A juvenile ecosystem is characterized by energy usage which is primari

A juvenile ecosystem is characterized by energy usage which is primarily directed towards

multiplication and growth of organisms
maintenance of biocenose
conservation of biocenose
reduced growth of plants
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UPSC Geoscientist – 2022
A juvenile or early successional ecosystem is characterized by high energy input directed primarily towards the accumulation of biomass, meaning rapid growth and reproduction (multiplication) of organisms, particularly primary producers. Energy efficiency in terms of complex food webs and nutrient cycling is lower compared to mature ecosystems.
– Juvenile ecosystems (early successional stages) focus on production and growth.
– Energy is channeled into accumulating biomass and increasing population size.
– Net primary productivity is often high, but respiration (maintenance cost) is relatively low per unit biomass compared to mature systems.
– Mature ecosystems focus more on maintenance, diversity, and efficient nutrient cycling.
Ecological succession describes the process of change in the species structure of an ecological community over time. Early stages are pioneer stages (juvenile ecosystems), while later stages are climax communities (mature ecosystems). Energy flow patterns change significantly during succession.
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