australia?
the cans reproduce very quickly, and are so poisonous that no predators in the area can kill it
an animal or insect that causes problems for people, especially by damaging crops
pest
what happened to the culture of the Native Americans as a result of their encounter with the Europeans?
many oral traditions were lost, whole villages had to be abandoned and they had to join forces to protect what they could
smallpox
a contagious viral disease characterised by a fever and pus-filled pimples that often leave scars
what problems are the nutria causing in America?
they are causing lots of damage to marshes and wetlands
how do we know that people think the introduction of honeybees was a good thing for the American ecosystem?
they have been reintroduced many times since the 1600's because of their positive impact
feast
to eat a large amount
how could the Europeans use smallpox as a weapon against the Native Americans without dying themselves?
smallpox had been around in Europe for many years already and they were mostly immune
an idea that explains how something works or why something happens
theory
how much did the Native American population decrease during their encounter with the Europeans?
95%
is the following statement true or false? Why?
"Invasive species can reproduce slower than nat8ive species and will crowd the area and hog the food."
False, they do this by reproducing quicker that local speices
containing a substance that can cause sickness or death
poisonous
is the following statement true or false? why?
"Nobody lived in the Americas before 1492."
false, people think that 30-50 million people lived there, and they consisted of diverse groups of people with rich cultures
elder
one having authority by virtue of age and experience; an aged person
what kind of problems does the zebra mussel cause?
they eat lots of the food sources, and they clog up water intake valves for power plants and factories
how are the nutria and the zebra mussel different, when talking about how they arrived in their new environment?
the nutria was introduced on purpose and the zebra mussels were brought by accident
invasive
tending to spread very quickly
how did the Europeans manage to kill so many Native Americans so quickly?
using a very deadly viral disease called smallpox
very great, strong, or intense
profound
why did the British give the Native Americans blankets at Fort Pitt?
because they were infected with smallpox, and would kill many of the Native Americans very quickly
what different words can be used to describe non-native species?
exotic, alien, non-indigenous
introduced from a distant or foreign country
exotic
what effect did the arrival of the Europeans colonists have on the Native American population?
it decreased massively in a very short amount of time
encounter
to meet someone or something unexpectedly
what is the difference between an invasive species and a non-native species?