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How does the decline in the milkweed population affect the migration of monarch butterflies?
The decline in the milkweed population significantly impacts the migration of Monarch Butterflies, as milkweed is the primary host plant for their larvae. Without sufficient milkweed, monarchs struggle to reproduce and sustain their populations, leading to fewer butterflies making the long migration to their wintering grounds in Mexico. This disruption in their life cycle can threaten their survival and overall biodiversity. Consequently, the decline of milkweed poses a critical challenge to the future of monarch butterfly migration.
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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.
How is the milkweed important to butterflies?
I am growing Milkweed , and Monarch butterflies will only lay her eggs on them because monarch caterpillas can only eat this type of plant. :) I hope I helped everyone with this question :) Anymore question inbox me on facebook : Gustav V-Sloan
If the forest in central Mexico are used for timber what will happen to the monarch butterflies?
If the forests in central Mexico are used for timber, it could lead to significant habitat loss for the monarch butterflies, which rely on these areas for their winter migration and breeding. Deforestation can disrupt their ecological balance, resulting in a decline in their population. Additionally, the removal of trees can affect the availability of milkweed, the primary food source for monarch caterpillars, further jeopardizing their survival. Overall, timber extraction poses a serious threat to the already vulnerable monarch butterfly population.
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 are the stages of migration transition?
The stages of migration transition typically include: Pre-Transition: Characterized by high levels of both birth and death rates, leading to low population growth and limited migration. Transition: As a region develops, death rates decline due to improvements in healthcare, prompting increased migration as people seek better opportunities. Post-Transition: Birth rates begin to decline, stabilizing population growth; migration patterns may shift towards urbanization and international movement, often driven by economic factors. This framework illustrates how migration patterns evolve alongside socio-economic changes.
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
