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How does the decline in the milkweed population affect the migration of monarch butterflies?
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Why are the milkweed threatened?
Milkweed plants are threatened primarily due to habitat loss, agricultural practices, and the use of herbicides. Loss of habitat reduces the availability of suitable areas for milkweed to grow, leading to declines in populations. Additionally, milkweed is a primary food source for monarch butterflies, and the decline in milkweed plants has contributed to the decline in monarch butterfly populations.
What are the three demographic processes responsible for population growth or decline?
Population is affected by birth rate, death rate and migration.
If birth rate is constant and death rate decline population?
the population will increase. However, that assumes that net migration is also constant - or does not change sufficiently.
The scientist study population growth and decline worldwide is called?
The study of population growth and decline worldwide is called demography. It involves analyzing factors such as birth rates, death rates, migration patterns, and age distributions to understand population dynamics.
What aides the decline in population in the northeast and Midwest in the 1970's?
Factors such as deindustrialization, out-migration to the Sun Belt region, and the closure of factories contributed to the decline in population in the northeast and Midwest in the 1970s. The shift towards service-based industries also impacted job opportunities and population growth in these regions.
Decline in the total population of a city is called?
URBAN BLIGHT. meaning: exurban migration out of the cities due to declining economic, social and cultural situation.
What aided the decline in population in the northeastern and Midwest in the 1970s?
Factors such as deindustrialization, out-migration to Sunbelt states, and declining job opportunities contributed to the decline in population in the northeastern and Midwest regions in the 1970s. Industries moving to cheaper labor markets in the South and West also played a role in this population shift.
Why does wolf population on isle royale decline following a decline in the moose population?
The decline of moose population followed sooner or later by a decline in the wolves population because the is less for the wolves.
Which contributed most to the decline of the indus river?
Waves of migration
Which aided the declne in population in the northeast and Midwest in the 1970s?
Factors such as deindustrialization, out-migration, and economic restructuring contributed to the decline in population in the Northeast and Midwest in the 1970s. Industries were moving to other regions or countries, leading to job losses and population shifts away from these areas in search of better opportunities. The decline in population also impacted these regions' tax base and infrastructure.
What happens to population growth if the death rate is higher than the birth rate?
The population growth will decline since more people are dying then being born subject to condition that migration factor remains constant
The scientific study of population growth and decline worldwide is called what?
The scientific study of population growth and decline worldwide is called demography. It examines factors such as birth rates, death rates, migration patterns, and age distribution within a population.
