Assessing Trends in population
All population change in abundance through time. Most changes are just random fluctuation, increases or decrease varying about an average abundance. Depending on the scale of these variation, particularly over short time periods relative to the life span the organism , population may appear more or less stable. However, if the population size is observed closely , it in will be seen to very. If the trend is consistently upward ,the species may become a pest. If a downward trend is maintained, the population will go extinct.
A lot can be learned by monitoring the population of even a common spceies to verify that it is maintaining a strong populations . Given the power of humans to change entire landscape ,species that are common now may easily be rare in 50 or 100 years.
Assessing Trends in population All population change in abundance through time. Most changes are just random fluctuation, increases or decrease varying about an average abundance. Depending on the scale of these variation, particularly over short time periods relative to the life span the organism , population may appear more or less stable. However, if the population size is observed closely , it in will be seen to very. If the trend is consistently upward ,the species may become a pest. If a downward trend is maintained, the population will go extinct. A lot can be learned by monitoring the population of even a common spceies to verify that it is maintaining a strong populations . Given the power of humans to change entire landscape ,species that are common now may easily be rare in 50 or 100 years.
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